From 4b3f01e27b9c8ae1f083584aecf109b3dda31766 Mon Sep 17 00:00:00 2001
From: Enric Tobella <etobella@creublanca.es>
Date: Thu, 22 Oct 2020 21:34:12 +0200
Subject: [PATCH] [MIG] kpi_dashboard: migration to 13.0

---
 kpi_dashboard/__manifest__.py                 |    4 +-
 kpi_dashboard/models/kpi_kpi.py               |    3 +-
 kpi_dashboard/security/security.xml           |    0
 kpi_dashboard/static/lib/nvd3/d3.v3.js        | 9503 +++++++++++++++++
 kpi_dashboard/static/lib/nvd3/nv.d3.css       |  427 +
 kpi_dashboard/static/lib/nvd3/nv.d3.js        | 5985 +++++++++++
 .../static/src/js/dashboard_controller.js     |    7 +-
 .../static/src/js/dashboard_model.js          |    2 +-
 .../static/src/js/dashboard_renderer.js       |    1 -
 kpi_dashboard/static/src/js/lib/nvd3.js       |   50 +
 .../static/src/js/widget/abstract_widget.js   |    9 +-
 .../static/src/js/widget/counter_widget.js    |    1 -
 .../static/src/js/widget/graph_widget.js      |   13 +-
 .../static/src/js/widget/integer_widget.js    |    5 +-
 .../static/src/js/widget/meter_widget.js      |    4 +-
 kpi_dashboard/tests/test_formula.py           |    8 +-
 kpi_dashboard/tests/test_kpi_dashboard.py     |    4 +-
 kpi_dashboard/wizards/kpi_dashboard_menu.py   |    3 +-
 18 files changed, 16002 insertions(+), 27 deletions(-)
 mode change 100755 => 100644 kpi_dashboard/security/security.xml
 create mode 100644 kpi_dashboard/static/lib/nvd3/d3.v3.js
 create mode 100755 kpi_dashboard/static/lib/nvd3/nv.d3.css
 create mode 100755 kpi_dashboard/static/lib/nvd3/nv.d3.js
 create mode 100644 kpi_dashboard/static/src/js/lib/nvd3.js

diff --git a/kpi_dashboard/__manifest__.py b/kpi_dashboard/__manifest__.py
index 835f01bb..9dc410d2 100644
--- a/kpi_dashboard/__manifest__.py
+++ b/kpi_dashboard/__manifest__.py
@@ -5,11 +5,11 @@
     "name": "Kpi Dashboard",
     "summary": """
         Create Dashboards using kpis""",
-    "version": "12.0.1.3.0",
+    "version": "13.0.1.0.0",
     "license": "AGPL-3",
     "author": "Creu Blanca,Odoo Community Association (OCA)",
     "website": "https://github.com/OCA/reporting-engine",
-    "depends": ["bus", "board", "base_sparse_field", "web_widget_color"],
+    "depends": ["bus", "board", "base_sparse_field"],
     "qweb": ["static/src/xml/dashboard.xml"],
     "data": [
         "wizards/kpi_dashboard_menu.xml",
diff --git a/kpi_dashboard/models/kpi_kpi.py b/kpi_dashboard/models/kpi_kpi.py
index 11cb5fd9..90d340b4 100644
--- a/kpi_dashboard/models/kpi_kpi.py
+++ b/kpi_dashboard/models/kpi_kpi.py
@@ -134,7 +134,6 @@ class KpiKpi(models.Model):
         self.ensure_one()
         self.cron_id = self.env["ir.cron"].create(self._cron_vals())
 
-    @api.multi
     def write(self, vals):
         if "value" in vals:
             vals["value_last_update"] = fields.Datetime.now()
@@ -165,8 +164,10 @@ class KpiKpi(models.Model):
             )
         results = self._get_code_input_dict()
         savepoint = "kpi_formula_%s" % self.id
+        # pylint: disable=E8103
         self.env.cr.execute("savepoint %s" % savepoint)
         safe_eval(self.code or "", results, mode="exec", nocopy=True)
+        # pylint: disable=E8103
         self.env.cr.execute("rollback to %s" % savepoint)
         return results.get("result", {})
 
diff --git a/kpi_dashboard/security/security.xml b/kpi_dashboard/security/security.xml
old mode 100755
new mode 100644
diff --git a/kpi_dashboard/static/lib/nvd3/d3.v3.js b/kpi_dashboard/static/lib/nvd3/d3.v3.js
new file mode 100644
index 00000000..e4d86643
--- /dev/null
+++ b/kpi_dashboard/static/lib/nvd3/d3.v3.js
@@ -0,0 +1,9503 @@
+!function() {
+  var d3 = {
+    version: "3.5.6"
+  };
+  var d3_arraySlice = [].slice, d3_array = function(list) {
+    return d3_arraySlice.call(list);
+  };
+  var d3_document = this.document;
+  function d3_documentElement(node) {
+    return node && (node.ownerDocument || node.document || node).documentElement;
+  }
+  function d3_window(node) {
+    return node && (node.ownerDocument && node.ownerDocument.defaultView || node.document && node || node.defaultView);
+  }
+  if (d3_document) {
+    try {
+      d3_array(d3_document.documentElement.childNodes)[0].nodeType;
+    } catch (e) {
+      d3_array = function(list) {
+        var i = list.length, array = new Array(i);
+        while (i--) array[i] = list[i];
+        return array;
+      };
+    }
+  }
+  if (!Date.now) Date.now = function() {
+    return +new Date();
+  };
+  if (d3_document) {
+    try {
+      d3_document.createElement("DIV").style.setProperty("opacity", 0, "");
+    } catch (error) {
+      var d3_element_prototype = this.Element.prototype, d3_element_setAttribute = d3_element_prototype.setAttribute, d3_element_setAttributeNS = d3_element_prototype.setAttributeNS, d3_style_prototype = this.CSSStyleDeclaration.prototype, d3_style_setProperty = d3_style_prototype.setProperty;
+      d3_element_prototype.setAttribute = function(name, value) {
+        d3_element_setAttribute.call(this, name, value + "");
+      };
+      d3_element_prototype.setAttributeNS = function(space, local, value) {
+        d3_element_setAttributeNS.call(this, space, local, value + "");
+      };
+      d3_style_prototype.setProperty = function(name, value, priority) {
+        d3_style_setProperty.call(this, name, value + "", priority);
+      };
+    }
+  }
+  d3.ascending = d3_ascending;
+  function d3_ascending(a, b) {
+    return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
+  }
+  d3.descending = function(a, b) {
+    return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
+  };
+  d3.min = function(array, f) {
+    var i = -1, n = array.length, a, b;
+    if (arguments.length === 1) {
+      while (++i < n) if ((b = array[i]) != null && b >= b) {
+        a = b;
+        break;
+      }
+      while (++i < n) if ((b = array[i]) != null && a > b) a = b;
+    } else {
+      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b >= b) {
+        a = b;
+        break;
+      }
+      while (++i < n) if ((b = f.call(array, array[i], i)) != null && a > b) a = b;
+    }
+    return a;
+  };
+  d3.max = function(array, f) {
+    var i = -1, n = array.length, a, b;
+    if (arguments.length === 1) {
+      while (++i < n) if ((b = array[i]) != null && b >= b) {
+        a = b;
+        break;
+      }
+      while (++i < n) if ((b = array[i]) != null && b > a) a = b;
+    } else {
+      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b >= b) {
+        a = b;
+        break;
+      }
+      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b > a) a = b;
+    }
+    return a;
+  };
+  d3.extent = function(array, f) {
+    var i = -1, n = array.length, a, b, c;
+    if (arguments.length === 1) {
+      while (++i < n) if ((b = array[i]) != null && b >= b) {
+        a = c = b;
+        break;
+      }
+      while (++i < n) if ((b = array[i]) != null) {
+        if (a > b) a = b;
+        if (c < b) c = b;
+      }
+    } else {
+      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b >= b) {
+        a = c = b;
+        break;
+      }
+      while (++i < n) if ((b = f.call(array, array[i], i)) != null) {
+        if (a > b) a = b;
+        if (c < b) c = b;
+      }
+    }
+    return [ a, c ];
+  };
+  function d3_number(x) {
+    return x === null ? NaN : +x;
+  }
+  function d3_numeric(x) {
+    return !isNaN(x);
+  }
+  d3.sum = function(array, f) {
+    var s = 0, n = array.length, a, i = -1;
+    if (arguments.length === 1) {
+      while (++i < n) if (d3_numeric(a = +array[i])) s += a;
+    } else {
+      while (++i < n) if (d3_numeric(a = +f.call(array, array[i], i))) s += a;
+    }
+    return s;
+  };
+  d3.mean = function(array, f) {
+    var s = 0, n = array.length, a, i = -1, j = n;
+    if (arguments.length === 1) {
+      while (++i < n) if (d3_numeric(a = d3_number(array[i]))) s += a; else --j;
+    } else {
+      while (++i < n) if (d3_numeric(a = d3_number(f.call(array, array[i], i)))) s += a; else --j;
+    }
+    if (j) return s / j;
+  };
+  d3.quantile = function(values, p) {
+    var H = (values.length - 1) * p + 1, h = Math.floor(H), v = +values[h - 1], e = H - h;
+    return e ? v + e * (values[h] - v) : v;
+  };
+  d3.median = function(array, f) {
+    var numbers = [], n = array.length, a, i = -1;
+    if (arguments.length === 1) {
+      while (++i < n) if (d3_numeric(a = d3_number(array[i]))) numbers.push(a);
+    } else {
+      while (++i < n) if (d3_numeric(a = d3_number(f.call(array, array[i], i)))) numbers.push(a);
+    }
+    if (numbers.length) return d3.quantile(numbers.sort(d3_ascending), .5);
+  };
+  d3.variance = function(array, f) {
+    var n = array.length, m = 0, a, d, s = 0, i = -1, j = 0;
+    if (arguments.length === 1) {
+      while (++i < n) {
+        if (d3_numeric(a = d3_number(array[i]))) {
+          d = a - m;
+          m += d / ++j;
+          s += d * (a - m);
+        }
+      }
+    } else {
+      while (++i < n) {
+        if (d3_numeric(a = d3_number(f.call(array, array[i], i)))) {
+          d = a - m;
+          m += d / ++j;
+          s += d * (a - m);
+        }
+      }
+    }
+    if (j > 1) return s / (j - 1);
+  };
+  d3.deviation = function() {
+    var v = d3.variance.apply(this, arguments);
+    return v ? Math.sqrt(v) : v;
+  };
+  function d3_bisector(compare) {
+    return {
+      left: function(a, x, lo, hi) {
+        if (arguments.length < 3) lo = 0;
+        if (arguments.length < 4) hi = a.length;
+        while (lo < hi) {
+          var mid = lo + hi >>> 1;
+          if (compare(a[mid], x) < 0) lo = mid + 1; else hi = mid;
+        }
+        return lo;
+      },
+      right: function(a, x, lo, hi) {
+        if (arguments.length < 3) lo = 0;
+        if (arguments.length < 4) hi = a.length;
+        while (lo < hi) {
+          var mid = lo + hi >>> 1;
+          if (compare(a[mid], x) > 0) hi = mid; else lo = mid + 1;
+        }
+        return lo;
+      }
+    };
+  }
+  var d3_bisect = d3_bisector(d3_ascending);
+  d3.bisectLeft = d3_bisect.left;
+  d3.bisect = d3.bisectRight = d3_bisect.right;
+  d3.bisector = function(f) {
+    return d3_bisector(f.length === 1 ? function(d, x) {
+      return d3_ascending(f(d), x);
+    } : f);
+  };
+  d3.shuffle = function(array, i0, i1) {
+    if ((m = arguments.length) < 3) {
+      i1 = array.length;
+      if (m < 2) i0 = 0;
+    }
+    var m = i1 - i0, t, i;
+    while (m) {
+      i = Math.random() * m-- | 0;
+      t = array[m + i0], array[m + i0] = array[i + i0], array[i + i0] = t;
+    }
+    return array;
+  };
+  d3.permute = function(array, indexes) {
+    var i = indexes.length, permutes = new Array(i);
+    while (i--) permutes[i] = array[indexes[i]];
+    return permutes;
+  };
+  d3.pairs = function(array) {
+    var i = 0, n = array.length - 1, p0, p1 = array[0], pairs = new Array(n < 0 ? 0 : n);
+    while (i < n) pairs[i] = [ p0 = p1, p1 = array[++i] ];
+    return pairs;
+  };
+  d3.zip = function() {
+    if (!(n = arguments.length)) return [];
+    for (var i = -1, m = d3.min(arguments, d3_zipLength), zips = new Array(m); ++i < m; ) {
+      for (var j = -1, n, zip = zips[i] = new Array(n); ++j < n; ) {
+        zip[j] = arguments[j][i];
+      }
+    }
+    return zips;
+  };
+  function d3_zipLength(d) {
+    return d.length;
+  }
+  d3.transpose = function(matrix) {
+    return d3.zip.apply(d3, matrix);
+  };
+  d3.keys = function(map) {
+    var keys = [];
+    for (var key in map) keys.push(key);
+    return keys;
+  };
+  d3.values = function(map) {
+    var values = [];
+    for (var key in map) values.push(map[key]);
+    return values;
+  };
+  d3.entries = function(map) {
+    var entries = [];
+    for (var key in map) entries.push({
+      key: key,
+      value: map[key]
+    });
+    return entries;
+  };
+  d3.merge = function(arrays) {
+    var n = arrays.length, m, i = -1, j = 0, merged, array;
+    while (++i < n) j += arrays[i].length;
+    merged = new Array(j);
+    while (--n >= 0) {
+      array = arrays[n];
+      m = array.length;
+      while (--m >= 0) {
+        merged[--j] = array[m];
+      }
+    }
+    return merged;
+  };
+  var abs = Math.abs;
+  d3.range = function(start, stop, step) {
+    if (arguments.length < 3) {
+      step = 1;
+      if (arguments.length < 2) {
+        stop = start;
+        start = 0;
+      }
+    }
+    if ((stop - start) / step === Infinity) throw new Error("infinite range");
+    var range = [], k = d3_range_integerScale(abs(step)), i = -1, j;
+    start *= k, stop *= k, step *= k;
+    if (step < 0) while ((j = start + step * ++i) > stop) range.push(j / k); else while ((j = start + step * ++i) < stop) range.push(j / k);
+    return range;
+  };
+  function d3_range_integerScale(x) {
+    var k = 1;
+    while (x * k % 1) k *= 10;
+    return k;
+  }
+  function d3_class(ctor, properties) {
+    for (var key in properties) {
+      Object.defineProperty(ctor.prototype, key, {
+        value: properties[key],
+        enumerable: false
+      });
+    }
+  }
+  d3.map = function(object, f) {
+    var map = new d3_Map();
+    if (object instanceof d3_Map) {
+      object.forEach(function(key, value) {
+        map.set(key, value);
+      });
+    } else if (Array.isArray(object)) {
+      var i = -1, n = object.length, o;
+      if (arguments.length === 1) while (++i < n) map.set(i, object[i]); else while (++i < n) map.set(f.call(object, o = object[i], i), o);
+    } else {
+      for (var key in object) map.set(key, object[key]);
+    }
+    return map;
+  };
+  function d3_Map() {
+    this._ = Object.create(null);
+  }
+  var d3_map_proto = "__proto__", d3_map_zero = "\x00";
+  d3_class(d3_Map, {
+    has: d3_map_has,
+    get: function(key) {
+      return this._[d3_map_escape(key)];
+    },
+    set: function(key, value) {
+      return this._[d3_map_escape(key)] = value;
+    },
+    remove: d3_map_remove,
+    keys: d3_map_keys,
+    values: function() {
+      var values = [];
+      for (var key in this._) values.push(this._[key]);
+      return values;
+    },
+    entries: function() {
+      var entries = [];
+      for (var key in this._) entries.push({
+        key: d3_map_unescape(key),
+        value: this._[key]
+      });
+      return entries;
+    },
+    size: d3_map_size,
+    empty: d3_map_empty,
+    forEach: function(f) {
+      for (var key in this._) f.call(this, d3_map_unescape(key), this._[key]);
+    }
+  });
+  function d3_map_escape(key) {
+    return (key += "") === d3_map_proto || key[0] === d3_map_zero ? d3_map_zero + key : key;
+  }
+  function d3_map_unescape(key) {
+    return (key += "")[0] === d3_map_zero ? key.slice(1) : key;
+  }
+  function d3_map_has(key) {
+    return d3_map_escape(key) in this._;
+  }
+  function d3_map_remove(key) {
+    return (key = d3_map_escape(key)) in this._ && delete this._[key];
+  }
+  function d3_map_keys() {
+    var keys = [];
+    for (var key in this._) keys.push(d3_map_unescape(key));
+    return keys;
+  }
+  function d3_map_size() {
+    var size = 0;
+    for (var key in this._) ++size;
+    return size;
+  }
+  function d3_map_empty() {
+    for (var key in this._) return false;
+    return true;
+  }
+  d3.nest = function() {
+    var nest = {}, keys = [], sortKeys = [], sortValues, rollup;
+    function map(mapType, array, depth) {
+      if (depth >= keys.length) return rollup ? rollup.call(nest, array) : sortValues ? array.sort(sortValues) : array;
+      var i = -1, n = array.length, key = keys[depth++], keyValue, object, setter, valuesByKey = new d3_Map(), values;
+      while (++i < n) {
+        if (values = valuesByKey.get(keyValue = key(object = array[i]))) {
+          values.push(object);
+        } else {
+          valuesByKey.set(keyValue, [ object ]);
+        }
+      }
+      if (mapType) {
+        object = mapType();
+        setter = function(keyValue, values) {
+          object.set(keyValue, map(mapType, values, depth));
+        };
+      } else {
+        object = {};
+        setter = function(keyValue, values) {
+          object[keyValue] = map(mapType, values, depth);
+        };
+      }
+      valuesByKey.forEach(setter);
+      return object;
+    }
+    function entries(map, depth) {
+      if (depth >= keys.length) return map;
+      var array = [], sortKey = sortKeys[depth++];
+      map.forEach(function(key, keyMap) {
+        array.push({
+          key: key,
+          values: entries(keyMap, depth)
+        });
+      });
+      return sortKey ? array.sort(function(a, b) {
+        return sortKey(a.key, b.key);
+      }) : array;
+    }
+    nest.map = function(array, mapType) {
+      return map(mapType, array, 0);
+    };
+    nest.entries = function(array) {
+      return entries(map(d3.map, array, 0), 0);
+    };
+    nest.key = function(d) {
+      keys.push(d);
+      return nest;
+    };
+    nest.sortKeys = function(order) {
+      sortKeys[keys.length - 1] = order;
+      return nest;
+    };
+    nest.sortValues = function(order) {
+      sortValues = order;
+      return nest;
+    };
+    nest.rollup = function(f) {
+      rollup = f;
+      return nest;
+    };
+    return nest;
+  };
+  d3.set = function(array) {
+    var set = new d3_Set();
+    if (array) for (var i = 0, n = array.length; i < n; ++i) set.add(array[i]);
+    return set;
+  };
+  function d3_Set() {
+    this._ = Object.create(null);
+  }
+  d3_class(d3_Set, {
+    has: d3_map_has,
+    add: function(key) {
+      this._[d3_map_escape(key += "")] = true;
+      return key;
+    },
+    remove: d3_map_remove,
+    values: d3_map_keys,
+    size: d3_map_size,
+    empty: d3_map_empty,
+    forEach: function(f) {
+      for (var key in this._) f.call(this, d3_map_unescape(key));
+    }
+  });
+  d3.behavior = {};
+  function d3_identity(d) {
+    return d;
+  }
+  d3.rebind = function(target, source) {
+    var i = 1, n = arguments.length, method;
+    while (++i < n) target[method = arguments[i]] = d3_rebind(target, source, source[method]);
+    return target;
+  };
+  function d3_rebind(target, source, method) {
+    return function() {
+      var value = method.apply(source, arguments);
+      return value === source ? target : value;
+    };
+  }
+  function d3_vendorSymbol(object, name) {
+    if (name in object) return name;
+    name = name.charAt(0).toUpperCase() + name.slice(1);
+    for (var i = 0, n = d3_vendorPrefixes.length; i < n; ++i) {
+      var prefixName = d3_vendorPrefixes[i] + name;
+      if (prefixName in object) return prefixName;
+    }
+  }
+  var d3_vendorPrefixes = [ "webkit", "ms", "moz", "Moz", "o", "O" ];
+  function d3_noop() {}
+  d3.dispatch = function() {
+    var dispatch = new d3_dispatch(), i = -1, n = arguments.length;
+    while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);
+    return dispatch;
+  };
+  function d3_dispatch() {}
+  d3_dispatch.prototype.on = function(type, listener) {
+    var i = type.indexOf("."), name = "";
+    if (i >= 0) {
+      name = type.slice(i + 1);
+      type = type.slice(0, i);
+    }
+    if (type) return arguments.length < 2 ? this[type].on(name) : this[type].on(name, listener);
+    if (arguments.length === 2) {
+      if (listener == null) for (type in this) {
+        if (this.hasOwnProperty(type)) this[type].on(name, null);
+      }
+      return this;
+    }
+  };
+  function d3_dispatch_event(dispatch) {
+    var listeners = [], listenerByName = new d3_Map();
+    function event() {
+      var z = listeners, i = -1, n = z.length, l;
+      while (++i < n) if (l = z[i].on) l.apply(this, arguments);
+      return dispatch;
+    }
+    event.on = function(name, listener) {
+      var l = listenerByName.get(name), i;
+      if (arguments.length < 2) return l && l.on;
+      if (l) {
+        l.on = null;
+        listeners = listeners.slice(0, i = listeners.indexOf(l)).concat(listeners.slice(i + 1));
+        listenerByName.remove(name);
+      }
+      if (listener) listeners.push(listenerByName.set(name, {
+        on: listener
+      }));
+      return dispatch;
+    };
+    return event;
+  }
+  d3.event = null;
+  function d3_eventPreventDefault() {
+    d3.event.preventDefault();
+  }
+  function d3_eventSource() {
+    var e = d3.event, s;
+    while (s = e.sourceEvent) e = s;
+    return e;
+  }
+  function d3_eventDispatch(target) {
+    var dispatch = new d3_dispatch(), i = 0, n = arguments.length;
+    while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);
+    dispatch.of = function(thiz, argumentz) {
+      return function(e1) {
+        try {
+          var e0 = e1.sourceEvent = d3.event;
+          e1.target = target;
+          d3.event = e1;
+          dispatch[e1.type].apply(thiz, argumentz);
+        } finally {
+          d3.event = e0;
+        }
+      };
+    };
+    return dispatch;
+  }
+  d3.requote = function(s) {
+    return s.replace(d3_requote_re, "\\$&");
+  };
+  var d3_requote_re = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g;
+  var d3_subclass = {}.__proto__ ? function(object, prototype) {
+    object.__proto__ = prototype;
+  } : function(object, prototype) {
+    for (var property in prototype) object[property] = prototype[property];
+  };
+  function d3_selection(groups) {
+    d3_subclass(groups, d3_selectionPrototype);
+    return groups;
+  }
+  var d3_select = function(s, n) {
+    return n.querySelector(s);
+  }, d3_selectAll = function(s, n) {
+    return n.querySelectorAll(s);
+  }, d3_selectMatches = function(n, s) {
+    var d3_selectMatcher = n.matches || n[d3_vendorSymbol(n, "matchesSelector")];
+    d3_selectMatches = function(n, s) {
+      return d3_selectMatcher.call(n, s);
+    };
+    return d3_selectMatches(n, s);
+  };
+  if (typeof Sizzle === "function") {
+    d3_select = function(s, n) {
+      return Sizzle(s, n)[0] || null;
+    };
+    d3_selectAll = Sizzle;
+    d3_selectMatches = Sizzle.matchesSelector;
+  }
+  d3.selection = function() {
+    return d3.select(d3_document.documentElement);
+  };
+  var d3_selectionPrototype = d3.selection.prototype = [];
+  d3_selectionPrototype.select = function(selector) {
+    var subgroups = [], subgroup, subnode, group, node;
+    selector = d3_selection_selector(selector);
+    for (var j = -1, m = this.length; ++j < m; ) {
+      subgroups.push(subgroup = []);
+      subgroup.parentNode = (group = this[j]).parentNode;
+      for (var i = -1, n = group.length; ++i < n; ) {
+        if (node = group[i]) {
+          subgroup.push(subnode = selector.call(node, node.__data__, i, j));
+          if (subnode && "__data__" in node) subnode.__data__ = node.__data__;
+        } else {
+          subgroup.push(null);
+        }
+      }
+    }
+    return d3_selection(subgroups);
+  };
+  function d3_selection_selector(selector) {
+    return typeof selector === "function" ? selector : function() {
+      return d3_select(selector, this);
+    };
+  }
+  d3_selectionPrototype.selectAll = function(selector) {
+    var subgroups = [], subgroup, node;
+    selector = d3_selection_selectorAll(selector);
+    for (var j = -1, m = this.length; ++j < m; ) {
+      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
+        if (node = group[i]) {
+          subgroups.push(subgroup = d3_array(selector.call(node, node.__data__, i, j)));
+          subgroup.parentNode = node;
+        }
+      }
+    }
+    return d3_selection(subgroups);
+  };
+  function d3_selection_selectorAll(selector) {
+    return typeof selector === "function" ? selector : function() {
+      return d3_selectAll(selector, this);
+    };
+  }
+  var d3_nsPrefix = {
+    svg: "http://www.w3.org/2000/svg",
+    xhtml: "http://www.w3.org/1999/xhtml",
+    xlink: "http://www.w3.org/1999/xlink",
+    xml: "http://www.w3.org/XML/1998/namespace",
+    xmlns: "http://www.w3.org/2000/xmlns/"
+  };
+  d3.ns = {
+    prefix: d3_nsPrefix,
+    qualify: function(name) {
+      var i = name.indexOf(":"), prefix = name;
+      if (i >= 0) {
+        prefix = name.slice(0, i);
+        name = name.slice(i + 1);
+      }
+      return d3_nsPrefix.hasOwnProperty(prefix) ? {
+        space: d3_nsPrefix[prefix],
+        local: name
+      } : name;
+    }
+  };
+  d3_selectionPrototype.attr = function(name, value) {
+    if (arguments.length < 2) {
+      if (typeof name === "string") {
+        var node = this.node();
+        name = d3.ns.qualify(name);
+        return name.local ? node.getAttributeNS(name.space, name.local) : node.getAttribute(name);
+      }
+      for (value in name) this.each(d3_selection_attr(value, name[value]));
+      return this;
+    }
+    return this.each(d3_selection_attr(name, value));
+  };
+  function d3_selection_attr(name, value) {
+    name = d3.ns.qualify(name);
+    function attrNull() {
+      this.removeAttribute(name);
+    }
+    function attrNullNS() {
+      this.removeAttributeNS(name.space, name.local);
+    }
+    function attrConstant() {
+      this.setAttribute(name, value);
+    }
+    function attrConstantNS() {
+      this.setAttributeNS(name.space, name.local, value);
+    }
+    function attrFunction() {
+      var x = value.apply(this, arguments);
+      if (x == null) this.removeAttribute(name); else this.setAttribute(name, x);
+    }
+    function attrFunctionNS() {
+      var x = value.apply(this, arguments);
+      if (x == null) this.removeAttributeNS(name.space, name.local); else this.setAttributeNS(name.space, name.local, x);
+    }
+    return value == null ? name.local ? attrNullNS : attrNull : typeof value === "function" ? name.local ? attrFunctionNS : attrFunction : name.local ? attrConstantNS : attrConstant;
+  }
+  function d3_collapse(s) {
+    return s.trim().replace(/\s+/g, " ");
+  }
+  d3_selectionPrototype.classed = function(name, value) {
+    if (arguments.length < 2) {
+      if (typeof name === "string") {
+        var node = this.node(), n = (name = d3_selection_classes(name)).length, i = -1;
+        if (value = node.classList) {
+          while (++i < n) if (!value.contains(name[i])) return false;
+        } else {
+          value = node.getAttribute("class");
+          while (++i < n) if (!d3_selection_classedRe(name[i]).test(value)) return false;
+        }
+        return true;
+      }
+      for (value in name) this.each(d3_selection_classed(value, name[value]));
+      return this;
+    }
+    return this.each(d3_selection_classed(name, value));
+  };
+  function d3_selection_classedRe(name) {
+    return new RegExp("(?:^|\\s+)" + d3.requote(name) + "(?:\\s+|$)", "g");
+  }
+  function d3_selection_classes(name) {
+    return (name + "").trim().split(/^|\s+/);
+  }
+  function d3_selection_classed(name, value) {
+    name = d3_selection_classes(name).map(d3_selection_classedName);
+    var n = name.length;
+    function classedConstant() {
+      var i = -1;
+      while (++i < n) name[i](this, value);
+    }
+    function classedFunction() {
+      var i = -1, x = value.apply(this, arguments);
+      while (++i < n) name[i](this, x);
+    }
+    return typeof value === "function" ? classedFunction : classedConstant;
+  }
+  function d3_selection_classedName(name) {
+    var re = d3_selection_classedRe(name);
+    return function(node, value) {
+      if (c = node.classList) return value ? c.add(name) : c.remove(name);
+      var c = node.getAttribute("class") || "";
+      if (value) {
+        re.lastIndex = 0;
+        if (!re.test(c)) node.setAttribute("class", d3_collapse(c + " " + name));
+      } else {
+        node.setAttribute("class", d3_collapse(c.replace(re, " ")));
+      }
+    };
+  }
+  d3_selectionPrototype.style = function(name, value, priority) {
+    var n = arguments.length;
+    if (n < 3) {
+      if (typeof name !== "string") {
+        if (n < 2) value = "";
+        for (priority in name) this.each(d3_selection_style(priority, name[priority], value));
+        return this;
+      }
+      if (n < 2) {
+        var node = this.node();
+        return d3_window(node).getComputedStyle(node, null).getPropertyValue(name);
+      }
+      priority = "";
+    }
+    return this.each(d3_selection_style(name, value, priority));
+  };
+  function d3_selection_style(name, value, priority) {
+    function styleNull() {
+      this.style.removeProperty(name);
+    }
+    function styleConstant() {
+      this.style.setProperty(name, value, priority);
+    }
+    function styleFunction() {
+      var x = value.apply(this, arguments);
+      if (x == null) this.style.removeProperty(name); else this.style.setProperty(name, x, priority);
+    }
+    return value == null ? styleNull : typeof value === "function" ? styleFunction : styleConstant;
+  }
+  d3_selectionPrototype.property = function(name, value) {
+    if (arguments.length < 2) {
+      if (typeof name === "string") return this.node()[name];
+      for (value in name) this.each(d3_selection_property(value, name[value]));
+      return this;
+    }
+    return this.each(d3_selection_property(name, value));
+  };
+  function d3_selection_property(name, value) {
+    function propertyNull() {
+      delete this[name];
+    }
+    function propertyConstant() {
+      this[name] = value;
+    }
+    function propertyFunction() {
+      var x = value.apply(this, arguments);
+      if (x == null) delete this[name]; else this[name] = x;
+    }
+    return value == null ? propertyNull : typeof value === "function" ? propertyFunction : propertyConstant;
+  }
+  d3_selectionPrototype.text = function(value) {
+    return arguments.length ? this.each(typeof value === "function" ? function() {
+      var v = value.apply(this, arguments);
+      this.textContent = v == null ? "" : v;
+    } : value == null ? function() {
+      this.textContent = "";
+    } : function() {
+      this.textContent = value;
+    }) : this.node().textContent;
+  };
+  d3_selectionPrototype.html = function(value) {
+    return arguments.length ? this.each(typeof value === "function" ? function() {
+      var v = value.apply(this, arguments);
+      this.innerHTML = v == null ? "" : v;
+    } : value == null ? function() {
+      this.innerHTML = "";
+    } : function() {
+      this.innerHTML = value;
+    }) : this.node().innerHTML;
+  };
+  d3_selectionPrototype.append = function(name) {
+    name = d3_selection_creator(name);
+    return this.select(function() {
+      return this.appendChild(name.apply(this, arguments));
+    });
+  };
+  function d3_selection_creator(name) {
+    function create() {
+      var document = this.ownerDocument, namespace = this.namespaceURI;
+      return namespace ? document.createElementNS(namespace, name) : document.createElement(name);
+    }
+    function createNS() {
+      return this.ownerDocument.createElementNS(name.space, name.local);
+    }
+    return typeof name === "function" ? name : (name = d3.ns.qualify(name)).local ? createNS : create;
+  }
+  d3_selectionPrototype.insert = function(name, before) {
+    name = d3_selection_creator(name);
+    before = d3_selection_selector(before);
+    return this.select(function() {
+      return this.insertBefore(name.apply(this, arguments), before.apply(this, arguments) || null);
+    });
+  };
+  d3_selectionPrototype.remove = function() {
+    return this.each(d3_selectionRemove);
+  };
+  function d3_selectionRemove() {
+    var parent = this.parentNode;
+    if (parent) parent.removeChild(this);
+  }
+  d3_selectionPrototype.data = function(value, key) {
+    var i = -1, n = this.length, group, node;
+    if (!arguments.length) {
+      value = new Array(n = (group = this[0]).length);
+      while (++i < n) {
+        if (node = group[i]) {
+          value[i] = node.__data__;
+        }
+      }
+      return value;
+    }
+    function bind(group, groupData) {
+      var i, n = group.length, m = groupData.length, n0 = Math.min(n, m), updateNodes = new Array(m), enterNodes = new Array(m), exitNodes = new Array(n), node, nodeData;
+      if (key) {
+        var nodeByKeyValue = new d3_Map(), keyValues = new Array(n), keyValue;
+        for (i = -1; ++i < n; ) {
+          if (nodeByKeyValue.has(keyValue = key.call(node = group[i], node.__data__, i))) {
+            exitNodes[i] = node;
+          } else {
+            nodeByKeyValue.set(keyValue, node);
+          }
+          keyValues[i] = keyValue;
+        }
+        for (i = -1; ++i < m; ) {
+          if (!(node = nodeByKeyValue.get(keyValue = key.call(groupData, nodeData = groupData[i], i)))) {
+            enterNodes[i] = d3_selection_dataNode(nodeData);
+          } else if (node !== true) {
+            updateNodes[i] = node;
+            node.__data__ = nodeData;
+          }
+          nodeByKeyValue.set(keyValue, true);
+        }
+        for (i = -1; ++i < n; ) {
+          if (nodeByKeyValue.get(keyValues[i]) !== true) {
+            exitNodes[i] = group[i];
+          }
+        }
+      } else {
+        for (i = -1; ++i < n0; ) {
+          node = group[i];
+          nodeData = groupData[i];
+          if (node) {
+            node.__data__ = nodeData;
+            updateNodes[i] = node;
+          } else {
+            enterNodes[i] = d3_selection_dataNode(nodeData);
+          }
+        }
+        for (;i < m; ++i) {
+          enterNodes[i] = d3_selection_dataNode(groupData[i]);
+        }
+        for (;i < n; ++i) {
+          exitNodes[i] = group[i];
+        }
+      }
+      enterNodes.update = updateNodes;
+      enterNodes.parentNode = updateNodes.parentNode = exitNodes.parentNode = group.parentNode;
+      enter.push(enterNodes);
+      update.push(updateNodes);
+      exit.push(exitNodes);
+    }
+    var enter = d3_selection_enter([]), update = d3_selection([]), exit = d3_selection([]);
+    if (typeof value === "function") {
+      while (++i < n) {
+        bind(group = this[i], value.call(group, group.parentNode.__data__, i));
+      }
+    } else {
+      while (++i < n) {
+        bind(group = this[i], value);
+      }
+    }
+    update.enter = function() {
+      return enter;
+    };
+    update.exit = function() {
+      return exit;
+    };
+    return update;
+  };
+  function d3_selection_dataNode(data) {
+    return {
+      __data__: data
+    };
+  }
+  d3_selectionPrototype.datum = function(value) {
+    return arguments.length ? this.property("__data__", value) : this.property("__data__");
+  };
+  d3_selectionPrototype.filter = function(filter) {
+    var subgroups = [], subgroup, group, node;
+    if (typeof filter !== "function") filter = d3_selection_filter(filter);
+    for (var j = 0, m = this.length; j < m; j++) {
+      subgroups.push(subgroup = []);
+      subgroup.parentNode = (group = this[j]).parentNode;
+      for (var i = 0, n = group.length; i < n; i++) {
+        if ((node = group[i]) && filter.call(node, node.__data__, i, j)) {
+          subgroup.push(node);
+        }
+      }
+    }
+    return d3_selection(subgroups);
+  };
+  function d3_selection_filter(selector) {
+    return function() {
+      return d3_selectMatches(this, selector);
+    };
+  }
+  d3_selectionPrototype.order = function() {
+    for (var j = -1, m = this.length; ++j < m; ) {
+      for (var group = this[j], i = group.length - 1, next = group[i], node; --i >= 0; ) {
+        if (node = group[i]) {
+          if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next);
+          next = node;
+        }
+      }
+    }
+    return this;
+  };
+  d3_selectionPrototype.sort = function(comparator) {
+    comparator = d3_selection_sortComparator.apply(this, arguments);
+    for (var j = -1, m = this.length; ++j < m; ) this[j].sort(comparator);
+    return this.order();
+  };
+  function d3_selection_sortComparator(comparator) {
+    if (!arguments.length) comparator = d3_ascending;
+    return function(a, b) {
+      return a && b ? comparator(a.__data__, b.__data__) : !a - !b;
+    };
+  }
+  d3_selectionPrototype.each = function(callback) {
+    return d3_selection_each(this, function(node, i, j) {
+      callback.call(node, node.__data__, i, j);
+    });
+  };
+  function d3_selection_each(groups, callback) {
+    for (var j = 0, m = groups.length; j < m; j++) {
+      for (var group = groups[j], i = 0, n = group.length, node; i < n; i++) {
+        if (node = group[i]) callback(node, i, j);
+      }
+    }
+    return groups;
+  }
+  d3_selectionPrototype.call = function(callback) {
+    var args = d3_array(arguments);
+    callback.apply(args[0] = this, args);
+    return this;
+  };
+  d3_selectionPrototype.empty = function() {
+    return !this.node();
+  };
+  d3_selectionPrototype.node = function() {
+    for (var j = 0, m = this.length; j < m; j++) {
+      for (var group = this[j], i = 0, n = group.length; i < n; i++) {
+        var node = group[i];
+        if (node) return node;
+      }
+    }
+    return null;
+  };
+  d3_selectionPrototype.size = function() {
+    var n = 0;
+    d3_selection_each(this, function() {
+      ++n;
+    });
+    return n;
+  };
+  function d3_selection_enter(selection) {
+    d3_subclass(selection, d3_selection_enterPrototype);
+    return selection;
+  }
+  var d3_selection_enterPrototype = [];
+  d3.selection.enter = d3_selection_enter;
+  d3.selection.enter.prototype = d3_selection_enterPrototype;
+  d3_selection_enterPrototype.append = d3_selectionPrototype.append;
+  d3_selection_enterPrototype.empty = d3_selectionPrototype.empty;
+  d3_selection_enterPrototype.node = d3_selectionPrototype.node;
+  d3_selection_enterPrototype.call = d3_selectionPrototype.call;
+  d3_selection_enterPrototype.size = d3_selectionPrototype.size;
+  d3_selection_enterPrototype.select = function(selector) {
+    var subgroups = [], subgroup, subnode, upgroup, group, node;
+    for (var j = -1, m = this.length; ++j < m; ) {
+      upgroup = (group = this[j]).update;
+      subgroups.push(subgroup = []);
+      subgroup.parentNode = group.parentNode;
+      for (var i = -1, n = group.length; ++i < n; ) {
+        if (node = group[i]) {
+          subgroup.push(upgroup[i] = subnode = selector.call(group.parentNode, node.__data__, i, j));
+          subnode.__data__ = node.__data__;
+        } else {
+          subgroup.push(null);
+        }
+      }
+    }
+    return d3_selection(subgroups);
+  };
+  d3_selection_enterPrototype.insert = function(name, before) {
+    if (arguments.length < 2) before = d3_selection_enterInsertBefore(this);
+    return d3_selectionPrototype.insert.call(this, name, before);
+  };
+  function d3_selection_enterInsertBefore(enter) {
+    var i0, j0;
+    return function(d, i, j) {
+      var group = enter[j].update, n = group.length, node;
+      if (j != j0) j0 = j, i0 = 0;
+      if (i >= i0) i0 = i + 1;
+      while (!(node = group[i0]) && ++i0 < n) ;
+      return node;
+    };
+  }
+  d3.select = function(node) {
+    var group;
+    if (typeof node === "string") {
+      group = [ d3_select(node, d3_document) ];
+      group.parentNode = d3_document.documentElement;
+    } else {
+      group = [ node ];
+      group.parentNode = d3_documentElement(node);
+    }
+    return d3_selection([ group ]);
+  };
+  d3.selectAll = function(nodes) {
+    var group;
+    if (typeof nodes === "string") {
+      group = d3_array(d3_selectAll(nodes, d3_document));
+      group.parentNode = d3_document.documentElement;
+    } else {
+      group = nodes;
+      group.parentNode = null;
+    }
+    return d3_selection([ group ]);
+  };
+  d3_selectionPrototype.on = function(type, listener, capture) {
+    var n = arguments.length;
+    if (n < 3) {
+      if (typeof type !== "string") {
+        if (n < 2) listener = false;
+        for (capture in type) this.each(d3_selection_on(capture, type[capture], listener));
+        return this;
+      }
+      if (n < 2) return (n = this.node()["__on" + type]) && n._;
+      capture = false;
+    }
+    return this.each(d3_selection_on(type, listener, capture));
+  };
+  function d3_selection_on(type, listener, capture) {
+    var name = "__on" + type, i = type.indexOf("."), wrap = d3_selection_onListener;
+    if (i > 0) type = type.slice(0, i);
+    var filter = d3_selection_onFilters.get(type);
+    if (filter) type = filter, wrap = d3_selection_onFilter;
+    function onRemove() {
+      var l = this[name];
+      if (l) {
+        this.removeEventListener(type, l, l.$);
+        delete this[name];
+      }
+    }
+    function onAdd() {
+      var l = wrap(listener, d3_array(arguments));
+      onRemove.call(this);
+      this.addEventListener(type, this[name] = l, l.$ = capture);
+      l._ = listener;
+    }
+    function removeAll() {
+      var re = new RegExp("^__on([^.]+)" + d3.requote(type) + "$"), match;
+      for (var name in this) {
+        if (match = name.match(re)) {
+          var l = this[name];
+          this.removeEventListener(match[1], l, l.$);
+          delete this[name];
+        }
+      }
+    }
+    return i ? listener ? onAdd : onRemove : listener ? d3_noop : removeAll;
+  }
+  var d3_selection_onFilters = d3.map({
+    mouseenter: "mouseover",
+    mouseleave: "mouseout"
+  });
+  if (d3_document) {
+    d3_selection_onFilters.forEach(function(k) {
+      if ("on" + k in d3_document) d3_selection_onFilters.remove(k);
+    });
+  }
+  function d3_selection_onListener(listener, argumentz) {
+    return function(e) {
+      var o = d3.event;
+      d3.event = e;
+      argumentz[0] = this.__data__;
+      try {
+        listener.apply(this, argumentz);
+      } finally {
+        d3.event = o;
+      }
+    };
+  }
+  function d3_selection_onFilter(listener, argumentz) {
+    var l = d3_selection_onListener(listener, argumentz);
+    return function(e) {
+      var target = this, related = e.relatedTarget;
+      if (!related || related !== target && !(related.compareDocumentPosition(target) & 8)) {
+        l.call(target, e);
+      }
+    };
+  }
+  var d3_event_dragSelect, d3_event_dragId = 0;
+  function d3_event_dragSuppress(node) {
+    var name = ".dragsuppress-" + ++d3_event_dragId, click = "click" + name, w = d3.select(d3_window(node)).on("touchmove" + name, d3_eventPreventDefault).on("dragstart" + name, d3_eventPreventDefault).on("selectstart" + name, d3_eventPreventDefault);
+    if (d3_event_dragSelect == null) {
+      d3_event_dragSelect = "onselectstart" in node ? false : d3_vendorSymbol(node.style, "userSelect");
+    }
+    if (d3_event_dragSelect) {
+      var style = d3_documentElement(node).style, select = style[d3_event_dragSelect];
+      style[d3_event_dragSelect] = "none";
+    }
+    return function(suppressClick) {
+      w.on(name, null);
+      if (d3_event_dragSelect) style[d3_event_dragSelect] = select;
+      if (suppressClick) {
+        var off = function() {
+          w.on(click, null);
+        };
+        w.on(click, function() {
+          d3_eventPreventDefault();
+          off();
+        }, true);
+        setTimeout(off, 0);
+      }
+    };
+  }
+  d3.mouse = function(container) {
+    return d3_mousePoint(container, d3_eventSource());
+  };
+  var d3_mouse_bug44083 = this.navigator && /WebKit/.test(this.navigator.userAgent) ? -1 : 0;
+  function d3_mousePoint(container, e) {
+    if (e.changedTouches) e = e.changedTouches[0];
+    var svg = container.ownerSVGElement || container;
+    if (svg.createSVGPoint) {
+      var point = svg.createSVGPoint();
+      if (d3_mouse_bug44083 < 0) {
+        var window = d3_window(container);
+        if (window.scrollX || window.scrollY) {
+          svg = d3.select("body").append("svg").style({
+            position: "absolute",
+            top: 0,
+            left: 0,
+            margin: 0,
+            padding: 0,
+            border: "none"
+          }, "important");
+          var ctm = svg[0][0].getScreenCTM();
+          d3_mouse_bug44083 = !(ctm.f || ctm.e);
+          svg.remove();
+        }
+      }
+      if (d3_mouse_bug44083) point.x = e.pageX, point.y = e.pageY; else point.x = e.clientX, 
+      point.y = e.clientY;
+      point = point.matrixTransform(container.getScreenCTM().inverse());
+      return [ point.x, point.y ];
+    }
+    var rect = container.getBoundingClientRect();
+    return [ e.clientX - rect.left - container.clientLeft, e.clientY - rect.top - container.clientTop ];
+  }
+  d3.touch = function(container, touches, identifier) {
+    if (arguments.length < 3) identifier = touches, touches = d3_eventSource().changedTouches;
+    if (touches) for (var i = 0, n = touches.length, touch; i < n; ++i) {
+      if ((touch = touches[i]).identifier === identifier) {
+        return d3_mousePoint(container, touch);
+      }
+    }
+  };
+  d3.behavior.drag = function() {
+    var event = d3_eventDispatch(drag, "drag", "dragstart", "dragend"), origin = null, mousedown = dragstart(d3_noop, d3.mouse, d3_window, "mousemove", "mouseup"), touchstart = dragstart(d3_behavior_dragTouchId, d3.touch, d3_identity, "touchmove", "touchend");
+    function drag() {
+      this.on("mousedown.drag", mousedown).on("touchstart.drag", touchstart);
+    }
+    function dragstart(id, position, subject, move, end) {
+      return function() {
+        var that = this, target = d3.event.target, parent = that.parentNode, dispatch = event.of(that, arguments), dragged = 0, dragId = id(), dragName = ".drag" + (dragId == null ? "" : "-" + dragId), dragOffset, dragSubject = d3.select(subject(target)).on(move + dragName, moved).on(end + dragName, ended), dragRestore = d3_event_dragSuppress(target), position0 = position(parent, dragId);
+        if (origin) {
+          dragOffset = origin.apply(that, arguments);
+          dragOffset = [ dragOffset.x - position0[0], dragOffset.y - position0[1] ];
+        } else {
+          dragOffset = [ 0, 0 ];
+        }
+        dispatch({
+          type: "dragstart"
+        });
+        function moved() {
+          var position1 = position(parent, dragId), dx, dy;
+          if (!position1) return;
+          dx = position1[0] - position0[0];
+          dy = position1[1] - position0[1];
+          dragged |= dx | dy;
+          position0 = position1;
+          dispatch({
+            type: "drag",
+            x: position1[0] + dragOffset[0],
+            y: position1[1] + dragOffset[1],
+            dx: dx,
+            dy: dy
+          });
+        }
+        function ended() {
+          if (!position(parent, dragId)) return;
+          dragSubject.on(move + dragName, null).on(end + dragName, null);
+          dragRestore(dragged && d3.event.target === target);
+          dispatch({
+            type: "dragend"
+          });
+        }
+      };
+    }
+    drag.origin = function(x) {
+      if (!arguments.length) return origin;
+      origin = x;
+      return drag;
+    };
+    return d3.rebind(drag, event, "on");
+  };
+  function d3_behavior_dragTouchId() {
+    return d3.event.changedTouches[0].identifier;
+  }
+  d3.touches = function(container, touches) {
+    if (arguments.length < 2) touches = d3_eventSource().touches;
+    return touches ? d3_array(touches).map(function(touch) {
+      var point = d3_mousePoint(container, touch);
+      point.identifier = touch.identifier;
+      return point;
+    }) : [];
+  };
+  var ε = 1e-6, ε2 = ε * ε, π = Math.PI, τ = 2 * π, τε = τ - ε, halfπ = π / 2, d3_radians = π / 180, d3_degrees = 180 / π;
+  function d3_sgn(x) {
+    return x > 0 ? 1 : x < 0 ? -1 : 0;
+  }
+  function d3_cross2d(a, b, c) {
+    return (b[0] - a[0]) * (c[1] - a[1]) - (b[1] - a[1]) * (c[0] - a[0]);
+  }
+  function d3_acos(x) {
+    return x > 1 ? 0 : x < -1 ? π : Math.acos(x);
+  }
+  function d3_asin(x) {
+    return x > 1 ? halfπ : x < -1 ? -halfπ : Math.asin(x);
+  }
+  function d3_sinh(x) {
+    return ((x = Math.exp(x)) - 1 / x) / 2;
+  }
+  function d3_cosh(x) {
+    return ((x = Math.exp(x)) + 1 / x) / 2;
+  }
+  function d3_tanh(x) {
+    return ((x = Math.exp(2 * x)) - 1) / (x + 1);
+  }
+  function d3_haversin(x) {
+    return (x = Math.sin(x / 2)) * x;
+  }
+  var ρ = Math.SQRT2, ρ2 = 2, ρ4 = 4;
+  d3.interpolateZoom = function(p0, p1) {
+    var ux0 = p0[0], uy0 = p0[1], w0 = p0[2], ux1 = p1[0], uy1 = p1[1], w1 = p1[2];
+    var dx = ux1 - ux0, dy = uy1 - uy0, d2 = dx * dx + dy * dy, d1 = Math.sqrt(d2), b0 = (w1 * w1 - w0 * w0 + ρ4 * d2) / (2 * w0 * ρ2 * d1), b1 = (w1 * w1 - w0 * w0 - ρ4 * d2) / (2 * w1 * ρ2 * d1), r0 = Math.log(Math.sqrt(b0 * b0 + 1) - b0), r1 = Math.log(Math.sqrt(b1 * b1 + 1) - b1), dr = r1 - r0, S = (dr || Math.log(w1 / w0)) / ρ;
+    function interpolate(t) {
+      var s = t * S;
+      if (dr) {
+        var coshr0 = d3_cosh(r0), u = w0 / (ρ2 * d1) * (coshr0 * d3_tanh(ρ * s + r0) - d3_sinh(r0));
+        return [ ux0 + u * dx, uy0 + u * dy, w0 * coshr0 / d3_cosh(ρ * s + r0) ];
+      }
+      return [ ux0 + t * dx, uy0 + t * dy, w0 * Math.exp(ρ * s) ];
+    }
+    interpolate.duration = S * 1e3;
+    return interpolate;
+  };
+  d3.behavior.zoom = function() {
+    var view = {
+      x: 0,
+      y: 0,
+      k: 1
+    }, translate0, center0, center, size = [ 960, 500 ], scaleExtent = d3_behavior_zoomInfinity, duration = 250, zooming = 0, mousedown = "mousedown.zoom", mousemove = "mousemove.zoom", mouseup = "mouseup.zoom", mousewheelTimer, touchstart = "touchstart.zoom", touchtime, event = d3_eventDispatch(zoom, "zoomstart", "zoom", "zoomend"), x0, x1, y0, y1;
+    if (!d3_behavior_zoomWheel) {
+      d3_behavior_zoomWheel = "onwheel" in d3_document ? (d3_behavior_zoomDelta = function() {
+        return -d3.event.deltaY * (d3.event.deltaMode ? 120 : 1);
+      }, "wheel") : "onmousewheel" in d3_document ? (d3_behavior_zoomDelta = function() {
+        return d3.event.wheelDelta;
+      }, "mousewheel") : (d3_behavior_zoomDelta = function() {
+        return -d3.event.detail;
+      }, "MozMousePixelScroll");
+    }
+    function zoom(g) {
+      g.on(mousedown, mousedowned).on(d3_behavior_zoomWheel + ".zoom", mousewheeled).on("dblclick.zoom", dblclicked).on(touchstart, touchstarted);
+    }
+    zoom.event = function(g) {
+      g.each(function() {
+        var dispatch = event.of(this, arguments), view1 = view;
+        if (d3_transitionInheritId) {
+          d3.select(this).transition().each("start.zoom", function() {
+            view = this.__chart__ || {
+              x: 0,
+              y: 0,
+              k: 1
+            };
+            zoomstarted(dispatch);
+          }).tween("zoom:zoom", function() {
+            var dx = size[0], dy = size[1], cx = center0 ? center0[0] : dx / 2, cy = center0 ? center0[1] : dy / 2, i = d3.interpolateZoom([ (cx - view.x) / view.k, (cy - view.y) / view.k, dx / view.k ], [ (cx - view1.x) / view1.k, (cy - view1.y) / view1.k, dx / view1.k ]);
+            return function(t) {
+              var l = i(t), k = dx / l[2];
+              this.__chart__ = view = {
+                x: cx - l[0] * k,
+                y: cy - l[1] * k,
+                k: k
+              };
+              zoomed(dispatch);
+            };
+          }).each("interrupt.zoom", function() {
+            zoomended(dispatch);
+          }).each("end.zoom", function() {
+            zoomended(dispatch);
+          });
+        } else {
+          this.__chart__ = view;
+          zoomstarted(dispatch);
+          zoomed(dispatch);
+          zoomended(dispatch);
+        }
+      });
+    };
+    zoom.translate = function(_) {
+      if (!arguments.length) return [ view.x, view.y ];
+      view = {
+        x: +_[0],
+        y: +_[1],
+        k: view.k
+      };
+      rescale();
+      return zoom;
+    };
+    zoom.scale = function(_) {
+      if (!arguments.length) return view.k;
+      view = {
+        x: view.x,
+        y: view.y,
+        k: +_
+      };
+      rescale();
+      return zoom;
+    };
+    zoom.scaleExtent = function(_) {
+      if (!arguments.length) return scaleExtent;
+      scaleExtent = _ == null ? d3_behavior_zoomInfinity : [ +_[0], +_[1] ];
+      return zoom;
+    };
+    zoom.center = function(_) {
+      if (!arguments.length) return center;
+      center = _ && [ +_[0], +_[1] ];
+      return zoom;
+    };
+    zoom.size = function(_) {
+      if (!arguments.length) return size;
+      size = _ && [ +_[0], +_[1] ];
+      return zoom;
+    };
+    zoom.duration = function(_) {
+      if (!arguments.length) return duration;
+      duration = +_;
+      return zoom;
+    };
+    zoom.x = function(z) {
+      if (!arguments.length) return x1;
+      x1 = z;
+      x0 = z.copy();
+      view = {
+        x: 0,
+        y: 0,
+        k: 1
+      };
+      return zoom;
+    };
+    zoom.y = function(z) {
+      if (!arguments.length) return y1;
+      y1 = z;
+      y0 = z.copy();
+      view = {
+        x: 0,
+        y: 0,
+        k: 1
+      };
+      return zoom;
+    };
+    function location(p) {
+      return [ (p[0] - view.x) / view.k, (p[1] - view.y) / view.k ];
+    }
+    function point(l) {
+      return [ l[0] * view.k + view.x, l[1] * view.k + view.y ];
+    }
+    function scaleTo(s) {
+      view.k = Math.max(scaleExtent[0], Math.min(scaleExtent[1], s));
+    }
+    function translateTo(p, l) {
+      l = point(l);
+      view.x += p[0] - l[0];
+      view.y += p[1] - l[1];
+    }
+    function zoomTo(that, p, l, k) {
+      that.__chart__ = {
+        x: view.x,
+        y: view.y,
+        k: view.k
+      };
+      scaleTo(Math.pow(2, k));
+      translateTo(center0 = p, l);
+      that = d3.select(that);
+      if (duration > 0) that = that.transition().duration(duration);
+      that.call(zoom.event);
+    }
+    function rescale() {
+      if (x1) x1.domain(x0.range().map(function(x) {
+        return (x - view.x) / view.k;
+      }).map(x0.invert));
+      if (y1) y1.domain(y0.range().map(function(y) {
+        return (y - view.y) / view.k;
+      }).map(y0.invert));
+    }
+    function zoomstarted(dispatch) {
+      if (!zooming++) dispatch({
+        type: "zoomstart"
+      });
+    }
+    function zoomed(dispatch) {
+      rescale();
+      dispatch({
+        type: "zoom",
+        scale: view.k,
+        translate: [ view.x, view.y ]
+      });
+    }
+    function zoomended(dispatch) {
+      if (!--zooming) dispatch({
+        type: "zoomend"
+      }), center0 = null;
+    }
+    function mousedowned() {
+      var that = this, target = d3.event.target, dispatch = event.of(that, arguments), dragged = 0, subject = d3.select(d3_window(that)).on(mousemove, moved).on(mouseup, ended), location0 = location(d3.mouse(that)), dragRestore = d3_event_dragSuppress(that);
+      d3_selection_interrupt.call(that);
+      zoomstarted(dispatch);
+      function moved() {
+        dragged = 1;
+        translateTo(d3.mouse(that), location0);
+        zoomed(dispatch);
+      }
+      function ended() {
+        subject.on(mousemove, null).on(mouseup, null);
+        dragRestore(dragged && d3.event.target === target);
+        zoomended(dispatch);
+      }
+    }
+    function touchstarted() {
+      var that = this, dispatch = event.of(that, arguments), locations0 = {}, distance0 = 0, scale0, zoomName = ".zoom-" + d3.event.changedTouches[0].identifier, touchmove = "touchmove" + zoomName, touchend = "touchend" + zoomName, targets = [], subject = d3.select(that), dragRestore = d3_event_dragSuppress(that);
+      started();
+      zoomstarted(dispatch);
+      subject.on(mousedown, null).on(touchstart, started);
+      function relocate() {
+        var touches = d3.touches(that);
+        scale0 = view.k;
+        touches.forEach(function(t) {
+          if (t.identifier in locations0) locations0[t.identifier] = location(t);
+        });
+        return touches;
+      }
+      function started() {
+        var target = d3.event.target;
+        d3.select(target).on(touchmove, moved).on(touchend, ended);
+        targets.push(target);
+        var changed = d3.event.changedTouches;
+        for (var i = 0, n = changed.length; i < n; ++i) {
+          locations0[changed[i].identifier] = null;
+        }
+        var touches = relocate(), now = Date.now();
+        if (touches.length === 1) {
+          if (now - touchtime < 500) {
+            var p = touches[0];
+            zoomTo(that, p, locations0[p.identifier], Math.floor(Math.log(view.k) / Math.LN2) + 1);
+            d3_eventPreventDefault();
+          }
+          touchtime = now;
+        } else if (touches.length > 1) {
+          var p = touches[0], q = touches[1], dx = p[0] - q[0], dy = p[1] - q[1];
+          distance0 = dx * dx + dy * dy;
+        }
+      }
+      function moved() {
+        var touches = d3.touches(that), p0, l0, p1, l1;
+        d3_selection_interrupt.call(that);
+        for (var i = 0, n = touches.length; i < n; ++i, l1 = null) {
+          p1 = touches[i];
+          if (l1 = locations0[p1.identifier]) {
+            if (l0) break;
+            p0 = p1, l0 = l1;
+          }
+        }
+        if (l1) {
+          var distance1 = (distance1 = p1[0] - p0[0]) * distance1 + (distance1 = p1[1] - p0[1]) * distance1, scale1 = distance0 && Math.sqrt(distance1 / distance0);
+          p0 = [ (p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2 ];
+          l0 = [ (l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2 ];
+          scaleTo(scale1 * scale0);
+        }
+        touchtime = null;
+        translateTo(p0, l0);
+        zoomed(dispatch);
+      }
+      function ended() {
+        if (d3.event.touches.length) {
+          var changed = d3.event.changedTouches;
+          for (var i = 0, n = changed.length; i < n; ++i) {
+            delete locations0[changed[i].identifier];
+          }
+          for (var identifier in locations0) {
+            return void relocate();
+          }
+        }
+        d3.selectAll(targets).on(zoomName, null);
+        subject.on(mousedown, mousedowned).on(touchstart, touchstarted);
+        dragRestore();
+        zoomended(dispatch);
+      }
+    }
+    function mousewheeled() {
+      var dispatch = event.of(this, arguments);
+      if (mousewheelTimer) clearTimeout(mousewheelTimer); else d3_selection_interrupt.call(this), 
+      translate0 = location(center0 = center || d3.mouse(this)), zoomstarted(dispatch);
+      mousewheelTimer = setTimeout(function() {
+        mousewheelTimer = null;
+        zoomended(dispatch);
+      }, 50);
+      d3_eventPreventDefault();
+      scaleTo(Math.pow(2, d3_behavior_zoomDelta() * .002) * view.k);
+      translateTo(center0, translate0);
+      zoomed(dispatch);
+    }
+    function dblclicked() {
+      var p = d3.mouse(this), k = Math.log(view.k) / Math.LN2;
+      zoomTo(this, p, location(p), d3.event.shiftKey ? Math.ceil(k) - 1 : Math.floor(k) + 1);
+    }
+    return d3.rebind(zoom, event, "on");
+  };
+  var d3_behavior_zoomInfinity = [ 0, Infinity ], d3_behavior_zoomDelta, d3_behavior_zoomWheel;
+  d3.color = d3_color;
+  function d3_color() {}
+  d3_color.prototype.toString = function() {
+    return this.rgb() + "";
+  };
+  d3.hsl = d3_hsl;
+  function d3_hsl(h, s, l) {
+    return this instanceof d3_hsl ? void (this.h = +h, this.s = +s, this.l = +l) : arguments.length < 2 ? h instanceof d3_hsl ? new d3_hsl(h.h, h.s, h.l) : d3_rgb_parse("" + h, d3_rgb_hsl, d3_hsl) : new d3_hsl(h, s, l);
+  }
+  var d3_hslPrototype = d3_hsl.prototype = new d3_color();
+  d3_hslPrototype.brighter = function(k) {
+    k = Math.pow(.7, arguments.length ? k : 1);
+    return new d3_hsl(this.h, this.s, this.l / k);
+  };
+  d3_hslPrototype.darker = function(k) {
+    k = Math.pow(.7, arguments.length ? k : 1);
+    return new d3_hsl(this.h, this.s, k * this.l);
+  };
+  d3_hslPrototype.rgb = function() {
+    return d3_hsl_rgb(this.h, this.s, this.l);
+  };
+  function d3_hsl_rgb(h, s, l) {
+    var m1, m2;
+    h = isNaN(h) ? 0 : (h %= 360) < 0 ? h + 360 : h;
+    s = isNaN(s) ? 0 : s < 0 ? 0 : s > 1 ? 1 : s;
+    l = l < 0 ? 0 : l > 1 ? 1 : l;
+    m2 = l <= .5 ? l * (1 + s) : l + s - l * s;
+    m1 = 2 * l - m2;
+    function v(h) {
+      if (h > 360) h -= 360; else if (h < 0) h += 360;
+      if (h < 60) return m1 + (m2 - m1) * h / 60;
+      if (h < 180) return m2;
+      if (h < 240) return m1 + (m2 - m1) * (240 - h) / 60;
+      return m1;
+    }
+    function vv(h) {
+      return Math.round(v(h) * 255);
+    }
+    return new d3_rgb(vv(h + 120), vv(h), vv(h - 120));
+  }
+  d3.hcl = d3_hcl;
+  function d3_hcl(h, c, l) {
+    return this instanceof d3_hcl ? void (this.h = +h, this.c = +c, this.l = +l) : arguments.length < 2 ? h instanceof d3_hcl ? new d3_hcl(h.h, h.c, h.l) : h instanceof d3_lab ? d3_lab_hcl(h.l, h.a, h.b) : d3_lab_hcl((h = d3_rgb_lab((h = d3.rgb(h)).r, h.g, h.b)).l, h.a, h.b) : new d3_hcl(h, c, l);
+  }
+  var d3_hclPrototype = d3_hcl.prototype = new d3_color();
+  d3_hclPrototype.brighter = function(k) {
+    return new d3_hcl(this.h, this.c, Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)));
+  };
+  d3_hclPrototype.darker = function(k) {
+    return new d3_hcl(this.h, this.c, Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)));
+  };
+  d3_hclPrototype.rgb = function() {
+    return d3_hcl_lab(this.h, this.c, this.l).rgb();
+  };
+  function d3_hcl_lab(h, c, l) {
+    if (isNaN(h)) h = 0;
+    if (isNaN(c)) c = 0;
+    return new d3_lab(l, Math.cos(h *= d3_radians) * c, Math.sin(h) * c);
+  }
+  d3.lab = d3_lab;
+  function d3_lab(l, a, b) {
+    return this instanceof d3_lab ? void (this.l = +l, this.a = +a, this.b = +b) : arguments.length < 2 ? l instanceof d3_lab ? new d3_lab(l.l, l.a, l.b) : l instanceof d3_hcl ? d3_hcl_lab(l.h, l.c, l.l) : d3_rgb_lab((l = d3_rgb(l)).r, l.g, l.b) : new d3_lab(l, a, b);
+  }
+  var d3_lab_K = 18;
+  var d3_lab_X = .95047, d3_lab_Y = 1, d3_lab_Z = 1.08883;
+  var d3_labPrototype = d3_lab.prototype = new d3_color();
+  d3_labPrototype.brighter = function(k) {
+    return new d3_lab(Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);
+  };
+  d3_labPrototype.darker = function(k) {
+    return new d3_lab(Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);
+  };
+  d3_labPrototype.rgb = function() {
+    return d3_lab_rgb(this.l, this.a, this.b);
+  };
+  function d3_lab_rgb(l, a, b) {
+    var y = (l + 16) / 116, x = y + a / 500, z = y - b / 200;
+    x = d3_lab_xyz(x) * d3_lab_X;
+    y = d3_lab_xyz(y) * d3_lab_Y;
+    z = d3_lab_xyz(z) * d3_lab_Z;
+    return new d3_rgb(d3_xyz_rgb(3.2404542 * x - 1.5371385 * y - .4985314 * z), d3_xyz_rgb(-.969266 * x + 1.8760108 * y + .041556 * z), d3_xyz_rgb(.0556434 * x - .2040259 * y + 1.0572252 * z));
+  }
+  function d3_lab_hcl(l, a, b) {
+    return l > 0 ? new d3_hcl(Math.atan2(b, a) * d3_degrees, Math.sqrt(a * a + b * b), l) : new d3_hcl(NaN, NaN, l);
+  }
+  function d3_lab_xyz(x) {
+    return x > .206893034 ? x * x * x : (x - 4 / 29) / 7.787037;
+  }
+  function d3_xyz_lab(x) {
+    return x > .008856 ? Math.pow(x, 1 / 3) : 7.787037 * x + 4 / 29;
+  }
+  function d3_xyz_rgb(r) {
+    return Math.round(255 * (r <= .00304 ? 12.92 * r : 1.055 * Math.pow(r, 1 / 2.4) - .055));
+  }
+  d3.rgb = d3_rgb;
+  function d3_rgb(r, g, b) {
+    return this instanceof d3_rgb ? void (this.r = ~~r, this.g = ~~g, this.b = ~~b) : arguments.length < 2 ? r instanceof d3_rgb ? new d3_rgb(r.r, r.g, r.b) : d3_rgb_parse("" + r, d3_rgb, d3_hsl_rgb) : new d3_rgb(r, g, b);
+  }
+  function d3_rgbNumber(value) {
+    return new d3_rgb(value >> 16, value >> 8 & 255, value & 255);
+  }
+  function d3_rgbString(value) {
+    return d3_rgbNumber(value) + "";
+  }
+  var d3_rgbPrototype = d3_rgb.prototype = new d3_color();
+  d3_rgbPrototype.brighter = function(k) {
+    k = Math.pow(.7, arguments.length ? k : 1);
+    var r = this.r, g = this.g, b = this.b, i = 30;
+    if (!r && !g && !b) return new d3_rgb(i, i, i);
+    if (r && r < i) r = i;
+    if (g && g < i) g = i;
+    if (b && b < i) b = i;
+    return new d3_rgb(Math.min(255, r / k), Math.min(255, g / k), Math.min(255, b / k));
+  };
+  d3_rgbPrototype.darker = function(k) {
+    k = Math.pow(.7, arguments.length ? k : 1);
+    return new d3_rgb(k * this.r, k * this.g, k * this.b);
+  };
+  d3_rgbPrototype.hsl = function() {
+    return d3_rgb_hsl(this.r, this.g, this.b);
+  };
+  d3_rgbPrototype.toString = function() {
+    return "#" + d3_rgb_hex(this.r) + d3_rgb_hex(this.g) + d3_rgb_hex(this.b);
+  };
+  function d3_rgb_hex(v) {
+    return v < 16 ? "0" + Math.max(0, v).toString(16) : Math.min(255, v).toString(16);
+  }
+  function d3_rgb_parse(format, rgb, hsl) {
+    var r = 0, g = 0, b = 0, m1, m2, color;
+    m1 = /([a-z]+)\((.*)\)/.exec(format = format.toLowerCase());
+    if (m1) {
+      m2 = m1[2].split(",");
+      switch (m1[1]) {
+       case "hsl":
+        {
+          return hsl(parseFloat(m2[0]), parseFloat(m2[1]) / 100, parseFloat(m2[2]) / 100);
+        }
+
+       case "rgb":
+        {
+          return rgb(d3_rgb_parseNumber(m2[0]), d3_rgb_parseNumber(m2[1]), d3_rgb_parseNumber(m2[2]));
+        }
+      }
+    }
+    if (color = d3_rgb_names.get(format)) {
+      return rgb(color.r, color.g, color.b);
+    }
+    if (format != null && format.charAt(0) === "#" && !isNaN(color = parseInt(format.slice(1), 16))) {
+      if (format.length === 4) {
+        r = (color & 3840) >> 4;
+        r = r >> 4 | r;
+        g = color & 240;
+        g = g >> 4 | g;
+        b = color & 15;
+        b = b << 4 | b;
+      } else if (format.length === 7) {
+        r = (color & 16711680) >> 16;
+        g = (color & 65280) >> 8;
+        b = color & 255;
+      }
+    }
+    return rgb(r, g, b);
+  }
+  function d3_rgb_hsl(r, g, b) {
+    var min = Math.min(r /= 255, g /= 255, b /= 255), max = Math.max(r, g, b), d = max - min, h, s, l = (max + min) / 2;
+    if (d) {
+      s = l < .5 ? d / (max + min) : d / (2 - max - min);
+      if (r == max) h = (g - b) / d + (g < b ? 6 : 0); else if (g == max) h = (b - r) / d + 2; else h = (r - g) / d + 4;
+      h *= 60;
+    } else {
+      h = NaN;
+      s = l > 0 && l < 1 ? 0 : h;
+    }
+    return new d3_hsl(h, s, l);
+  }
+  function d3_rgb_lab(r, g, b) {
+    r = d3_rgb_xyz(r);
+    g = d3_rgb_xyz(g);
+    b = d3_rgb_xyz(b);
+    var x = d3_xyz_lab((.4124564 * r + .3575761 * g + .1804375 * b) / d3_lab_X), y = d3_xyz_lab((.2126729 * r + .7151522 * g + .072175 * b) / d3_lab_Y), z = d3_xyz_lab((.0193339 * r + .119192 * g + .9503041 * b) / d3_lab_Z);
+    return d3_lab(116 * y - 16, 500 * (x - y), 200 * (y - z));
+  }
+  function d3_rgb_xyz(r) {
+    return (r /= 255) <= .04045 ? r / 12.92 : Math.pow((r + .055) / 1.055, 2.4);
+  }
+  function d3_rgb_parseNumber(c) {
+    var f = parseFloat(c);
+    return c.charAt(c.length - 1) === "%" ? Math.round(f * 2.55) : f;
+  }
+  var d3_rgb_names = d3.map({
+    aliceblue: 15792383,
+    antiquewhite: 16444375,
+    aqua: 65535,
+    aquamarine: 8388564,
+    azure: 15794175,
+    beige: 16119260,
+    bisque: 16770244,
+    black: 0,
+    blanchedalmond: 16772045,
+    blue: 255,
+    blueviolet: 9055202,
+    brown: 10824234,
+    burlywood: 14596231,
+    cadetblue: 6266528,
+    chartreuse: 8388352,
+    chocolate: 13789470,
+    coral: 16744272,
+    cornflowerblue: 6591981,
+    cornsilk: 16775388,
+    crimson: 14423100,
+    cyan: 65535,
+    darkblue: 139,
+    darkcyan: 35723,
+    darkgoldenrod: 12092939,
+    darkgray: 11119017,
+    darkgreen: 25600,
+    darkgrey: 11119017,
+    darkkhaki: 12433259,
+    darkmagenta: 9109643,
+    darkolivegreen: 5597999,
+    darkorange: 16747520,
+    darkorchid: 10040012,
+    darkred: 9109504,
+    darksalmon: 15308410,
+    darkseagreen: 9419919,
+    darkslateblue: 4734347,
+    darkslategray: 3100495,
+    darkslategrey: 3100495,
+    darkturquoise: 52945,
+    darkviolet: 9699539,
+    deeppink: 16716947,
+    deepskyblue: 49151,
+    dimgray: 6908265,
+    dimgrey: 6908265,
+    dodgerblue: 2003199,
+    firebrick: 11674146,
+    floralwhite: 16775920,
+    forestgreen: 2263842,
+    fuchsia: 16711935,
+    gainsboro: 14474460,
+    ghostwhite: 16316671,
+    gold: 16766720,
+    goldenrod: 14329120,
+    gray: 8421504,
+    green: 32768,
+    greenyellow: 11403055,
+    grey: 8421504,
+    honeydew: 15794160,
+    hotpink: 16738740,
+    indianred: 13458524,
+    indigo: 4915330,
+    ivory: 16777200,
+    khaki: 15787660,
+    lavender: 15132410,
+    lavenderblush: 16773365,
+    lawngreen: 8190976,
+    lemonchiffon: 16775885,
+    lightblue: 11393254,
+    lightcoral: 15761536,
+    lightcyan: 14745599,
+    lightgoldenrodyellow: 16448210,
+    lightgray: 13882323,
+    lightgreen: 9498256,
+    lightgrey: 13882323,
+    lightpink: 16758465,
+    lightsalmon: 16752762,
+    lightseagreen: 2142890,
+    lightskyblue: 8900346,
+    lightslategray: 7833753,
+    lightslategrey: 7833753,
+    lightsteelblue: 11584734,
+    lightyellow: 16777184,
+    lime: 65280,
+    limegreen: 3329330,
+    linen: 16445670,
+    magenta: 16711935,
+    maroon: 8388608,
+    mediumaquamarine: 6737322,
+    mediumblue: 205,
+    mediumorchid: 12211667,
+    mediumpurple: 9662683,
+    mediumseagreen: 3978097,
+    mediumslateblue: 8087790,
+    mediumspringgreen: 64154,
+    mediumturquoise: 4772300,
+    mediumvioletred: 13047173,
+    midnightblue: 1644912,
+    mintcream: 16121850,
+    mistyrose: 16770273,
+    moccasin: 16770229,
+    navajowhite: 16768685,
+    navy: 128,
+    oldlace: 16643558,
+    olive: 8421376,
+    olivedrab: 7048739,
+    orange: 16753920,
+    orangered: 16729344,
+    orchid: 14315734,
+    palegoldenrod: 15657130,
+    palegreen: 10025880,
+    paleturquoise: 11529966,
+    palevioletred: 14381203,
+    papayawhip: 16773077,
+    peachpuff: 16767673,
+    peru: 13468991,
+    pink: 16761035,
+    plum: 14524637,
+    powderblue: 11591910,
+    purple: 8388736,
+    rebeccapurple: 6697881,
+    red: 16711680,
+    rosybrown: 12357519,
+    royalblue: 4286945,
+    saddlebrown: 9127187,
+    salmon: 16416882,
+    sandybrown: 16032864,
+    seagreen: 3050327,
+    seashell: 16774638,
+    sienna: 10506797,
+    silver: 12632256,
+    skyblue: 8900331,
+    slateblue: 6970061,
+    slategray: 7372944,
+    slategrey: 7372944,
+    snow: 16775930,
+    springgreen: 65407,
+    steelblue: 4620980,
+    tan: 13808780,
+    teal: 32896,
+    thistle: 14204888,
+    tomato: 16737095,
+    turquoise: 4251856,
+    violet: 15631086,
+    wheat: 16113331,
+    white: 16777215,
+    whitesmoke: 16119285,
+    yellow: 16776960,
+    yellowgreen: 10145074
+  });
+  d3_rgb_names.forEach(function(key, value) {
+    d3_rgb_names.set(key, d3_rgbNumber(value));
+  });
+  function d3_functor(v) {
+    return typeof v === "function" ? v : function() {
+      return v;
+    };
+  }
+  d3.functor = d3_functor;
+  d3.xhr = d3_xhrType(d3_identity);
+  function d3_xhrType(response) {
+    return function(url, mimeType, callback) {
+      if (arguments.length === 2 && typeof mimeType === "function") callback = mimeType, 
+      mimeType = null;
+      return d3_xhr(url, mimeType, response, callback);
+    };
+  }
+  function d3_xhr(url, mimeType, response, callback) {
+    var xhr = {}, dispatch = d3.dispatch("beforesend", "progress", "load", "error"), headers = {}, request = new XMLHttpRequest(), responseType = null;
+    if (this.XDomainRequest && !("withCredentials" in request) && /^(http(s)?:)?\/\//.test(url)) request = new XDomainRequest();
+    "onload" in request ? request.onload = request.onerror = respond : request.onreadystatechange = function() {
+      request.readyState > 3 && respond();
+    };
+    function respond() {
+      var status = request.status, result;
+      if (!status && d3_xhrHasResponse(request) || status >= 200 && status < 300 || status === 304) {
+        try {
+          result = response.call(xhr, request);
+        } catch (e) {
+          dispatch.error.call(xhr, e);
+          return;
+        }
+        dispatch.load.call(xhr, result);
+      } else {
+        dispatch.error.call(xhr, request);
+      }
+    }
+    request.onprogress = function(event) {
+      var o = d3.event;
+      d3.event = event;
+      try {
+        dispatch.progress.call(xhr, request);
+      } finally {
+        d3.event = o;
+      }
+    };
+    xhr.header = function(name, value) {
+      name = (name + "").toLowerCase();
+      if (arguments.length < 2) return headers[name];
+      if (value == null) delete headers[name]; else headers[name] = value + "";
+      return xhr;
+    };
+    xhr.mimeType = function(value) {
+      if (!arguments.length) return mimeType;
+      mimeType = value == null ? null : value + "";
+      return xhr;
+    };
+    xhr.responseType = function(value) {
+      if (!arguments.length) return responseType;
+      responseType = value;
+      return xhr;
+    };
+    xhr.response = function(value) {
+      response = value;
+      return xhr;
+    };
+    [ "get", "post" ].forEach(function(method) {
+      xhr[method] = function() {
+        return xhr.send.apply(xhr, [ method ].concat(d3_array(arguments)));
+      };
+    });
+    xhr.send = function(method, data, callback) {
+      if (arguments.length === 2 && typeof data === "function") callback = data, data = null;
+      request.open(method, url, true);
+      if (mimeType != null && !("accept" in headers)) headers["accept"] = mimeType + ",*/*";
+      if (request.setRequestHeader) for (var name in headers) request.setRequestHeader(name, headers[name]);
+      if (mimeType != null && request.overrideMimeType) request.overrideMimeType(mimeType);
+      if (responseType != null) request.responseType = responseType;
+      if (callback != null) xhr.on("error", callback).on("load", function(request) {
+        callback(null, request);
+      });
+      dispatch.beforesend.call(xhr, request);
+      request.send(data == null ? null : data);
+      return xhr;
+    };
+    xhr.abort = function() {
+      request.abort();
+      return xhr;
+    };
+    d3.rebind(xhr, dispatch, "on");
+    return callback == null ? xhr : xhr.get(d3_xhr_fixCallback(callback));
+  }
+  function d3_xhr_fixCallback(callback) {
+    return callback.length === 1 ? function(error, request) {
+      callback(error == null ? request : null);
+    } : callback;
+  }
+  function d3_xhrHasResponse(request) {
+    var type = request.responseType;
+    return type && type !== "text" ? request.response : request.responseText;
+  }
+  d3.dsv = function(delimiter, mimeType) {
+    var reFormat = new RegExp('["' + delimiter + "\n]"), delimiterCode = delimiter.charCodeAt(0);
+    function dsv(url, row, callback) {
+      if (arguments.length < 3) callback = row, row = null;
+      var xhr = d3_xhr(url, mimeType, row == null ? response : typedResponse(row), callback);
+      xhr.row = function(_) {
+        return arguments.length ? xhr.response((row = _) == null ? response : typedResponse(_)) : row;
+      };
+      return xhr;
+    }
+    function response(request) {
+      return dsv.parse(request.responseText);
+    }
+    function typedResponse(f) {
+      return function(request) {
+        return dsv.parse(request.responseText, f);
+      };
+    }
+    dsv.parse = function(text, f) {
+      var o;
+      return dsv.parseRows(text, function(row, i) {
+        if (o) return o(row, i - 1);
+        var a = new Function("d", "return {" + row.map(function(name, i) {
+          return JSON.stringify(name) + ": d[" + i + "]";
+        }).join(",") + "}");
+        o = f ? function(row, i) {
+          return f(a(row), i);
+        } : a;
+      });
+    };
+    dsv.parseRows = function(text, f) {
+      var EOL = {}, EOF = {}, rows = [], N = text.length, I = 0, n = 0, t, eol;
+      function token() {
+        if (I >= N) return EOF;
+        if (eol) return eol = false, EOL;
+        var j = I;
+        if (text.charCodeAt(j) === 34) {
+          var i = j;
+          while (i++ < N) {
+            if (text.charCodeAt(i) === 34) {
+              if (text.charCodeAt(i + 1) !== 34) break;
+              ++i;
+            }
+          }
+          I = i + 2;
+          var c = text.charCodeAt(i + 1);
+          if (c === 13) {
+            eol = true;
+            if (text.charCodeAt(i + 2) === 10) ++I;
+          } else if (c === 10) {
+            eol = true;
+          }
+          return text.slice(j + 1, i).replace(/""/g, '"');
+        }
+        while (I < N) {
+          var c = text.charCodeAt(I++), k = 1;
+          if (c === 10) eol = true; else if (c === 13) {
+            eol = true;
+            if (text.charCodeAt(I) === 10) ++I, ++k;
+          } else if (c !== delimiterCode) continue;
+          return text.slice(j, I - k);
+        }
+        return text.slice(j);
+      }
+      while ((t = token()) !== EOF) {
+        var a = [];
+        while (t !== EOL && t !== EOF) {
+          a.push(t);
+          t = token();
+        }
+        if (f && (a = f(a, n++)) == null) continue;
+        rows.push(a);
+      }
+      return rows;
+    };
+    dsv.format = function(rows) {
+      if (Array.isArray(rows[0])) return dsv.formatRows(rows);
+      var fieldSet = new d3_Set(), fields = [];
+      rows.forEach(function(row) {
+        for (var field in row) {
+          if (!fieldSet.has(field)) {
+            fields.push(fieldSet.add(field));
+          }
+        }
+      });
+      return [ fields.map(formatValue).join(delimiter) ].concat(rows.map(function(row) {
+        return fields.map(function(field) {
+          return formatValue(row[field]);
+        }).join(delimiter);
+      })).join("\n");
+    };
+    dsv.formatRows = function(rows) {
+      return rows.map(formatRow).join("\n");
+    };
+    function formatRow(row) {
+      return row.map(formatValue).join(delimiter);
+    }
+    function formatValue(text) {
+      return reFormat.test(text) ? '"' + text.replace(/\"/g, '""') + '"' : text;
+    }
+    return dsv;
+  };
+  d3.csv = d3.dsv(",", "text/csv");
+  d3.tsv = d3.dsv("	", "text/tab-separated-values");
+  var d3_timer_queueHead, d3_timer_queueTail, d3_timer_interval, d3_timer_timeout, d3_timer_active, d3_timer_frame = this[d3_vendorSymbol(this, "requestAnimationFrame")] || function(callback) {
+    setTimeout(callback, 17);
+  };
+  d3.timer = function(callback, delay, then) {
+    var n = arguments.length;
+    if (n < 2) delay = 0;
+    if (n < 3) then = Date.now();
+    var time = then + delay, timer = {
+      c: callback,
+      t: time,
+      f: false,
+      n: null
+    };
+    if (d3_timer_queueTail) d3_timer_queueTail.n = timer; else d3_timer_queueHead = timer;
+    d3_timer_queueTail = timer;
+    if (!d3_timer_interval) {
+      d3_timer_timeout = clearTimeout(d3_timer_timeout);
+      d3_timer_interval = 1;
+      d3_timer_frame(d3_timer_step);
+    }
+  };
+  function d3_timer_step() {
+    var now = d3_timer_mark(), delay = d3_timer_sweep() - now;
+    if (delay > 24) {
+      if (isFinite(delay)) {
+        clearTimeout(d3_timer_timeout);
+        d3_timer_timeout = setTimeout(d3_timer_step, delay);
+      }
+      d3_timer_interval = 0;
+    } else {
+      d3_timer_interval = 1;
+      d3_timer_frame(d3_timer_step);
+    }
+  }
+  d3.timer.flush = function() {
+    d3_timer_mark();
+    d3_timer_sweep();
+  };
+  function d3_timer_mark() {
+    var now = Date.now();
+    d3_timer_active = d3_timer_queueHead;
+    while (d3_timer_active) {
+      if (now >= d3_timer_active.t) d3_timer_active.f = d3_timer_active.c(now - d3_timer_active.t);
+      d3_timer_active = d3_timer_active.n;
+    }
+    return now;
+  }
+  function d3_timer_sweep() {
+    var t0, t1 = d3_timer_queueHead, time = Infinity;
+    while (t1) {
+      if (t1.f) {
+        t1 = t0 ? t0.n = t1.n : d3_timer_queueHead = t1.n;
+      } else {
+        if (t1.t < time) time = t1.t;
+        t1 = (t0 = t1).n;
+      }
+    }
+    d3_timer_queueTail = t0;
+    return time;
+  }
+  function d3_format_precision(x, p) {
+    return p - (x ? Math.ceil(Math.log(x) / Math.LN10) : 1);
+  }
+  d3.round = function(x, n) {
+    return n ? Math.round(x * (n = Math.pow(10, n))) / n : Math.round(x);
+  };
+  var d3_formatPrefixes = [ "y", "z", "a", "f", "p", "n", "µ", "m", "", "k", "M", "G", "T", "P", "E", "Z", "Y" ].map(d3_formatPrefix);
+  d3.formatPrefix = function(value, precision) {
+    var i = 0;
+    if (value) {
+      if (value < 0) value *= -1;
+      if (precision) value = d3.round(value, d3_format_precision(value, precision));
+      i = 1 + Math.floor(1e-12 + Math.log(value) / Math.LN10);
+      i = Math.max(-24, Math.min(24, Math.floor((i - 1) / 3) * 3));
+    }
+    return d3_formatPrefixes[8 + i / 3];
+  };
+  function d3_formatPrefix(d, i) {
+    var k = Math.pow(10, abs(8 - i) * 3);
+    return {
+      scale: i > 8 ? function(d) {
+        return d / k;
+      } : function(d) {
+        return d * k;
+      },
+      symbol: d
+    };
+  }
+  function d3_locale_numberFormat(locale) {
+    var locale_decimal = locale.decimal, locale_thousands = locale.thousands, locale_grouping = locale.grouping, locale_currency = locale.currency, formatGroup = locale_grouping && locale_thousands ? function(value, width) {
+      var i = value.length, t = [], j = 0, g = locale_grouping[0], length = 0;
+      while (i > 0 && g > 0) {
+        if (length + g + 1 > width) g = Math.max(1, width - length);
+        t.push(value.substring(i -= g, i + g));
+        if ((length += g + 1) > width) break;
+        g = locale_grouping[j = (j + 1) % locale_grouping.length];
+      }
+      return t.reverse().join(locale_thousands);
+    } : d3_identity;
+    return function(specifier) {
+      var match = d3_format_re.exec(specifier), fill = match[1] || " ", align = match[2] || ">", sign = match[3] || "-", symbol = match[4] || "", zfill = match[5], width = +match[6], comma = match[7], precision = match[8], type = match[9], scale = 1, prefix = "", suffix = "", integer = false, exponent = true;
+      if (precision) precision = +precision.substring(1);
+      if (zfill || fill === "0" && align === "=") {
+        zfill = fill = "0";
+        align = "=";
+      }
+      switch (type) {
+       case "n":
+        comma = true;
+        type = "g";
+        break;
+
+       case "%":
+        scale = 100;
+        suffix = "%";
+        type = "f";
+        break;
+
+       case "p":
+        scale = 100;
+        suffix = "%";
+        type = "r";
+        break;
+
+       case "b":
+       case "o":
+       case "x":
+       case "X":
+        if (symbol === "#") prefix = "0" + type.toLowerCase();
+
+       case "c":
+        exponent = false;
+
+       case "d":
+        integer = true;
+        precision = 0;
+        break;
+
+       case "s":
+        scale = -1;
+        type = "r";
+        break;
+      }
+      if (symbol === "$") prefix = locale_currency[0], suffix = locale_currency[1];
+      if (type == "r" && !precision) type = "g";
+      if (precision != null) {
+        if (type == "g") precision = Math.max(1, Math.min(21, precision)); else if (type == "e" || type == "f") precision = Math.max(0, Math.min(20, precision));
+      }
+      type = d3_format_types.get(type) || d3_format_typeDefault;
+      var zcomma = zfill && comma;
+      return function(value) {
+        var fullSuffix = suffix;
+        if (integer && value % 1) return "";
+        var negative = value < 0 || value === 0 && 1 / value < 0 ? (value = -value, "-") : sign === "-" ? "" : sign;
+        if (scale < 0) {
+          var unit = d3.formatPrefix(value, precision);
+          value = unit.scale(value);
+          fullSuffix = unit.symbol + suffix;
+        } else {
+          value *= scale;
+        }
+        value = type(value, precision);
+        var i = value.lastIndexOf("."), before, after;
+        if (i < 0) {
+          var j = exponent ? value.lastIndexOf("e") : -1;
+          if (j < 0) before = value, after = ""; else before = value.substring(0, j), after = value.substring(j);
+        } else {
+          before = value.substring(0, i);
+          after = locale_decimal + value.substring(i + 1);
+        }
+        if (!zfill && comma) before = formatGroup(before, Infinity);
+        var length = prefix.length + before.length + after.length + (zcomma ? 0 : negative.length), padding = length < width ? new Array(length = width - length + 1).join(fill) : "";
+        if (zcomma) before = formatGroup(padding + before, padding.length ? width - after.length : Infinity);
+        negative += prefix;
+        value = before + after;
+        return (align === "<" ? negative + value + padding : align === ">" ? padding + negative + value : align === "^" ? padding.substring(0, length >>= 1) + negative + value + padding.substring(length) : negative + (zcomma ? value : padding + value)) + fullSuffix;
+      };
+    };
+  }
+  var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?([$#])?(0)?(\d+)?(,)?(\.-?\d+)?([a-z%])?/i;
+  var d3_format_types = d3.map({
+    b: function(x) {
+      return x.toString(2);
+    },
+    c: function(x) {
+      return String.fromCharCode(x);
+    },
+    o: function(x) {
+      return x.toString(8);
+    },
+    x: function(x) {
+      return x.toString(16);
+    },
+    X: function(x) {
+      return x.toString(16).toUpperCase();
+    },
+    g: function(x, p) {
+      return x.toPrecision(p);
+    },
+    e: function(x, p) {
+      return x.toExponential(p);
+    },
+    f: function(x, p) {
+      return x.toFixed(p);
+    },
+    r: function(x, p) {
+      return (x = d3.round(x, d3_format_precision(x, p))).toFixed(Math.max(0, Math.min(20, d3_format_precision(x * (1 + 1e-15), p))));
+    }
+  });
+  function d3_format_typeDefault(x) {
+    return x + "";
+  }
+  var d3_time = d3.time = {}, d3_date = Date;
+  function d3_date_utc() {
+    this._ = new Date(arguments.length > 1 ? Date.UTC.apply(this, arguments) : arguments[0]);
+  }
+  d3_date_utc.prototype = {
+    getDate: function() {
+      return this._.getUTCDate();
+    },
+    getDay: function() {
+      return this._.getUTCDay();
+    },
+    getFullYear: function() {
+      return this._.getUTCFullYear();
+    },
+    getHours: function() {
+      return this._.getUTCHours();
+    },
+    getMilliseconds: function() {
+      return this._.getUTCMilliseconds();
+    },
+    getMinutes: function() {
+      return this._.getUTCMinutes();
+    },
+    getMonth: function() {
+      return this._.getUTCMonth();
+    },
+    getSeconds: function() {
+      return this._.getUTCSeconds();
+    },
+    getTime: function() {
+      return this._.getTime();
+    },
+    getTimezoneOffset: function() {
+      return 0;
+    },
+    valueOf: function() {
+      return this._.valueOf();
+    },
+    setDate: function() {
+      d3_time_prototype.setUTCDate.apply(this._, arguments);
+    },
+    setDay: function() {
+      d3_time_prototype.setUTCDay.apply(this._, arguments);
+    },
+    setFullYear: function() {
+      d3_time_prototype.setUTCFullYear.apply(this._, arguments);
+    },
+    setHours: function() {
+      d3_time_prototype.setUTCHours.apply(this._, arguments);
+    },
+    setMilliseconds: function() {
+      d3_time_prototype.setUTCMilliseconds.apply(this._, arguments);
+    },
+    setMinutes: function() {
+      d3_time_prototype.setUTCMinutes.apply(this._, arguments);
+    },
+    setMonth: function() {
+      d3_time_prototype.setUTCMonth.apply(this._, arguments);
+    },
+    setSeconds: function() {
+      d3_time_prototype.setUTCSeconds.apply(this._, arguments);
+    },
+    setTime: function() {
+      d3_time_prototype.setTime.apply(this._, arguments);
+    }
+  };
+  var d3_time_prototype = Date.prototype;
+  function d3_time_interval(local, step, number) {
+    function round(date) {
+      var d0 = local(date), d1 = offset(d0, 1);
+      return date - d0 < d1 - date ? d0 : d1;
+    }
+    function ceil(date) {
+      step(date = local(new d3_date(date - 1)), 1);
+      return date;
+    }
+    function offset(date, k) {
+      step(date = new d3_date(+date), k);
+      return date;
+    }
+    function range(t0, t1, dt) {
+      var time = ceil(t0), times = [];
+      if (dt > 1) {
+        while (time < t1) {
+          if (!(number(time) % dt)) times.push(new Date(+time));
+          step(time, 1);
+        }
+      } else {
+        while (time < t1) times.push(new Date(+time)), step(time, 1);
+      }
+      return times;
+    }
+    function range_utc(t0, t1, dt) {
+      try {
+        d3_date = d3_date_utc;
+        var utc = new d3_date_utc();
+        utc._ = t0;
+        return range(utc, t1, dt);
+      } finally {
+        d3_date = Date;
+      }
+    }
+    local.floor = local;
+    local.round = round;
+    local.ceil = ceil;
+    local.offset = offset;
+    local.range = range;
+    var utc = local.utc = d3_time_interval_utc(local);
+    utc.floor = utc;
+    utc.round = d3_time_interval_utc(round);
+    utc.ceil = d3_time_interval_utc(ceil);
+    utc.offset = d3_time_interval_utc(offset);
+    utc.range = range_utc;
+    return local;
+  }
+  function d3_time_interval_utc(method) {
+    return function(date, k) {
+      try {
+        d3_date = d3_date_utc;
+        var utc = new d3_date_utc();
+        utc._ = date;
+        return method(utc, k)._;
+      } finally {
+        d3_date = Date;
+      }
+    };
+  }
+  d3_time.year = d3_time_interval(function(date) {
+    date = d3_time.day(date);
+    date.setMonth(0, 1);
+    return date;
+  }, function(date, offset) {
+    date.setFullYear(date.getFullYear() + offset);
+  }, function(date) {
+    return date.getFullYear();
+  });
+  d3_time.years = d3_time.year.range;
+  d3_time.years.utc = d3_time.year.utc.range;
+  d3_time.day = d3_time_interval(function(date) {
+    var day = new d3_date(2e3, 0);
+    day.setFullYear(date.getFullYear(), date.getMonth(), date.getDate());
+    return day;
+  }, function(date, offset) {
+    date.setDate(date.getDate() + offset);
+  }, function(date) {
+    return date.getDate() - 1;
+  });
+  d3_time.days = d3_time.day.range;
+  d3_time.days.utc = d3_time.day.utc.range;
+  d3_time.dayOfYear = function(date) {
+    var year = d3_time.year(date);
+    return Math.floor((date - year - (date.getTimezoneOffset() - year.getTimezoneOffset()) * 6e4) / 864e5);
+  };
+  [ "sunday", "monday", "tuesday", "wednesday", "thursday", "friday", "saturday" ].forEach(function(day, i) {
+    i = 7 - i;
+    var interval = d3_time[day] = d3_time_interval(function(date) {
+      (date = d3_time.day(date)).setDate(date.getDate() - (date.getDay() + i) % 7);
+      return date;
+    }, function(date, offset) {
+      date.setDate(date.getDate() + Math.floor(offset) * 7);
+    }, function(date) {
+      var day = d3_time.year(date).getDay();
+      return Math.floor((d3_time.dayOfYear(date) + (day + i) % 7) / 7) - (day !== i);
+    });
+    d3_time[day + "s"] = interval.range;
+    d3_time[day + "s"].utc = interval.utc.range;
+    d3_time[day + "OfYear"] = function(date) {
+      var day = d3_time.year(date).getDay();
+      return Math.floor((d3_time.dayOfYear(date) + (day + i) % 7) / 7);
+    };
+  });
+  d3_time.week = d3_time.sunday;
+  d3_time.weeks = d3_time.sunday.range;
+  d3_time.weeks.utc = d3_time.sunday.utc.range;
+  d3_time.weekOfYear = d3_time.sundayOfYear;
+  function d3_locale_timeFormat(locale) {
+    var locale_dateTime = locale.dateTime, locale_date = locale.date, locale_time = locale.time, locale_periods = locale.periods, locale_days = locale.days, locale_shortDays = locale.shortDays, locale_months = locale.months, locale_shortMonths = locale.shortMonths;
+    function d3_time_format(template) {
+      var n = template.length;
+      function format(date) {
+        var string = [], i = -1, j = 0, c, p, f;
+        while (++i < n) {
+          if (template.charCodeAt(i) === 37) {
+            string.push(template.slice(j, i));
+            if ((p = d3_time_formatPads[c = template.charAt(++i)]) != null) c = template.charAt(++i);
+            if (f = d3_time_formats[c]) c = f(date, p == null ? c === "e" ? " " : "0" : p);
+            string.push(c);
+            j = i + 1;
+          }
+        }
+        string.push(template.slice(j, i));
+        return string.join("");
+      }
+      format.parse = function(string) {
+        var d = {
+          y: 1900,
+          m: 0,
+          d: 1,
+          H: 0,
+          M: 0,
+          S: 0,
+          L: 0,
+          Z: null
+        }, i = d3_time_parse(d, template, string, 0);
+        if (i != string.length) return null;
+        if ("p" in d) d.H = d.H % 12 + d.p * 12;
+        var localZ = d.Z != null && d3_date !== d3_date_utc, date = new (localZ ? d3_date_utc : d3_date)();
+        if ("j" in d) date.setFullYear(d.y, 0, d.j); else if ("w" in d && ("W" in d || "U" in d)) {
+          date.setFullYear(d.y, 0, 1);
+          date.setFullYear(d.y, 0, "W" in d ? (d.w + 6) % 7 + d.W * 7 - (date.getDay() + 5) % 7 : d.w + d.U * 7 - (date.getDay() + 6) % 7);
+        } else date.setFullYear(d.y, d.m, d.d);
+        date.setHours(d.H + (d.Z / 100 | 0), d.M + d.Z % 100, d.S, d.L);
+        return localZ ? date._ : date;
+      };
+      format.toString = function() {
+        return template;
+      };
+      return format;
+    }
+    function d3_time_parse(date, template, string, j) {
+      var c, p, t, i = 0, n = template.length, m = string.length;
+      while (i < n) {
+        if (j >= m) return -1;
+        c = template.charCodeAt(i++);
+        if (c === 37) {
+          t = template.charAt(i++);
+          p = d3_time_parsers[t in d3_time_formatPads ? template.charAt(i++) : t];
+          if (!p || (j = p(date, string, j)) < 0) return -1;
+        } else if (c != string.charCodeAt(j++)) {
+          return -1;
+        }
+      }
+      return j;
+    }
+    d3_time_format.utc = function(template) {
+      var local = d3_time_format(template);
+      function format(date) {
+        try {
+          d3_date = d3_date_utc;
+          var utc = new d3_date();
+          utc._ = date;
+          return local(utc);
+        } finally {
+          d3_date = Date;
+        }
+      }
+      format.parse = function(string) {
+        try {
+          d3_date = d3_date_utc;
+          var date = local.parse(string);
+          return date && date._;
+        } finally {
+          d3_date = Date;
+        }
+      };
+      format.toString = local.toString;
+      return format;
+    };
+    d3_time_format.multi = d3_time_format.utc.multi = d3_time_formatMulti;
+    var d3_time_periodLookup = d3.map(), d3_time_dayRe = d3_time_formatRe(locale_days), d3_time_dayLookup = d3_time_formatLookup(locale_days), d3_time_dayAbbrevRe = d3_time_formatRe(locale_shortDays), d3_time_dayAbbrevLookup = d3_time_formatLookup(locale_shortDays), d3_time_monthRe = d3_time_formatRe(locale_months), d3_time_monthLookup = d3_time_formatLookup(locale_months), d3_time_monthAbbrevRe = d3_time_formatRe(locale_shortMonths), d3_time_monthAbbrevLookup = d3_time_formatLookup(locale_shortMonths);
+    locale_periods.forEach(function(p, i) {
+      d3_time_periodLookup.set(p.toLowerCase(), i);
+    });
+    var d3_time_formats = {
+      a: function(d) {
+        return locale_shortDays[d.getDay()];
+      },
+      A: function(d) {
+        return locale_days[d.getDay()];
+      },
+      b: function(d) {
+        return locale_shortMonths[d.getMonth()];
+      },
+      B: function(d) {
+        return locale_months[d.getMonth()];
+      },
+      c: d3_time_format(locale_dateTime),
+      d: function(d, p) {
+        return d3_time_formatPad(d.getDate(), p, 2);
+      },
+      e: function(d, p) {
+        return d3_time_formatPad(d.getDate(), p, 2);
+      },
+      H: function(d, p) {
+        return d3_time_formatPad(d.getHours(), p, 2);
+      },
+      I: function(d, p) {
+        return d3_time_formatPad(d.getHours() % 12 || 12, p, 2);
+      },
+      j: function(d, p) {
+        return d3_time_formatPad(1 + d3_time.dayOfYear(d), p, 3);
+      },
+      L: function(d, p) {
+        return d3_time_formatPad(d.getMilliseconds(), p, 3);
+      },
+      m: function(d, p) {
+        return d3_time_formatPad(d.getMonth() + 1, p, 2);
+      },
+      M: function(d, p) {
+        return d3_time_formatPad(d.getMinutes(), p, 2);
+      },
+      p: function(d) {
+        return locale_periods[+(d.getHours() >= 12)];
+      },
+      S: function(d, p) {
+        return d3_time_formatPad(d.getSeconds(), p, 2);
+      },
+      U: function(d, p) {
+        return d3_time_formatPad(d3_time.sundayOfYear(d), p, 2);
+      },
+      w: function(d) {
+        return d.getDay();
+      },
+      W: function(d, p) {
+        return d3_time_formatPad(d3_time.mondayOfYear(d), p, 2);
+      },
+      x: d3_time_format(locale_date),
+      X: d3_time_format(locale_time),
+      y: function(d, p) {
+        return d3_time_formatPad(d.getFullYear() % 100, p, 2);
+      },
+      Y: function(d, p) {
+        return d3_time_formatPad(d.getFullYear() % 1e4, p, 4);
+      },
+      Z: d3_time_zone,
+      "%": function() {
+        return "%";
+      }
+    };
+    var d3_time_parsers = {
+      a: d3_time_parseWeekdayAbbrev,
+      A: d3_time_parseWeekday,
+      b: d3_time_parseMonthAbbrev,
+      B: d3_time_parseMonth,
+      c: d3_time_parseLocaleFull,
+      d: d3_time_parseDay,
+      e: d3_time_parseDay,
+      H: d3_time_parseHour24,
+      I: d3_time_parseHour24,
+      j: d3_time_parseDayOfYear,
+      L: d3_time_parseMilliseconds,
+      m: d3_time_parseMonthNumber,
+      M: d3_time_parseMinutes,
+      p: d3_time_parseAmPm,
+      S: d3_time_parseSeconds,
+      U: d3_time_parseWeekNumberSunday,
+      w: d3_time_parseWeekdayNumber,
+      W: d3_time_parseWeekNumberMonday,
+      x: d3_time_parseLocaleDate,
+      X: d3_time_parseLocaleTime,
+      y: d3_time_parseYear,
+      Y: d3_time_parseFullYear,
+      Z: d3_time_parseZone,
+      "%": d3_time_parseLiteralPercent
+    };
+    function d3_time_parseWeekdayAbbrev(date, string, i) {
+      d3_time_dayAbbrevRe.lastIndex = 0;
+      var n = d3_time_dayAbbrevRe.exec(string.slice(i));
+      return n ? (date.w = d3_time_dayAbbrevLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
+    }
+    function d3_time_parseWeekday(date, string, i) {
+      d3_time_dayRe.lastIndex = 0;
+      var n = d3_time_dayRe.exec(string.slice(i));
+      return n ? (date.w = d3_time_dayLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
+    }
+    function d3_time_parseMonthAbbrev(date, string, i) {
+      d3_time_monthAbbrevRe.lastIndex = 0;
+      var n = d3_time_monthAbbrevRe.exec(string.slice(i));
+      return n ? (date.m = d3_time_monthAbbrevLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
+    }
+    function d3_time_parseMonth(date, string, i) {
+      d3_time_monthRe.lastIndex = 0;
+      var n = d3_time_monthRe.exec(string.slice(i));
+      return n ? (date.m = d3_time_monthLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
+    }
+    function d3_time_parseLocaleFull(date, string, i) {
+      return d3_time_parse(date, d3_time_formats.c.toString(), string, i);
+    }
+    function d3_time_parseLocaleDate(date, string, i) {
+      return d3_time_parse(date, d3_time_formats.x.toString(), string, i);
+    }
+    function d3_time_parseLocaleTime(date, string, i) {
+      return d3_time_parse(date, d3_time_formats.X.toString(), string, i);
+    }
+    function d3_time_parseAmPm(date, string, i) {
+      var n = d3_time_periodLookup.get(string.slice(i, i += 2).toLowerCase());
+      return n == null ? -1 : (date.p = n, i);
+    }
+    return d3_time_format;
+  }
+  var d3_time_formatPads = {
+    "-": "",
+    _: " ",
+    "0": "0"
+  }, d3_time_numberRe = /^\s*\d+/, d3_time_percentRe = /^%/;
+  function d3_time_formatPad(value, fill, width) {
+    var sign = value < 0 ? "-" : "", string = (sign ? -value : value) + "", length = string.length;
+    return sign + (length < width ? new Array(width - length + 1).join(fill) + string : string);
+  }
+  function d3_time_formatRe(names) {
+    return new RegExp("^(?:" + names.map(d3.requote).join("|") + ")", "i");
+  }
+  function d3_time_formatLookup(names) {
+    var map = new d3_Map(), i = -1, n = names.length;
+    while (++i < n) map.set(names[i].toLowerCase(), i);
+    return map;
+  }
+  function d3_time_parseWeekdayNumber(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i, i + 1));
+    return n ? (date.w = +n[0], i + n[0].length) : -1;
+  }
+  function d3_time_parseWeekNumberSunday(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i));
+    return n ? (date.U = +n[0], i + n[0].length) : -1;
+  }
+  function d3_time_parseWeekNumberMonday(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i));
+    return n ? (date.W = +n[0], i + n[0].length) : -1;
+  }
+  function d3_time_parseFullYear(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i, i + 4));
+    return n ? (date.y = +n[0], i + n[0].length) : -1;
+  }
+  function d3_time_parseYear(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
+    return n ? (date.y = d3_time_expandYear(+n[0]), i + n[0].length) : -1;
+  }
+  function d3_time_parseZone(date, string, i) {
+    return /^[+-]\d{4}$/.test(string = string.slice(i, i + 5)) ? (date.Z = -string, 
+    i + 5) : -1;
+  }
+  function d3_time_expandYear(d) {
+    return d + (d > 68 ? 1900 : 2e3);
+  }
+  function d3_time_parseMonthNumber(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
+    return n ? (date.m = n[0] - 1, i + n[0].length) : -1;
+  }
+  function d3_time_parseDay(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
+    return n ? (date.d = +n[0], i + n[0].length) : -1;
+  }
+  function d3_time_parseDayOfYear(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i, i + 3));
+    return n ? (date.j = +n[0], i + n[0].length) : -1;
+  }
+  function d3_time_parseHour24(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
+    return n ? (date.H = +n[0], i + n[0].length) : -1;
+  }
+  function d3_time_parseMinutes(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
+    return n ? (date.M = +n[0], i + n[0].length) : -1;
+  }
+  function d3_time_parseSeconds(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
+    return n ? (date.S = +n[0], i + n[0].length) : -1;
+  }
+  function d3_time_parseMilliseconds(date, string, i) {
+    d3_time_numberRe.lastIndex = 0;
+    var n = d3_time_numberRe.exec(string.slice(i, i + 3));
+    return n ? (date.L = +n[0], i + n[0].length) : -1;
+  }
+  function d3_time_zone(d) {
+    var z = d.getTimezoneOffset(), zs = z > 0 ? "-" : "+", zh = abs(z) / 60 | 0, zm = abs(z) % 60;
+    return zs + d3_time_formatPad(zh, "0", 2) + d3_time_formatPad(zm, "0", 2);
+  }
+  function d3_time_parseLiteralPercent(date, string, i) {
+    d3_time_percentRe.lastIndex = 0;
+    var n = d3_time_percentRe.exec(string.slice(i, i + 1));
+    return n ? i + n[0].length : -1;
+  }
+  function d3_time_formatMulti(formats) {
+    var n = formats.length, i = -1;
+    while (++i < n) formats[i][0] = this(formats[i][0]);
+    return function(date) {
+      var i = 0, f = formats[i];
+      while (!f[1](date)) f = formats[++i];
+      return f[0](date);
+    };
+  }
+  d3.locale = function(locale) {
+    return {
+      numberFormat: d3_locale_numberFormat(locale),
+      timeFormat: d3_locale_timeFormat(locale)
+    };
+  };
+  var d3_locale_enUS = d3.locale({
+    decimal: ".",
+    thousands: ",",
+    grouping: [ 3 ],
+    currency: [ "$", "" ],
+    dateTime: "%a %b %e %X %Y",
+    date: "%m/%d/%Y",
+    time: "%H:%M:%S",
+    periods: [ "AM", "PM" ],
+    days: [ "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" ],
+    shortDays: [ "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" ],
+    months: [ "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" ],
+    shortMonths: [ "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" ]
+  });
+  d3.format = d3_locale_enUS.numberFormat;
+  d3.geo = {};
+  function d3_adder() {}
+  d3_adder.prototype = {
+    s: 0,
+    t: 0,
+    add: function(y) {
+      d3_adderSum(y, this.t, d3_adderTemp);
+      d3_adderSum(d3_adderTemp.s, this.s, this);
+      if (this.s) this.t += d3_adderTemp.t; else this.s = d3_adderTemp.t;
+    },
+    reset: function() {
+      this.s = this.t = 0;
+    },
+    valueOf: function() {
+      return this.s;
+    }
+  };
+  var d3_adderTemp = new d3_adder();
+  function d3_adderSum(a, b, o) {
+    var x = o.s = a + b, bv = x - a, av = x - bv;
+    o.t = a - av + (b - bv);
+  }
+  d3.geo.stream = function(object, listener) {
+    if (object && d3_geo_streamObjectType.hasOwnProperty(object.type)) {
+      d3_geo_streamObjectType[object.type](object, listener);
+    } else {
+      d3_geo_streamGeometry(object, listener);
+    }
+  };
+  function d3_geo_streamGeometry(geometry, listener) {
+    if (geometry && d3_geo_streamGeometryType.hasOwnProperty(geometry.type)) {
+      d3_geo_streamGeometryType[geometry.type](geometry, listener);
+    }
+  }
+  var d3_geo_streamObjectType = {
+    Feature: function(feature, listener) {
+      d3_geo_streamGeometry(feature.geometry, listener);
+    },
+    FeatureCollection: function(object, listener) {
+      var features = object.features, i = -1, n = features.length;
+      while (++i < n) d3_geo_streamGeometry(features[i].geometry, listener);
+    }
+  };
+  var d3_geo_streamGeometryType = {
+    Sphere: function(object, listener) {
+      listener.sphere();
+    },
+    Point: function(object, listener) {
+      object = object.coordinates;
+      listener.point(object[0], object[1], object[2]);
+    },
+    MultiPoint: function(object, listener) {
+      var coordinates = object.coordinates, i = -1, n = coordinates.length;
+      while (++i < n) object = coordinates[i], listener.point(object[0], object[1], object[2]);
+    },
+    LineString: function(object, listener) {
+      d3_geo_streamLine(object.coordinates, listener, 0);
+    },
+    MultiLineString: function(object, listener) {
+      var coordinates = object.coordinates, i = -1, n = coordinates.length;
+      while (++i < n) d3_geo_streamLine(coordinates[i], listener, 0);
+    },
+    Polygon: function(object, listener) {
+      d3_geo_streamPolygon(object.coordinates, listener);
+    },
+    MultiPolygon: function(object, listener) {
+      var coordinates = object.coordinates, i = -1, n = coordinates.length;
+      while (++i < n) d3_geo_streamPolygon(coordinates[i], listener);
+    },
+    GeometryCollection: function(object, listener) {
+      var geometries = object.geometries, i = -1, n = geometries.length;
+      while (++i < n) d3_geo_streamGeometry(geometries[i], listener);
+    }
+  };
+  function d3_geo_streamLine(coordinates, listener, closed) {
+    var i = -1, n = coordinates.length - closed, coordinate;
+    listener.lineStart();
+    while (++i < n) coordinate = coordinates[i], listener.point(coordinate[0], coordinate[1], coordinate[2]);
+    listener.lineEnd();
+  }
+  function d3_geo_streamPolygon(coordinates, listener) {
+    var i = -1, n = coordinates.length;
+    listener.polygonStart();
+    while (++i < n) d3_geo_streamLine(coordinates[i], listener, 1);
+    listener.polygonEnd();
+  }
+  d3.geo.area = function(object) {
+    d3_geo_areaSum = 0;
+    d3.geo.stream(object, d3_geo_area);
+    return d3_geo_areaSum;
+  };
+  var d3_geo_areaSum, d3_geo_areaRingSum = new d3_adder();
+  var d3_geo_area = {
+    sphere: function() {
+      d3_geo_areaSum += 4 * π;
+    },
+    point: d3_noop,
+    lineStart: d3_noop,
+    lineEnd: d3_noop,
+    polygonStart: function() {
+      d3_geo_areaRingSum.reset();
+      d3_geo_area.lineStart = d3_geo_areaRingStart;
+    },
+    polygonEnd: function() {
+      var area = 2 * d3_geo_areaRingSum;
+      d3_geo_areaSum += area < 0 ? 4 * π + area : area;
+      d3_geo_area.lineStart = d3_geo_area.lineEnd = d3_geo_area.point = d3_noop;
+    }
+  };
+  function d3_geo_areaRingStart() {
+    var λ00, φ00, λ0, cosφ0, sinφ0;
+    d3_geo_area.point = function(λ, φ) {
+      d3_geo_area.point = nextPoint;
+      λ0 = (λ00 = λ) * d3_radians, cosφ0 = Math.cos(φ = (φ00 = φ) * d3_radians / 2 + π / 4), 
+      sinφ0 = Math.sin(φ);
+    };
+    function nextPoint(λ, φ) {
+      λ *= d3_radians;
+      φ = φ * d3_radians / 2 + π / 4;
+      var dλ = λ - λ0, sdλ = dλ >= 0 ? 1 : -1, adλ = sdλ * dλ, cosφ = Math.cos(φ), sinφ = Math.sin(φ), k = sinφ0 * sinφ, u = cosφ0 * cosφ + k * Math.cos(adλ), v = k * sdλ * Math.sin(adλ);
+      d3_geo_areaRingSum.add(Math.atan2(v, u));
+      λ0 = λ, cosφ0 = cosφ, sinφ0 = sinφ;
+    }
+    d3_geo_area.lineEnd = function() {
+      nextPoint(λ00, φ00);
+    };
+  }
+  function d3_geo_cartesian(spherical) {
+    var λ = spherical[0], φ = spherical[1], cosφ = Math.cos(φ);
+    return [ cosφ * Math.cos(λ), cosφ * Math.sin(λ), Math.sin(φ) ];
+  }
+  function d3_geo_cartesianDot(a, b) {
+    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
+  }
+  function d3_geo_cartesianCross(a, b) {
+    return [ a[1] * b[2] - a[2] * b[1], a[2] * b[0] - a[0] * b[2], a[0] * b[1] - a[1] * b[0] ];
+  }
+  function d3_geo_cartesianAdd(a, b) {
+    a[0] += b[0];
+    a[1] += b[1];
+    a[2] += b[2];
+  }
+  function d3_geo_cartesianScale(vector, k) {
+    return [ vector[0] * k, vector[1] * k, vector[2] * k ];
+  }
+  function d3_geo_cartesianNormalize(d) {
+    var l = Math.sqrt(d[0] * d[0] + d[1] * d[1] + d[2] * d[2]);
+    d[0] /= l;
+    d[1] /= l;
+    d[2] /= l;
+  }
+  function d3_geo_spherical(cartesian) {
+    return [ Math.atan2(cartesian[1], cartesian[0]), d3_asin(cartesian[2]) ];
+  }
+  function d3_geo_sphericalEqual(a, b) {
+    return abs(a[0] - b[0]) < ε && abs(a[1] - b[1]) < ε;
+  }
+  d3.geo.bounds = function() {
+    var λ0, φ0, λ1, φ1, λ_, λ__, φ__, p0, dλSum, ranges, range;
+    var bound = {
+      point: point,
+      lineStart: lineStart,
+      lineEnd: lineEnd,
+      polygonStart: function() {
+        bound.point = ringPoint;
+        bound.lineStart = ringStart;
+        bound.lineEnd = ringEnd;
+        dλSum = 0;
+        d3_geo_area.polygonStart();
+      },
+      polygonEnd: function() {
+        d3_geo_area.polygonEnd();
+        bound.point = point;
+        bound.lineStart = lineStart;
+        bound.lineEnd = lineEnd;
+        if (d3_geo_areaRingSum < 0) λ0 = -(λ1 = 180), φ0 = -(φ1 = 90); else if (dλSum > ε) φ1 = 90; else if (dλSum < -ε) φ0 = -90;
+        range[0] = λ0, range[1] = λ1;
+      }
+    };
+    function point(λ, φ) {
+      ranges.push(range = [ λ0 = λ, λ1 = λ ]);
+      if (φ < φ0) φ0 = φ;
+      if (φ > φ1) φ1 = φ;
+    }
+    function linePoint(λ, φ) {
+      var p = d3_geo_cartesian([ λ * d3_radians, φ * d3_radians ]);
+      if (p0) {
+        var normal = d3_geo_cartesianCross(p0, p), equatorial = [ normal[1], -normal[0], 0 ], inflection = d3_geo_cartesianCross(equatorial, normal);
+        d3_geo_cartesianNormalize(inflection);
+        inflection = d3_geo_spherical(inflection);
+        var dλ = λ - λ_, s = dλ > 0 ? 1 : -1, λi = inflection[0] * d3_degrees * s, antimeridian = abs(dλ) > 180;
+        if (antimeridian ^ (s * λ_ < λi && λi < s * λ)) {
+          var φi = inflection[1] * d3_degrees;
+          if (φi > φ1) φ1 = φi;
+        } else if (λi = (λi + 360) % 360 - 180, antimeridian ^ (s * λ_ < λi && λi < s * λ)) {
+          var φi = -inflection[1] * d3_degrees;
+          if (φi < φ0) φ0 = φi;
+        } else {
+          if (φ < φ0) φ0 = φ;
+          if (φ > φ1) φ1 = φ;
+        }
+        if (antimeridian) {
+          if (λ < λ_) {
+            if (angle(λ0, λ) > angle(λ0, λ1)) λ1 = λ;
+          } else {
+            if (angle(λ, λ1) > angle(λ0, λ1)) λ0 = λ;
+          }
+        } else {
+          if (λ1 >= λ0) {
+            if (λ < λ0) λ0 = λ;
+            if (λ > λ1) λ1 = λ;
+          } else {
+            if (λ > λ_) {
+              if (angle(λ0, λ) > angle(λ0, λ1)) λ1 = λ;
+            } else {
+              if (angle(λ, λ1) > angle(λ0, λ1)) λ0 = λ;
+            }
+          }
+        }
+      } else {
+        point(λ, φ);
+      }
+      p0 = p, λ_ = λ;
+    }
+    function lineStart() {
+      bound.point = linePoint;
+    }
+    function lineEnd() {
+      range[0] = λ0, range[1] = λ1;
+      bound.point = point;
+      p0 = null;
+    }
+    function ringPoint(λ, φ) {
+      if (p0) {
+        var dλ = λ - λ_;
+        dλSum += abs(dλ) > 180 ? dλ + (dλ > 0 ? 360 : -360) : dλ;
+      } else λ__ = λ, φ__ = φ;
+      d3_geo_area.point(λ, φ);
+      linePoint(λ, φ);
+    }
+    function ringStart() {
+      d3_geo_area.lineStart();
+    }
+    function ringEnd() {
+      ringPoint(λ__, φ__);
+      d3_geo_area.lineEnd();
+      if (abs(dλSum) > ε) λ0 = -(λ1 = 180);
+      range[0] = λ0, range[1] = λ1;
+      p0 = null;
+    }
+    function angle(λ0, λ1) {
+      return (λ1 -= λ0) < 0 ? λ1 + 360 : λ1;
+    }
+    function compareRanges(a, b) {
+      return a[0] - b[0];
+    }
+    function withinRange(x, range) {
+      return range[0] <= range[1] ? range[0] <= x && x <= range[1] : x < range[0] || range[1] < x;
+    }
+    return function(feature) {
+      φ1 = λ1 = -(λ0 = φ0 = Infinity);
+      ranges = [];
+      d3.geo.stream(feature, bound);
+      var n = ranges.length;
+      if (n) {
+        ranges.sort(compareRanges);
+        for (var i = 1, a = ranges[0], b, merged = [ a ]; i < n; ++i) {
+          b = ranges[i];
+          if (withinRange(b[0], a) || withinRange(b[1], a)) {
+            if (angle(a[0], b[1]) > angle(a[0], a[1])) a[1] = b[1];
+            if (angle(b[0], a[1]) > angle(a[0], a[1])) a[0] = b[0];
+          } else {
+            merged.push(a = b);
+          }
+        }
+        var best = -Infinity, dλ;
+        for (var n = merged.length - 1, i = 0, a = merged[n], b; i <= n; a = b, ++i) {
+          b = merged[i];
+          if ((dλ = angle(a[1], b[0])) > best) best = dλ, λ0 = b[0], λ1 = a[1];
+        }
+      }
+      ranges = range = null;
+      return λ0 === Infinity || φ0 === Infinity ? [ [ NaN, NaN ], [ NaN, NaN ] ] : [ [ λ0, φ0 ], [ λ1, φ1 ] ];
+    };
+  }();
+  d3.geo.centroid = function(object) {
+    d3_geo_centroidW0 = d3_geo_centroidW1 = d3_geo_centroidX0 = d3_geo_centroidY0 = d3_geo_centroidZ0 = d3_geo_centroidX1 = d3_geo_centroidY1 = d3_geo_centroidZ1 = d3_geo_centroidX2 = d3_geo_centroidY2 = d3_geo_centroidZ2 = 0;
+    d3.geo.stream(object, d3_geo_centroid);
+    var x = d3_geo_centroidX2, y = d3_geo_centroidY2, z = d3_geo_centroidZ2, m = x * x + y * y + z * z;
+    if (m < ε2) {
+      x = d3_geo_centroidX1, y = d3_geo_centroidY1, z = d3_geo_centroidZ1;
+      if (d3_geo_centroidW1 < ε) x = d3_geo_centroidX0, y = d3_geo_centroidY0, z = d3_geo_centroidZ0;
+      m = x * x + y * y + z * z;
+      if (m < ε2) return [ NaN, NaN ];
+    }
+    return [ Math.atan2(y, x) * d3_degrees, d3_asin(z / Math.sqrt(m)) * d3_degrees ];
+  };
+  var d3_geo_centroidW0, d3_geo_centroidW1, d3_geo_centroidX0, d3_geo_centroidY0, d3_geo_centroidZ0, d3_geo_centroidX1, d3_geo_centroidY1, d3_geo_centroidZ1, d3_geo_centroidX2, d3_geo_centroidY2, d3_geo_centroidZ2;
+  var d3_geo_centroid = {
+    sphere: d3_noop,
+    point: d3_geo_centroidPoint,
+    lineStart: d3_geo_centroidLineStart,
+    lineEnd: d3_geo_centroidLineEnd,
+    polygonStart: function() {
+      d3_geo_centroid.lineStart = d3_geo_centroidRingStart;
+    },
+    polygonEnd: function() {
+      d3_geo_centroid.lineStart = d3_geo_centroidLineStart;
+    }
+  };
+  function d3_geo_centroidPoint(λ, φ) {
+    λ *= d3_radians;
+    var cosφ = Math.cos(φ *= d3_radians);
+    d3_geo_centroidPointXYZ(cosφ * Math.cos(λ), cosφ * Math.sin(λ), Math.sin(φ));
+  }
+  function d3_geo_centroidPointXYZ(x, y, z) {
+    ++d3_geo_centroidW0;
+    d3_geo_centroidX0 += (x - d3_geo_centroidX0) / d3_geo_centroidW0;
+    d3_geo_centroidY0 += (y - d3_geo_centroidY0) / d3_geo_centroidW0;
+    d3_geo_centroidZ0 += (z - d3_geo_centroidZ0) / d3_geo_centroidW0;
+  }
+  function d3_geo_centroidLineStart() {
+    var x0, y0, z0;
+    d3_geo_centroid.point = function(λ, φ) {
+      λ *= d3_radians;
+      var cosφ = Math.cos(φ *= d3_radians);
+      x0 = cosφ * Math.cos(λ);
+      y0 = cosφ * Math.sin(λ);
+      z0 = Math.sin(φ);
+      d3_geo_centroid.point = nextPoint;
+      d3_geo_centroidPointXYZ(x0, y0, z0);
+    };
+    function nextPoint(λ, φ) {
+      λ *= d3_radians;
+      var cosφ = Math.cos(φ *= d3_radians), x = cosφ * Math.cos(λ), y = cosφ * Math.sin(λ), z = Math.sin(φ), w = Math.atan2(Math.sqrt((w = y0 * z - z0 * y) * w + (w = z0 * x - x0 * z) * w + (w = x0 * y - y0 * x) * w), x0 * x + y0 * y + z0 * z);
+      d3_geo_centroidW1 += w;
+      d3_geo_centroidX1 += w * (x0 + (x0 = x));
+      d3_geo_centroidY1 += w * (y0 + (y0 = y));
+      d3_geo_centroidZ1 += w * (z0 + (z0 = z));
+      d3_geo_centroidPointXYZ(x0, y0, z0);
+    }
+  }
+  function d3_geo_centroidLineEnd() {
+    d3_geo_centroid.point = d3_geo_centroidPoint;
+  }
+  function d3_geo_centroidRingStart() {
+    var λ00, φ00, x0, y0, z0;
+    d3_geo_centroid.point = function(λ, φ) {
+      λ00 = λ, φ00 = φ;
+      d3_geo_centroid.point = nextPoint;
+      λ *= d3_radians;
+      var cosφ = Math.cos(φ *= d3_radians);
+      x0 = cosφ * Math.cos(λ);
+      y0 = cosφ * Math.sin(λ);
+      z0 = Math.sin(φ);
+      d3_geo_centroidPointXYZ(x0, y0, z0);
+    };
+    d3_geo_centroid.lineEnd = function() {
+      nextPoint(λ00, φ00);
+      d3_geo_centroid.lineEnd = d3_geo_centroidLineEnd;
+      d3_geo_centroid.point = d3_geo_centroidPoint;
+    };
+    function nextPoint(λ, φ) {
+      λ *= d3_radians;
+      var cosφ = Math.cos(φ *= d3_radians), x = cosφ * Math.cos(λ), y = cosφ * Math.sin(λ), z = Math.sin(φ), cx = y0 * z - z0 * y, cy = z0 * x - x0 * z, cz = x0 * y - y0 * x, m = Math.sqrt(cx * cx + cy * cy + cz * cz), u = x0 * x + y0 * y + z0 * z, v = m && -d3_acos(u) / m, w = Math.atan2(m, u);
+      d3_geo_centroidX2 += v * cx;
+      d3_geo_centroidY2 += v * cy;
+      d3_geo_centroidZ2 += v * cz;
+      d3_geo_centroidW1 += w;
+      d3_geo_centroidX1 += w * (x0 + (x0 = x));
+      d3_geo_centroidY1 += w * (y0 + (y0 = y));
+      d3_geo_centroidZ1 += w * (z0 + (z0 = z));
+      d3_geo_centroidPointXYZ(x0, y0, z0);
+    }
+  }
+  function d3_geo_compose(a, b) {
+    function compose(x, y) {
+      return x = a(x, y), b(x[0], x[1]);
+    }
+    if (a.invert && b.invert) compose.invert = function(x, y) {
+      return x = b.invert(x, y), x && a.invert(x[0], x[1]);
+    };
+    return compose;
+  }
+  function d3_true() {
+    return true;
+  }
+  function d3_geo_clipPolygon(segments, compare, clipStartInside, interpolate, listener) {
+    var subject = [], clip = [];
+    segments.forEach(function(segment) {
+      if ((n = segment.length - 1) <= 0) return;
+      var n, p0 = segment[0], p1 = segment[n];
+      if (d3_geo_sphericalEqual(p0, p1)) {
+        listener.lineStart();
+        for (var i = 0; i < n; ++i) listener.point((p0 = segment[i])[0], p0[1]);
+        listener.lineEnd();
+        return;
+      }
+      var a = new d3_geo_clipPolygonIntersection(p0, segment, null, true), b = new d3_geo_clipPolygonIntersection(p0, null, a, false);
+      a.o = b;
+      subject.push(a);
+      clip.push(b);
+      a = new d3_geo_clipPolygonIntersection(p1, segment, null, false);
+      b = new d3_geo_clipPolygonIntersection(p1, null, a, true);
+      a.o = b;
+      subject.push(a);
+      clip.push(b);
+    });
+    clip.sort(compare);
+    d3_geo_clipPolygonLinkCircular(subject);
+    d3_geo_clipPolygonLinkCircular(clip);
+    if (!subject.length) return;
+    for (var i = 0, entry = clipStartInside, n = clip.length; i < n; ++i) {
+      clip[i].e = entry = !entry;
+    }
+    var start = subject[0], points, point;
+    while (1) {
+      var current = start, isSubject = true;
+      while (current.v) if ((current = current.n) === start) return;
+      points = current.z;
+      listener.lineStart();
+      do {
+        current.v = current.o.v = true;
+        if (current.e) {
+          if (isSubject) {
+            for (var i = 0, n = points.length; i < n; ++i) listener.point((point = points[i])[0], point[1]);
+          } else {
+            interpolate(current.x, current.n.x, 1, listener);
+          }
+          current = current.n;
+        } else {
+          if (isSubject) {
+            points = current.p.z;
+            for (var i = points.length - 1; i >= 0; --i) listener.point((point = points[i])[0], point[1]);
+          } else {
+            interpolate(current.x, current.p.x, -1, listener);
+          }
+          current = current.p;
+        }
+        current = current.o;
+        points = current.z;
+        isSubject = !isSubject;
+      } while (!current.v);
+      listener.lineEnd();
+    }
+  }
+  function d3_geo_clipPolygonLinkCircular(array) {
+    if (!(n = array.length)) return;
+    var n, i = 0, a = array[0], b;
+    while (++i < n) {
+      a.n = b = array[i];
+      b.p = a;
+      a = b;
+    }
+    a.n = b = array[0];
+    b.p = a;
+  }
+  function d3_geo_clipPolygonIntersection(point, points, other, entry) {
+    this.x = point;
+    this.z = points;
+    this.o = other;
+    this.e = entry;
+    this.v = false;
+    this.n = this.p = null;
+  }
+  function d3_geo_clip(pointVisible, clipLine, interpolate, clipStart) {
+    return function(rotate, listener) {
+      var line = clipLine(listener), rotatedClipStart = rotate.invert(clipStart[0], clipStart[1]);
+      var clip = {
+        point: point,
+        lineStart: lineStart,
+        lineEnd: lineEnd,
+        polygonStart: function() {
+          clip.point = pointRing;
+          clip.lineStart = ringStart;
+          clip.lineEnd = ringEnd;
+          segments = [];
+          polygon = [];
+        },
+        polygonEnd: function() {
+          clip.point = point;
+          clip.lineStart = lineStart;
+          clip.lineEnd = lineEnd;
+          segments = d3.merge(segments);
+          var clipStartInside = d3_geo_pointInPolygon(rotatedClipStart, polygon);
+          if (segments.length) {
+            if (!polygonStarted) listener.polygonStart(), polygonStarted = true;
+            d3_geo_clipPolygon(segments, d3_geo_clipSort, clipStartInside, interpolate, listener);
+          } else if (clipStartInside) {
+            if (!polygonStarted) listener.polygonStart(), polygonStarted = true;
+            listener.lineStart();
+            interpolate(null, null, 1, listener);
+            listener.lineEnd();
+          }
+          if (polygonStarted) listener.polygonEnd(), polygonStarted = false;
+          segments = polygon = null;
+        },
+        sphere: function() {
+          listener.polygonStart();
+          listener.lineStart();
+          interpolate(null, null, 1, listener);
+          listener.lineEnd();
+          listener.polygonEnd();
+        }
+      };
+      function point(λ, φ) {
+        var point = rotate(λ, φ);
+        if (pointVisible(λ = point[0], φ = point[1])) listener.point(λ, φ);
+      }
+      function pointLine(λ, φ) {
+        var point = rotate(λ, φ);
+        line.point(point[0], point[1]);
+      }
+      function lineStart() {
+        clip.point = pointLine;
+        line.lineStart();
+      }
+      function lineEnd() {
+        clip.point = point;
+        line.lineEnd();
+      }
+      var segments;
+      var buffer = d3_geo_clipBufferListener(), ringListener = clipLine(buffer), polygonStarted = false, polygon, ring;
+      function pointRing(λ, φ) {
+        ring.push([ λ, φ ]);
+        var point = rotate(λ, φ);
+        ringListener.point(point[0], point[1]);
+      }
+      function ringStart() {
+        ringListener.lineStart();
+        ring = [];
+      }
+      function ringEnd() {
+        pointRing(ring[0][0], ring[0][1]);
+        ringListener.lineEnd();
+        var clean = ringListener.clean(), ringSegments = buffer.buffer(), segment, n = ringSegments.length;
+        ring.pop();
+        polygon.push(ring);
+        ring = null;
+        if (!n) return;
+        if (clean & 1) {
+          segment = ringSegments[0];
+          var n = segment.length - 1, i = -1, point;
+          if (n > 0) {
+            if (!polygonStarted) listener.polygonStart(), polygonStarted = true;
+            listener.lineStart();
+            while (++i < n) listener.point((point = segment[i])[0], point[1]);
+            listener.lineEnd();
+          }
+          return;
+        }
+        if (n > 1 && clean & 2) ringSegments.push(ringSegments.pop().concat(ringSegments.shift()));
+        segments.push(ringSegments.filter(d3_geo_clipSegmentLength1));
+      }
+      return clip;
+    };
+  }
+  function d3_geo_clipSegmentLength1(segment) {
+    return segment.length > 1;
+  }
+  function d3_geo_clipBufferListener() {
+    var lines = [], line;
+    return {
+      lineStart: function() {
+        lines.push(line = []);
+      },
+      point: function(λ, φ) {
+        line.push([ λ, φ ]);
+      },
+      lineEnd: d3_noop,
+      buffer: function() {
+        var buffer = lines;
+        lines = [];
+        line = null;
+        return buffer;
+      },
+      rejoin: function() {
+        if (lines.length > 1) lines.push(lines.pop().concat(lines.shift()));
+      }
+    };
+  }
+  function d3_geo_clipSort(a, b) {
+    return ((a = a.x)[0] < 0 ? a[1] - halfπ - ε : halfπ - a[1]) - ((b = b.x)[0] < 0 ? b[1] - halfπ - ε : halfπ - b[1]);
+  }
+  var d3_geo_clipAntimeridian = d3_geo_clip(d3_true, d3_geo_clipAntimeridianLine, d3_geo_clipAntimeridianInterpolate, [ -π, -π / 2 ]);
+  function d3_geo_clipAntimeridianLine(listener) {
+    var λ0 = NaN, φ0 = NaN, sλ0 = NaN, clean;
+    return {
+      lineStart: function() {
+        listener.lineStart();
+        clean = 1;
+      },
+      point: function(λ1, φ1) {
+        var sλ1 = λ1 > 0 ? π : -π, dλ = abs(λ1 - λ0);
+        if (abs(dλ - π) < ε) {
+          listener.point(λ0, φ0 = (φ0 + φ1) / 2 > 0 ? halfπ : -halfπ);
+          listener.point(sλ0, φ0);
+          listener.lineEnd();
+          listener.lineStart();
+          listener.point(sλ1, φ0);
+          listener.point(λ1, φ0);
+          clean = 0;
+        } else if (sλ0 !== sλ1 && dλ >= π) {
+          if (abs(λ0 - sλ0) < ε) λ0 -= sλ0 * ε;
+          if (abs(λ1 - sλ1) < ε) λ1 -= sλ1 * ε;
+          φ0 = d3_geo_clipAntimeridianIntersect(λ0, φ0, λ1, φ1);
+          listener.point(sλ0, φ0);
+          listener.lineEnd();
+          listener.lineStart();
+          listener.point(sλ1, φ0);
+          clean = 0;
+        }
+        listener.point(λ0 = λ1, φ0 = φ1);
+        sλ0 = sλ1;
+      },
+      lineEnd: function() {
+        listener.lineEnd();
+        λ0 = φ0 = NaN;
+      },
+      clean: function() {
+        return 2 - clean;
+      }
+    };
+  }
+  function d3_geo_clipAntimeridianIntersect(λ0, φ0, λ1, φ1) {
+    var cosφ0, cosφ1, sinλ0_λ1 = Math.sin(λ0 - λ1);
+    return abs(sinλ0_λ1) > ε ? Math.atan((Math.sin(φ0) * (cosφ1 = Math.cos(φ1)) * Math.sin(λ1) - Math.sin(φ1) * (cosφ0 = Math.cos(φ0)) * Math.sin(λ0)) / (cosφ0 * cosφ1 * sinλ0_λ1)) : (φ0 + φ1) / 2;
+  }
+  function d3_geo_clipAntimeridianInterpolate(from, to, direction, listener) {
+    var φ;
+    if (from == null) {
+      φ = direction * halfπ;
+      listener.point(-π, φ);
+      listener.point(0, φ);
+      listener.point(π, φ);
+      listener.point(π, 0);
+      listener.point(π, -φ);
+      listener.point(0, -φ);
+      listener.point(-π, -φ);
+      listener.point(-π, 0);
+      listener.point(-π, φ);
+    } else if (abs(from[0] - to[0]) > ε) {
+      var s = from[0] < to[0] ? π : -π;
+      φ = direction * s / 2;
+      listener.point(-s, φ);
+      listener.point(0, φ);
+      listener.point(s, φ);
+    } else {
+      listener.point(to[0], to[1]);
+    }
+  }
+  function d3_geo_pointInPolygon(point, polygon) {
+    var meridian = point[0], parallel = point[1], meridianNormal = [ Math.sin(meridian), -Math.cos(meridian), 0 ], polarAngle = 0, winding = 0;
+    d3_geo_areaRingSum.reset();
+    for (var i = 0, n = polygon.length; i < n; ++i) {
+      var ring = polygon[i], m = ring.length;
+      if (!m) continue;
+      var point0 = ring[0], λ0 = point0[0], φ0 = point0[1] / 2 + π / 4, sinφ0 = Math.sin(φ0), cosφ0 = Math.cos(φ0), j = 1;
+      while (true) {
+        if (j === m) j = 0;
+        point = ring[j];
+        var λ = point[0], φ = point[1] / 2 + π / 4, sinφ = Math.sin(φ), cosφ = Math.cos(φ), dλ = λ - λ0, sdλ = dλ >= 0 ? 1 : -1, adλ = sdλ * dλ, antimeridian = adλ > π, k = sinφ0 * sinφ;
+        d3_geo_areaRingSum.add(Math.atan2(k * sdλ * Math.sin(adλ), cosφ0 * cosφ + k * Math.cos(adλ)));
+        polarAngle += antimeridian ? dλ + sdλ * τ : dλ;
+        if (antimeridian ^ λ0 >= meridian ^ λ >= meridian) {
+          var arc = d3_geo_cartesianCross(d3_geo_cartesian(point0), d3_geo_cartesian(point));
+          d3_geo_cartesianNormalize(arc);
+          var intersection = d3_geo_cartesianCross(meridianNormal, arc);
+          d3_geo_cartesianNormalize(intersection);
+          var φarc = (antimeridian ^ dλ >= 0 ? -1 : 1) * d3_asin(intersection[2]);
+          if (parallel > φarc || parallel === φarc && (arc[0] || arc[1])) {
+            winding += antimeridian ^ dλ >= 0 ? 1 : -1;
+          }
+        }
+        if (!j++) break;
+        λ0 = λ, sinφ0 = sinφ, cosφ0 = cosφ, point0 = point;
+      }
+    }
+    return (polarAngle < -ε || polarAngle < ε && d3_geo_areaRingSum < 0) ^ winding & 1;
+  }
+  function d3_geo_clipCircle(radius) {
+    var cr = Math.cos(radius), smallRadius = cr > 0, notHemisphere = abs(cr) > ε, interpolate = d3_geo_circleInterpolate(radius, 6 * d3_radians);
+    return d3_geo_clip(visible, clipLine, interpolate, smallRadius ? [ 0, -radius ] : [ -π, radius - π ]);
+    function visible(λ, φ) {
+      return Math.cos(λ) * Math.cos(φ) > cr;
+    }
+    function clipLine(listener) {
+      var point0, c0, v0, v00, clean;
+      return {
+        lineStart: function() {
+          v00 = v0 = false;
+          clean = 1;
+        },
+        point: function(λ, φ) {
+          var point1 = [ λ, φ ], point2, v = visible(λ, φ), c = smallRadius ? v ? 0 : code(λ, φ) : v ? code(λ + (λ < 0 ? π : -π), φ) : 0;
+          if (!point0 && (v00 = v0 = v)) listener.lineStart();
+          if (v !== v0) {
+            point2 = intersect(point0, point1);
+            if (d3_geo_sphericalEqual(point0, point2) || d3_geo_sphericalEqual(point1, point2)) {
+              point1[0] += ε;
+              point1[1] += ε;
+              v = visible(point1[0], point1[1]);
+            }
+          }
+          if (v !== v0) {
+            clean = 0;
+            if (v) {
+              listener.lineStart();
+              point2 = intersect(point1, point0);
+              listener.point(point2[0], point2[1]);
+            } else {
+              point2 = intersect(point0, point1);
+              listener.point(point2[0], point2[1]);
+              listener.lineEnd();
+            }
+            point0 = point2;
+          } else if (notHemisphere && point0 && smallRadius ^ v) {
+            var t;
+            if (!(c & c0) && (t = intersect(point1, point0, true))) {
+              clean = 0;
+              if (smallRadius) {
+                listener.lineStart();
+                listener.point(t[0][0], t[0][1]);
+                listener.point(t[1][0], t[1][1]);
+                listener.lineEnd();
+              } else {
+                listener.point(t[1][0], t[1][1]);
+                listener.lineEnd();
+                listener.lineStart();
+                listener.point(t[0][0], t[0][1]);
+              }
+            }
+          }
+          if (v && (!point0 || !d3_geo_sphericalEqual(point0, point1))) {
+            listener.point(point1[0], point1[1]);
+          }
+          point0 = point1, v0 = v, c0 = c;
+        },
+        lineEnd: function() {
+          if (v0) listener.lineEnd();
+          point0 = null;
+        },
+        clean: function() {
+          return clean | (v00 && v0) << 1;
+        }
+      };
+    }
+    function intersect(a, b, two) {
+      var pa = d3_geo_cartesian(a), pb = d3_geo_cartesian(b);
+      var n1 = [ 1, 0, 0 ], n2 = d3_geo_cartesianCross(pa, pb), n2n2 = d3_geo_cartesianDot(n2, n2), n1n2 = n2[0], determinant = n2n2 - n1n2 * n1n2;
+      if (!determinant) return !two && a;
+      var c1 = cr * n2n2 / determinant, c2 = -cr * n1n2 / determinant, n1xn2 = d3_geo_cartesianCross(n1, n2), A = d3_geo_cartesianScale(n1, c1), B = d3_geo_cartesianScale(n2, c2);
+      d3_geo_cartesianAdd(A, B);
+      var u = n1xn2, w = d3_geo_cartesianDot(A, u), uu = d3_geo_cartesianDot(u, u), t2 = w * w - uu * (d3_geo_cartesianDot(A, A) - 1);
+      if (t2 < 0) return;
+      var t = Math.sqrt(t2), q = d3_geo_cartesianScale(u, (-w - t) / uu);
+      d3_geo_cartesianAdd(q, A);
+      q = d3_geo_spherical(q);
+      if (!two) return q;
+      var λ0 = a[0], λ1 = b[0], φ0 = a[1], φ1 = b[1], z;
+      if (λ1 < λ0) z = λ0, λ0 = λ1, λ1 = z;
+      var δλ = λ1 - λ0, polar = abs(δλ - π) < ε, meridian = polar || δλ < ε;
+      if (!polar && φ1 < φ0) z = φ0, φ0 = φ1, φ1 = z;
+      if (meridian ? polar ? φ0 + φ1 > 0 ^ q[1] < (abs(q[0] - λ0) < ε ? φ0 : φ1) : φ0 <= q[1] && q[1] <= φ1 : δλ > π ^ (λ0 <= q[0] && q[0] <= λ1)) {
+        var q1 = d3_geo_cartesianScale(u, (-w + t) / uu);
+        d3_geo_cartesianAdd(q1, A);
+        return [ q, d3_geo_spherical(q1) ];
+      }
+    }
+    function code(λ, φ) {
+      var r = smallRadius ? radius : π - radius, code = 0;
+      if (λ < -r) code |= 1; else if (λ > r) code |= 2;
+      if (φ < -r) code |= 4; else if (φ > r) code |= 8;
+      return code;
+    }
+  }
+  function d3_geom_clipLine(x0, y0, x1, y1) {
+    return function(line) {
+      var a = line.a, b = line.b, ax = a.x, ay = a.y, bx = b.x, by = b.y, t0 = 0, t1 = 1, dx = bx - ax, dy = by - ay, r;
+      r = x0 - ax;
+      if (!dx && r > 0) return;
+      r /= dx;
+      if (dx < 0) {
+        if (r < t0) return;
+        if (r < t1) t1 = r;
+      } else if (dx > 0) {
+        if (r > t1) return;
+        if (r > t0) t0 = r;
+      }
+      r = x1 - ax;
+      if (!dx && r < 0) return;
+      r /= dx;
+      if (dx < 0) {
+        if (r > t1) return;
+        if (r > t0) t0 = r;
+      } else if (dx > 0) {
+        if (r < t0) return;
+        if (r < t1) t1 = r;
+      }
+      r = y0 - ay;
+      if (!dy && r > 0) return;
+      r /= dy;
+      if (dy < 0) {
+        if (r < t0) return;
+        if (r < t1) t1 = r;
+      } else if (dy > 0) {
+        if (r > t1) return;
+        if (r > t0) t0 = r;
+      }
+      r = y1 - ay;
+      if (!dy && r < 0) return;
+      r /= dy;
+      if (dy < 0) {
+        if (r > t1) return;
+        if (r > t0) t0 = r;
+      } else if (dy > 0) {
+        if (r < t0) return;
+        if (r < t1) t1 = r;
+      }
+      if (t0 > 0) line.a = {
+        x: ax + t0 * dx,
+        y: ay + t0 * dy
+      };
+      if (t1 < 1) line.b = {
+        x: ax + t1 * dx,
+        y: ay + t1 * dy
+      };
+      return line;
+    };
+  }
+  var d3_geo_clipExtentMAX = 1e9;
+  d3.geo.clipExtent = function() {
+    var x0, y0, x1, y1, stream, clip, clipExtent = {
+      stream: function(output) {
+        if (stream) stream.valid = false;
+        stream = clip(output);
+        stream.valid = true;
+        return stream;
+      },
+      extent: function(_) {
+        if (!arguments.length) return [ [ x0, y0 ], [ x1, y1 ] ];
+        clip = d3_geo_clipExtent(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]);
+        if (stream) stream.valid = false, stream = null;
+        return clipExtent;
+      }
+    };
+    return clipExtent.extent([ [ 0, 0 ], [ 960, 500 ] ]);
+  };
+  function d3_geo_clipExtent(x0, y0, x1, y1) {
+    return function(listener) {
+      var listener_ = listener, bufferListener = d3_geo_clipBufferListener(), clipLine = d3_geom_clipLine(x0, y0, x1, y1), segments, polygon, ring;
+      var clip = {
+        point: point,
+        lineStart: lineStart,
+        lineEnd: lineEnd,
+        polygonStart: function() {
+          listener = bufferListener;
+          segments = [];
+          polygon = [];
+          clean = true;
+        },
+        polygonEnd: function() {
+          listener = listener_;
+          segments = d3.merge(segments);
+          var clipStartInside = insidePolygon([ x0, y1 ]), inside = clean && clipStartInside, visible = segments.length;
+          if (inside || visible) {
+            listener.polygonStart();
+            if (inside) {
+              listener.lineStart();
+              interpolate(null, null, 1, listener);
+              listener.lineEnd();
+            }
+            if (visible) {
+              d3_geo_clipPolygon(segments, compare, clipStartInside, interpolate, listener);
+            }
+            listener.polygonEnd();
+          }
+          segments = polygon = ring = null;
+        }
+      };
+      function insidePolygon(p) {
+        var wn = 0, n = polygon.length, y = p[1];
+        for (var i = 0; i < n; ++i) {
+          for (var j = 1, v = polygon[i], m = v.length, a = v[0], b; j < m; ++j) {
+            b = v[j];
+            if (a[1] <= y) {
+              if (b[1] > y && d3_cross2d(a, b, p) > 0) ++wn;
+            } else {
+              if (b[1] <= y && d3_cross2d(a, b, p) < 0) --wn;
+            }
+            a = b;
+          }
+        }
+        return wn !== 0;
+      }
+      function interpolate(from, to, direction, listener) {
+        var a = 0, a1 = 0;
+        if (from == null || (a = corner(from, direction)) !== (a1 = corner(to, direction)) || comparePoints(from, to) < 0 ^ direction > 0) {
+          do {
+            listener.point(a === 0 || a === 3 ? x0 : x1, a > 1 ? y1 : y0);
+          } while ((a = (a + direction + 4) % 4) !== a1);
+        } else {
+          listener.point(to[0], to[1]);
+        }
+      }
+      function pointVisible(x, y) {
+        return x0 <= x && x <= x1 && y0 <= y && y <= y1;
+      }
+      function point(x, y) {
+        if (pointVisible(x, y)) listener.point(x, y);
+      }
+      var x__, y__, v__, x_, y_, v_, first, clean;
+      function lineStart() {
+        clip.point = linePoint;
+        if (polygon) polygon.push(ring = []);
+        first = true;
+        v_ = false;
+        x_ = y_ = NaN;
+      }
+      function lineEnd() {
+        if (segments) {
+          linePoint(x__, y__);
+          if (v__ && v_) bufferListener.rejoin();
+          segments.push(bufferListener.buffer());
+        }
+        clip.point = point;
+        if (v_) listener.lineEnd();
+      }
+      function linePoint(x, y) {
+        x = Math.max(-d3_geo_clipExtentMAX, Math.min(d3_geo_clipExtentMAX, x));
+        y = Math.max(-d3_geo_clipExtentMAX, Math.min(d3_geo_clipExtentMAX, y));
+        var v = pointVisible(x, y);
+        if (polygon) ring.push([ x, y ]);
+        if (first) {
+          x__ = x, y__ = y, v__ = v;
+          first = false;
+          if (v) {
+            listener.lineStart();
+            listener.point(x, y);
+          }
+        } else {
+          if (v && v_) listener.point(x, y); else {
+            var l = {
+              a: {
+                x: x_,
+                y: y_
+              },
+              b: {
+                x: x,
+                y: y
+              }
+            };
+            if (clipLine(l)) {
+              if (!v_) {
+                listener.lineStart();
+                listener.point(l.a.x, l.a.y);
+              }
+              listener.point(l.b.x, l.b.y);
+              if (!v) listener.lineEnd();
+              clean = false;
+            } else if (v) {
+              listener.lineStart();
+              listener.point(x, y);
+              clean = false;
+            }
+          }
+        }
+        x_ = x, y_ = y, v_ = v;
+      }
+      return clip;
+    };
+    function corner(p, direction) {
+      return abs(p[0] - x0) < ε ? direction > 0 ? 0 : 3 : abs(p[0] - x1) < ε ? direction > 0 ? 2 : 1 : abs(p[1] - y0) < ε ? direction > 0 ? 1 : 0 : direction > 0 ? 3 : 2;
+    }
+    function compare(a, b) {
+      return comparePoints(a.x, b.x);
+    }
+    function comparePoints(a, b) {
+      var ca = corner(a, 1), cb = corner(b, 1);
+      return ca !== cb ? ca - cb : ca === 0 ? b[1] - a[1] : ca === 1 ? a[0] - b[0] : ca === 2 ? a[1] - b[1] : b[0] - a[0];
+    }
+  }
+  function d3_geo_conic(projectAt) {
+    var φ0 = 0, φ1 = π / 3, m = d3_geo_projectionMutator(projectAt), p = m(φ0, φ1);
+    p.parallels = function(_) {
+      if (!arguments.length) return [ φ0 / π * 180, φ1 / π * 180 ];
+      return m(φ0 = _[0] * π / 180, φ1 = _[1] * π / 180);
+    };
+    return p;
+  }
+  function d3_geo_conicEqualArea(φ0, φ1) {
+    var sinφ0 = Math.sin(φ0), n = (sinφ0 + Math.sin(φ1)) / 2, C = 1 + sinφ0 * (2 * n - sinφ0), ρ0 = Math.sqrt(C) / n;
+    function forward(λ, φ) {
+      var ρ = Math.sqrt(C - 2 * n * Math.sin(φ)) / n;
+      return [ ρ * Math.sin(λ *= n), ρ0 - ρ * Math.cos(λ) ];
+    }
+    forward.invert = function(x, y) {
+      var ρ0_y = ρ0 - y;
+      return [ Math.atan2(x, ρ0_y) / n, d3_asin((C - (x * x + ρ0_y * ρ0_y) * n * n) / (2 * n)) ];
+    };
+    return forward;
+  }
+  (d3.geo.conicEqualArea = function() {
+    return d3_geo_conic(d3_geo_conicEqualArea);
+  }).raw = d3_geo_conicEqualArea;
+  d3.geo.albers = function() {
+    return d3.geo.conicEqualArea().rotate([ 96, 0 ]).center([ -.6, 38.7 ]).parallels([ 29.5, 45.5 ]).scale(1070);
+  };
+  d3.geo.albersUsa = function() {
+    var lower48 = d3.geo.albers();
+    var alaska = d3.geo.conicEqualArea().rotate([ 154, 0 ]).center([ -2, 58.5 ]).parallels([ 55, 65 ]);
+    var hawaii = d3.geo.conicEqualArea().rotate([ 157, 0 ]).center([ -3, 19.9 ]).parallels([ 8, 18 ]);
+    var point, pointStream = {
+      point: function(x, y) {
+        point = [ x, y ];
+      }
+    }, lower48Point, alaskaPoint, hawaiiPoint;
+    function albersUsa(coordinates) {
+      var x = coordinates[0], y = coordinates[1];
+      point = null;
+      (lower48Point(x, y), point) || (alaskaPoint(x, y), point) || hawaiiPoint(x, y);
+      return point;
+    }
+    albersUsa.invert = function(coordinates) {
+      var k = lower48.scale(), t = lower48.translate(), x = (coordinates[0] - t[0]) / k, y = (coordinates[1] - t[1]) / k;
+      return (y >= .12 && y < .234 && x >= -.425 && x < -.214 ? alaska : y >= .166 && y < .234 && x >= -.214 && x < -.115 ? hawaii : lower48).invert(coordinates);
+    };
+    albersUsa.stream = function(stream) {
+      var lower48Stream = lower48.stream(stream), alaskaStream = alaska.stream(stream), hawaiiStream = hawaii.stream(stream);
+      return {
+        point: function(x, y) {
+          lower48Stream.point(x, y);
+          alaskaStream.point(x, y);
+          hawaiiStream.point(x, y);
+        },
+        sphere: function() {
+          lower48Stream.sphere();
+          alaskaStream.sphere();
+          hawaiiStream.sphere();
+        },
+        lineStart: function() {
+          lower48Stream.lineStart();
+          alaskaStream.lineStart();
+          hawaiiStream.lineStart();
+        },
+        lineEnd: function() {
+          lower48Stream.lineEnd();
+          alaskaStream.lineEnd();
+          hawaiiStream.lineEnd();
+        },
+        polygonStart: function() {
+          lower48Stream.polygonStart();
+          alaskaStream.polygonStart();
+          hawaiiStream.polygonStart();
+        },
+        polygonEnd: function() {
+          lower48Stream.polygonEnd();
+          alaskaStream.polygonEnd();
+          hawaiiStream.polygonEnd();
+        }
+      };
+    };
+    albersUsa.precision = function(_) {
+      if (!arguments.length) return lower48.precision();
+      lower48.precision(_);
+      alaska.precision(_);
+      hawaii.precision(_);
+      return albersUsa;
+    };
+    albersUsa.scale = function(_) {
+      if (!arguments.length) return lower48.scale();
+      lower48.scale(_);
+      alaska.scale(_ * .35);
+      hawaii.scale(_);
+      return albersUsa.translate(lower48.translate());
+    };
+    albersUsa.translate = function(_) {
+      if (!arguments.length) return lower48.translate();
+      var k = lower48.scale(), x = +_[0], y = +_[1];
+      lower48Point = lower48.translate(_).clipExtent([ [ x - .455 * k, y - .238 * k ], [ x + .455 * k, y + .238 * k ] ]).stream(pointStream).point;
+      alaskaPoint = alaska.translate([ x - .307 * k, y + .201 * k ]).clipExtent([ [ x - .425 * k + ε, y + .12 * k + ε ], [ x - .214 * k - ε, y + .234 * k - ε ] ]).stream(pointStream).point;
+      hawaiiPoint = hawaii.translate([ x - .205 * k, y + .212 * k ]).clipExtent([ [ x - .214 * k + ε, y + .166 * k + ε ], [ x - .115 * k - ε, y + .234 * k - ε ] ]).stream(pointStream).point;
+      return albersUsa;
+    };
+    return albersUsa.scale(1070);
+  };
+  var d3_geo_pathAreaSum, d3_geo_pathAreaPolygon, d3_geo_pathArea = {
+    point: d3_noop,
+    lineStart: d3_noop,
+    lineEnd: d3_noop,
+    polygonStart: function() {
+      d3_geo_pathAreaPolygon = 0;
+      d3_geo_pathArea.lineStart = d3_geo_pathAreaRingStart;
+    },
+    polygonEnd: function() {
+      d3_geo_pathArea.lineStart = d3_geo_pathArea.lineEnd = d3_geo_pathArea.point = d3_noop;
+      d3_geo_pathAreaSum += abs(d3_geo_pathAreaPolygon / 2);
+    }
+  };
+  function d3_geo_pathAreaRingStart() {
+    var x00, y00, x0, y0;
+    d3_geo_pathArea.point = function(x, y) {
+      d3_geo_pathArea.point = nextPoint;
+      x00 = x0 = x, y00 = y0 = y;
+    };
+    function nextPoint(x, y) {
+      d3_geo_pathAreaPolygon += y0 * x - x0 * y;
+      x0 = x, y0 = y;
+    }
+    d3_geo_pathArea.lineEnd = function() {
+      nextPoint(x00, y00);
+    };
+  }
+  var d3_geo_pathBoundsX0, d3_geo_pathBoundsY0, d3_geo_pathBoundsX1, d3_geo_pathBoundsY1;
+  var d3_geo_pathBounds = {
+    point: d3_geo_pathBoundsPoint,
+    lineStart: d3_noop,
+    lineEnd: d3_noop,
+    polygonStart: d3_noop,
+    polygonEnd: d3_noop
+  };
+  function d3_geo_pathBoundsPoint(x, y) {
+    if (x < d3_geo_pathBoundsX0) d3_geo_pathBoundsX0 = x;
+    if (x > d3_geo_pathBoundsX1) d3_geo_pathBoundsX1 = x;
+    if (y < d3_geo_pathBoundsY0) d3_geo_pathBoundsY0 = y;
+    if (y > d3_geo_pathBoundsY1) d3_geo_pathBoundsY1 = y;
+  }
+  function d3_geo_pathBuffer() {
+    var pointCircle = d3_geo_pathBufferCircle(4.5), buffer = [];
+    var stream = {
+      point: point,
+      lineStart: function() {
+        stream.point = pointLineStart;
+      },
+      lineEnd: lineEnd,
+      polygonStart: function() {
+        stream.lineEnd = lineEndPolygon;
+      },
+      polygonEnd: function() {
+        stream.lineEnd = lineEnd;
+        stream.point = point;
+      },
+      pointRadius: function(_) {
+        pointCircle = d3_geo_pathBufferCircle(_);
+        return stream;
+      },
+      result: function() {
+        if (buffer.length) {
+          var result = buffer.join("");
+          buffer = [];
+          return result;
+        }
+      }
+    };
+    function point(x, y) {
+      buffer.push("M", x, ",", y, pointCircle);
+    }
+    function pointLineStart(x, y) {
+      buffer.push("M", x, ",", y);
+      stream.point = pointLine;
+    }
+    function pointLine(x, y) {
+      buffer.push("L", x, ",", y);
+    }
+    function lineEnd() {
+      stream.point = point;
+    }
+    function lineEndPolygon() {
+      buffer.push("Z");
+    }
+    return stream;
+  }
+  function d3_geo_pathBufferCircle(radius) {
+    return "m0," + radius + "a" + radius + "," + radius + " 0 1,1 0," + -2 * radius + "a" + radius + "," + radius + " 0 1,1 0," + 2 * radius + "z";
+  }
+  var d3_geo_pathCentroid = {
+    point: d3_geo_pathCentroidPoint,
+    lineStart: d3_geo_pathCentroidLineStart,
+    lineEnd: d3_geo_pathCentroidLineEnd,
+    polygonStart: function() {
+      d3_geo_pathCentroid.lineStart = d3_geo_pathCentroidRingStart;
+    },
+    polygonEnd: function() {
+      d3_geo_pathCentroid.point = d3_geo_pathCentroidPoint;
+      d3_geo_pathCentroid.lineStart = d3_geo_pathCentroidLineStart;
+      d3_geo_pathCentroid.lineEnd = d3_geo_pathCentroidLineEnd;
+    }
+  };
+  function d3_geo_pathCentroidPoint(x, y) {
+    d3_geo_centroidX0 += x;
+    d3_geo_centroidY0 += y;
+    ++d3_geo_centroidZ0;
+  }
+  function d3_geo_pathCentroidLineStart() {
+    var x0, y0;
+    d3_geo_pathCentroid.point = function(x, y) {
+      d3_geo_pathCentroid.point = nextPoint;
+      d3_geo_pathCentroidPoint(x0 = x, y0 = y);
+    };
+    function nextPoint(x, y) {
+      var dx = x - x0, dy = y - y0, z = Math.sqrt(dx * dx + dy * dy);
+      d3_geo_centroidX1 += z * (x0 + x) / 2;
+      d3_geo_centroidY1 += z * (y0 + y) / 2;
+      d3_geo_centroidZ1 += z;
+      d3_geo_pathCentroidPoint(x0 = x, y0 = y);
+    }
+  }
+  function d3_geo_pathCentroidLineEnd() {
+    d3_geo_pathCentroid.point = d3_geo_pathCentroidPoint;
+  }
+  function d3_geo_pathCentroidRingStart() {
+    var x00, y00, x0, y0;
+    d3_geo_pathCentroid.point = function(x, y) {
+      d3_geo_pathCentroid.point = nextPoint;
+      d3_geo_pathCentroidPoint(x00 = x0 = x, y00 = y0 = y);
+    };
+    function nextPoint(x, y) {
+      var dx = x - x0, dy = y - y0, z = Math.sqrt(dx * dx + dy * dy);
+      d3_geo_centroidX1 += z * (x0 + x) / 2;
+      d3_geo_centroidY1 += z * (y0 + y) / 2;
+      d3_geo_centroidZ1 += z;
+      z = y0 * x - x0 * y;
+      d3_geo_centroidX2 += z * (x0 + x);
+      d3_geo_centroidY2 += z * (y0 + y);
+      d3_geo_centroidZ2 += z * 3;
+      d3_geo_pathCentroidPoint(x0 = x, y0 = y);
+    }
+    d3_geo_pathCentroid.lineEnd = function() {
+      nextPoint(x00, y00);
+    };
+  }
+  function d3_geo_pathContext(context) {
+    var pointRadius = 4.5;
+    var stream = {
+      point: point,
+      lineStart: function() {
+        stream.point = pointLineStart;
+      },
+      lineEnd: lineEnd,
+      polygonStart: function() {
+        stream.lineEnd = lineEndPolygon;
+      },
+      polygonEnd: function() {
+        stream.lineEnd = lineEnd;
+        stream.point = point;
+      },
+      pointRadius: function(_) {
+        pointRadius = _;
+        return stream;
+      },
+      result: d3_noop
+    };
+    function point(x, y) {
+      context.moveTo(x + pointRadius, y);
+      context.arc(x, y, pointRadius, 0, τ);
+    }
+    function pointLineStart(x, y) {
+      context.moveTo(x, y);
+      stream.point = pointLine;
+    }
+    function pointLine(x, y) {
+      context.lineTo(x, y);
+    }
+    function lineEnd() {
+      stream.point = point;
+    }
+    function lineEndPolygon() {
+      context.closePath();
+    }
+    return stream;
+  }
+  function d3_geo_resample(project) {
+    var δ2 = .5, cosMinDistance = Math.cos(30 * d3_radians), maxDepth = 16;
+    function resample(stream) {
+      return (maxDepth ? resampleRecursive : resampleNone)(stream);
+    }
+    function resampleNone(stream) {
+      return d3_geo_transformPoint(stream, function(x, y) {
+        x = project(x, y);
+        stream.point(x[0], x[1]);
+      });
+    }
+    function resampleRecursive(stream) {
+      var λ00, φ00, x00, y00, a00, b00, c00, λ0, x0, y0, a0, b0, c0;
+      var resample = {
+        point: point,
+        lineStart: lineStart,
+        lineEnd: lineEnd,
+        polygonStart: function() {
+          stream.polygonStart();
+          resample.lineStart = ringStart;
+        },
+        polygonEnd: function() {
+          stream.polygonEnd();
+          resample.lineStart = lineStart;
+        }
+      };
+      function point(x, y) {
+        x = project(x, y);
+        stream.point(x[0], x[1]);
+      }
+      function lineStart() {
+        x0 = NaN;
+        resample.point = linePoint;
+        stream.lineStart();
+      }
+      function linePoint(λ, φ) {
+        var c = d3_geo_cartesian([ λ, φ ]), p = project(λ, φ);
+        resampleLineTo(x0, y0, λ0, a0, b0, c0, x0 = p[0], y0 = p[1], λ0 = λ, a0 = c[0], b0 = c[1], c0 = c[2], maxDepth, stream);
+        stream.point(x0, y0);
+      }
+      function lineEnd() {
+        resample.point = point;
+        stream.lineEnd();
+      }
+      function ringStart() {
+        lineStart();
+        resample.point = ringPoint;
+        resample.lineEnd = ringEnd;
+      }
+      function ringPoint(λ, φ) {
+        linePoint(λ00 = λ, φ00 = φ), x00 = x0, y00 = y0, a00 = a0, b00 = b0, c00 = c0;
+        resample.point = linePoint;
+      }
+      function ringEnd() {
+        resampleLineTo(x0, y0, λ0, a0, b0, c0, x00, y00, λ00, a00, b00, c00, maxDepth, stream);
+        resample.lineEnd = lineEnd;
+        lineEnd();
+      }
+      return resample;
+    }
+    function resampleLineTo(x0, y0, λ0, a0, b0, c0, x1, y1, λ1, a1, b1, c1, depth, stream) {
+      var dx = x1 - x0, dy = y1 - y0, d2 = dx * dx + dy * dy;
+      if (d2 > 4 * δ2 && depth--) {
+        var a = a0 + a1, b = b0 + b1, c = c0 + c1, m = Math.sqrt(a * a + b * b + c * c), φ2 = Math.asin(c /= m), λ2 = abs(abs(c) - 1) < ε || abs(λ0 - λ1) < ε ? (λ0 + λ1) / 2 : Math.atan2(b, a), p = project(λ2, φ2), x2 = p[0], y2 = p[1], dx2 = x2 - x0, dy2 = y2 - y0, dz = dy * dx2 - dx * dy2;
+        if (dz * dz / d2 > δ2 || abs((dx * dx2 + dy * dy2) / d2 - .5) > .3 || a0 * a1 + b0 * b1 + c0 * c1 < cosMinDistance) {
+          resampleLineTo(x0, y0, λ0, a0, b0, c0, x2, y2, λ2, a /= m, b /= m, c, depth, stream);
+          stream.point(x2, y2);
+          resampleLineTo(x2, y2, λ2, a, b, c, x1, y1, λ1, a1, b1, c1, depth, stream);
+        }
+      }
+    }
+    resample.precision = function(_) {
+      if (!arguments.length) return Math.sqrt(δ2);
+      maxDepth = (δ2 = _ * _) > 0 && 16;
+      return resample;
+    };
+    return resample;
+  }
+  d3.geo.path = function() {
+    var pointRadius = 4.5, projection, context, projectStream, contextStream, cacheStream;
+    function path(object) {
+      if (object) {
+        if (typeof pointRadius === "function") contextStream.pointRadius(+pointRadius.apply(this, arguments));
+        if (!cacheStream || !cacheStream.valid) cacheStream = projectStream(contextStream);
+        d3.geo.stream(object, cacheStream);
+      }
+      return contextStream.result();
+    }
+    path.area = function(object) {
+      d3_geo_pathAreaSum = 0;
+      d3.geo.stream(object, projectStream(d3_geo_pathArea));
+      return d3_geo_pathAreaSum;
+    };
+    path.centroid = function(object) {
+      d3_geo_centroidX0 = d3_geo_centroidY0 = d3_geo_centroidZ0 = d3_geo_centroidX1 = d3_geo_centroidY1 = d3_geo_centroidZ1 = d3_geo_centroidX2 = d3_geo_centroidY2 = d3_geo_centroidZ2 = 0;
+      d3.geo.stream(object, projectStream(d3_geo_pathCentroid));
+      return d3_geo_centroidZ2 ? [ d3_geo_centroidX2 / d3_geo_centroidZ2, d3_geo_centroidY2 / d3_geo_centroidZ2 ] : d3_geo_centroidZ1 ? [ d3_geo_centroidX1 / d3_geo_centroidZ1, d3_geo_centroidY1 / d3_geo_centroidZ1 ] : d3_geo_centroidZ0 ? [ d3_geo_centroidX0 / d3_geo_centroidZ0, d3_geo_centroidY0 / d3_geo_centroidZ0 ] : [ NaN, NaN ];
+    };
+    path.bounds = function(object) {
+      d3_geo_pathBoundsX1 = d3_geo_pathBoundsY1 = -(d3_geo_pathBoundsX0 = d3_geo_pathBoundsY0 = Infinity);
+      d3.geo.stream(object, projectStream(d3_geo_pathBounds));
+      return [ [ d3_geo_pathBoundsX0, d3_geo_pathBoundsY0 ], [ d3_geo_pathBoundsX1, d3_geo_pathBoundsY1 ] ];
+    };
+    path.projection = function(_) {
+      if (!arguments.length) return projection;
+      projectStream = (projection = _) ? _.stream || d3_geo_pathProjectStream(_) : d3_identity;
+      return reset();
+    };
+    path.context = function(_) {
+      if (!arguments.length) return context;
+      contextStream = (context = _) == null ? new d3_geo_pathBuffer() : new d3_geo_pathContext(_);
+      if (typeof pointRadius !== "function") contextStream.pointRadius(pointRadius);
+      return reset();
+    };
+    path.pointRadius = function(_) {
+      if (!arguments.length) return pointRadius;
+      pointRadius = typeof _ === "function" ? _ : (contextStream.pointRadius(+_), +_);
+      return path;
+    };
+    function reset() {
+      cacheStream = null;
+      return path;
+    }
+    return path.projection(d3.geo.albersUsa()).context(null);
+  };
+  function d3_geo_pathProjectStream(project) {
+    var resample = d3_geo_resample(function(x, y) {
+      return project([ x * d3_degrees, y * d3_degrees ]);
+    });
+    return function(stream) {
+      return d3_geo_projectionRadians(resample(stream));
+    };
+  }
+  d3.geo.transform = function(methods) {
+    return {
+      stream: function(stream) {
+        var transform = new d3_geo_transform(stream);
+        for (var k in methods) transform[k] = methods[k];
+        return transform;
+      }
+    };
+  };
+  function d3_geo_transform(stream) {
+    this.stream = stream;
+  }
+  d3_geo_transform.prototype = {
+    point: function(x, y) {
+      this.stream.point(x, y);
+    },
+    sphere: function() {
+      this.stream.sphere();
+    },
+    lineStart: function() {
+      this.stream.lineStart();
+    },
+    lineEnd: function() {
+      this.stream.lineEnd();
+    },
+    polygonStart: function() {
+      this.stream.polygonStart();
+    },
+    polygonEnd: function() {
+      this.stream.polygonEnd();
+    }
+  };
+  function d3_geo_transformPoint(stream, point) {
+    return {
+      point: point,
+      sphere: function() {
+        stream.sphere();
+      },
+      lineStart: function() {
+        stream.lineStart();
+      },
+      lineEnd: function() {
+        stream.lineEnd();
+      },
+      polygonStart: function() {
+        stream.polygonStart();
+      },
+      polygonEnd: function() {
+        stream.polygonEnd();
+      }
+    };
+  }
+  d3.geo.projection = d3_geo_projection;
+  d3.geo.projectionMutator = d3_geo_projectionMutator;
+  function d3_geo_projection(project) {
+    return d3_geo_projectionMutator(function() {
+      return project;
+    })();
+  }
+  function d3_geo_projectionMutator(projectAt) {
+    var project, rotate, projectRotate, projectResample = d3_geo_resample(function(x, y) {
+      x = project(x, y);
+      return [ x[0] * k + δx, δy - x[1] * k ];
+    }), k = 150, x = 480, y = 250, λ = 0, φ = 0, δλ = 0, δφ = 0, δγ = 0, δx, δy, preclip = d3_geo_clipAntimeridian, postclip = d3_identity, clipAngle = null, clipExtent = null, stream;
+    function projection(point) {
+      point = projectRotate(point[0] * d3_radians, point[1] * d3_radians);
+      return [ point[0] * k + δx, δy - point[1] * k ];
+    }
+    function invert(point) {
+      point = projectRotate.invert((point[0] - δx) / k, (δy - point[1]) / k);
+      return point && [ point[0] * d3_degrees, point[1] * d3_degrees ];
+    }
+    projection.stream = function(output) {
+      if (stream) stream.valid = false;
+      stream = d3_geo_projectionRadians(preclip(rotate, projectResample(postclip(output))));
+      stream.valid = true;
+      return stream;
+    };
+    projection.clipAngle = function(_) {
+      if (!arguments.length) return clipAngle;
+      preclip = _ == null ? (clipAngle = _, d3_geo_clipAntimeridian) : d3_geo_clipCircle((clipAngle = +_) * d3_radians);
+      return invalidate();
+    };
+    projection.clipExtent = function(_) {
+      if (!arguments.length) return clipExtent;
+      clipExtent = _;
+      postclip = _ ? d3_geo_clipExtent(_[0][0], _[0][1], _[1][0], _[1][1]) : d3_identity;
+      return invalidate();
+    };
+    projection.scale = function(_) {
+      if (!arguments.length) return k;
+      k = +_;
+      return reset();
+    };
+    projection.translate = function(_) {
+      if (!arguments.length) return [ x, y ];
+      x = +_[0];
+      y = +_[1];
+      return reset();
+    };
+    projection.center = function(_) {
+      if (!arguments.length) return [ λ * d3_degrees, φ * d3_degrees ];
+      λ = _[0] % 360 * d3_radians;
+      φ = _[1] % 360 * d3_radians;
+      return reset();
+    };
+    projection.rotate = function(_) {
+      if (!arguments.length) return [ δλ * d3_degrees, δφ * d3_degrees, δγ * d3_degrees ];
+      δλ = _[0] % 360 * d3_radians;
+      δφ = _[1] % 360 * d3_radians;
+      δγ = _.length > 2 ? _[2] % 360 * d3_radians : 0;
+      return reset();
+    };
+    d3.rebind(projection, projectResample, "precision");
+    function reset() {
+      projectRotate = d3_geo_compose(rotate = d3_geo_rotation(δλ, δφ, δγ), project);
+      var center = project(λ, φ);
+      δx = x - center[0] * k;
+      δy = y + center[1] * k;
+      return invalidate();
+    }
+    function invalidate() {
+      if (stream) stream.valid = false, stream = null;
+      return projection;
+    }
+    return function() {
+      project = projectAt.apply(this, arguments);
+      projection.invert = project.invert && invert;
+      return reset();
+    };
+  }
+  function d3_geo_projectionRadians(stream) {
+    return d3_geo_transformPoint(stream, function(x, y) {
+      stream.point(x * d3_radians, y * d3_radians);
+    });
+  }
+  function d3_geo_equirectangular(λ, φ) {
+    return [ λ, φ ];
+  }
+  (d3.geo.equirectangular = function() {
+    return d3_geo_projection(d3_geo_equirectangular);
+  }).raw = d3_geo_equirectangular.invert = d3_geo_equirectangular;
+  d3.geo.rotation = function(rotate) {
+    rotate = d3_geo_rotation(rotate[0] % 360 * d3_radians, rotate[1] * d3_radians, rotate.length > 2 ? rotate[2] * d3_radians : 0);
+    function forward(coordinates) {
+      coordinates = rotate(coordinates[0] * d3_radians, coordinates[1] * d3_radians);
+      return coordinates[0] *= d3_degrees, coordinates[1] *= d3_degrees, coordinates;
+    }
+    forward.invert = function(coordinates) {
+      coordinates = rotate.invert(coordinates[0] * d3_radians, coordinates[1] * d3_radians);
+      return coordinates[0] *= d3_degrees, coordinates[1] *= d3_degrees, coordinates;
+    };
+    return forward;
+  };
+  function d3_geo_identityRotation(λ, φ) {
+    return [ λ > π ? λ - τ : λ < -π ? λ + τ : λ, φ ];
+  }
+  d3_geo_identityRotation.invert = d3_geo_equirectangular;
+  function d3_geo_rotation(δλ, δφ, δγ) {
+    return δλ ? δφ || δγ ? d3_geo_compose(d3_geo_rotationλ(δλ), d3_geo_rotationφγ(δφ, δγ)) : d3_geo_rotationλ(δλ) : δφ || δγ ? d3_geo_rotationφγ(δφ, δγ) : d3_geo_identityRotation;
+  }
+  function d3_geo_forwardRotationλ(δλ) {
+    return function(λ, φ) {
+      return λ += δλ, [ λ > π ? λ - τ : λ < -π ? λ + τ : λ, φ ];
+    };
+  }
+  function d3_geo_rotationλ(δλ) {
+    var rotation = d3_geo_forwardRotationλ(δλ);
+    rotation.invert = d3_geo_forwardRotationλ(-δλ);
+    return rotation;
+  }
+  function d3_geo_rotationφγ(δφ, δγ) {
+    var cosδφ = Math.cos(δφ), sinδφ = Math.sin(δφ), cosδγ = Math.cos(δγ), sinδγ = Math.sin(δγ);
+    function rotation(λ, φ) {
+      var cosφ = Math.cos(φ), x = Math.cos(λ) * cosφ, y = Math.sin(λ) * cosφ, z = Math.sin(φ), k = z * cosδφ + x * sinδφ;
+      return [ Math.atan2(y * cosδγ - k * sinδγ, x * cosδφ - z * sinδφ), d3_asin(k * cosδγ + y * sinδγ) ];
+    }
+    rotation.invert = function(λ, φ) {
+      var cosφ = Math.cos(φ), x = Math.cos(λ) * cosφ, y = Math.sin(λ) * cosφ, z = Math.sin(φ), k = z * cosδγ - y * sinδγ;
+      return [ Math.atan2(y * cosδγ + z * sinδγ, x * cosδφ + k * sinδφ), d3_asin(k * cosδφ - x * sinδφ) ];
+    };
+    return rotation;
+  }
+  d3.geo.circle = function() {
+    var origin = [ 0, 0 ], angle, precision = 6, interpolate;
+    function circle() {
+      var center = typeof origin === "function" ? origin.apply(this, arguments) : origin, rotate = d3_geo_rotation(-center[0] * d3_radians, -center[1] * d3_radians, 0).invert, ring = [];
+      interpolate(null, null, 1, {
+        point: function(x, y) {
+          ring.push(x = rotate(x, y));
+          x[0] *= d3_degrees, x[1] *= d3_degrees;
+        }
+      });
+      return {
+        type: "Polygon",
+        coordinates: [ ring ]
+      };
+    }
+    circle.origin = function(x) {
+      if (!arguments.length) return origin;
+      origin = x;
+      return circle;
+    };
+    circle.angle = function(x) {
+      if (!arguments.length) return angle;
+      interpolate = d3_geo_circleInterpolate((angle = +x) * d3_radians, precision * d3_radians);
+      return circle;
+    };
+    circle.precision = function(_) {
+      if (!arguments.length) return precision;
+      interpolate = d3_geo_circleInterpolate(angle * d3_radians, (precision = +_) * d3_radians);
+      return circle;
+    };
+    return circle.angle(90);
+  };
+  function d3_geo_circleInterpolate(radius, precision) {
+    var cr = Math.cos(radius), sr = Math.sin(radius);
+    return function(from, to, direction, listener) {
+      var step = direction * precision;
+      if (from != null) {
+        from = d3_geo_circleAngle(cr, from);
+        to = d3_geo_circleAngle(cr, to);
+        if (direction > 0 ? from < to : from > to) from += direction * τ;
+      } else {
+        from = radius + direction * τ;
+        to = radius - .5 * step;
+      }
+      for (var point, t = from; direction > 0 ? t > to : t < to; t -= step) {
+        listener.point((point = d3_geo_spherical([ cr, -sr * Math.cos(t), -sr * Math.sin(t) ]))[0], point[1]);
+      }
+    };
+  }
+  function d3_geo_circleAngle(cr, point) {
+    var a = d3_geo_cartesian(point);
+    a[0] -= cr;
+    d3_geo_cartesianNormalize(a);
+    var angle = d3_acos(-a[1]);
+    return ((-a[2] < 0 ? -angle : angle) + 2 * Math.PI - ε) % (2 * Math.PI);
+  }
+  d3.geo.distance = function(a, b) {
+    var Δλ = (b[0] - a[0]) * d3_radians, φ0 = a[1] * d3_radians, φ1 = b[1] * d3_radians, sinΔλ = Math.sin(Δλ), cosΔλ = Math.cos(Δλ), sinφ0 = Math.sin(φ0), cosφ0 = Math.cos(φ0), sinφ1 = Math.sin(φ1), cosφ1 = Math.cos(φ1), t;
+    return Math.atan2(Math.sqrt((t = cosφ1 * sinΔλ) * t + (t = cosφ0 * sinφ1 - sinφ0 * cosφ1 * cosΔλ) * t), sinφ0 * sinφ1 + cosφ0 * cosφ1 * cosΔλ);
+  };
+  d3.geo.graticule = function() {
+    var x1, x0, X1, X0, y1, y0, Y1, Y0, dx = 10, dy = dx, DX = 90, DY = 360, x, y, X, Y, precision = 2.5;
+    function graticule() {
+      return {
+        type: "MultiLineString",
+        coordinates: lines()
+      };
+    }
+    function lines() {
+      return d3.range(Math.ceil(X0 / DX) * DX, X1, DX).map(X).concat(d3.range(Math.ceil(Y0 / DY) * DY, Y1, DY).map(Y)).concat(d3.range(Math.ceil(x0 / dx) * dx, x1, dx).filter(function(x) {
+        return abs(x % DX) > ε;
+      }).map(x)).concat(d3.range(Math.ceil(y0 / dy) * dy, y1, dy).filter(function(y) {
+        return abs(y % DY) > ε;
+      }).map(y));
+    }
+    graticule.lines = function() {
+      return lines().map(function(coordinates) {
+        return {
+          type: "LineString",
+          coordinates: coordinates
+        };
+      });
+    };
+    graticule.outline = function() {
+      return {
+        type: "Polygon",
+        coordinates: [ X(X0).concat(Y(Y1).slice(1), X(X1).reverse().slice(1), Y(Y0).reverse().slice(1)) ]
+      };
+    };
+    graticule.extent = function(_) {
+      if (!arguments.length) return graticule.minorExtent();
+      return graticule.majorExtent(_).minorExtent(_);
+    };
+    graticule.majorExtent = function(_) {
+      if (!arguments.length) return [ [ X0, Y0 ], [ X1, Y1 ] ];
+      X0 = +_[0][0], X1 = +_[1][0];
+      Y0 = +_[0][1], Y1 = +_[1][1];
+      if (X0 > X1) _ = X0, X0 = X1, X1 = _;
+      if (Y0 > Y1) _ = Y0, Y0 = Y1, Y1 = _;
+      return graticule.precision(precision);
+    };
+    graticule.minorExtent = function(_) {
+      if (!arguments.length) return [ [ x0, y0 ], [ x1, y1 ] ];
+      x0 = +_[0][0], x1 = +_[1][0];
+      y0 = +_[0][1], y1 = +_[1][1];
+      if (x0 > x1) _ = x0, x0 = x1, x1 = _;
+      if (y0 > y1) _ = y0, y0 = y1, y1 = _;
+      return graticule.precision(precision);
+    };
+    graticule.step = function(_) {
+      if (!arguments.length) return graticule.minorStep();
+      return graticule.majorStep(_).minorStep(_);
+    };
+    graticule.majorStep = function(_) {
+      if (!arguments.length) return [ DX, DY ];
+      DX = +_[0], DY = +_[1];
+      return graticule;
+    };
+    graticule.minorStep = function(_) {
+      if (!arguments.length) return [ dx, dy ];
+      dx = +_[0], dy = +_[1];
+      return graticule;
+    };
+    graticule.precision = function(_) {
+      if (!arguments.length) return precision;
+      precision = +_;
+      x = d3_geo_graticuleX(y0, y1, 90);
+      y = d3_geo_graticuleY(x0, x1, precision);
+      X = d3_geo_graticuleX(Y0, Y1, 90);
+      Y = d3_geo_graticuleY(X0, X1, precision);
+      return graticule;
+    };
+    return graticule.majorExtent([ [ -180, -90 + ε ], [ 180, 90 - ε ] ]).minorExtent([ [ -180, -80 - ε ], [ 180, 80 + ε ] ]);
+  };
+  function d3_geo_graticuleX(y0, y1, dy) {
+    var y = d3.range(y0, y1 - ε, dy).concat(y1);
+    return function(x) {
+      return y.map(function(y) {
+        return [ x, y ];
+      });
+    };
+  }
+  function d3_geo_graticuleY(x0, x1, dx) {
+    var x = d3.range(x0, x1 - ε, dx).concat(x1);
+    return function(y) {
+      return x.map(function(x) {
+        return [ x, y ];
+      });
+    };
+  }
+  function d3_source(d) {
+    return d.source;
+  }
+  function d3_target(d) {
+    return d.target;
+  }
+  d3.geo.greatArc = function() {
+    var source = d3_source, source_, target = d3_target, target_;
+    function greatArc() {
+      return {
+        type: "LineString",
+        coordinates: [ source_ || source.apply(this, arguments), target_ || target.apply(this, arguments) ]
+      };
+    }
+    greatArc.distance = function() {
+      return d3.geo.distance(source_ || source.apply(this, arguments), target_ || target.apply(this, arguments));
+    };
+    greatArc.source = function(_) {
+      if (!arguments.length) return source;
+      source = _, source_ = typeof _ === "function" ? null : _;
+      return greatArc;
+    };
+    greatArc.target = function(_) {
+      if (!arguments.length) return target;
+      target = _, target_ = typeof _ === "function" ? null : _;
+      return greatArc;
+    };
+    greatArc.precision = function() {
+      return arguments.length ? greatArc : 0;
+    };
+    return greatArc;
+  };
+  d3.geo.interpolate = function(source, target) {
+    return d3_geo_interpolate(source[0] * d3_radians, source[1] * d3_radians, target[0] * d3_radians, target[1] * d3_radians);
+  };
+  function d3_geo_interpolate(x0, y0, x1, y1) {
+    var cy0 = Math.cos(y0), sy0 = Math.sin(y0), cy1 = Math.cos(y1), sy1 = Math.sin(y1), kx0 = cy0 * Math.cos(x0), ky0 = cy0 * Math.sin(x0), kx1 = cy1 * Math.cos(x1), ky1 = cy1 * Math.sin(x1), d = 2 * Math.asin(Math.sqrt(d3_haversin(y1 - y0) + cy0 * cy1 * d3_haversin(x1 - x0))), k = 1 / Math.sin(d);
+    var interpolate = d ? function(t) {
+      var B = Math.sin(t *= d) * k, A = Math.sin(d - t) * k, x = A * kx0 + B * kx1, y = A * ky0 + B * ky1, z = A * sy0 + B * sy1;
+      return [ Math.atan2(y, x) * d3_degrees, Math.atan2(z, Math.sqrt(x * x + y * y)) * d3_degrees ];
+    } : function() {
+      return [ x0 * d3_degrees, y0 * d3_degrees ];
+    };
+    interpolate.distance = d;
+    return interpolate;
+  }
+  d3.geo.length = function(object) {
+    d3_geo_lengthSum = 0;
+    d3.geo.stream(object, d3_geo_length);
+    return d3_geo_lengthSum;
+  };
+  var d3_geo_lengthSum;
+  var d3_geo_length = {
+    sphere: d3_noop,
+    point: d3_noop,
+    lineStart: d3_geo_lengthLineStart,
+    lineEnd: d3_noop,
+    polygonStart: d3_noop,
+    polygonEnd: d3_noop
+  };
+  function d3_geo_lengthLineStart() {
+    var λ0, sinφ0, cosφ0;
+    d3_geo_length.point = function(λ, φ) {
+      λ0 = λ * d3_radians, sinφ0 = Math.sin(φ *= d3_radians), cosφ0 = Math.cos(φ);
+      d3_geo_length.point = nextPoint;
+    };
+    d3_geo_length.lineEnd = function() {
+      d3_geo_length.point = d3_geo_length.lineEnd = d3_noop;
+    };
+    function nextPoint(λ, φ) {
+      var sinφ = Math.sin(φ *= d3_radians), cosφ = Math.cos(φ), t = abs((λ *= d3_radians) - λ0), cosΔλ = Math.cos(t);
+      d3_geo_lengthSum += Math.atan2(Math.sqrt((t = cosφ * Math.sin(t)) * t + (t = cosφ0 * sinφ - sinφ0 * cosφ * cosΔλ) * t), sinφ0 * sinφ + cosφ0 * cosφ * cosΔλ);
+      λ0 = λ, sinφ0 = sinφ, cosφ0 = cosφ;
+    }
+  }
+  function d3_geo_azimuthal(scale, angle) {
+    function azimuthal(λ, φ) {
+      var cosλ = Math.cos(λ), cosφ = Math.cos(φ), k = scale(cosλ * cosφ);
+      return [ k * cosφ * Math.sin(λ), k * Math.sin(φ) ];
+    }
+    azimuthal.invert = function(x, y) {
+      var ρ = Math.sqrt(x * x + y * y), c = angle(ρ), sinc = Math.sin(c), cosc = Math.cos(c);
+      return [ Math.atan2(x * sinc, ρ * cosc), Math.asin(ρ && y * sinc / ρ) ];
+    };
+    return azimuthal;
+  }
+  var d3_geo_azimuthalEqualArea = d3_geo_azimuthal(function(cosλcosφ) {
+    return Math.sqrt(2 / (1 + cosλcosφ));
+  }, function(ρ) {
+    return 2 * Math.asin(ρ / 2);
+  });
+  (d3.geo.azimuthalEqualArea = function() {
+    return d3_geo_projection(d3_geo_azimuthalEqualArea);
+  }).raw = d3_geo_azimuthalEqualArea;
+  var d3_geo_azimuthalEquidistant = d3_geo_azimuthal(function(cosλcosφ) {
+    var c = Math.acos(cosλcosφ);
+    return c && c / Math.sin(c);
+  }, d3_identity);
+  (d3.geo.azimuthalEquidistant = function() {
+    return d3_geo_projection(d3_geo_azimuthalEquidistant);
+  }).raw = d3_geo_azimuthalEquidistant;
+  function d3_geo_conicConformal(φ0, φ1) {
+    var cosφ0 = Math.cos(φ0), t = function(φ) {
+      return Math.tan(π / 4 + φ / 2);
+    }, n = φ0 === φ1 ? Math.sin(φ0) : Math.log(cosφ0 / Math.cos(φ1)) / Math.log(t(φ1) / t(φ0)), F = cosφ0 * Math.pow(t(φ0), n) / n;
+    if (!n) return d3_geo_mercator;
+    function forward(λ, φ) {
+      if (F > 0) {
+        if (φ < -halfπ + ε) φ = -halfπ + ε;
+      } else {
+        if (φ > halfπ - ε) φ = halfπ - ε;
+      }
+      var ρ = F / Math.pow(t(φ), n);
+      return [ ρ * Math.sin(n * λ), F - ρ * Math.cos(n * λ) ];
+    }
+    forward.invert = function(x, y) {
+      var ρ0_y = F - y, ρ = d3_sgn(n) * Math.sqrt(x * x + ρ0_y * ρ0_y);
+      return [ Math.atan2(x, ρ0_y) / n, 2 * Math.atan(Math.pow(F / ρ, 1 / n)) - halfπ ];
+    };
+    return forward;
+  }
+  (d3.geo.conicConformal = function() {
+    return d3_geo_conic(d3_geo_conicConformal);
+  }).raw = d3_geo_conicConformal;
+  function d3_geo_conicEquidistant(φ0, φ1) {
+    var cosφ0 = Math.cos(φ0), n = φ0 === φ1 ? Math.sin(φ0) : (cosφ0 - Math.cos(φ1)) / (φ1 - φ0), G = cosφ0 / n + φ0;
+    if (abs(n) < ε) return d3_geo_equirectangular;
+    function forward(λ, φ) {
+      var ρ = G - φ;
+      return [ ρ * Math.sin(n * λ), G - ρ * Math.cos(n * λ) ];
+    }
+    forward.invert = function(x, y) {
+      var ρ0_y = G - y;
+      return [ Math.atan2(x, ρ0_y) / n, G - d3_sgn(n) * Math.sqrt(x * x + ρ0_y * ρ0_y) ];
+    };
+    return forward;
+  }
+  (d3.geo.conicEquidistant = function() {
+    return d3_geo_conic(d3_geo_conicEquidistant);
+  }).raw = d3_geo_conicEquidistant;
+  var d3_geo_gnomonic = d3_geo_azimuthal(function(cosλcosφ) {
+    return 1 / cosλcosφ;
+  }, Math.atan);
+  (d3.geo.gnomonic = function() {
+    return d3_geo_projection(d3_geo_gnomonic);
+  }).raw = d3_geo_gnomonic;
+  function d3_geo_mercator(λ, φ) {
+    return [ λ, Math.log(Math.tan(π / 4 + φ / 2)) ];
+  }
+  d3_geo_mercator.invert = function(x, y) {
+    return [ x, 2 * Math.atan(Math.exp(y)) - halfπ ];
+  };
+  function d3_geo_mercatorProjection(project) {
+    var m = d3_geo_projection(project), scale = m.scale, translate = m.translate, clipExtent = m.clipExtent, clipAuto;
+    m.scale = function() {
+      var v = scale.apply(m, arguments);
+      return v === m ? clipAuto ? m.clipExtent(null) : m : v;
+    };
+    m.translate = function() {
+      var v = translate.apply(m, arguments);
+      return v === m ? clipAuto ? m.clipExtent(null) : m : v;
+    };
+    m.clipExtent = function(_) {
+      var v = clipExtent.apply(m, arguments);
+      if (v === m) {
+        if (clipAuto = _ == null) {
+          var k = π * scale(), t = translate();
+          clipExtent([ [ t[0] - k, t[1] - k ], [ t[0] + k, t[1] + k ] ]);
+        }
+      } else if (clipAuto) {
+        v = null;
+      }
+      return v;
+    };
+    return m.clipExtent(null);
+  }
+  (d3.geo.mercator = function() {
+    return d3_geo_mercatorProjection(d3_geo_mercator);
+  }).raw = d3_geo_mercator;
+  var d3_geo_orthographic = d3_geo_azimuthal(function() {
+    return 1;
+  }, Math.asin);
+  (d3.geo.orthographic = function() {
+    return d3_geo_projection(d3_geo_orthographic);
+  }).raw = d3_geo_orthographic;
+  var d3_geo_stereographic = d3_geo_azimuthal(function(cosλcosφ) {
+    return 1 / (1 + cosλcosφ);
+  }, function(ρ) {
+    return 2 * Math.atan(ρ);
+  });
+  (d3.geo.stereographic = function() {
+    return d3_geo_projection(d3_geo_stereographic);
+  }).raw = d3_geo_stereographic;
+  function d3_geo_transverseMercator(λ, φ) {
+    return [ Math.log(Math.tan(π / 4 + φ / 2)), -λ ];
+  }
+  d3_geo_transverseMercator.invert = function(x, y) {
+    return [ -y, 2 * Math.atan(Math.exp(x)) - halfπ ];
+  };
+  (d3.geo.transverseMercator = function() {
+    var projection = d3_geo_mercatorProjection(d3_geo_transverseMercator), center = projection.center, rotate = projection.rotate;
+    projection.center = function(_) {
+      return _ ? center([ -_[1], _[0] ]) : (_ = center(), [ _[1], -_[0] ]);
+    };
+    projection.rotate = function(_) {
+      return _ ? rotate([ _[0], _[1], _.length > 2 ? _[2] + 90 : 90 ]) : (_ = rotate(), 
+      [ _[0], _[1], _[2] - 90 ]);
+    };
+    return rotate([ 0, 0, 90 ]);
+  }).raw = d3_geo_transverseMercator;
+  d3.geom = {};
+  function d3_geom_pointX(d) {
+    return d[0];
+  }
+  function d3_geom_pointY(d) {
+    return d[1];
+  }
+  d3.geom.hull = function(vertices) {
+    var x = d3_geom_pointX, y = d3_geom_pointY;
+    if (arguments.length) return hull(vertices);
+    function hull(data) {
+      if (data.length < 3) return [];
+      var fx = d3_functor(x), fy = d3_functor(y), i, n = data.length, points = [], flippedPoints = [];
+      for (i = 0; i < n; i++) {
+        points.push([ +fx.call(this, data[i], i), +fy.call(this, data[i], i), i ]);
+      }
+      points.sort(d3_geom_hullOrder);
+      for (i = 0; i < n; i++) flippedPoints.push([ points[i][0], -points[i][1] ]);
+      var upper = d3_geom_hullUpper(points), lower = d3_geom_hullUpper(flippedPoints);
+      var skipLeft = lower[0] === upper[0], skipRight = lower[lower.length - 1] === upper[upper.length - 1], polygon = [];
+      for (i = upper.length - 1; i >= 0; --i) polygon.push(data[points[upper[i]][2]]);
+      for (i = +skipLeft; i < lower.length - skipRight; ++i) polygon.push(data[points[lower[i]][2]]);
+      return polygon;
+    }
+    hull.x = function(_) {
+      return arguments.length ? (x = _, hull) : x;
+    };
+    hull.y = function(_) {
+      return arguments.length ? (y = _, hull) : y;
+    };
+    return hull;
+  };
+  function d3_geom_hullUpper(points) {
+    var n = points.length, hull = [ 0, 1 ], hs = 2;
+    for (var i = 2; i < n; i++) {
+      while (hs > 1 && d3_cross2d(points[hull[hs - 2]], points[hull[hs - 1]], points[i]) <= 0) --hs;
+      hull[hs++] = i;
+    }
+    return hull.slice(0, hs);
+  }
+  function d3_geom_hullOrder(a, b) {
+    return a[0] - b[0] || a[1] - b[1];
+  }
+  d3.geom.polygon = function(coordinates) {
+    d3_subclass(coordinates, d3_geom_polygonPrototype);
+    return coordinates;
+  };
+  var d3_geom_polygonPrototype = d3.geom.polygon.prototype = [];
+  d3_geom_polygonPrototype.area = function() {
+    var i = -1, n = this.length, a, b = this[n - 1], area = 0;
+    while (++i < n) {
+      a = b;
+      b = this[i];
+      area += a[1] * b[0] - a[0] * b[1];
+    }
+    return area * .5;
+  };
+  d3_geom_polygonPrototype.centroid = function(k) {
+    var i = -1, n = this.length, x = 0, y = 0, a, b = this[n - 1], c;
+    if (!arguments.length) k = -1 / (6 * this.area());
+    while (++i < n) {
+      a = b;
+      b = this[i];
+      c = a[0] * b[1] - b[0] * a[1];
+      x += (a[0] + b[0]) * c;
+      y += (a[1] + b[1]) * c;
+    }
+    return [ x * k, y * k ];
+  };
+  d3_geom_polygonPrototype.clip = function(subject) {
+    var input, closed = d3_geom_polygonClosed(subject), i = -1, n = this.length - d3_geom_polygonClosed(this), j, m, a = this[n - 1], b, c, d;
+    while (++i < n) {
+      input = subject.slice();
+      subject.length = 0;
+      b = this[i];
+      c = input[(m = input.length - closed) - 1];
+      j = -1;
+      while (++j < m) {
+        d = input[j];
+        if (d3_geom_polygonInside(d, a, b)) {
+          if (!d3_geom_polygonInside(c, a, b)) {
+            subject.push(d3_geom_polygonIntersect(c, d, a, b));
+          }
+          subject.push(d);
+        } else if (d3_geom_polygonInside(c, a, b)) {
+          subject.push(d3_geom_polygonIntersect(c, d, a, b));
+        }
+        c = d;
+      }
+      if (closed) subject.push(subject[0]);
+      a = b;
+    }
+    return subject;
+  };
+  function d3_geom_polygonInside(p, a, b) {
+    return (b[0] - a[0]) * (p[1] - a[1]) < (b[1] - a[1]) * (p[0] - a[0]);
+  }
+  function d3_geom_polygonIntersect(c, d, a, b) {
+    var x1 = c[0], x3 = a[0], x21 = d[0] - x1, x43 = b[0] - x3, y1 = c[1], y3 = a[1], y21 = d[1] - y1, y43 = b[1] - y3, ua = (x43 * (y1 - y3) - y43 * (x1 - x3)) / (y43 * x21 - x43 * y21);
+    return [ x1 + ua * x21, y1 + ua * y21 ];
+  }
+  function d3_geom_polygonClosed(coordinates) {
+    var a = coordinates[0], b = coordinates[coordinates.length - 1];
+    return !(a[0] - b[0] || a[1] - b[1]);
+  }
+  var d3_geom_voronoiEdges, d3_geom_voronoiCells, d3_geom_voronoiBeaches, d3_geom_voronoiBeachPool = [], d3_geom_voronoiFirstCircle, d3_geom_voronoiCircles, d3_geom_voronoiCirclePool = [];
+  function d3_geom_voronoiBeach() {
+    d3_geom_voronoiRedBlackNode(this);
+    this.edge = this.site = this.circle = null;
+  }
+  function d3_geom_voronoiCreateBeach(site) {
+    var beach = d3_geom_voronoiBeachPool.pop() || new d3_geom_voronoiBeach();
+    beach.site = site;
+    return beach;
+  }
+  function d3_geom_voronoiDetachBeach(beach) {
+    d3_geom_voronoiDetachCircle(beach);
+    d3_geom_voronoiBeaches.remove(beach);
+    d3_geom_voronoiBeachPool.push(beach);
+    d3_geom_voronoiRedBlackNode(beach);
+  }
+  function d3_geom_voronoiRemoveBeach(beach) {
+    var circle = beach.circle, x = circle.x, y = circle.cy, vertex = {
+      x: x,
+      y: y
+    }, previous = beach.P, next = beach.N, disappearing = [ beach ];
+    d3_geom_voronoiDetachBeach(beach);
+    var lArc = previous;
+    while (lArc.circle && abs(x - lArc.circle.x) < ε && abs(y - lArc.circle.cy) < ε) {
+      previous = lArc.P;
+      disappearing.unshift(lArc);
+      d3_geom_voronoiDetachBeach(lArc);
+      lArc = previous;
+    }
+    disappearing.unshift(lArc);
+    d3_geom_voronoiDetachCircle(lArc);
+    var rArc = next;
+    while (rArc.circle && abs(x - rArc.circle.x) < ε && abs(y - rArc.circle.cy) < ε) {
+      next = rArc.N;
+      disappearing.push(rArc);
+      d3_geom_voronoiDetachBeach(rArc);
+      rArc = next;
+    }
+    disappearing.push(rArc);
+    d3_geom_voronoiDetachCircle(rArc);
+    var nArcs = disappearing.length, iArc;
+    for (iArc = 1; iArc < nArcs; ++iArc) {
+      rArc = disappearing[iArc];
+      lArc = disappearing[iArc - 1];
+      d3_geom_voronoiSetEdgeEnd(rArc.edge, lArc.site, rArc.site, vertex);
+    }
+    lArc = disappearing[0];
+    rArc = disappearing[nArcs - 1];
+    rArc.edge = d3_geom_voronoiCreateEdge(lArc.site, rArc.site, null, vertex);
+    d3_geom_voronoiAttachCircle(lArc);
+    d3_geom_voronoiAttachCircle(rArc);
+  }
+  function d3_geom_voronoiAddBeach(site) {
+    var x = site.x, directrix = site.y, lArc, rArc, dxl, dxr, node = d3_geom_voronoiBeaches._;
+    while (node) {
+      dxl = d3_geom_voronoiLeftBreakPoint(node, directrix) - x;
+      if (dxl > ε) node = node.L; else {
+        dxr = x - d3_geom_voronoiRightBreakPoint(node, directrix);
+        if (dxr > ε) {
+          if (!node.R) {
+            lArc = node;
+            break;
+          }
+          node = node.R;
+        } else {
+          if (dxl > -ε) {
+            lArc = node.P;
+            rArc = node;
+          } else if (dxr > -ε) {
+            lArc = node;
+            rArc = node.N;
+          } else {
+            lArc = rArc = node;
+          }
+          break;
+        }
+      }
+    }
+    var newArc = d3_geom_voronoiCreateBeach(site);
+    d3_geom_voronoiBeaches.insert(lArc, newArc);
+    if (!lArc && !rArc) return;
+    if (lArc === rArc) {
+      d3_geom_voronoiDetachCircle(lArc);
+      rArc = d3_geom_voronoiCreateBeach(lArc.site);
+      d3_geom_voronoiBeaches.insert(newArc, rArc);
+      newArc.edge = rArc.edge = d3_geom_voronoiCreateEdge(lArc.site, newArc.site);
+      d3_geom_voronoiAttachCircle(lArc);
+      d3_geom_voronoiAttachCircle(rArc);
+      return;
+    }
+    if (!rArc) {
+      newArc.edge = d3_geom_voronoiCreateEdge(lArc.site, newArc.site);
+      return;
+    }
+    d3_geom_voronoiDetachCircle(lArc);
+    d3_geom_voronoiDetachCircle(rArc);
+    var lSite = lArc.site, ax = lSite.x, ay = lSite.y, bx = site.x - ax, by = site.y - ay, rSite = rArc.site, cx = rSite.x - ax, cy = rSite.y - ay, d = 2 * (bx * cy - by * cx), hb = bx * bx + by * by, hc = cx * cx + cy * cy, vertex = {
+      x: (cy * hb - by * hc) / d + ax,
+      y: (bx * hc - cx * hb) / d + ay
+    };
+    d3_geom_voronoiSetEdgeEnd(rArc.edge, lSite, rSite, vertex);
+    newArc.edge = d3_geom_voronoiCreateEdge(lSite, site, null, vertex);
+    rArc.edge = d3_geom_voronoiCreateEdge(site, rSite, null, vertex);
+    d3_geom_voronoiAttachCircle(lArc);
+    d3_geom_voronoiAttachCircle(rArc);
+  }
+  function d3_geom_voronoiLeftBreakPoint(arc, directrix) {
+    var site = arc.site, rfocx = site.x, rfocy = site.y, pby2 = rfocy - directrix;
+    if (!pby2) return rfocx;
+    var lArc = arc.P;
+    if (!lArc) return -Infinity;
+    site = lArc.site;
+    var lfocx = site.x, lfocy = site.y, plby2 = lfocy - directrix;
+    if (!plby2) return lfocx;
+    var hl = lfocx - rfocx, aby2 = 1 / pby2 - 1 / plby2, b = hl / plby2;
+    if (aby2) return (-b + Math.sqrt(b * b - 2 * aby2 * (hl * hl / (-2 * plby2) - lfocy + plby2 / 2 + rfocy - pby2 / 2))) / aby2 + rfocx;
+    return (rfocx + lfocx) / 2;
+  }
+  function d3_geom_voronoiRightBreakPoint(arc, directrix) {
+    var rArc = arc.N;
+    if (rArc) return d3_geom_voronoiLeftBreakPoint(rArc, directrix);
+    var site = arc.site;
+    return site.y === directrix ? site.x : Infinity;
+  }
+  function d3_geom_voronoiCell(site) {
+    this.site = site;
+    this.edges = [];
+  }
+  d3_geom_voronoiCell.prototype.prepare = function() {
+    var halfEdges = this.edges, iHalfEdge = halfEdges.length, edge;
+    while (iHalfEdge--) {
+      edge = halfEdges[iHalfEdge].edge;
+      if (!edge.b || !edge.a) halfEdges.splice(iHalfEdge, 1);
+    }
+    halfEdges.sort(d3_geom_voronoiHalfEdgeOrder);
+    return halfEdges.length;
+  };
+  function d3_geom_voronoiCloseCells(extent) {
+    var x0 = extent[0][0], x1 = extent[1][0], y0 = extent[0][1], y1 = extent[1][1], x2, y2, x3, y3, cells = d3_geom_voronoiCells, iCell = cells.length, cell, iHalfEdge, halfEdges, nHalfEdges, start, end;
+    while (iCell--) {
+      cell = cells[iCell];
+      if (!cell || !cell.prepare()) continue;
+      halfEdges = cell.edges;
+      nHalfEdges = halfEdges.length;
+      iHalfEdge = 0;
+      while (iHalfEdge < nHalfEdges) {
+        end = halfEdges[iHalfEdge].end(), x3 = end.x, y3 = end.y;
+        start = halfEdges[++iHalfEdge % nHalfEdges].start(), x2 = start.x, y2 = start.y;
+        if (abs(x3 - x2) > ε || abs(y3 - y2) > ε) {
+          halfEdges.splice(iHalfEdge, 0, new d3_geom_voronoiHalfEdge(d3_geom_voronoiCreateBorderEdge(cell.site, end, abs(x3 - x0) < ε && y1 - y3 > ε ? {
+            x: x0,
+            y: abs(x2 - x0) < ε ? y2 : y1
+          } : abs(y3 - y1) < ε && x1 - x3 > ε ? {
+            x: abs(y2 - y1) < ε ? x2 : x1,
+            y: y1
+          } : abs(x3 - x1) < ε && y3 - y0 > ε ? {
+            x: x1,
+            y: abs(x2 - x1) < ε ? y2 : y0
+          } : abs(y3 - y0) < ε && x3 - x0 > ε ? {
+            x: abs(y2 - y0) < ε ? x2 : x0,
+            y: y0
+          } : null), cell.site, null));
+          ++nHalfEdges;
+        }
+      }
+    }
+  }
+  function d3_geom_voronoiHalfEdgeOrder(a, b) {
+    return b.angle - a.angle;
+  }
+  function d3_geom_voronoiCircle() {
+    d3_geom_voronoiRedBlackNode(this);
+    this.x = this.y = this.arc = this.site = this.cy = null;
+  }
+  function d3_geom_voronoiAttachCircle(arc) {
+    var lArc = arc.P, rArc = arc.N;
+    if (!lArc || !rArc) return;
+    var lSite = lArc.site, cSite = arc.site, rSite = rArc.site;
+    if (lSite === rSite) return;
+    var bx = cSite.x, by = cSite.y, ax = lSite.x - bx, ay = lSite.y - by, cx = rSite.x - bx, cy = rSite.y - by;
+    var d = 2 * (ax * cy - ay * cx);
+    if (d >= -ε2) return;
+    var ha = ax * ax + ay * ay, hc = cx * cx + cy * cy, x = (cy * ha - ay * hc) / d, y = (ax * hc - cx * ha) / d, cy = y + by;
+    var circle = d3_geom_voronoiCirclePool.pop() || new d3_geom_voronoiCircle();
+    circle.arc = arc;
+    circle.site = cSite;
+    circle.x = x + bx;
+    circle.y = cy + Math.sqrt(x * x + y * y);
+    circle.cy = cy;
+    arc.circle = circle;
+    var before = null, node = d3_geom_voronoiCircles._;
+    while (node) {
+      if (circle.y < node.y || circle.y === node.y && circle.x <= node.x) {
+        if (node.L) node = node.L; else {
+          before = node.P;
+          break;
+        }
+      } else {
+        if (node.R) node = node.R; else {
+          before = node;
+          break;
+        }
+      }
+    }
+    d3_geom_voronoiCircles.insert(before, circle);
+    if (!before) d3_geom_voronoiFirstCircle = circle;
+  }
+  function d3_geom_voronoiDetachCircle(arc) {
+    var circle = arc.circle;
+    if (circle) {
+      if (!circle.P) d3_geom_voronoiFirstCircle = circle.N;
+      d3_geom_voronoiCircles.remove(circle);
+      d3_geom_voronoiCirclePool.push(circle);
+      d3_geom_voronoiRedBlackNode(circle);
+      arc.circle = null;
+    }
+  }
+  function d3_geom_voronoiClipEdges(extent) {
+    var edges = d3_geom_voronoiEdges, clip = d3_geom_clipLine(extent[0][0], extent[0][1], extent[1][0], extent[1][1]), i = edges.length, e;
+    while (i--) {
+      e = edges[i];
+      if (!d3_geom_voronoiConnectEdge(e, extent) || !clip(e) || abs(e.a.x - e.b.x) < ε && abs(e.a.y - e.b.y) < ε) {
+        e.a = e.b = null;
+        edges.splice(i, 1);
+      }
+    }
+  }
+  function d3_geom_voronoiConnectEdge(edge, extent) {
+    var vb = edge.b;
+    if (vb) return true;
+    var va = edge.a, x0 = extent[0][0], x1 = extent[1][0], y0 = extent[0][1], y1 = extent[1][1], lSite = edge.l, rSite = edge.r, lx = lSite.x, ly = lSite.y, rx = rSite.x, ry = rSite.y, fx = (lx + rx) / 2, fy = (ly + ry) / 2, fm, fb;
+    if (ry === ly) {
+      if (fx < x0 || fx >= x1) return;
+      if (lx > rx) {
+        if (!va) va = {
+          x: fx,
+          y: y0
+        }; else if (va.y >= y1) return;
+        vb = {
+          x: fx,
+          y: y1
+        };
+      } else {
+        if (!va) va = {
+          x: fx,
+          y: y1
+        }; else if (va.y < y0) return;
+        vb = {
+          x: fx,
+          y: y0
+        };
+      }
+    } else {
+      fm = (lx - rx) / (ry - ly);
+      fb = fy - fm * fx;
+      if (fm < -1 || fm > 1) {
+        if (lx > rx) {
+          if (!va) va = {
+            x: (y0 - fb) / fm,
+            y: y0
+          }; else if (va.y >= y1) return;
+          vb = {
+            x: (y1 - fb) / fm,
+            y: y1
+          };
+        } else {
+          if (!va) va = {
+            x: (y1 - fb) / fm,
+            y: y1
+          }; else if (va.y < y0) return;
+          vb = {
+            x: (y0 - fb) / fm,
+            y: y0
+          };
+        }
+      } else {
+        if (ly < ry) {
+          if (!va) va = {
+            x: x0,
+            y: fm * x0 + fb
+          }; else if (va.x >= x1) return;
+          vb = {
+            x: x1,
+            y: fm * x1 + fb
+          };
+        } else {
+          if (!va) va = {
+            x: x1,
+            y: fm * x1 + fb
+          }; else if (va.x < x0) return;
+          vb = {
+            x: x0,
+            y: fm * x0 + fb
+          };
+        }
+      }
+    }
+    edge.a = va;
+    edge.b = vb;
+    return true;
+  }
+  function d3_geom_voronoiEdge(lSite, rSite) {
+    this.l = lSite;
+    this.r = rSite;
+    this.a = this.b = null;
+  }
+  function d3_geom_voronoiCreateEdge(lSite, rSite, va, vb) {
+    var edge = new d3_geom_voronoiEdge(lSite, rSite);
+    d3_geom_voronoiEdges.push(edge);
+    if (va) d3_geom_voronoiSetEdgeEnd(edge, lSite, rSite, va);
+    if (vb) d3_geom_voronoiSetEdgeEnd(edge, rSite, lSite, vb);
+    d3_geom_voronoiCells[lSite.i].edges.push(new d3_geom_voronoiHalfEdge(edge, lSite, rSite));
+    d3_geom_voronoiCells[rSite.i].edges.push(new d3_geom_voronoiHalfEdge(edge, rSite, lSite));
+    return edge;
+  }
+  function d3_geom_voronoiCreateBorderEdge(lSite, va, vb) {
+    var edge = new d3_geom_voronoiEdge(lSite, null);
+    edge.a = va;
+    edge.b = vb;
+    d3_geom_voronoiEdges.push(edge);
+    return edge;
+  }
+  function d3_geom_voronoiSetEdgeEnd(edge, lSite, rSite, vertex) {
+    if (!edge.a && !edge.b) {
+      edge.a = vertex;
+      edge.l = lSite;
+      edge.r = rSite;
+    } else if (edge.l === rSite) {
+      edge.b = vertex;
+    } else {
+      edge.a = vertex;
+    }
+  }
+  function d3_geom_voronoiHalfEdge(edge, lSite, rSite) {
+    var va = edge.a, vb = edge.b;
+    this.edge = edge;
+    this.site = lSite;
+    this.angle = rSite ? Math.atan2(rSite.y - lSite.y, rSite.x - lSite.x) : edge.l === lSite ? Math.atan2(vb.x - va.x, va.y - vb.y) : Math.atan2(va.x - vb.x, vb.y - va.y);
+  }
+  d3_geom_voronoiHalfEdge.prototype = {
+    start: function() {
+      return this.edge.l === this.site ? this.edge.a : this.edge.b;
+    },
+    end: function() {
+      return this.edge.l === this.site ? this.edge.b : this.edge.a;
+    }
+  };
+  function d3_geom_voronoiRedBlackTree() {
+    this._ = null;
+  }
+  function d3_geom_voronoiRedBlackNode(node) {
+    node.U = node.C = node.L = node.R = node.P = node.N = null;
+  }
+  d3_geom_voronoiRedBlackTree.prototype = {
+    insert: function(after, node) {
+      var parent, grandpa, uncle;
+      if (after) {
+        node.P = after;
+        node.N = after.N;
+        if (after.N) after.N.P = node;
+        after.N = node;
+        if (after.R) {
+          after = after.R;
+          while (after.L) after = after.L;
+          after.L = node;
+        } else {
+          after.R = node;
+        }
+        parent = after;
+      } else if (this._) {
+        after = d3_geom_voronoiRedBlackFirst(this._);
+        node.P = null;
+        node.N = after;
+        after.P = after.L = node;
+        parent = after;
+      } else {
+        node.P = node.N = null;
+        this._ = node;
+        parent = null;
+      }
+      node.L = node.R = null;
+      node.U = parent;
+      node.C = true;
+      after = node;
+      while (parent && parent.C) {
+        grandpa = parent.U;
+        if (parent === grandpa.L) {
+          uncle = grandpa.R;
+          if (uncle && uncle.C) {
+            parent.C = uncle.C = false;
+            grandpa.C = true;
+            after = grandpa;
+          } else {
+            if (after === parent.R) {
+              d3_geom_voronoiRedBlackRotateLeft(this, parent);
+              after = parent;
+              parent = after.U;
+            }
+            parent.C = false;
+            grandpa.C = true;
+            d3_geom_voronoiRedBlackRotateRight(this, grandpa);
+          }
+        } else {
+          uncle = grandpa.L;
+          if (uncle && uncle.C) {
+            parent.C = uncle.C = false;
+            grandpa.C = true;
+            after = grandpa;
+          } else {
+            if (after === parent.L) {
+              d3_geom_voronoiRedBlackRotateRight(this, parent);
+              after = parent;
+              parent = after.U;
+            }
+            parent.C = false;
+            grandpa.C = true;
+            d3_geom_voronoiRedBlackRotateLeft(this, grandpa);
+          }
+        }
+        parent = after.U;
+      }
+      this._.C = false;
+    },
+    remove: function(node) {
+      if (node.N) node.N.P = node.P;
+      if (node.P) node.P.N = node.N;
+      node.N = node.P = null;
+      var parent = node.U, sibling, left = node.L, right = node.R, next, red;
+      if (!left) next = right; else if (!right) next = left; else next = d3_geom_voronoiRedBlackFirst(right);
+      if (parent) {
+        if (parent.L === node) parent.L = next; else parent.R = next;
+      } else {
+        this._ = next;
+      }
+      if (left && right) {
+        red = next.C;
+        next.C = node.C;
+        next.L = left;
+        left.U = next;
+        if (next !== right) {
+          parent = next.U;
+          next.U = node.U;
+          node = next.R;
+          parent.L = node;
+          next.R = right;
+          right.U = next;
+        } else {
+          next.U = parent;
+          parent = next;
+          node = next.R;
+        }
+      } else {
+        red = node.C;
+        node = next;
+      }
+      if (node) node.U = parent;
+      if (red) return;
+      if (node && node.C) {
+        node.C = false;
+        return;
+      }
+      do {
+        if (node === this._) break;
+        if (node === parent.L) {
+          sibling = parent.R;
+          if (sibling.C) {
+            sibling.C = false;
+            parent.C = true;
+            d3_geom_voronoiRedBlackRotateLeft(this, parent);
+            sibling = parent.R;
+          }
+          if (sibling.L && sibling.L.C || sibling.R && sibling.R.C) {
+            if (!sibling.R || !sibling.R.C) {
+              sibling.L.C = false;
+              sibling.C = true;
+              d3_geom_voronoiRedBlackRotateRight(this, sibling);
+              sibling = parent.R;
+            }
+            sibling.C = parent.C;
+            parent.C = sibling.R.C = false;
+            d3_geom_voronoiRedBlackRotateLeft(this, parent);
+            node = this._;
+            break;
+          }
+        } else {
+          sibling = parent.L;
+          if (sibling.C) {
+            sibling.C = false;
+            parent.C = true;
+            d3_geom_voronoiRedBlackRotateRight(this, parent);
+            sibling = parent.L;
+          }
+          if (sibling.L && sibling.L.C || sibling.R && sibling.R.C) {
+            if (!sibling.L || !sibling.L.C) {
+              sibling.R.C = false;
+              sibling.C = true;
+              d3_geom_voronoiRedBlackRotateLeft(this, sibling);
+              sibling = parent.L;
+            }
+            sibling.C = parent.C;
+            parent.C = sibling.L.C = false;
+            d3_geom_voronoiRedBlackRotateRight(this, parent);
+            node = this._;
+            break;
+          }
+        }
+        sibling.C = true;
+        node = parent;
+        parent = parent.U;
+      } while (!node.C);
+      if (node) node.C = false;
+    }
+  };
+  function d3_geom_voronoiRedBlackRotateLeft(tree, node) {
+    var p = node, q = node.R, parent = p.U;
+    if (parent) {
+      if (parent.L === p) parent.L = q; else parent.R = q;
+    } else {
+      tree._ = q;
+    }
+    q.U = parent;
+    p.U = q;
+    p.R = q.L;
+    if (p.R) p.R.U = p;
+    q.L = p;
+  }
+  function d3_geom_voronoiRedBlackRotateRight(tree, node) {
+    var p = node, q = node.L, parent = p.U;
+    if (parent) {
+      if (parent.L === p) parent.L = q; else parent.R = q;
+    } else {
+      tree._ = q;
+    }
+    q.U = parent;
+    p.U = q;
+    p.L = q.R;
+    if (p.L) p.L.U = p;
+    q.R = p;
+  }
+  function d3_geom_voronoiRedBlackFirst(node) {
+    while (node.L) node = node.L;
+    return node;
+  }
+  function d3_geom_voronoi(sites, bbox) {
+    var site = sites.sort(d3_geom_voronoiVertexOrder).pop(), x0, y0, circle;
+    d3_geom_voronoiEdges = [];
+    d3_geom_voronoiCells = new Array(sites.length);
+    d3_geom_voronoiBeaches = new d3_geom_voronoiRedBlackTree();
+    d3_geom_voronoiCircles = new d3_geom_voronoiRedBlackTree();
+    while (true) {
+      circle = d3_geom_voronoiFirstCircle;
+      if (site && (!circle || site.y < circle.y || site.y === circle.y && site.x < circle.x)) {
+        if (site.x !== x0 || site.y !== y0) {
+          d3_geom_voronoiCells[site.i] = new d3_geom_voronoiCell(site);
+          d3_geom_voronoiAddBeach(site);
+          x0 = site.x, y0 = site.y;
+        }
+        site = sites.pop();
+      } else if (circle) {
+        d3_geom_voronoiRemoveBeach(circle.arc);
+      } else {
+        break;
+      }
+    }
+    if (bbox) d3_geom_voronoiClipEdges(bbox), d3_geom_voronoiCloseCells(bbox);
+    var diagram = {
+      cells: d3_geom_voronoiCells,
+      edges: d3_geom_voronoiEdges
+    };
+    d3_geom_voronoiBeaches = d3_geom_voronoiCircles = d3_geom_voronoiEdges = d3_geom_voronoiCells = null;
+    return diagram;
+  }
+  function d3_geom_voronoiVertexOrder(a, b) {
+    return b.y - a.y || b.x - a.x;
+  }
+  d3.geom.voronoi = function(points) {
+    var x = d3_geom_pointX, y = d3_geom_pointY, fx = x, fy = y, clipExtent = d3_geom_voronoiClipExtent;
+    if (points) return voronoi(points);
+    function voronoi(data) {
+      var polygons = new Array(data.length), x0 = clipExtent[0][0], y0 = clipExtent[0][1], x1 = clipExtent[1][0], y1 = clipExtent[1][1];
+      d3_geom_voronoi(sites(data), clipExtent).cells.forEach(function(cell, i) {
+        var edges = cell.edges, site = cell.site, polygon = polygons[i] = edges.length ? edges.map(function(e) {
+          var s = e.start();
+          return [ s.x, s.y ];
+        }) : site.x >= x0 && site.x <= x1 && site.y >= y0 && site.y <= y1 ? [ [ x0, y1 ], [ x1, y1 ], [ x1, y0 ], [ x0, y0 ] ] : [];
+        polygon.point = data[i];
+      });
+      return polygons;
+    }
+    function sites(data) {
+      return data.map(function(d, i) {
+        return {
+          x: Math.round(fx(d, i) / ε) * ε,
+          y: Math.round(fy(d, i) / ε) * ε,
+          i: i
+        };
+      });
+    }
+    voronoi.links = function(data) {
+      return d3_geom_voronoi(sites(data)).edges.filter(function(edge) {
+        return edge.l && edge.r;
+      }).map(function(edge) {
+        return {
+          source: data[edge.l.i],
+          target: data[edge.r.i]
+        };
+      });
+    };
+    voronoi.triangles = function(data) {
+      var triangles = [];
+      d3_geom_voronoi(sites(data)).cells.forEach(function(cell, i) {
+        var site = cell.site, edges = cell.edges.sort(d3_geom_voronoiHalfEdgeOrder), j = -1, m = edges.length, e0, s0, e1 = edges[m - 1].edge, s1 = e1.l === site ? e1.r : e1.l;
+        while (++j < m) {
+          e0 = e1;
+          s0 = s1;
+          e1 = edges[j].edge;
+          s1 = e1.l === site ? e1.r : e1.l;
+          if (i < s0.i && i < s1.i && d3_geom_voronoiTriangleArea(site, s0, s1) < 0) {
+            triangles.push([ data[i], data[s0.i], data[s1.i] ]);
+          }
+        }
+      });
+      return triangles;
+    };
+    voronoi.x = function(_) {
+      return arguments.length ? (fx = d3_functor(x = _), voronoi) : x;
+    };
+    voronoi.y = function(_) {
+      return arguments.length ? (fy = d3_functor(y = _), voronoi) : y;
+    };
+    voronoi.clipExtent = function(_) {
+      if (!arguments.length) return clipExtent === d3_geom_voronoiClipExtent ? null : clipExtent;
+      clipExtent = _ == null ? d3_geom_voronoiClipExtent : _;
+      return voronoi;
+    };
+    voronoi.size = function(_) {
+      if (!arguments.length) return clipExtent === d3_geom_voronoiClipExtent ? null : clipExtent && clipExtent[1];
+      return voronoi.clipExtent(_ && [ [ 0, 0 ], _ ]);
+    };
+    return voronoi;
+  };
+  var d3_geom_voronoiClipExtent = [ [ -1e6, -1e6 ], [ 1e6, 1e6 ] ];
+  function d3_geom_voronoiTriangleArea(a, b, c) {
+    return (a.x - c.x) * (b.y - a.y) - (a.x - b.x) * (c.y - a.y);
+  }
+  d3.geom.delaunay = function(vertices) {
+    return d3.geom.voronoi().triangles(vertices);
+  };
+  d3.geom.quadtree = function(points, x1, y1, x2, y2) {
+    var x = d3_geom_pointX, y = d3_geom_pointY, compat;
+    if (compat = arguments.length) {
+      x = d3_geom_quadtreeCompatX;
+      y = d3_geom_quadtreeCompatY;
+      if (compat === 3) {
+        y2 = y1;
+        x2 = x1;
+        y1 = x1 = 0;
+      }
+      return quadtree(points);
+    }
+    function quadtree(data) {
+      var d, fx = d3_functor(x), fy = d3_functor(y), xs, ys, i, n, x1_, y1_, x2_, y2_;
+      if (x1 != null) {
+        x1_ = x1, y1_ = y1, x2_ = x2, y2_ = y2;
+      } else {
+        x2_ = y2_ = -(x1_ = y1_ = Infinity);
+        xs = [], ys = [];
+        n = data.length;
+        if (compat) for (i = 0; i < n; ++i) {
+          d = data[i];
+          if (d.x < x1_) x1_ = d.x;
+          if (d.y < y1_) y1_ = d.y;
+          if (d.x > x2_) x2_ = d.x;
+          if (d.y > y2_) y2_ = d.y;
+          xs.push(d.x);
+          ys.push(d.y);
+        } else for (i = 0; i < n; ++i) {
+          var x_ = +fx(d = data[i], i), y_ = +fy(d, i);
+          if (x_ < x1_) x1_ = x_;
+          if (y_ < y1_) y1_ = y_;
+          if (x_ > x2_) x2_ = x_;
+          if (y_ > y2_) y2_ = y_;
+          xs.push(x_);
+          ys.push(y_);
+        }
+      }
+      var dx = x2_ - x1_, dy = y2_ - y1_;
+      if (dx > dy) y2_ = y1_ + dx; else x2_ = x1_ + dy;
+      function insert(n, d, x, y, x1, y1, x2, y2) {
+        if (isNaN(x) || isNaN(y)) return;
+        if (n.leaf) {
+          var nx = n.x, ny = n.y;
+          if (nx != null) {
+            if (abs(nx - x) + abs(ny - y) < .01) {
+              insertChild(n, d, x, y, x1, y1, x2, y2);
+            } else {
+              var nPoint = n.point;
+              n.x = n.y = n.point = null;
+              insertChild(n, nPoint, nx, ny, x1, y1, x2, y2);
+              insertChild(n, d, x, y, x1, y1, x2, y2);
+            }
+          } else {
+            n.x = x, n.y = y, n.point = d;
+          }
+        } else {
+          insertChild(n, d, x, y, x1, y1, x2, y2);
+        }
+      }
+      function insertChild(n, d, x, y, x1, y1, x2, y2) {
+        var xm = (x1 + x2) * .5, ym = (y1 + y2) * .5, right = x >= xm, below = y >= ym, i = below << 1 | right;
+        n.leaf = false;
+        n = n.nodes[i] || (n.nodes[i] = d3_geom_quadtreeNode());
+        if (right) x1 = xm; else x2 = xm;
+        if (below) y1 = ym; else y2 = ym;
+        insert(n, d, x, y, x1, y1, x2, y2);
+      }
+      var root = d3_geom_quadtreeNode();
+      root.add = function(d) {
+        insert(root, d, +fx(d, ++i), +fy(d, i), x1_, y1_, x2_, y2_);
+      };
+      root.visit = function(f) {
+        d3_geom_quadtreeVisit(f, root, x1_, y1_, x2_, y2_);
+      };
+      root.find = function(point) {
+        return d3_geom_quadtreeFind(root, point[0], point[1], x1_, y1_, x2_, y2_);
+      };
+      i = -1;
+      if (x1 == null) {
+        while (++i < n) {
+          insert(root, data[i], xs[i], ys[i], x1_, y1_, x2_, y2_);
+        }
+        --i;
+      } else data.forEach(root.add);
+      xs = ys = data = d = null;
+      return root;
+    }
+    quadtree.x = function(_) {
+      return arguments.length ? (x = _, quadtree) : x;
+    };
+    quadtree.y = function(_) {
+      return arguments.length ? (y = _, quadtree) : y;
+    };
+    quadtree.extent = function(_) {
+      if (!arguments.length) return x1 == null ? null : [ [ x1, y1 ], [ x2, y2 ] ];
+      if (_ == null) x1 = y1 = x2 = y2 = null; else x1 = +_[0][0], y1 = +_[0][1], x2 = +_[1][0], 
+      y2 = +_[1][1];
+      return quadtree;
+    };
+    quadtree.size = function(_) {
+      if (!arguments.length) return x1 == null ? null : [ x2 - x1, y2 - y1 ];
+      if (_ == null) x1 = y1 = x2 = y2 = null; else x1 = y1 = 0, x2 = +_[0], y2 = +_[1];
+      return quadtree;
+    };
+    return quadtree;
+  };
+  function d3_geom_quadtreeCompatX(d) {
+    return d.x;
+  }
+  function d3_geom_quadtreeCompatY(d) {
+    return d.y;
+  }
+  function d3_geom_quadtreeNode() {
+    return {
+      leaf: true,
+      nodes: [],
+      point: null,
+      x: null,
+      y: null
+    };
+  }
+  function d3_geom_quadtreeVisit(f, node, x1, y1, x2, y2) {
+    if (!f(node, x1, y1, x2, y2)) {
+      var sx = (x1 + x2) * .5, sy = (y1 + y2) * .5, children = node.nodes;
+      if (children[0]) d3_geom_quadtreeVisit(f, children[0], x1, y1, sx, sy);
+      if (children[1]) d3_geom_quadtreeVisit(f, children[1], sx, y1, x2, sy);
+      if (children[2]) d3_geom_quadtreeVisit(f, children[2], x1, sy, sx, y2);
+      if (children[3]) d3_geom_quadtreeVisit(f, children[3], sx, sy, x2, y2);
+    }
+  }
+  function d3_geom_quadtreeFind(root, x, y, x0, y0, x3, y3) {
+    var minDistance2 = Infinity, closestPoint;
+    (function find(node, x1, y1, x2, y2) {
+      if (x1 > x3 || y1 > y3 || x2 < x0 || y2 < y0) return;
+      if (point = node.point) {
+        var point, dx = x - node.x, dy = y - node.y, distance2 = dx * dx + dy * dy;
+        if (distance2 < minDistance2) {
+          var distance = Math.sqrt(minDistance2 = distance2);
+          x0 = x - distance, y0 = y - distance;
+          x3 = x + distance, y3 = y + distance;
+          closestPoint = point;
+        }
+      }
+      var children = node.nodes, xm = (x1 + x2) * .5, ym = (y1 + y2) * .5, right = x >= xm, below = y >= ym;
+      for (var i = below << 1 | right, j = i + 4; i < j; ++i) {
+        if (node = children[i & 3]) switch (i & 3) {
+         case 0:
+          find(node, x1, y1, xm, ym);
+          break;
+
+         case 1:
+          find(node, xm, y1, x2, ym);
+          break;
+
+         case 2:
+          find(node, x1, ym, xm, y2);
+          break;
+
+         case 3:
+          find(node, xm, ym, x2, y2);
+          break;
+        }
+      }
+    })(root, x0, y0, x3, y3);
+    return closestPoint;
+  }
+  d3.interpolateRgb = d3_interpolateRgb;
+  function d3_interpolateRgb(a, b) {
+    a = d3.rgb(a);
+    b = d3.rgb(b);
+    var ar = a.r, ag = a.g, ab = a.b, br = b.r - ar, bg = b.g - ag, bb = b.b - ab;
+    return function(t) {
+      return "#" + d3_rgb_hex(Math.round(ar + br * t)) + d3_rgb_hex(Math.round(ag + bg * t)) + d3_rgb_hex(Math.round(ab + bb * t));
+    };
+  }
+  d3.interpolateObject = d3_interpolateObject;
+  function d3_interpolateObject(a, b) {
+    var i = {}, c = {}, k;
+    for (k in a) {
+      if (k in b) {
+        i[k] = d3_interpolate(a[k], b[k]);
+      } else {
+        c[k] = a[k];
+      }
+    }
+    for (k in b) {
+      if (!(k in a)) {
+        c[k] = b[k];
+      }
+    }
+    return function(t) {
+      for (k in i) c[k] = i[k](t);
+      return c;
+    };
+  }
+  d3.interpolateNumber = d3_interpolateNumber;
+  function d3_interpolateNumber(a, b) {
+    a = +a, b = +b;
+    return function(t) {
+      return a * (1 - t) + b * t;
+    };
+  }
+  d3.interpolateString = d3_interpolateString;
+  function d3_interpolateString(a, b) {
+    var bi = d3_interpolate_numberA.lastIndex = d3_interpolate_numberB.lastIndex = 0, am, bm, bs, i = -1, s = [], q = [];
+    a = a + "", b = b + "";
+    while ((am = d3_interpolate_numberA.exec(a)) && (bm = d3_interpolate_numberB.exec(b))) {
+      if ((bs = bm.index) > bi) {
+        bs = b.slice(bi, bs);
+        if (s[i]) s[i] += bs; else s[++i] = bs;
+      }
+      if ((am = am[0]) === (bm = bm[0])) {
+        if (s[i]) s[i] += bm; else s[++i] = bm;
+      } else {
+        s[++i] = null;
+        q.push({
+          i: i,
+          x: d3_interpolateNumber(am, bm)
+        });
+      }
+      bi = d3_interpolate_numberB.lastIndex;
+    }
+    if (bi < b.length) {
+      bs = b.slice(bi);
+      if (s[i]) s[i] += bs; else s[++i] = bs;
+    }
+    return s.length < 2 ? q[0] ? (b = q[0].x, function(t) {
+      return b(t) + "";
+    }) : function() {
+      return b;
+    } : (b = q.length, function(t) {
+      for (var i = 0, o; i < b; ++i) s[(o = q[i]).i] = o.x(t);
+      return s.join("");
+    });
+  }
+  var d3_interpolate_numberA = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g, d3_interpolate_numberB = new RegExp(d3_interpolate_numberA.source, "g");
+  d3.interpolate = d3_interpolate;
+  function d3_interpolate(a, b) {
+    var i = d3.interpolators.length, f;
+    while (--i >= 0 && !(f = d3.interpolators[i](a, b))) ;
+    return f;
+  }
+  d3.interpolators = [ function(a, b) {
+    var t = typeof b;
+    return (t === "string" ? d3_rgb_names.has(b.toLowerCase()) || /^(#|rgb\(|hsl\()/i.test(b) ? d3_interpolateRgb : d3_interpolateString : b instanceof d3_color ? d3_interpolateRgb : Array.isArray(b) ? d3_interpolateArray : t === "object" && isNaN(b) ? d3_interpolateObject : d3_interpolateNumber)(a, b);
+  } ];
+  d3.interpolateArray = d3_interpolateArray;
+  function d3_interpolateArray(a, b) {
+    var x = [], c = [], na = a.length, nb = b.length, n0 = Math.min(a.length, b.length), i;
+    for (i = 0; i < n0; ++i) x.push(d3_interpolate(a[i], b[i]));
+    for (;i < na; ++i) c[i] = a[i];
+    for (;i < nb; ++i) c[i] = b[i];
+    return function(t) {
+      for (i = 0; i < n0; ++i) c[i] = x[i](t);
+      return c;
+    };
+  }
+  var d3_ease_default = function() {
+    return d3_identity;
+  };
+  var d3_ease = d3.map({
+    linear: d3_ease_default,
+    poly: d3_ease_poly,
+    quad: function() {
+      return d3_ease_quad;
+    },
+    cubic: function() {
+      return d3_ease_cubic;
+    },
+    sin: function() {
+      return d3_ease_sin;
+    },
+    exp: function() {
+      return d3_ease_exp;
+    },
+    circle: function() {
+      return d3_ease_circle;
+    },
+    elastic: d3_ease_elastic,
+    back: d3_ease_back,
+    bounce: function() {
+      return d3_ease_bounce;
+    }
+  });
+  var d3_ease_mode = d3.map({
+    "in": d3_identity,
+    out: d3_ease_reverse,
+    "in-out": d3_ease_reflect,
+    "out-in": function(f) {
+      return d3_ease_reflect(d3_ease_reverse(f));
+    }
+  });
+  d3.ease = function(name) {
+    var i = name.indexOf("-"), t = i >= 0 ? name.slice(0, i) : name, m = i >= 0 ? name.slice(i + 1) : "in";
+    t = d3_ease.get(t) || d3_ease_default;
+    m = d3_ease_mode.get(m) || d3_identity;
+    return d3_ease_clamp(m(t.apply(null, d3_arraySlice.call(arguments, 1))));
+  };
+  function d3_ease_clamp(f) {
+    return function(t) {
+      return t <= 0 ? 0 : t >= 1 ? 1 : f(t);
+    };
+  }
+  function d3_ease_reverse(f) {
+    return function(t) {
+      return 1 - f(1 - t);
+    };
+  }
+  function d3_ease_reflect(f) {
+    return function(t) {
+      return .5 * (t < .5 ? f(2 * t) : 2 - f(2 - 2 * t));
+    };
+  }
+  function d3_ease_quad(t) {
+    return t * t;
+  }
+  function d3_ease_cubic(t) {
+    return t * t * t;
+  }
+  function d3_ease_cubicInOut(t) {
+    if (t <= 0) return 0;
+    if (t >= 1) return 1;
+    var t2 = t * t, t3 = t2 * t;
+    return 4 * (t < .5 ? t3 : 3 * (t - t2) + t3 - .75);
+  }
+  function d3_ease_poly(e) {
+    return function(t) {
+      return Math.pow(t, e);
+    };
+  }
+  function d3_ease_sin(t) {
+    return 1 - Math.cos(t * halfπ);
+  }
+  function d3_ease_exp(t) {
+    return Math.pow(2, 10 * (t - 1));
+  }
+  function d3_ease_circle(t) {
+    return 1 - Math.sqrt(1 - t * t);
+  }
+  function d3_ease_elastic(a, p) {
+    var s;
+    if (arguments.length < 2) p = .45;
+    if (arguments.length) s = p / τ * Math.asin(1 / a); else a = 1, s = p / 4;
+    return function(t) {
+      return 1 + a * Math.pow(2, -10 * t) * Math.sin((t - s) * τ / p);
+    };
+  }
+  function d3_ease_back(s) {
+    if (!s) s = 1.70158;
+    return function(t) {
+      return t * t * ((s + 1) * t - s);
+    };
+  }
+  function d3_ease_bounce(t) {
+    return t < 1 / 2.75 ? 7.5625 * t * t : t < 2 / 2.75 ? 7.5625 * (t -= 1.5 / 2.75) * t + .75 : t < 2.5 / 2.75 ? 7.5625 * (t -= 2.25 / 2.75) * t + .9375 : 7.5625 * (t -= 2.625 / 2.75) * t + .984375;
+  }
+  d3.interpolateHcl = d3_interpolateHcl;
+  function d3_interpolateHcl(a, b) {
+    a = d3.hcl(a);
+    b = d3.hcl(b);
+    var ah = a.h, ac = a.c, al = a.l, bh = b.h - ah, bc = b.c - ac, bl = b.l - al;
+    if (isNaN(bc)) bc = 0, ac = isNaN(ac) ? b.c : ac;
+    if (isNaN(bh)) bh = 0, ah = isNaN(ah) ? b.h : ah; else if (bh > 180) bh -= 360; else if (bh < -180) bh += 360;
+    return function(t) {
+      return d3_hcl_lab(ah + bh * t, ac + bc * t, al + bl * t) + "";
+    };
+  }
+  d3.interpolateHsl = d3_interpolateHsl;
+  function d3_interpolateHsl(a, b) {
+    a = d3.hsl(a);
+    b = d3.hsl(b);
+    var ah = a.h, as = a.s, al = a.l, bh = b.h - ah, bs = b.s - as, bl = b.l - al;
+    if (isNaN(bs)) bs = 0, as = isNaN(as) ? b.s : as;
+    if (isNaN(bh)) bh = 0, ah = isNaN(ah) ? b.h : ah; else if (bh > 180) bh -= 360; else if (bh < -180) bh += 360;
+    return function(t) {
+      return d3_hsl_rgb(ah + bh * t, as + bs * t, al + bl * t) + "";
+    };
+  }
+  d3.interpolateLab = d3_interpolateLab;
+  function d3_interpolateLab(a, b) {
+    a = d3.lab(a);
+    b = d3.lab(b);
+    var al = a.l, aa = a.a, ab = a.b, bl = b.l - al, ba = b.a - aa, bb = b.b - ab;
+    return function(t) {
+      return d3_lab_rgb(al + bl * t, aa + ba * t, ab + bb * t) + "";
+    };
+  }
+  d3.interpolateRound = d3_interpolateRound;
+  function d3_interpolateRound(a, b) {
+    b -= a;
+    return function(t) {
+      return Math.round(a + b * t);
+    };
+  }
+  d3.transform = function(string) {
+    var g = d3_document.createElementNS(d3.ns.prefix.svg, "g");
+    return (d3.transform = function(string) {
+      if (string != null) {
+        g.setAttribute("transform", string);
+        var t = g.transform.baseVal.consolidate();
+      }
+      return new d3_transform(t ? t.matrix : d3_transformIdentity);
+    })(string);
+  };
+  function d3_transform(m) {
+    var r0 = [ m.a, m.b ], r1 = [ m.c, m.d ], kx = d3_transformNormalize(r0), kz = d3_transformDot(r0, r1), ky = d3_transformNormalize(d3_transformCombine(r1, r0, -kz)) || 0;
+    if (r0[0] * r1[1] < r1[0] * r0[1]) {
+      r0[0] *= -1;
+      r0[1] *= -1;
+      kx *= -1;
+      kz *= -1;
+    }
+    this.rotate = (kx ? Math.atan2(r0[1], r0[0]) : Math.atan2(-r1[0], r1[1])) * d3_degrees;
+    this.translate = [ m.e, m.f ];
+    this.scale = [ kx, ky ];
+    this.skew = ky ? Math.atan2(kz, ky) * d3_degrees : 0;
+  }
+  d3_transform.prototype.toString = function() {
+    return "translate(" + this.translate + ")rotate(" + this.rotate + ")skewX(" + this.skew + ")scale(" + this.scale + ")";
+  };
+  function d3_transformDot(a, b) {
+    return a[0] * b[0] + a[1] * b[1];
+  }
+  function d3_transformNormalize(a) {
+    var k = Math.sqrt(d3_transformDot(a, a));
+    if (k) {
+      a[0] /= k;
+      a[1] /= k;
+    }
+    return k;
+  }
+  function d3_transformCombine(a, b, k) {
+    a[0] += k * b[0];
+    a[1] += k * b[1];
+    return a;
+  }
+  var d3_transformIdentity = {
+    a: 1,
+    b: 0,
+    c: 0,
+    d: 1,
+    e: 0,
+    f: 0
+  };
+  d3.interpolateTransform = d3_interpolateTransform;
+  function d3_interpolateTransform(a, b) {
+    var s = [], q = [], n, A = d3.transform(a), B = d3.transform(b), ta = A.translate, tb = B.translate, ra = A.rotate, rb = B.rotate, wa = A.skew, wb = B.skew, ka = A.scale, kb = B.scale;
+    if (ta[0] != tb[0] || ta[1] != tb[1]) {
+      s.push("translate(", null, ",", null, ")");
+      q.push({
+        i: 1,
+        x: d3_interpolateNumber(ta[0], tb[0])
+      }, {
+        i: 3,
+        x: d3_interpolateNumber(ta[1], tb[1])
+      });
+    } else if (tb[0] || tb[1]) {
+      s.push("translate(" + tb + ")");
+    } else {
+      s.push("");
+    }
+    if (ra != rb) {
+      if (ra - rb > 180) rb += 360; else if (rb - ra > 180) ra += 360;
+      q.push({
+        i: s.push(s.pop() + "rotate(", null, ")") - 2,
+        x: d3_interpolateNumber(ra, rb)
+      });
+    } else if (rb) {
+      s.push(s.pop() + "rotate(" + rb + ")");
+    }
+    if (wa != wb) {
+      q.push({
+        i: s.push(s.pop() + "skewX(", null, ")") - 2,
+        x: d3_interpolateNumber(wa, wb)
+      });
+    } else if (wb) {
+      s.push(s.pop() + "skewX(" + wb + ")");
+    }
+    if (ka[0] != kb[0] || ka[1] != kb[1]) {
+      n = s.push(s.pop() + "scale(", null, ",", null, ")");
+      q.push({
+        i: n - 4,
+        x: d3_interpolateNumber(ka[0], kb[0])
+      }, {
+        i: n - 2,
+        x: d3_interpolateNumber(ka[1], kb[1])
+      });
+    } else if (kb[0] != 1 || kb[1] != 1) {
+      s.push(s.pop() + "scale(" + kb + ")");
+    }
+    n = q.length;
+    return function(t) {
+      var i = -1, o;
+      while (++i < n) s[(o = q[i]).i] = o.x(t);
+      return s.join("");
+    };
+  }
+  function d3_uninterpolateNumber(a, b) {
+    b = (b -= a = +a) || 1 / b;
+    return function(x) {
+      return (x - a) / b;
+    };
+  }
+  function d3_uninterpolateClamp(a, b) {
+    b = (b -= a = +a) || 1 / b;
+    return function(x) {
+      return Math.max(0, Math.min(1, (x - a) / b));
+    };
+  }
+  d3.layout = {};
+  d3.layout.bundle = function() {
+    return function(links) {
+      var paths = [], i = -1, n = links.length;
+      while (++i < n) paths.push(d3_layout_bundlePath(links[i]));
+      return paths;
+    };
+  };
+  function d3_layout_bundlePath(link) {
+    var start = link.source, end = link.target, lca = d3_layout_bundleLeastCommonAncestor(start, end), points = [ start ];
+    while (start !== lca) {
+      start = start.parent;
+      points.push(start);
+    }
+    var k = points.length;
+    while (end !== lca) {
+      points.splice(k, 0, end);
+      end = end.parent;
+    }
+    return points;
+  }
+  function d3_layout_bundleAncestors(node) {
+    var ancestors = [], parent = node.parent;
+    while (parent != null) {
+      ancestors.push(node);
+      node = parent;
+      parent = parent.parent;
+    }
+    ancestors.push(node);
+    return ancestors;
+  }
+  function d3_layout_bundleLeastCommonAncestor(a, b) {
+    if (a === b) return a;
+    var aNodes = d3_layout_bundleAncestors(a), bNodes = d3_layout_bundleAncestors(b), aNode = aNodes.pop(), bNode = bNodes.pop(), sharedNode = null;
+    while (aNode === bNode) {
+      sharedNode = aNode;
+      aNode = aNodes.pop();
+      bNode = bNodes.pop();
+    }
+    return sharedNode;
+  }
+  d3.layout.chord = function() {
+    var chord = {}, chords, groups, matrix, n, padding = 0, sortGroups, sortSubgroups, sortChords;
+    function relayout() {
+      var subgroups = {}, groupSums = [], groupIndex = d3.range(n), subgroupIndex = [], k, x, x0, i, j;
+      chords = [];
+      groups = [];
+      k = 0, i = -1;
+      while (++i < n) {
+        x = 0, j = -1;
+        while (++j < n) {
+          x += matrix[i][j];
+        }
+        groupSums.push(x);
+        subgroupIndex.push(d3.range(n));
+        k += x;
+      }
+      if (sortGroups) {
+        groupIndex.sort(function(a, b) {
+          return sortGroups(groupSums[a], groupSums[b]);
+        });
+      }
+      if (sortSubgroups) {
+        subgroupIndex.forEach(function(d, i) {
+          d.sort(function(a, b) {
+            return sortSubgroups(matrix[i][a], matrix[i][b]);
+          });
+        });
+      }
+      k = (τ - padding * n) / k;
+      x = 0, i = -1;
+      while (++i < n) {
+        x0 = x, j = -1;
+        while (++j < n) {
+          var di = groupIndex[i], dj = subgroupIndex[di][j], v = matrix[di][dj], a0 = x, a1 = x += v * k;
+          subgroups[di + "-" + dj] = {
+            index: di,
+            subindex: dj,
+            startAngle: a0,
+            endAngle: a1,
+            value: v
+          };
+        }
+        groups[di] = {
+          index: di,
+          startAngle: x0,
+          endAngle: x,
+          value: (x - x0) / k
+        };
+        x += padding;
+      }
+      i = -1;
+      while (++i < n) {
+        j = i - 1;
+        while (++j < n) {
+          var source = subgroups[i + "-" + j], target = subgroups[j + "-" + i];
+          if (source.value || target.value) {
+            chords.push(source.value < target.value ? {
+              source: target,
+              target: source
+            } : {
+              source: source,
+              target: target
+            });
+          }
+        }
+      }
+      if (sortChords) resort();
+    }
+    function resort() {
+      chords.sort(function(a, b) {
+        return sortChords((a.source.value + a.target.value) / 2, (b.source.value + b.target.value) / 2);
+      });
+    }
+    chord.matrix = function(x) {
+      if (!arguments.length) return matrix;
+      n = (matrix = x) && matrix.length;
+      chords = groups = null;
+      return chord;
+    };
+    chord.padding = function(x) {
+      if (!arguments.length) return padding;
+      padding = x;
+      chords = groups = null;
+      return chord;
+    };
+    chord.sortGroups = function(x) {
+      if (!arguments.length) return sortGroups;
+      sortGroups = x;
+      chords = groups = null;
+      return chord;
+    };
+    chord.sortSubgroups = function(x) {
+      if (!arguments.length) return sortSubgroups;
+      sortSubgroups = x;
+      chords = null;
+      return chord;
+    };
+    chord.sortChords = function(x) {
+      if (!arguments.length) return sortChords;
+      sortChords = x;
+      if (chords) resort();
+      return chord;
+    };
+    chord.chords = function() {
+      if (!chords) relayout();
+      return chords;
+    };
+    chord.groups = function() {
+      if (!groups) relayout();
+      return groups;
+    };
+    return chord;
+  };
+  d3.layout.force = function() {
+    var force = {}, event = d3.dispatch("start", "tick", "end"), size = [ 1, 1 ], drag, alpha, friction = .9, linkDistance = d3_layout_forceLinkDistance, linkStrength = d3_layout_forceLinkStrength, charge = -30, chargeDistance2 = d3_layout_forceChargeDistance2, gravity = .1, theta2 = .64, nodes = [], links = [], distances, strengths, charges;
+    function repulse(node) {
+      return function(quad, x1, _, x2) {
+        if (quad.point !== node) {
+          var dx = quad.cx - node.x, dy = quad.cy - node.y, dw = x2 - x1, dn = dx * dx + dy * dy;
+          if (dw * dw / theta2 < dn) {
+            if (dn < chargeDistance2) {
+              var k = quad.charge / dn;
+              node.px -= dx * k;
+              node.py -= dy * k;
+            }
+            return true;
+          }
+          if (quad.point && dn && dn < chargeDistance2) {
+            var k = quad.pointCharge / dn;
+            node.px -= dx * k;
+            node.py -= dy * k;
+          }
+        }
+        return !quad.charge;
+      };
+    }
+    force.tick = function() {
+      if ((alpha *= .99) < .005) {
+        event.end({
+          type: "end",
+          alpha: alpha = 0
+        });
+        return true;
+      }
+      var n = nodes.length, m = links.length, q, i, o, s, t, l, k, x, y;
+      for (i = 0; i < m; ++i) {
+        o = links[i];
+        s = o.source;
+        t = o.target;
+        x = t.x - s.x;
+        y = t.y - s.y;
+        if (l = x * x + y * y) {
+          l = alpha * strengths[i] * ((l = Math.sqrt(l)) - distances[i]) / l;
+          x *= l;
+          y *= l;
+          t.x -= x * (k = s.weight / (t.weight + s.weight));
+          t.y -= y * k;
+          s.x += x * (k = 1 - k);
+          s.y += y * k;
+        }
+      }
+      if (k = alpha * gravity) {
+        x = size[0] / 2;
+        y = size[1] / 2;
+        i = -1;
+        if (k) while (++i < n) {
+          o = nodes[i];
+          o.x += (x - o.x) * k;
+          o.y += (y - o.y) * k;
+        }
+      }
+      if (charge) {
+        d3_layout_forceAccumulate(q = d3.geom.quadtree(nodes), alpha, charges);
+        i = -1;
+        while (++i < n) {
+          if (!(o = nodes[i]).fixed) {
+            q.visit(repulse(o));
+          }
+        }
+      }
+      i = -1;
+      while (++i < n) {
+        o = nodes[i];
+        if (o.fixed) {
+          o.x = o.px;
+          o.y = o.py;
+        } else {
+          o.x -= (o.px - (o.px = o.x)) * friction;
+          o.y -= (o.py - (o.py = o.y)) * friction;
+        }
+      }
+      event.tick({
+        type: "tick",
+        alpha: alpha
+      });
+    };
+    force.nodes = function(x) {
+      if (!arguments.length) return nodes;
+      nodes = x;
+      return force;
+    };
+    force.links = function(x) {
+      if (!arguments.length) return links;
+      links = x;
+      return force;
+    };
+    force.size = function(x) {
+      if (!arguments.length) return size;
+      size = x;
+      return force;
+    };
+    force.linkDistance = function(x) {
+      if (!arguments.length) return linkDistance;
+      linkDistance = typeof x === "function" ? x : +x;
+      return force;
+    };
+    force.distance = force.linkDistance;
+    force.linkStrength = function(x) {
+      if (!arguments.length) return linkStrength;
+      linkStrength = typeof x === "function" ? x : +x;
+      return force;
+    };
+    force.friction = function(x) {
+      if (!arguments.length) return friction;
+      friction = +x;
+      return force;
+    };
+    force.charge = function(x) {
+      if (!arguments.length) return charge;
+      charge = typeof x === "function" ? x : +x;
+      return force;
+    };
+    force.chargeDistance = function(x) {
+      if (!arguments.length) return Math.sqrt(chargeDistance2);
+      chargeDistance2 = x * x;
+      return force;
+    };
+    force.gravity = function(x) {
+      if (!arguments.length) return gravity;
+      gravity = +x;
+      return force;
+    };
+    force.theta = function(x) {
+      if (!arguments.length) return Math.sqrt(theta2);
+      theta2 = x * x;
+      return force;
+    };
+    force.alpha = function(x) {
+      if (!arguments.length) return alpha;
+      x = +x;
+      if (alpha) {
+        if (x > 0) alpha = x; else alpha = 0;
+      } else if (x > 0) {
+        event.start({
+          type: "start",
+          alpha: alpha = x
+        });
+        d3.timer(force.tick);
+      }
+      return force;
+    };
+    force.start = function() {
+      var i, n = nodes.length, m = links.length, w = size[0], h = size[1], neighbors, o;
+      for (i = 0; i < n; ++i) {
+        (o = nodes[i]).index = i;
+        o.weight = 0;
+      }
+      for (i = 0; i < m; ++i) {
+        o = links[i];
+        if (typeof o.source == "number") o.source = nodes[o.source];
+        if (typeof o.target == "number") o.target = nodes[o.target];
+        ++o.source.weight;
+        ++o.target.weight;
+      }
+      for (i = 0; i < n; ++i) {
+        o = nodes[i];
+        if (isNaN(o.x)) o.x = position("x", w);
+        if (isNaN(o.y)) o.y = position("y", h);
+        if (isNaN(o.px)) o.px = o.x;
+        if (isNaN(o.py)) o.py = o.y;
+      }
+      distances = [];
+      if (typeof linkDistance === "function") for (i = 0; i < m; ++i) distances[i] = +linkDistance.call(this, links[i], i); else for (i = 0; i < m; ++i) distances[i] = linkDistance;
+      strengths = [];
+      if (typeof linkStrength === "function") for (i = 0; i < m; ++i) strengths[i] = +linkStrength.call(this, links[i], i); else for (i = 0; i < m; ++i) strengths[i] = linkStrength;
+      charges = [];
+      if (typeof charge === "function") for (i = 0; i < n; ++i) charges[i] = +charge.call(this, nodes[i], i); else for (i = 0; i < n; ++i) charges[i] = charge;
+      function position(dimension, size) {
+        if (!neighbors) {
+          neighbors = new Array(n);
+          for (j = 0; j < n; ++j) {
+            neighbors[j] = [];
+          }
+          for (j = 0; j < m; ++j) {
+            var o = links[j];
+            neighbors[o.source.index].push(o.target);
+            neighbors[o.target.index].push(o.source);
+          }
+        }
+        var candidates = neighbors[i], j = -1, l = candidates.length, x;
+        while (++j < l) if (!isNaN(x = candidates[j][dimension])) return x;
+        return Math.random() * size;
+      }
+      return force.resume();
+    };
+    force.resume = function() {
+      return force.alpha(.1);
+    };
+    force.stop = function() {
+      return force.alpha(0);
+    };
+    force.drag = function() {
+      if (!drag) drag = d3.behavior.drag().origin(d3_identity).on("dragstart.force", d3_layout_forceDragstart).on("drag.force", dragmove).on("dragend.force", d3_layout_forceDragend);
+      if (!arguments.length) return drag;
+      this.on("mouseover.force", d3_layout_forceMouseover).on("mouseout.force", d3_layout_forceMouseout).call(drag);
+    };
+    function dragmove(d) {
+      d.px = d3.event.x, d.py = d3.event.y;
+      force.resume();
+    }
+    return d3.rebind(force, event, "on");
+  };
+  function d3_layout_forceDragstart(d) {
+    d.fixed |= 2;
+  }
+  function d3_layout_forceDragend(d) {
+    d.fixed &= ~6;
+  }
+  function d3_layout_forceMouseover(d) {
+    d.fixed |= 4;
+    d.px = d.x, d.py = d.y;
+  }
+  function d3_layout_forceMouseout(d) {
+    d.fixed &= ~4;
+  }
+  function d3_layout_forceAccumulate(quad, alpha, charges) {
+    var cx = 0, cy = 0;
+    quad.charge = 0;
+    if (!quad.leaf) {
+      var nodes = quad.nodes, n = nodes.length, i = -1, c;
+      while (++i < n) {
+        c = nodes[i];
+        if (c == null) continue;
+        d3_layout_forceAccumulate(c, alpha, charges);
+        quad.charge += c.charge;
+        cx += c.charge * c.cx;
+        cy += c.charge * c.cy;
+      }
+    }
+    if (quad.point) {
+      if (!quad.leaf) {
+        quad.point.x += Math.random() - .5;
+        quad.point.y += Math.random() - .5;
+      }
+      var k = alpha * charges[quad.point.index];
+      quad.charge += quad.pointCharge = k;
+      cx += k * quad.point.x;
+      cy += k * quad.point.y;
+    }
+    quad.cx = cx / quad.charge;
+    quad.cy = cy / quad.charge;
+  }
+  var d3_layout_forceLinkDistance = 20, d3_layout_forceLinkStrength = 1, d3_layout_forceChargeDistance2 = Infinity;
+  d3.layout.hierarchy = function() {
+    var sort = d3_layout_hierarchySort, children = d3_layout_hierarchyChildren, value = d3_layout_hierarchyValue;
+    function hierarchy(root) {
+      var stack = [ root ], nodes = [], node;
+      root.depth = 0;
+      while ((node = stack.pop()) != null) {
+        nodes.push(node);
+        if ((childs = children.call(hierarchy, node, node.depth)) && (n = childs.length)) {
+          var n, childs, child;
+          while (--n >= 0) {
+            stack.push(child = childs[n]);
+            child.parent = node;
+            child.depth = node.depth + 1;
+          }
+          if (value) node.value = 0;
+          node.children = childs;
+        } else {
+          if (value) node.value = +value.call(hierarchy, node, node.depth) || 0;
+          delete node.children;
+        }
+      }
+      d3_layout_hierarchyVisitAfter(root, function(node) {
+        var childs, parent;
+        if (sort && (childs = node.children)) childs.sort(sort);
+        if (value && (parent = node.parent)) parent.value += node.value;
+      });
+      return nodes;
+    }
+    hierarchy.sort = function(x) {
+      if (!arguments.length) return sort;
+      sort = x;
+      return hierarchy;
+    };
+    hierarchy.children = function(x) {
+      if (!arguments.length) return children;
+      children = x;
+      return hierarchy;
+    };
+    hierarchy.value = function(x) {
+      if (!arguments.length) return value;
+      value = x;
+      return hierarchy;
+    };
+    hierarchy.revalue = function(root) {
+      if (value) {
+        d3_layout_hierarchyVisitBefore(root, function(node) {
+          if (node.children) node.value = 0;
+        });
+        d3_layout_hierarchyVisitAfter(root, function(node) {
+          var parent;
+          if (!node.children) node.value = +value.call(hierarchy, node, node.depth) || 0;
+          if (parent = node.parent) parent.value += node.value;
+        });
+      }
+      return root;
+    };
+    return hierarchy;
+  };
+  function d3_layout_hierarchyRebind(object, hierarchy) {
+    d3.rebind(object, hierarchy, "sort", "children", "value");
+    object.nodes = object;
+    object.links = d3_layout_hierarchyLinks;
+    return object;
+  }
+  function d3_layout_hierarchyVisitBefore(node, callback) {
+    var nodes = [ node ];
+    while ((node = nodes.pop()) != null) {
+      callback(node);
+      if ((children = node.children) && (n = children.length)) {
+        var n, children;
+        while (--n >= 0) nodes.push(children[n]);
+      }
+    }
+  }
+  function d3_layout_hierarchyVisitAfter(node, callback) {
+    var nodes = [ node ], nodes2 = [];
+    while ((node = nodes.pop()) != null) {
+      nodes2.push(node);
+      if ((children = node.children) && (n = children.length)) {
+        var i = -1, n, children;
+        while (++i < n) nodes.push(children[i]);
+      }
+    }
+    while ((node = nodes2.pop()) != null) {
+      callback(node);
+    }
+  }
+  function d3_layout_hierarchyChildren(d) {
+    return d.children;
+  }
+  function d3_layout_hierarchyValue(d) {
+    return d.value;
+  }
+  function d3_layout_hierarchySort(a, b) {
+    return b.value - a.value;
+  }
+  function d3_layout_hierarchyLinks(nodes) {
+    return d3.merge(nodes.map(function(parent) {
+      return (parent.children || []).map(function(child) {
+        return {
+          source: parent,
+          target: child
+        };
+      });
+    }));
+  }
+  d3.layout.partition = function() {
+    var hierarchy = d3.layout.hierarchy(), size = [ 1, 1 ];
+    function position(node, x, dx, dy) {
+      var children = node.children;
+      node.x = x;
+      node.y = node.depth * dy;
+      node.dx = dx;
+      node.dy = dy;
+      if (children && (n = children.length)) {
+        var i = -1, n, c, d;
+        dx = node.value ? dx / node.value : 0;
+        while (++i < n) {
+          position(c = children[i], x, d = c.value * dx, dy);
+          x += d;
+        }
+      }
+    }
+    function depth(node) {
+      var children = node.children, d = 0;
+      if (children && (n = children.length)) {
+        var i = -1, n;
+        while (++i < n) d = Math.max(d, depth(children[i]));
+      }
+      return 1 + d;
+    }
+    function partition(d, i) {
+      var nodes = hierarchy.call(this, d, i);
+      position(nodes[0], 0, size[0], size[1] / depth(nodes[0]));
+      return nodes;
+    }
+    partition.size = function(x) {
+      if (!arguments.length) return size;
+      size = x;
+      return partition;
+    };
+    return d3_layout_hierarchyRebind(partition, hierarchy);
+  };
+  d3.layout.pie = function() {
+    var value = Number, sort = d3_layout_pieSortByValue, startAngle = 0, endAngle = τ, padAngle = 0;
+    function pie(data) {
+      var n = data.length, values = data.map(function(d, i) {
+        return +value.call(pie, d, i);
+      }), a = +(typeof startAngle === "function" ? startAngle.apply(this, arguments) : startAngle), da = (typeof endAngle === "function" ? endAngle.apply(this, arguments) : endAngle) - a, p = Math.min(Math.abs(da) / n, +(typeof padAngle === "function" ? padAngle.apply(this, arguments) : padAngle)), pa = p * (da < 0 ? -1 : 1), k = (da - n * pa) / d3.sum(values), index = d3.range(n), arcs = [], v;
+      if (sort != null) index.sort(sort === d3_layout_pieSortByValue ? function(i, j) {
+        return values[j] - values[i];
+      } : function(i, j) {
+        return sort(data[i], data[j]);
+      });
+      index.forEach(function(i) {
+        arcs[i] = {
+          data: data[i],
+          value: v = values[i],
+          startAngle: a,
+          endAngle: a += v * k + pa,
+          padAngle: p
+        };
+      });
+      return arcs;
+    }
+    pie.value = function(_) {
+      if (!arguments.length) return value;
+      value = _;
+      return pie;
+    };
+    pie.sort = function(_) {
+      if (!arguments.length) return sort;
+      sort = _;
+      return pie;
+    };
+    pie.startAngle = function(_) {
+      if (!arguments.length) return startAngle;
+      startAngle = _;
+      return pie;
+    };
+    pie.endAngle = function(_) {
+      if (!arguments.length) return endAngle;
+      endAngle = _;
+      return pie;
+    };
+    pie.padAngle = function(_) {
+      if (!arguments.length) return padAngle;
+      padAngle = _;
+      return pie;
+    };
+    return pie;
+  };
+  var d3_layout_pieSortByValue = {};
+  d3.layout.stack = function() {
+    var values = d3_identity, order = d3_layout_stackOrderDefault, offset = d3_layout_stackOffsetZero, out = d3_layout_stackOut, x = d3_layout_stackX, y = d3_layout_stackY;
+    function stack(data, index) {
+      if (!(n = data.length)) return data;
+      var series = data.map(function(d, i) {
+        return values.call(stack, d, i);
+      });
+      var points = series.map(function(d) {
+        return d.map(function(v, i) {
+          return [ x.call(stack, v, i), y.call(stack, v, i) ];
+        });
+      });
+      var orders = order.call(stack, points, index);
+      series = d3.permute(series, orders);
+      points = d3.permute(points, orders);
+      var offsets = offset.call(stack, points, index);
+      var m = series[0].length, n, i, j, o;
+      for (j = 0; j < m; ++j) {
+        out.call(stack, series[0][j], o = offsets[j], points[0][j][1]);
+        for (i = 1; i < n; ++i) {
+          out.call(stack, series[i][j], o += points[i - 1][j][1], points[i][j][1]);
+        }
+      }
+      return data;
+    }
+    stack.values = function(x) {
+      if (!arguments.length) return values;
+      values = x;
+      return stack;
+    };
+    stack.order = function(x) {
+      if (!arguments.length) return order;
+      order = typeof x === "function" ? x : d3_layout_stackOrders.get(x) || d3_layout_stackOrderDefault;
+      return stack;
+    };
+    stack.offset = function(x) {
+      if (!arguments.length) return offset;
+      offset = typeof x === "function" ? x : d3_layout_stackOffsets.get(x) || d3_layout_stackOffsetZero;
+      return stack;
+    };
+    stack.x = function(z) {
+      if (!arguments.length) return x;
+      x = z;
+      return stack;
+    };
+    stack.y = function(z) {
+      if (!arguments.length) return y;
+      y = z;
+      return stack;
+    };
+    stack.out = function(z) {
+      if (!arguments.length) return out;
+      out = z;
+      return stack;
+    };
+    return stack;
+  };
+  function d3_layout_stackX(d) {
+    return d.x;
+  }
+  function d3_layout_stackY(d) {
+    return d.y;
+  }
+  function d3_layout_stackOut(d, y0, y) {
+    d.y0 = y0;
+    d.y = y;
+  }
+  var d3_layout_stackOrders = d3.map({
+    "inside-out": function(data) {
+      var n = data.length, i, j, max = data.map(d3_layout_stackMaxIndex), sums = data.map(d3_layout_stackReduceSum), index = d3.range(n).sort(function(a, b) {
+        return max[a] - max[b];
+      }), top = 0, bottom = 0, tops = [], bottoms = [];
+      for (i = 0; i < n; ++i) {
+        j = index[i];
+        if (top < bottom) {
+          top += sums[j];
+          tops.push(j);
+        } else {
+          bottom += sums[j];
+          bottoms.push(j);
+        }
+      }
+      return bottoms.reverse().concat(tops);
+    },
+    reverse: function(data) {
+      return d3.range(data.length).reverse();
+    },
+    "default": d3_layout_stackOrderDefault
+  });
+  var d3_layout_stackOffsets = d3.map({
+    silhouette: function(data) {
+      var n = data.length, m = data[0].length, sums = [], max = 0, i, j, o, y0 = [];
+      for (j = 0; j < m; ++j) {
+        for (i = 0, o = 0; i < n; i++) o += data[i][j][1];
+        if (o > max) max = o;
+        sums.push(o);
+      }
+      for (j = 0; j < m; ++j) {
+        y0[j] = (max - sums[j]) / 2;
+      }
+      return y0;
+    },
+    wiggle: function(data) {
+      var n = data.length, x = data[0], m = x.length, i, j, k, s1, s2, s3, dx, o, o0, y0 = [];
+      y0[0] = o = o0 = 0;
+      for (j = 1; j < m; ++j) {
+        for (i = 0, s1 = 0; i < n; ++i) s1 += data[i][j][1];
+        for (i = 0, s2 = 0, dx = x[j][0] - x[j - 1][0]; i < n; ++i) {
+          for (k = 0, s3 = (data[i][j][1] - data[i][j - 1][1]) / (2 * dx); k < i; ++k) {
+            s3 += (data[k][j][1] - data[k][j - 1][1]) / dx;
+          }
+          s2 += s3 * data[i][j][1];
+        }
+        y0[j] = o -= s1 ? s2 / s1 * dx : 0;
+        if (o < o0) o0 = o;
+      }
+      for (j = 0; j < m; ++j) y0[j] -= o0;
+      return y0;
+    },
+    expand: function(data) {
+      var n = data.length, m = data[0].length, k = 1 / n, i, j, o, y0 = [];
+      for (j = 0; j < m; ++j) {
+        for (i = 0, o = 0; i < n; i++) o += data[i][j][1];
+        if (o) for (i = 0; i < n; i++) data[i][j][1] /= o; else for (i = 0; i < n; i++) data[i][j][1] = k;
+      }
+      for (j = 0; j < m; ++j) y0[j] = 0;
+      return y0;
+    },
+    zero: d3_layout_stackOffsetZero
+  });
+  function d3_layout_stackOrderDefault(data) {
+    return d3.range(data.length);
+  }
+  function d3_layout_stackOffsetZero(data) {
+    var j = -1, m = data[0].length, y0 = [];
+    while (++j < m) y0[j] = 0;
+    return y0;
+  }
+  function d3_layout_stackMaxIndex(array) {
+    var i = 1, j = 0, v = array[0][1], k, n = array.length;
+    for (;i < n; ++i) {
+      if ((k = array[i][1]) > v) {
+        j = i;
+        v = k;
+      }
+    }
+    return j;
+  }
+  function d3_layout_stackReduceSum(d) {
+    return d.reduce(d3_layout_stackSum, 0);
+  }
+  function d3_layout_stackSum(p, d) {
+    return p + d[1];
+  }
+  d3.layout.histogram = function() {
+    var frequency = true, valuer = Number, ranger = d3_layout_histogramRange, binner = d3_layout_histogramBinSturges;
+    function histogram(data, i) {
+      var bins = [], values = data.map(valuer, this), range = ranger.call(this, values, i), thresholds = binner.call(this, range, values, i), bin, i = -1, n = values.length, m = thresholds.length - 1, k = frequency ? 1 : 1 / n, x;
+      while (++i < m) {
+        bin = bins[i] = [];
+        bin.dx = thresholds[i + 1] - (bin.x = thresholds[i]);
+        bin.y = 0;
+      }
+      if (m > 0) {
+        i = -1;
+        while (++i < n) {
+          x = values[i];
+          if (x >= range[0] && x <= range[1]) {
+            bin = bins[d3.bisect(thresholds, x, 1, m) - 1];
+            bin.y += k;
+            bin.push(data[i]);
+          }
+        }
+      }
+      return bins;
+    }
+    histogram.value = function(x) {
+      if (!arguments.length) return valuer;
+      valuer = x;
+      return histogram;
+    };
+    histogram.range = function(x) {
+      if (!arguments.length) return ranger;
+      ranger = d3_functor(x);
+      return histogram;
+    };
+    histogram.bins = function(x) {
+      if (!arguments.length) return binner;
+      binner = typeof x === "number" ? function(range) {
+        return d3_layout_histogramBinFixed(range, x);
+      } : d3_functor(x);
+      return histogram;
+    };
+    histogram.frequency = function(x) {
+      if (!arguments.length) return frequency;
+      frequency = !!x;
+      return histogram;
+    };
+    return histogram;
+  };
+  function d3_layout_histogramBinSturges(range, values) {
+    return d3_layout_histogramBinFixed(range, Math.ceil(Math.log(values.length) / Math.LN2 + 1));
+  }
+  function d3_layout_histogramBinFixed(range, n) {
+    var x = -1, b = +range[0], m = (range[1] - b) / n, f = [];
+    while (++x <= n) f[x] = m * x + b;
+    return f;
+  }
+  function d3_layout_histogramRange(values) {
+    return [ d3.min(values), d3.max(values) ];
+  }
+  d3.layout.pack = function() {
+    var hierarchy = d3.layout.hierarchy().sort(d3_layout_packSort), padding = 0, size = [ 1, 1 ], radius;
+    function pack(d, i) {
+      var nodes = hierarchy.call(this, d, i), root = nodes[0], w = size[0], h = size[1], r = radius == null ? Math.sqrt : typeof radius === "function" ? radius : function() {
+        return radius;
+      };
+      root.x = root.y = 0;
+      d3_layout_hierarchyVisitAfter(root, function(d) {
+        d.r = +r(d.value);
+      });
+      d3_layout_hierarchyVisitAfter(root, d3_layout_packSiblings);
+      if (padding) {
+        var dr = padding * (radius ? 1 : Math.max(2 * root.r / w, 2 * root.r / h)) / 2;
+        d3_layout_hierarchyVisitAfter(root, function(d) {
+          d.r += dr;
+        });
+        d3_layout_hierarchyVisitAfter(root, d3_layout_packSiblings);
+        d3_layout_hierarchyVisitAfter(root, function(d) {
+          d.r -= dr;
+        });
+      }
+      d3_layout_packTransform(root, w / 2, h / 2, radius ? 1 : 1 / Math.max(2 * root.r / w, 2 * root.r / h));
+      return nodes;
+    }
+    pack.size = function(_) {
+      if (!arguments.length) return size;
+      size = _;
+      return pack;
+    };
+    pack.radius = function(_) {
+      if (!arguments.length) return radius;
+      radius = _ == null || typeof _ === "function" ? _ : +_;
+      return pack;
+    };
+    pack.padding = function(_) {
+      if (!arguments.length) return padding;
+      padding = +_;
+      return pack;
+    };
+    return d3_layout_hierarchyRebind(pack, hierarchy);
+  };
+  function d3_layout_packSort(a, b) {
+    return a.value - b.value;
+  }
+  function d3_layout_packInsert(a, b) {
+    var c = a._pack_next;
+    a._pack_next = b;
+    b._pack_prev = a;
+    b._pack_next = c;
+    c._pack_prev = b;
+  }
+  function d3_layout_packSplice(a, b) {
+    a._pack_next = b;
+    b._pack_prev = a;
+  }
+  function d3_layout_packIntersects(a, b) {
+    var dx = b.x - a.x, dy = b.y - a.y, dr = a.r + b.r;
+    return .999 * dr * dr > dx * dx + dy * dy;
+  }
+  function d3_layout_packSiblings(node) {
+    if (!(nodes = node.children) || !(n = nodes.length)) return;
+    var nodes, xMin = Infinity, xMax = -Infinity, yMin = Infinity, yMax = -Infinity, a, b, c, i, j, k, n;
+    function bound(node) {
+      xMin = Math.min(node.x - node.r, xMin);
+      xMax = Math.max(node.x + node.r, xMax);
+      yMin = Math.min(node.y - node.r, yMin);
+      yMax = Math.max(node.y + node.r, yMax);
+    }
+    nodes.forEach(d3_layout_packLink);
+    a = nodes[0];
+    a.x = -a.r;
+    a.y = 0;
+    bound(a);
+    if (n > 1) {
+      b = nodes[1];
+      b.x = b.r;
+      b.y = 0;
+      bound(b);
+      if (n > 2) {
+        c = nodes[2];
+        d3_layout_packPlace(a, b, c);
+        bound(c);
+        d3_layout_packInsert(a, c);
+        a._pack_prev = c;
+        d3_layout_packInsert(c, b);
+        b = a._pack_next;
+        for (i = 3; i < n; i++) {
+          d3_layout_packPlace(a, b, c = nodes[i]);
+          var isect = 0, s1 = 1, s2 = 1;
+          for (j = b._pack_next; j !== b; j = j._pack_next, s1++) {
+            if (d3_layout_packIntersects(j, c)) {
+              isect = 1;
+              break;
+            }
+          }
+          if (isect == 1) {
+            for (k = a._pack_prev; k !== j._pack_prev; k = k._pack_prev, s2++) {
+              if (d3_layout_packIntersects(k, c)) {
+                break;
+              }
+            }
+          }
+          if (isect) {
+            if (s1 < s2 || s1 == s2 && b.r < a.r) d3_layout_packSplice(a, b = j); else d3_layout_packSplice(a = k, b);
+            i--;
+          } else {
+            d3_layout_packInsert(a, c);
+            b = c;
+            bound(c);
+          }
+        }
+      }
+    }
+    var cx = (xMin + xMax) / 2, cy = (yMin + yMax) / 2, cr = 0;
+    for (i = 0; i < n; i++) {
+      c = nodes[i];
+      c.x -= cx;
+      c.y -= cy;
+      cr = Math.max(cr, c.r + Math.sqrt(c.x * c.x + c.y * c.y));
+    }
+    node.r = cr;
+    nodes.forEach(d3_layout_packUnlink);
+  }
+  function d3_layout_packLink(node) {
+    node._pack_next = node._pack_prev = node;
+  }
+  function d3_layout_packUnlink(node) {
+    delete node._pack_next;
+    delete node._pack_prev;
+  }
+  function d3_layout_packTransform(node, x, y, k) {
+    var children = node.children;
+    node.x = x += k * node.x;
+    node.y = y += k * node.y;
+    node.r *= k;
+    if (children) {
+      var i = -1, n = children.length;
+      while (++i < n) d3_layout_packTransform(children[i], x, y, k);
+    }
+  }
+  function d3_layout_packPlace(a, b, c) {
+    var db = a.r + c.r, dx = b.x - a.x, dy = b.y - a.y;
+    if (db && (dx || dy)) {
+      var da = b.r + c.r, dc = dx * dx + dy * dy;
+      da *= da;
+      db *= db;
+      var x = .5 + (db - da) / (2 * dc), y = Math.sqrt(Math.max(0, 2 * da * (db + dc) - (db -= dc) * db - da * da)) / (2 * dc);
+      c.x = a.x + x * dx + y * dy;
+      c.y = a.y + x * dy - y * dx;
+    } else {
+      c.x = a.x + db;
+      c.y = a.y;
+    }
+  }
+  d3.layout.tree = function() {
+    var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ], nodeSize = null;
+    function tree(d, i) {
+      var nodes = hierarchy.call(this, d, i), root0 = nodes[0], root1 = wrapTree(root0);
+      d3_layout_hierarchyVisitAfter(root1, firstWalk), root1.parent.m = -root1.z;
+      d3_layout_hierarchyVisitBefore(root1, secondWalk);
+      if (nodeSize) d3_layout_hierarchyVisitBefore(root0, sizeNode); else {
+        var left = root0, right = root0, bottom = root0;
+        d3_layout_hierarchyVisitBefore(root0, function(node) {
+          if (node.x < left.x) left = node;
+          if (node.x > right.x) right = node;
+          if (node.depth > bottom.depth) bottom = node;
+        });
+        var tx = separation(left, right) / 2 - left.x, kx = size[0] / (right.x + separation(right, left) / 2 + tx), ky = size[1] / (bottom.depth || 1);
+        d3_layout_hierarchyVisitBefore(root0, function(node) {
+          node.x = (node.x + tx) * kx;
+          node.y = node.depth * ky;
+        });
+      }
+      return nodes;
+    }
+    function wrapTree(root0) {
+      var root1 = {
+        A: null,
+        children: [ root0 ]
+      }, queue = [ root1 ], node1;
+      while ((node1 = queue.pop()) != null) {
+        for (var children = node1.children, child, i = 0, n = children.length; i < n; ++i) {
+          queue.push((children[i] = child = {
+            _: children[i],
+            parent: node1,
+            children: (child = children[i].children) && child.slice() || [],
+            A: null,
+            a: null,
+            z: 0,
+            m: 0,
+            c: 0,
+            s: 0,
+            t: null,
+            i: i
+          }).a = child);
+        }
+      }
+      return root1.children[0];
+    }
+    function firstWalk(v) {
+      var children = v.children, siblings = v.parent.children, w = v.i ? siblings[v.i - 1] : null;
+      if (children.length) {
+        d3_layout_treeShift(v);
+        var midpoint = (children[0].z + children[children.length - 1].z) / 2;
+        if (w) {
+          v.z = w.z + separation(v._, w._);
+          v.m = v.z - midpoint;
+        } else {
+          v.z = midpoint;
+        }
+      } else if (w) {
+        v.z = w.z + separation(v._, w._);
+      }
+      v.parent.A = apportion(v, w, v.parent.A || siblings[0]);
+    }
+    function secondWalk(v) {
+      v._.x = v.z + v.parent.m;
+      v.m += v.parent.m;
+    }
+    function apportion(v, w, ancestor) {
+      if (w) {
+        var vip = v, vop = v, vim = w, vom = vip.parent.children[0], sip = vip.m, sop = vop.m, sim = vim.m, som = vom.m, shift;
+        while (vim = d3_layout_treeRight(vim), vip = d3_layout_treeLeft(vip), vim && vip) {
+          vom = d3_layout_treeLeft(vom);
+          vop = d3_layout_treeRight(vop);
+          vop.a = v;
+          shift = vim.z + sim - vip.z - sip + separation(vim._, vip._);
+          if (shift > 0) {
+            d3_layout_treeMove(d3_layout_treeAncestor(vim, v, ancestor), v, shift);
+            sip += shift;
+            sop += shift;
+          }
+          sim += vim.m;
+          sip += vip.m;
+          som += vom.m;
+          sop += vop.m;
+        }
+        if (vim && !d3_layout_treeRight(vop)) {
+          vop.t = vim;
+          vop.m += sim - sop;
+        }
+        if (vip && !d3_layout_treeLeft(vom)) {
+          vom.t = vip;
+          vom.m += sip - som;
+          ancestor = v;
+        }
+      }
+      return ancestor;
+    }
+    function sizeNode(node) {
+      node.x *= size[0];
+      node.y = node.depth * size[1];
+    }
+    tree.separation = function(x) {
+      if (!arguments.length) return separation;
+      separation = x;
+      return tree;
+    };
+    tree.size = function(x) {
+      if (!arguments.length) return nodeSize ? null : size;
+      nodeSize = (size = x) == null ? sizeNode : null;
+      return tree;
+    };
+    tree.nodeSize = function(x) {
+      if (!arguments.length) return nodeSize ? size : null;
+      nodeSize = (size = x) == null ? null : sizeNode;
+      return tree;
+    };
+    return d3_layout_hierarchyRebind(tree, hierarchy);
+  };
+  function d3_layout_treeSeparation(a, b) {
+    return a.parent == b.parent ? 1 : 2;
+  }
+  function d3_layout_treeLeft(v) {
+    var children = v.children;
+    return children.length ? children[0] : v.t;
+  }
+  function d3_layout_treeRight(v) {
+    var children = v.children, n;
+    return (n = children.length) ? children[n - 1] : v.t;
+  }
+  function d3_layout_treeMove(wm, wp, shift) {
+    var change = shift / (wp.i - wm.i);
+    wp.c -= change;
+    wp.s += shift;
+    wm.c += change;
+    wp.z += shift;
+    wp.m += shift;
+  }
+  function d3_layout_treeShift(v) {
+    var shift = 0, change = 0, children = v.children, i = children.length, w;
+    while (--i >= 0) {
+      w = children[i];
+      w.z += shift;
+      w.m += shift;
+      shift += w.s + (change += w.c);
+    }
+  }
+  function d3_layout_treeAncestor(vim, v, ancestor) {
+    return vim.a.parent === v.parent ? vim.a : ancestor;
+  }
+  d3.layout.cluster = function() {
+    var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ], nodeSize = false;
+    function cluster(d, i) {
+      var nodes = hierarchy.call(this, d, i), root = nodes[0], previousNode, x = 0;
+      d3_layout_hierarchyVisitAfter(root, function(node) {
+        var children = node.children;
+        if (children && children.length) {
+          node.x = d3_layout_clusterX(children);
+          node.y = d3_layout_clusterY(children);
+        } else {
+          node.x = previousNode ? x += separation(node, previousNode) : 0;
+          node.y = 0;
+          previousNode = node;
+        }
+      });
+      var left = d3_layout_clusterLeft(root), right = d3_layout_clusterRight(root), x0 = left.x - separation(left, right) / 2, x1 = right.x + separation(right, left) / 2;
+      d3_layout_hierarchyVisitAfter(root, nodeSize ? function(node) {
+        node.x = (node.x - root.x) * size[0];
+        node.y = (root.y - node.y) * size[1];
+      } : function(node) {
+        node.x = (node.x - x0) / (x1 - x0) * size[0];
+        node.y = (1 - (root.y ? node.y / root.y : 1)) * size[1];
+      });
+      return nodes;
+    }
+    cluster.separation = function(x) {
+      if (!arguments.length) return separation;
+      separation = x;
+      return cluster;
+    };
+    cluster.size = function(x) {
+      if (!arguments.length) return nodeSize ? null : size;
+      nodeSize = (size = x) == null;
+      return cluster;
+    };
+    cluster.nodeSize = function(x) {
+      if (!arguments.length) return nodeSize ? size : null;
+      nodeSize = (size = x) != null;
+      return cluster;
+    };
+    return d3_layout_hierarchyRebind(cluster, hierarchy);
+  };
+  function d3_layout_clusterY(children) {
+    return 1 + d3.max(children, function(child) {
+      return child.y;
+    });
+  }
+  function d3_layout_clusterX(children) {
+    return children.reduce(function(x, child) {
+      return x + child.x;
+    }, 0) / children.length;
+  }
+  function d3_layout_clusterLeft(node) {
+    var children = node.children;
+    return children && children.length ? d3_layout_clusterLeft(children[0]) : node;
+  }
+  function d3_layout_clusterRight(node) {
+    var children = node.children, n;
+    return children && (n = children.length) ? d3_layout_clusterRight(children[n - 1]) : node;
+  }
+  d3.layout.treemap = function() {
+    var hierarchy = d3.layout.hierarchy(), round = Math.round, size = [ 1, 1 ], padding = null, pad = d3_layout_treemapPadNull, sticky = false, stickies, mode = "squarify", ratio = .5 * (1 + Math.sqrt(5));
+    function scale(children, k) {
+      var i = -1, n = children.length, child, area;
+      while (++i < n) {
+        area = (child = children[i]).value * (k < 0 ? 0 : k);
+        child.area = isNaN(area) || area <= 0 ? 0 : area;
+      }
+    }
+    function squarify(node) {
+      var children = node.children;
+      if (children && children.length) {
+        var rect = pad(node), row = [], remaining = children.slice(), child, best = Infinity, score, u = mode === "slice" ? rect.dx : mode === "dice" ? rect.dy : mode === "slice-dice" ? node.depth & 1 ? rect.dy : rect.dx : Math.min(rect.dx, rect.dy), n;
+        scale(remaining, rect.dx * rect.dy / node.value);
+        row.area = 0;
+        while ((n = remaining.length) > 0) {
+          row.push(child = remaining[n - 1]);
+          row.area += child.area;
+          if (mode !== "squarify" || (score = worst(row, u)) <= best) {
+            remaining.pop();
+            best = score;
+          } else {
+            row.area -= row.pop().area;
+            position(row, u, rect, false);
+            u = Math.min(rect.dx, rect.dy);
+            row.length = row.area = 0;
+            best = Infinity;
+          }
+        }
+        if (row.length) {
+          position(row, u, rect, true);
+          row.length = row.area = 0;
+        }
+        children.forEach(squarify);
+      }
+    }
+    function stickify(node) {
+      var children = node.children;
+      if (children && children.length) {
+        var rect = pad(node), remaining = children.slice(), child, row = [];
+        scale(remaining, rect.dx * rect.dy / node.value);
+        row.area = 0;
+        while (child = remaining.pop()) {
+          row.push(child);
+          row.area += child.area;
+          if (child.z != null) {
+            position(row, child.z ? rect.dx : rect.dy, rect, !remaining.length);
+            row.length = row.area = 0;
+          }
+        }
+        children.forEach(stickify);
+      }
+    }
+    function worst(row, u) {
+      var s = row.area, r, rmax = 0, rmin = Infinity, i = -1, n = row.length;
+      while (++i < n) {
+        if (!(r = row[i].area)) continue;
+        if (r < rmin) rmin = r;
+        if (r > rmax) rmax = r;
+      }
+      s *= s;
+      u *= u;
+      return s ? Math.max(u * rmax * ratio / s, s / (u * rmin * ratio)) : Infinity;
+    }
+    function position(row, u, rect, flush) {
+      var i = -1, n = row.length, x = rect.x, y = rect.y, v = u ? round(row.area / u) : 0, o;
+      if (u == rect.dx) {
+        if (flush || v > rect.dy) v = rect.dy;
+        while (++i < n) {
+          o = row[i];
+          o.x = x;
+          o.y = y;
+          o.dy = v;
+          x += o.dx = Math.min(rect.x + rect.dx - x, v ? round(o.area / v) : 0);
+        }
+        o.z = true;
+        o.dx += rect.x + rect.dx - x;
+        rect.y += v;
+        rect.dy -= v;
+      } else {
+        if (flush || v > rect.dx) v = rect.dx;
+        while (++i < n) {
+          o = row[i];
+          o.x = x;
+          o.y = y;
+          o.dx = v;
+          y += o.dy = Math.min(rect.y + rect.dy - y, v ? round(o.area / v) : 0);
+        }
+        o.z = false;
+        o.dy += rect.y + rect.dy - y;
+        rect.x += v;
+        rect.dx -= v;
+      }
+    }
+    function treemap(d) {
+      var nodes = stickies || hierarchy(d), root = nodes[0];
+      root.x = 0;
+      root.y = 0;
+      root.dx = size[0];
+      root.dy = size[1];
+      if (stickies) hierarchy.revalue(root);
+      scale([ root ], root.dx * root.dy / root.value);
+      (stickies ? stickify : squarify)(root);
+      if (sticky) stickies = nodes;
+      return nodes;
+    }
+    treemap.size = function(x) {
+      if (!arguments.length) return size;
+      size = x;
+      return treemap;
+    };
+    treemap.padding = function(x) {
+      if (!arguments.length) return padding;
+      function padFunction(node) {
+        var p = x.call(treemap, node, node.depth);
+        return p == null ? d3_layout_treemapPadNull(node) : d3_layout_treemapPad(node, typeof p === "number" ? [ p, p, p, p ] : p);
+      }
+      function padConstant(node) {
+        return d3_layout_treemapPad(node, x);
+      }
+      var type;
+      pad = (padding = x) == null ? d3_layout_treemapPadNull : (type = typeof x) === "function" ? padFunction : type === "number" ? (x = [ x, x, x, x ], 
+      padConstant) : padConstant;
+      return treemap;
+    };
+    treemap.round = function(x) {
+      if (!arguments.length) return round != Number;
+      round = x ? Math.round : Number;
+      return treemap;
+    };
+    treemap.sticky = function(x) {
+      if (!arguments.length) return sticky;
+      sticky = x;
+      stickies = null;
+      return treemap;
+    };
+    treemap.ratio = function(x) {
+      if (!arguments.length) return ratio;
+      ratio = x;
+      return treemap;
+    };
+    treemap.mode = function(x) {
+      if (!arguments.length) return mode;
+      mode = x + "";
+      return treemap;
+    };
+    return d3_layout_hierarchyRebind(treemap, hierarchy);
+  };
+  function d3_layout_treemapPadNull(node) {
+    return {
+      x: node.x,
+      y: node.y,
+      dx: node.dx,
+      dy: node.dy
+    };
+  }
+  function d3_layout_treemapPad(node, padding) {
+    var x = node.x + padding[3], y = node.y + padding[0], dx = node.dx - padding[1] - padding[3], dy = node.dy - padding[0] - padding[2];
+    if (dx < 0) {
+      x += dx / 2;
+      dx = 0;
+    }
+    if (dy < 0) {
+      y += dy / 2;
+      dy = 0;
+    }
+    return {
+      x: x,
+      y: y,
+      dx: dx,
+      dy: dy
+    };
+  }
+  d3.random = {
+    normal: function(µ, σ) {
+      var n = arguments.length;
+      if (n < 2) σ = 1;
+      if (n < 1) µ = 0;
+      return function() {
+        var x, y, r;
+        do {
+          x = Math.random() * 2 - 1;
+          y = Math.random() * 2 - 1;
+          r = x * x + y * y;
+        } while (!r || r > 1);
+        return µ + σ * x * Math.sqrt(-2 * Math.log(r) / r);
+      };
+    },
+    logNormal: function() {
+      var random = d3.random.normal.apply(d3, arguments);
+      return function() {
+        return Math.exp(random());
+      };
+    },
+    bates: function(m) {
+      var random = d3.random.irwinHall(m);
+      return function() {
+        return random() / m;
+      };
+    },
+    irwinHall: function(m) {
+      return function() {
+        for (var s = 0, j = 0; j < m; j++) s += Math.random();
+        return s;
+      };
+    }
+  };
+  d3.scale = {};
+  function d3_scaleExtent(domain) {
+    var start = domain[0], stop = domain[domain.length - 1];
+    return start < stop ? [ start, stop ] : [ stop, start ];
+  }
+  function d3_scaleRange(scale) {
+    return scale.rangeExtent ? scale.rangeExtent() : d3_scaleExtent(scale.range());
+  }
+  function d3_scale_bilinear(domain, range, uninterpolate, interpolate) {
+    var u = uninterpolate(domain[0], domain[1]), i = interpolate(range[0], range[1]);
+    return function(x) {
+      return i(u(x));
+    };
+  }
+  function d3_scale_nice(domain, nice) {
+    var i0 = 0, i1 = domain.length - 1, x0 = domain[i0], x1 = domain[i1], dx;
+    if (x1 < x0) {
+      dx = i0, i0 = i1, i1 = dx;
+      dx = x0, x0 = x1, x1 = dx;
+    }
+    domain[i0] = nice.floor(x0);
+    domain[i1] = nice.ceil(x1);
+    return domain;
+  }
+  function d3_scale_niceStep(step) {
+    return step ? {
+      floor: function(x) {
+        return Math.floor(x / step) * step;
+      },
+      ceil: function(x) {
+        return Math.ceil(x / step) * step;
+      }
+    } : d3_scale_niceIdentity;
+  }
+  var d3_scale_niceIdentity = {
+    floor: d3_identity,
+    ceil: d3_identity
+  };
+  function d3_scale_polylinear(domain, range, uninterpolate, interpolate) {
+    var u = [], i = [], j = 0, k = Math.min(domain.length, range.length) - 1;
+    if (domain[k] < domain[0]) {
+      domain = domain.slice().reverse();
+      range = range.slice().reverse();
+    }
+    while (++j <= k) {
+      u.push(uninterpolate(domain[j - 1], domain[j]));
+      i.push(interpolate(range[j - 1], range[j]));
+    }
+    return function(x) {
+      var j = d3.bisect(domain, x, 1, k) - 1;
+      return i[j](u[j](x));
+    };
+  }
+  d3.scale.linear = function() {
+    return d3_scale_linear([ 0, 1 ], [ 0, 1 ], d3_interpolate, false);
+  };
+  function d3_scale_linear(domain, range, interpolate, clamp) {
+    var output, input;
+    function rescale() {
+      var linear = Math.min(domain.length, range.length) > 2 ? d3_scale_polylinear : d3_scale_bilinear, uninterpolate = clamp ? d3_uninterpolateClamp : d3_uninterpolateNumber;
+      output = linear(domain, range, uninterpolate, interpolate);
+      input = linear(range, domain, uninterpolate, d3_interpolate);
+      return scale;
+    }
+    function scale(x) {
+      return output(x);
+    }
+    scale.invert = function(y) {
+      return input(y);
+    };
+    scale.domain = function(x) {
+      if (!arguments.length) return domain;
+      domain = x.map(Number);
+      return rescale();
+    };
+    scale.range = function(x) {
+      if (!arguments.length) return range;
+      range = x;
+      return rescale();
+    };
+    scale.rangeRound = function(x) {
+      return scale.range(x).interpolate(d3_interpolateRound);
+    };
+    scale.clamp = function(x) {
+      if (!arguments.length) return clamp;
+      clamp = x;
+      return rescale();
+    };
+    scale.interpolate = function(x) {
+      if (!arguments.length) return interpolate;
+      interpolate = x;
+      return rescale();
+    };
+    scale.ticks = function(m) {
+      return d3_scale_linearTicks(domain, m);
+    };
+    scale.tickFormat = function(m, format) {
+      return d3_scale_linearTickFormat(domain, m, format);
+    };
+    scale.nice = function(m) {
+      d3_scale_linearNice(domain, m);
+      return rescale();
+    };
+    scale.copy = function() {
+      return d3_scale_linear(domain, range, interpolate, clamp);
+    };
+    return rescale();
+  }
+  function d3_scale_linearRebind(scale, linear) {
+    return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp");
+  }
+  function d3_scale_linearNice(domain, m) {
+    return d3_scale_nice(domain, d3_scale_niceStep(d3_scale_linearTickRange(domain, m)[2]));
+  }
+  function d3_scale_linearTickRange(domain, m) {
+    if (m == null) m = 10;
+    var extent = d3_scaleExtent(domain), span = extent[1] - extent[0], step = Math.pow(10, Math.floor(Math.log(span / m) / Math.LN10)), err = m / span * step;
+    if (err <= .15) step *= 10; else if (err <= .35) step *= 5; else if (err <= .75) step *= 2;
+    extent[0] = Math.ceil(extent[0] / step) * step;
+    extent[1] = Math.floor(extent[1] / step) * step + step * .5;
+    extent[2] = step;
+    return extent;
+  }
+  function d3_scale_linearTicks(domain, m) {
+    return d3.range.apply(d3, d3_scale_linearTickRange(domain, m));
+  }
+  function d3_scale_linearTickFormat(domain, m, format) {
+    var range = d3_scale_linearTickRange(domain, m);
+    if (format) {
+      var match = d3_format_re.exec(format);
+      match.shift();
+      if (match[8] === "s") {
+        var prefix = d3.formatPrefix(Math.max(abs(range[0]), abs(range[1])));
+        if (!match[7]) match[7] = "." + d3_scale_linearPrecision(prefix.scale(range[2]));
+        match[8] = "f";
+        format = d3.format(match.join(""));
+        return function(d) {
+          return format(prefix.scale(d)) + prefix.symbol;
+        };
+      }
+      if (!match[7]) match[7] = "." + d3_scale_linearFormatPrecision(match[8], range);
+      format = match.join("");
+    } else {
+      format = ",." + d3_scale_linearPrecision(range[2]) + "f";
+    }
+    return d3.format(format);
+  }
+  var d3_scale_linearFormatSignificant = {
+    s: 1,
+    g: 1,
+    p: 1,
+    r: 1,
+    e: 1
+  };
+  function d3_scale_linearPrecision(value) {
+    return -Math.floor(Math.log(value) / Math.LN10 + .01);
+  }
+  function d3_scale_linearFormatPrecision(type, range) {
+    var p = d3_scale_linearPrecision(range[2]);
+    return type in d3_scale_linearFormatSignificant ? Math.abs(p - d3_scale_linearPrecision(Math.max(abs(range[0]), abs(range[1])))) + +(type !== "e") : p - (type === "%") * 2;
+  }
+  d3.scale.log = function() {
+    return d3_scale_log(d3.scale.linear().domain([ 0, 1 ]), 10, true, [ 1, 10 ]);
+  };
+  function d3_scale_log(linear, base, positive, domain) {
+    function log(x) {
+      return (positive ? Math.log(x < 0 ? 0 : x) : -Math.log(x > 0 ? 0 : -x)) / Math.log(base);
+    }
+    function pow(x) {
+      return positive ? Math.pow(base, x) : -Math.pow(base, -x);
+    }
+    function scale(x) {
+      return linear(log(x));
+    }
+    scale.invert = function(x) {
+      return pow(linear.invert(x));
+    };
+    scale.domain = function(x) {
+      if (!arguments.length) return domain;
+      positive = x[0] >= 0;
+      linear.domain((domain = x.map(Number)).map(log));
+      return scale;
+    };
+    scale.base = function(_) {
+      if (!arguments.length) return base;
+      base = +_;
+      linear.domain(domain.map(log));
+      return scale;
+    };
+    scale.nice = function() {
+      var niced = d3_scale_nice(domain.map(log), positive ? Math : d3_scale_logNiceNegative);
+      linear.domain(niced);
+      domain = niced.map(pow);
+      return scale;
+    };
+    scale.ticks = function() {
+      var extent = d3_scaleExtent(domain), ticks = [], u = extent[0], v = extent[1], i = Math.floor(log(u)), j = Math.ceil(log(v)), n = base % 1 ? 2 : base;
+      if (isFinite(j - i)) {
+        if (positive) {
+          for (;i < j; i++) for (var k = 1; k < n; k++) ticks.push(pow(i) * k);
+          ticks.push(pow(i));
+        } else {
+          ticks.push(pow(i));
+          for (;i++ < j; ) for (var k = n - 1; k > 0; k--) ticks.push(pow(i) * k);
+        }
+        for (i = 0; ticks[i] < u; i++) {}
+        for (j = ticks.length; ticks[j - 1] > v; j--) {}
+        ticks = ticks.slice(i, j);
+      }
+      return ticks;
+    };
+    scale.tickFormat = function(n, format) {
+      if (!arguments.length) return d3_scale_logFormat;
+      if (arguments.length < 2) format = d3_scale_logFormat; else if (typeof format !== "function") format = d3.format(format);
+      var k = Math.max(.1, n / scale.ticks().length), f = positive ? (e = 1e-12, Math.ceil) : (e = -1e-12, 
+      Math.floor), e;
+      return function(d) {
+        return d / pow(f(log(d) + e)) <= k ? format(d) : "";
+      };
+    };
+    scale.copy = function() {
+      return d3_scale_log(linear.copy(), base, positive, domain);
+    };
+    return d3_scale_linearRebind(scale, linear);
+  }
+  var d3_scale_logFormat = d3.format(".0e"), d3_scale_logNiceNegative = {
+    floor: function(x) {
+      return -Math.ceil(-x);
+    },
+    ceil: function(x) {
+      return -Math.floor(-x);
+    }
+  };
+  d3.scale.pow = function() {
+    return d3_scale_pow(d3.scale.linear(), 1, [ 0, 1 ]);
+  };
+  function d3_scale_pow(linear, exponent, domain) {
+    var powp = d3_scale_powPow(exponent), powb = d3_scale_powPow(1 / exponent);
+    function scale(x) {
+      return linear(powp(x));
+    }
+    scale.invert = function(x) {
+      return powb(linear.invert(x));
+    };
+    scale.domain = function(x) {
+      if (!arguments.length) return domain;
+      linear.domain((domain = x.map(Number)).map(powp));
+      return scale;
+    };
+    scale.ticks = function(m) {
+      return d3_scale_linearTicks(domain, m);
+    };
+    scale.tickFormat = function(m, format) {
+      return d3_scale_linearTickFormat(domain, m, format);
+    };
+    scale.nice = function(m) {
+      return scale.domain(d3_scale_linearNice(domain, m));
+    };
+    scale.exponent = function(x) {
+      if (!arguments.length) return exponent;
+      powp = d3_scale_powPow(exponent = x);
+      powb = d3_scale_powPow(1 / exponent);
+      linear.domain(domain.map(powp));
+      return scale;
+    };
+    scale.copy = function() {
+      return d3_scale_pow(linear.copy(), exponent, domain);
+    };
+    return d3_scale_linearRebind(scale, linear);
+  }
+  function d3_scale_powPow(e) {
+    return function(x) {
+      return x < 0 ? -Math.pow(-x, e) : Math.pow(x, e);
+    };
+  }
+  d3.scale.sqrt = function() {
+    return d3.scale.pow().exponent(.5);
+  };
+  d3.scale.ordinal = function() {
+    return d3_scale_ordinal([], {
+      t: "range",
+      a: [ [] ]
+    });
+  };
+  function d3_scale_ordinal(domain, ranger) {
+    var index, range, rangeBand;
+    function scale(x) {
+      return range[((index.get(x) || (ranger.t === "range" ? index.set(x, domain.push(x)) : NaN)) - 1) % range.length];
+    }
+    function steps(start, step) {
+      return d3.range(domain.length).map(function(i) {
+        return start + step * i;
+      });
+    }
+    scale.domain = function(x) {
+      if (!arguments.length) return domain;
+      domain = [];
+      index = new d3_Map();
+      var i = -1, n = x.length, xi;
+      while (++i < n) if (!index.has(xi = x[i])) index.set(xi, domain.push(xi));
+      return scale[ranger.t].apply(scale, ranger.a);
+    };
+    scale.range = function(x) {
+      if (!arguments.length) return range;
+      range = x;
+      rangeBand = 0;
+      ranger = {
+        t: "range",
+        a: arguments
+      };
+      return scale;
+    };
+    scale.rangePoints = function(x, padding) {
+      if (arguments.length < 2) padding = 0;
+      var start = x[0], stop = x[1], step = domain.length < 2 ? (start = (start + stop) / 2, 
+      0) : (stop - start) / (domain.length - 1 + padding);
+      range = steps(start + step * padding / 2, step);
+      rangeBand = 0;
+      ranger = {
+        t: "rangePoints",
+        a: arguments
+      };
+      return scale;
+    };
+    scale.rangeRoundPoints = function(x, padding) {
+      if (arguments.length < 2) padding = 0;
+      var start = x[0], stop = x[1], step = domain.length < 2 ? (start = stop = Math.round((start + stop) / 2), 
+      0) : (stop - start) / (domain.length - 1 + padding) | 0;
+      range = steps(start + Math.round(step * padding / 2 + (stop - start - (domain.length - 1 + padding) * step) / 2), step);
+      rangeBand = 0;
+      ranger = {
+        t: "rangeRoundPoints",
+        a: arguments
+      };
+      return scale;
+    };
+    scale.rangeBands = function(x, padding, outerPadding) {
+      if (arguments.length < 2) padding = 0;
+      if (arguments.length < 3) outerPadding = padding;
+      var reverse = x[1] < x[0], start = x[reverse - 0], stop = x[1 - reverse], step = (stop - start) / (domain.length - padding + 2 * outerPadding);
+      range = steps(start + step * outerPadding, step);
+      if (reverse) range.reverse();
+      rangeBand = step * (1 - padding);
+      ranger = {
+        t: "rangeBands",
+        a: arguments
+      };
+      return scale;
+    };
+    scale.rangeRoundBands = function(x, padding, outerPadding) {
+      if (arguments.length < 2) padding = 0;
+      if (arguments.length < 3) outerPadding = padding;
+      var reverse = x[1] < x[0], start = x[reverse - 0], stop = x[1 - reverse], step = Math.floor((stop - start) / (domain.length - padding + 2 * outerPadding));
+      range = steps(start + Math.round((stop - start - (domain.length - padding) * step) / 2), step);
+      if (reverse) range.reverse();
+      rangeBand = Math.round(step * (1 - padding));
+      ranger = {
+        t: "rangeRoundBands",
+        a: arguments
+      };
+      return scale;
+    };
+    scale.rangeBand = function() {
+      return rangeBand;
+    };
+    scale.rangeExtent = function() {
+      return d3_scaleExtent(ranger.a[0]);
+    };
+    scale.copy = function() {
+      return d3_scale_ordinal(domain, ranger);
+    };
+    return scale.domain(domain);
+  }
+  d3.scale.category10 = function() {
+    return d3.scale.ordinal().range(d3_category10);
+  };
+  d3.scale.category20 = function() {
+    return d3.scale.ordinal().range(d3_category20);
+  };
+  d3.scale.category20b = function() {
+    return d3.scale.ordinal().range(d3_category20b);
+  };
+  d3.scale.category20c = function() {
+    return d3.scale.ordinal().range(d3_category20c);
+  };
+  var d3_category10 = [ 2062260, 16744206, 2924588, 14034728, 9725885, 9197131, 14907330, 8355711, 12369186, 1556175 ].map(d3_rgbString);
+  var d3_category20 = [ 2062260, 11454440, 16744206, 16759672, 2924588, 10018698, 14034728, 16750742, 9725885, 12955861, 9197131, 12885140, 14907330, 16234194, 8355711, 13092807, 12369186, 14408589, 1556175, 10410725 ].map(d3_rgbString);
+  var d3_category20b = [ 3750777, 5395619, 7040719, 10264286, 6519097, 9216594, 11915115, 13556636, 9202993, 12426809, 15186514, 15190932, 8666169, 11356490, 14049643, 15177372, 8077683, 10834324, 13528509, 14589654 ].map(d3_rgbString);
+  var d3_category20c = [ 3244733, 7057110, 10406625, 13032431, 15095053, 16616764, 16625259, 16634018, 3253076, 7652470, 10607003, 13101504, 7695281, 10394312, 12369372, 14342891, 6513507, 9868950, 12434877, 14277081 ].map(d3_rgbString);
+  d3.scale.quantile = function() {
+    return d3_scale_quantile([], []);
+  };
+  function d3_scale_quantile(domain, range) {
+    var thresholds;
+    function rescale() {
+      var k = 0, q = range.length;
+      thresholds = [];
+      while (++k < q) thresholds[k - 1] = d3.quantile(domain, k / q);
+      return scale;
+    }
+    function scale(x) {
+      if (!isNaN(x = +x)) return range[d3.bisect(thresholds, x)];
+    }
+    scale.domain = function(x) {
+      if (!arguments.length) return domain;
+      domain = x.map(d3_number).filter(d3_numeric).sort(d3_ascending);
+      return rescale();
+    };
+    scale.range = function(x) {
+      if (!arguments.length) return range;
+      range = x;
+      return rescale();
+    };
+    scale.quantiles = function() {
+      return thresholds;
+    };
+    scale.invertExtent = function(y) {
+      y = range.indexOf(y);
+      return y < 0 ? [ NaN, NaN ] : [ y > 0 ? thresholds[y - 1] : domain[0], y < thresholds.length ? thresholds[y] : domain[domain.length - 1] ];
+    };
+    scale.copy = function() {
+      return d3_scale_quantile(domain, range);
+    };
+    return rescale();
+  }
+  d3.scale.quantize = function() {
+    return d3_scale_quantize(0, 1, [ 0, 1 ]);
+  };
+  function d3_scale_quantize(x0, x1, range) {
+    var kx, i;
+    function scale(x) {
+      return range[Math.max(0, Math.min(i, Math.floor(kx * (x - x0))))];
+    }
+    function rescale() {
+      kx = range.length / (x1 - x0);
+      i = range.length - 1;
+      return scale;
+    }
+    scale.domain = function(x) {
+      if (!arguments.length) return [ x0, x1 ];
+      x0 = +x[0];
+      x1 = +x[x.length - 1];
+      return rescale();
+    };
+    scale.range = function(x) {
+      if (!arguments.length) return range;
+      range = x;
+      return rescale();
+    };
+    scale.invertExtent = function(y) {
+      y = range.indexOf(y);
+      y = y < 0 ? NaN : y / kx + x0;
+      return [ y, y + 1 / kx ];
+    };
+    scale.copy = function() {
+      return d3_scale_quantize(x0, x1, range);
+    };
+    return rescale();
+  }
+  d3.scale.threshold = function() {
+    return d3_scale_threshold([ .5 ], [ 0, 1 ]);
+  };
+  function d3_scale_threshold(domain, range) {
+    function scale(x) {
+      if (x <= x) return range[d3.bisect(domain, x)];
+    }
+    scale.domain = function(_) {
+      if (!arguments.length) return domain;
+      domain = _;
+      return scale;
+    };
+    scale.range = function(_) {
+      if (!arguments.length) return range;
+      range = _;
+      return scale;
+    };
+    scale.invertExtent = function(y) {
+      y = range.indexOf(y);
+      return [ domain[y - 1], domain[y] ];
+    };
+    scale.copy = function() {
+      return d3_scale_threshold(domain, range);
+    };
+    return scale;
+  }
+  d3.scale.identity = function() {
+    return d3_scale_identity([ 0, 1 ]);
+  };
+  function d3_scale_identity(domain) {
+    function identity(x) {
+      return +x;
+    }
+    identity.invert = identity;
+    identity.domain = identity.range = function(x) {
+      if (!arguments.length) return domain;
+      domain = x.map(identity);
+      return identity;
+    };
+    identity.ticks = function(m) {
+      return d3_scale_linearTicks(domain, m);
+    };
+    identity.tickFormat = function(m, format) {
+      return d3_scale_linearTickFormat(domain, m, format);
+    };
+    identity.copy = function() {
+      return d3_scale_identity(domain);
+    };
+    return identity;
+  }
+  d3.svg = {};
+  function d3_zero() {
+    return 0;
+  }
+  d3.svg.arc = function() {
+    var innerRadius = d3_svg_arcInnerRadius, outerRadius = d3_svg_arcOuterRadius, cornerRadius = d3_zero, padRadius = d3_svg_arcAuto, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle, padAngle = d3_svg_arcPadAngle;
+    function arc() {
+      var r0 = Math.max(0, +innerRadius.apply(this, arguments)), r1 = Math.max(0, +outerRadius.apply(this, arguments)), a0 = startAngle.apply(this, arguments) - halfπ, a1 = endAngle.apply(this, arguments) - halfπ, da = Math.abs(a1 - a0), cw = a0 > a1 ? 0 : 1;
+      if (r1 < r0) rc = r1, r1 = r0, r0 = rc;
+      if (da >= τε) return circleSegment(r1, cw) + (r0 ? circleSegment(r0, 1 - cw) : "") + "Z";
+      var rc, cr, rp, ap, p0 = 0, p1 = 0, x0, y0, x1, y1, x2, y2, x3, y3, path = [];
+      if (ap = (+padAngle.apply(this, arguments) || 0) / 2) {
+        rp = padRadius === d3_svg_arcAuto ? Math.sqrt(r0 * r0 + r1 * r1) : +padRadius.apply(this, arguments);
+        if (!cw) p1 *= -1;
+        if (r1) p1 = d3_asin(rp / r1 * Math.sin(ap));
+        if (r0) p0 = d3_asin(rp / r0 * Math.sin(ap));
+      }
+      if (r1) {
+        x0 = r1 * Math.cos(a0 + p1);
+        y0 = r1 * Math.sin(a0 + p1);
+        x1 = r1 * Math.cos(a1 - p1);
+        y1 = r1 * Math.sin(a1 - p1);
+        var l1 = Math.abs(a1 - a0 - 2 * p1) <= π ? 0 : 1;
+        if (p1 && d3_svg_arcSweep(x0, y0, x1, y1) === cw ^ l1) {
+          var h1 = (a0 + a1) / 2;
+          x0 = r1 * Math.cos(h1);
+          y0 = r1 * Math.sin(h1);
+          x1 = y1 = null;
+        }
+      } else {
+        x0 = y0 = 0;
+      }
+      if (r0) {
+        x2 = r0 * Math.cos(a1 - p0);
+        y2 = r0 * Math.sin(a1 - p0);
+        x3 = r0 * Math.cos(a0 + p0);
+        y3 = r0 * Math.sin(a0 + p0);
+        var l0 = Math.abs(a0 - a1 + 2 * p0) <= π ? 0 : 1;
+        if (p0 && d3_svg_arcSweep(x2, y2, x3, y3) === 1 - cw ^ l0) {
+          var h0 = (a0 + a1) / 2;
+          x2 = r0 * Math.cos(h0);
+          y2 = r0 * Math.sin(h0);
+          x3 = y3 = null;
+        }
+      } else {
+        x2 = y2 = 0;
+      }
+      if ((rc = Math.min(Math.abs(r1 - r0) / 2, +cornerRadius.apply(this, arguments))) > .001) {
+        cr = r0 < r1 ^ cw ? 0 : 1;
+        var oc = x3 == null ? [ x2, y2 ] : x1 == null ? [ x0, y0 ] : d3_geom_polygonIntersect([ x0, y0 ], [ x3, y3 ], [ x1, y1 ], [ x2, y2 ]), ax = x0 - oc[0], ay = y0 - oc[1], bx = x1 - oc[0], by = y1 - oc[1], kc = 1 / Math.sin(Math.acos((ax * bx + ay * by) / (Math.sqrt(ax * ax + ay * ay) * Math.sqrt(bx * bx + by * by))) / 2), lc = Math.sqrt(oc[0] * oc[0] + oc[1] * oc[1]);
+        if (x1 != null) {
+          var rc1 = Math.min(rc, (r1 - lc) / (kc + 1)), t30 = d3_svg_arcCornerTangents(x3 == null ? [ x2, y2 ] : [ x3, y3 ], [ x0, y0 ], r1, rc1, cw), t12 = d3_svg_arcCornerTangents([ x1, y1 ], [ x2, y2 ], r1, rc1, cw);
+          if (rc === rc1) {
+            path.push("M", t30[0], "A", rc1, ",", rc1, " 0 0,", cr, " ", t30[1], "A", r1, ",", r1, " 0 ", 1 - cw ^ d3_svg_arcSweep(t30[1][0], t30[1][1], t12[1][0], t12[1][1]), ",", cw, " ", t12[1], "A", rc1, ",", rc1, " 0 0,", cr, " ", t12[0]);
+          } else {
+            path.push("M", t30[0], "A", rc1, ",", rc1, " 0 1,", cr, " ", t12[0]);
+          }
+        } else {
+          path.push("M", x0, ",", y0);
+        }
+        if (x3 != null) {
+          var rc0 = Math.min(rc, (r0 - lc) / (kc - 1)), t03 = d3_svg_arcCornerTangents([ x0, y0 ], [ x3, y3 ], r0, -rc0, cw), t21 = d3_svg_arcCornerTangents([ x2, y2 ], x1 == null ? [ x0, y0 ] : [ x1, y1 ], r0, -rc0, cw);
+          if (rc === rc0) {
+            path.push("L", t21[0], "A", rc0, ",", rc0, " 0 0,", cr, " ", t21[1], "A", r0, ",", r0, " 0 ", cw ^ d3_svg_arcSweep(t21[1][0], t21[1][1], t03[1][0], t03[1][1]), ",", 1 - cw, " ", t03[1], "A", rc0, ",", rc0, " 0 0,", cr, " ", t03[0]);
+          } else {
+            path.push("L", t21[0], "A", rc0, ",", rc0, " 0 0,", cr, " ", t03[0]);
+          }
+        } else {
+          path.push("L", x2, ",", y2);
+        }
+      } else {
+        path.push("M", x0, ",", y0);
+        if (x1 != null) path.push("A", r1, ",", r1, " 0 ", l1, ",", cw, " ", x1, ",", y1);
+        path.push("L", x2, ",", y2);
+        if (x3 != null) path.push("A", r0, ",", r0, " 0 ", l0, ",", 1 - cw, " ", x3, ",", y3);
+      }
+      path.push("Z");
+      return path.join("");
+    }
+    function circleSegment(r1, cw) {
+      return "M0," + r1 + "A" + r1 + "," + r1 + " 0 1," + cw + " 0," + -r1 + "A" + r1 + "," + r1 + " 0 1," + cw + " 0," + r1;
+    }
+    arc.innerRadius = function(v) {
+      if (!arguments.length) return innerRadius;
+      innerRadius = d3_functor(v);
+      return arc;
+    };
+    arc.outerRadius = function(v) {
+      if (!arguments.length) return outerRadius;
+      outerRadius = d3_functor(v);
+      return arc;
+    };
+    arc.cornerRadius = function(v) {
+      if (!arguments.length) return cornerRadius;
+      cornerRadius = d3_functor(v);
+      return arc;
+    };
+    arc.padRadius = function(v) {
+      if (!arguments.length) return padRadius;
+      padRadius = v == d3_svg_arcAuto ? d3_svg_arcAuto : d3_functor(v);
+      return arc;
+    };
+    arc.startAngle = function(v) {
+      if (!arguments.length) return startAngle;
+      startAngle = d3_functor(v);
+      return arc;
+    };
+    arc.endAngle = function(v) {
+      if (!arguments.length) return endAngle;
+      endAngle = d3_functor(v);
+      return arc;
+    };
+    arc.padAngle = function(v) {
+      if (!arguments.length) return padAngle;
+      padAngle = d3_functor(v);
+      return arc;
+    };
+    arc.centroid = function() {
+      var r = (+innerRadius.apply(this, arguments) + +outerRadius.apply(this, arguments)) / 2, a = (+startAngle.apply(this, arguments) + +endAngle.apply(this, arguments)) / 2 - halfπ;
+      return [ Math.cos(a) * r, Math.sin(a) * r ];
+    };
+    return arc;
+  };
+  var d3_svg_arcAuto = "auto";
+  function d3_svg_arcInnerRadius(d) {
+    return d.innerRadius;
+  }
+  function d3_svg_arcOuterRadius(d) {
+    return d.outerRadius;
+  }
+  function d3_svg_arcStartAngle(d) {
+    return d.startAngle;
+  }
+  function d3_svg_arcEndAngle(d) {
+    return d.endAngle;
+  }
+  function d3_svg_arcPadAngle(d) {
+    return d && d.padAngle;
+  }
+  function d3_svg_arcSweep(x0, y0, x1, y1) {
+    return (x0 - x1) * y0 - (y0 - y1) * x0 > 0 ? 0 : 1;
+  }
+  function d3_svg_arcCornerTangents(p0, p1, r1, rc, cw) {
+    var x01 = p0[0] - p1[0], y01 = p0[1] - p1[1], lo = (cw ? rc : -rc) / Math.sqrt(x01 * x01 + y01 * y01), ox = lo * y01, oy = -lo * x01, x1 = p0[0] + ox, y1 = p0[1] + oy, x2 = p1[0] + ox, y2 = p1[1] + oy, x3 = (x1 + x2) / 2, y3 = (y1 + y2) / 2, dx = x2 - x1, dy = y2 - y1, d2 = dx * dx + dy * dy, r = r1 - rc, D = x1 * y2 - x2 * y1, d = (dy < 0 ? -1 : 1) * Math.sqrt(r * r * d2 - D * D), cx0 = (D * dy - dx * d) / d2, cy0 = (-D * dx - dy * d) / d2, cx1 = (D * dy + dx * d) / d2, cy1 = (-D * dx + dy * d) / d2, dx0 = cx0 - x3, dy0 = cy0 - y3, dx1 = cx1 - x3, dy1 = cy1 - y3;
+    if (dx0 * dx0 + dy0 * dy0 > dx1 * dx1 + dy1 * dy1) cx0 = cx1, cy0 = cy1;
+    return [ [ cx0 - ox, cy0 - oy ], [ cx0 * r1 / r, cy0 * r1 / r ] ];
+  }
+  function d3_svg_line(projection) {
+    var x = d3_geom_pointX, y = d3_geom_pointY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, tension = .7;
+    function line(data) {
+      var segments = [], points = [], i = -1, n = data.length, d, fx = d3_functor(x), fy = d3_functor(y);
+      function segment() {
+        segments.push("M", interpolate(projection(points), tension));
+      }
+      while (++i < n) {
+        if (defined.call(this, d = data[i], i)) {
+          points.push([ +fx.call(this, d, i), +fy.call(this, d, i) ]);
+        } else if (points.length) {
+          segment();
+          points = [];
+        }
+      }
+      if (points.length) segment();
+      return segments.length ? segments.join("") : null;
+    }
+    line.x = function(_) {
+      if (!arguments.length) return x;
+      x = _;
+      return line;
+    };
+    line.y = function(_) {
+      if (!arguments.length) return y;
+      y = _;
+      return line;
+    };
+    line.defined = function(_) {
+      if (!arguments.length) return defined;
+      defined = _;
+      return line;
+    };
+    line.interpolate = function(_) {
+      if (!arguments.length) return interpolateKey;
+      if (typeof _ === "function") interpolateKey = interpolate = _; else interpolateKey = (interpolate = d3_svg_lineInterpolators.get(_) || d3_svg_lineLinear).key;
+      return line;
+    };
+    line.tension = function(_) {
+      if (!arguments.length) return tension;
+      tension = _;
+      return line;
+    };
+    return line;
+  }
+  d3.svg.line = function() {
+    return d3_svg_line(d3_identity);
+  };
+  var d3_svg_lineInterpolators = d3.map({
+    linear: d3_svg_lineLinear,
+    "linear-closed": d3_svg_lineLinearClosed,
+    step: d3_svg_lineStep,
+    "step-before": d3_svg_lineStepBefore,
+    "step-after": d3_svg_lineStepAfter,
+    basis: d3_svg_lineBasis,
+    "basis-open": d3_svg_lineBasisOpen,
+    "basis-closed": d3_svg_lineBasisClosed,
+    bundle: d3_svg_lineBundle,
+    cardinal: d3_svg_lineCardinal,
+    "cardinal-open": d3_svg_lineCardinalOpen,
+    "cardinal-closed": d3_svg_lineCardinalClosed,
+    monotone: d3_svg_lineMonotone
+  });
+  d3_svg_lineInterpolators.forEach(function(key, value) {
+    value.key = key;
+    value.closed = /-closed$/.test(key);
+  });
+  function d3_svg_lineLinear(points) {
+    return points.join("L");
+  }
+  function d3_svg_lineLinearClosed(points) {
+    return d3_svg_lineLinear(points) + "Z";
+  }
+  function d3_svg_lineStep(points) {
+    var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];
+    while (++i < n) path.push("H", (p[0] + (p = points[i])[0]) / 2, "V", p[1]);
+    if (n > 1) path.push("H", p[0]);
+    return path.join("");
+  }
+  function d3_svg_lineStepBefore(points) {
+    var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];
+    while (++i < n) path.push("V", (p = points[i])[1], "H", p[0]);
+    return path.join("");
+  }
+  function d3_svg_lineStepAfter(points) {
+    var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];
+    while (++i < n) path.push("H", (p = points[i])[0], "V", p[1]);
+    return path.join("");
+  }
+  function d3_svg_lineCardinalOpen(points, tension) {
+    return points.length < 4 ? d3_svg_lineLinear(points) : points[1] + d3_svg_lineHermite(points.slice(1, -1), d3_svg_lineCardinalTangents(points, tension));
+  }
+  function d3_svg_lineCardinalClosed(points, tension) {
+    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite((points.push(points[0]), 
+    points), d3_svg_lineCardinalTangents([ points[points.length - 2] ].concat(points, [ points[1] ]), tension));
+  }
+  function d3_svg_lineCardinal(points, tension) {
+    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineCardinalTangents(points, tension));
+  }
+  function d3_svg_lineHermite(points, tangents) {
+    if (tangents.length < 1 || points.length != tangents.length && points.length != tangents.length + 2) {
+      return d3_svg_lineLinear(points);
+    }
+    var quad = points.length != tangents.length, path = "", p0 = points[0], p = points[1], t0 = tangents[0], t = t0, pi = 1;
+    if (quad) {
+      path += "Q" + (p[0] - t0[0] * 2 / 3) + "," + (p[1] - t0[1] * 2 / 3) + "," + p[0] + "," + p[1];
+      p0 = points[1];
+      pi = 2;
+    }
+    if (tangents.length > 1) {
+      t = tangents[1];
+      p = points[pi];
+      pi++;
+      path += "C" + (p0[0] + t0[0]) + "," + (p0[1] + t0[1]) + "," + (p[0] - t[0]) + "," + (p[1] - t[1]) + "," + p[0] + "," + p[1];
+      for (var i = 2; i < tangents.length; i++, pi++) {
+        p = points[pi];
+        t = tangents[i];
+        path += "S" + (p[0] - t[0]) + "," + (p[1] - t[1]) + "," + p[0] + "," + p[1];
+      }
+    }
+    if (quad) {
+      var lp = points[pi];
+      path += "Q" + (p[0] + t[0] * 2 / 3) + "," + (p[1] + t[1] * 2 / 3) + "," + lp[0] + "," + lp[1];
+    }
+    return path;
+  }
+  function d3_svg_lineCardinalTangents(points, tension) {
+    var tangents = [], a = (1 - tension) / 2, p0, p1 = points[0], p2 = points[1], i = 1, n = points.length;
+    while (++i < n) {
+      p0 = p1;
+      p1 = p2;
+      p2 = points[i];
+      tangents.push([ a * (p2[0] - p0[0]), a * (p2[1] - p0[1]) ]);
+    }
+    return tangents;
+  }
+  function d3_svg_lineBasis(points) {
+    if (points.length < 3) return d3_svg_lineLinear(points);
+    var i = 1, n = points.length, pi = points[0], x0 = pi[0], y0 = pi[1], px = [ x0, x0, x0, (pi = points[1])[0] ], py = [ y0, y0, y0, pi[1] ], path = [ x0, ",", y0, "L", d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, py) ];
+    points.push(points[n - 1]);
+    while (++i <= n) {
+      pi = points[i];
+      px.shift();
+      px.push(pi[0]);
+      py.shift();
+      py.push(pi[1]);
+      d3_svg_lineBasisBezier(path, px, py);
+    }
+    points.pop();
+    path.push("L", pi);
+    return path.join("");
+  }
+  function d3_svg_lineBasisOpen(points) {
+    if (points.length < 4) return d3_svg_lineLinear(points);
+    var path = [], i = -1, n = points.length, pi, px = [ 0 ], py = [ 0 ];
+    while (++i < 3) {
+      pi = points[i];
+      px.push(pi[0]);
+      py.push(pi[1]);
+    }
+    path.push(d3_svg_lineDot4(d3_svg_lineBasisBezier3, px) + "," + d3_svg_lineDot4(d3_svg_lineBasisBezier3, py));
+    --i;
+    while (++i < n) {
+      pi = points[i];
+      px.shift();
+      px.push(pi[0]);
+      py.shift();
+      py.push(pi[1]);
+      d3_svg_lineBasisBezier(path, px, py);
+    }
+    return path.join("");
+  }
+  function d3_svg_lineBasisClosed(points) {
+    var path, i = -1, n = points.length, m = n + 4, pi, px = [], py = [];
+    while (++i < 4) {
+      pi = points[i % n];
+      px.push(pi[0]);
+      py.push(pi[1]);
+    }
+    path = [ d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, py) ];
+    --i;
+    while (++i < m) {
+      pi = points[i % n];
+      px.shift();
+      px.push(pi[0]);
+      py.shift();
+      py.push(pi[1]);
+      d3_svg_lineBasisBezier(path, px, py);
+    }
+    return path.join("");
+  }
+  function d3_svg_lineBundle(points, tension) {
+    var n = points.length - 1;
+    if (n) {
+      var x0 = points[0][0], y0 = points[0][1], dx = points[n][0] - x0, dy = points[n][1] - y0, i = -1, p, t;
+      while (++i <= n) {
+        p = points[i];
+        t = i / n;
+        p[0] = tension * p[0] + (1 - tension) * (x0 + t * dx);
+        p[1] = tension * p[1] + (1 - tension) * (y0 + t * dy);
+      }
+    }
+    return d3_svg_lineBasis(points);
+  }
+  function d3_svg_lineDot4(a, b) {
+    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];
+  }
+  var d3_svg_lineBasisBezier1 = [ 0, 2 / 3, 1 / 3, 0 ], d3_svg_lineBasisBezier2 = [ 0, 1 / 3, 2 / 3, 0 ], d3_svg_lineBasisBezier3 = [ 0, 1 / 6, 2 / 3, 1 / 6 ];
+  function d3_svg_lineBasisBezier(path, x, y) {
+    path.push("C", d3_svg_lineDot4(d3_svg_lineBasisBezier1, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier1, y), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, y), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, y));
+  }
+  function d3_svg_lineSlope(p0, p1) {
+    return (p1[1] - p0[1]) / (p1[0] - p0[0]);
+  }
+  function d3_svg_lineFiniteDifferences(points) {
+    var i = 0, j = points.length - 1, m = [], p0 = points[0], p1 = points[1], d = m[0] = d3_svg_lineSlope(p0, p1);
+    while (++i < j) {
+      m[i] = (d + (d = d3_svg_lineSlope(p0 = p1, p1 = points[i + 1]))) / 2;
+    }
+    m[i] = d;
+    return m;
+  }
+  function d3_svg_lineMonotoneTangents(points) {
+    var tangents = [], d, a, b, s, m = d3_svg_lineFiniteDifferences(points), i = -1, j = points.length - 1;
+    while (++i < j) {
+      d = d3_svg_lineSlope(points[i], points[i + 1]);
+      if (abs(d) < ε) {
+        m[i] = m[i + 1] = 0;
+      } else {
+        a = m[i] / d;
+        b = m[i + 1] / d;
+        s = a * a + b * b;
+        if (s > 9) {
+          s = d * 3 / Math.sqrt(s);
+          m[i] = s * a;
+          m[i + 1] = s * b;
+        }
+      }
+    }
+    i = -1;
+    while (++i <= j) {
+      s = (points[Math.min(j, i + 1)][0] - points[Math.max(0, i - 1)][0]) / (6 * (1 + m[i] * m[i]));
+      tangents.push([ s || 0, m[i] * s || 0 ]);
+    }
+    return tangents;
+  }
+  function d3_svg_lineMonotone(points) {
+    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineMonotoneTangents(points));
+  }
+  d3.svg.line.radial = function() {
+    var line = d3_svg_line(d3_svg_lineRadial);
+    line.radius = line.x, delete line.x;
+    line.angle = line.y, delete line.y;
+    return line;
+  };
+  function d3_svg_lineRadial(points) {
+    var point, i = -1, n = points.length, r, a;
+    while (++i < n) {
+      point = points[i];
+      r = point[0];
+      a = point[1] - halfπ;
+      point[0] = r * Math.cos(a);
+      point[1] = r * Math.sin(a);
+    }
+    return points;
+  }
+  function d3_svg_area(projection) {
+    var x0 = d3_geom_pointX, x1 = d3_geom_pointX, y0 = 0, y1 = d3_geom_pointY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, interpolateReverse = interpolate, L = "L", tension = .7;
+    function area(data) {
+      var segments = [], points0 = [], points1 = [], i = -1, n = data.length, d, fx0 = d3_functor(x0), fy0 = d3_functor(y0), fx1 = x0 === x1 ? function() {
+        return x;
+      } : d3_functor(x1), fy1 = y0 === y1 ? function() {
+        return y;
+      } : d3_functor(y1), x, y;
+      function segment() {
+        segments.push("M", interpolate(projection(points1), tension), L, interpolateReverse(projection(points0.reverse()), tension), "Z");
+      }
+      while (++i < n) {
+        if (defined.call(this, d = data[i], i)) {
+          points0.push([ x = +fx0.call(this, d, i), y = +fy0.call(this, d, i) ]);
+          points1.push([ +fx1.call(this, d, i), +fy1.call(this, d, i) ]);
+        } else if (points0.length) {
+          segment();
+          points0 = [];
+          points1 = [];
+        }
+      }
+      if (points0.length) segment();
+      return segments.length ? segments.join("") : null;
+    }
+    area.x = function(_) {
+      if (!arguments.length) return x1;
+      x0 = x1 = _;
+      return area;
+    };
+    area.x0 = function(_) {
+      if (!arguments.length) return x0;
+      x0 = _;
+      return area;
+    };
+    area.x1 = function(_) {
+      if (!arguments.length) return x1;
+      x1 = _;
+      return area;
+    };
+    area.y = function(_) {
+      if (!arguments.length) return y1;
+      y0 = y1 = _;
+      return area;
+    };
+    area.y0 = function(_) {
+      if (!arguments.length) return y0;
+      y0 = _;
+      return area;
+    };
+    area.y1 = function(_) {
+      if (!arguments.length) return y1;
+      y1 = _;
+      return area;
+    };
+    area.defined = function(_) {
+      if (!arguments.length) return defined;
+      defined = _;
+      return area;
+    };
+    area.interpolate = function(_) {
+      if (!arguments.length) return interpolateKey;
+      if (typeof _ === "function") interpolateKey = interpolate = _; else interpolateKey = (interpolate = d3_svg_lineInterpolators.get(_) || d3_svg_lineLinear).key;
+      interpolateReverse = interpolate.reverse || interpolate;
+      L = interpolate.closed ? "M" : "L";
+      return area;
+    };
+    area.tension = function(_) {
+      if (!arguments.length) return tension;
+      tension = _;
+      return area;
+    };
+    return area;
+  }
+  d3_svg_lineStepBefore.reverse = d3_svg_lineStepAfter;
+  d3_svg_lineStepAfter.reverse = d3_svg_lineStepBefore;
+  d3.svg.area = function() {
+    return d3_svg_area(d3_identity);
+  };
+  d3.svg.area.radial = function() {
+    var area = d3_svg_area(d3_svg_lineRadial);
+    area.radius = area.x, delete area.x;
+    area.innerRadius = area.x0, delete area.x0;
+    area.outerRadius = area.x1, delete area.x1;
+    area.angle = area.y, delete area.y;
+    area.startAngle = area.y0, delete area.y0;
+    area.endAngle = area.y1, delete area.y1;
+    return area;
+  };
+  d3.svg.chord = function() {
+    var source = d3_source, target = d3_target, radius = d3_svg_chordRadius, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle;
+    function chord(d, i) {
+      var s = subgroup(this, source, d, i), t = subgroup(this, target, d, i);
+      return "M" + s.p0 + arc(s.r, s.p1, s.a1 - s.a0) + (equals(s, t) ? curve(s.r, s.p1, s.r, s.p0) : curve(s.r, s.p1, t.r, t.p0) + arc(t.r, t.p1, t.a1 - t.a0) + curve(t.r, t.p1, s.r, s.p0)) + "Z";
+    }
+    function subgroup(self, f, d, i) {
+      var subgroup = f.call(self, d, i), r = radius.call(self, subgroup, i), a0 = startAngle.call(self, subgroup, i) - halfπ, a1 = endAngle.call(self, subgroup, i) - halfπ;
+      return {
+        r: r,
+        a0: a0,
+        a1: a1,
+        p0: [ r * Math.cos(a0), r * Math.sin(a0) ],
+        p1: [ r * Math.cos(a1), r * Math.sin(a1) ]
+      };
+    }
+    function equals(a, b) {
+      return a.a0 == b.a0 && a.a1 == b.a1;
+    }
+    function arc(r, p, a) {
+      return "A" + r + "," + r + " 0 " + +(a > π) + ",1 " + p;
+    }
+    function curve(r0, p0, r1, p1) {
+      return "Q 0,0 " + p1;
+    }
+    chord.radius = function(v) {
+      if (!arguments.length) return radius;
+      radius = d3_functor(v);
+      return chord;
+    };
+    chord.source = function(v) {
+      if (!arguments.length) return source;
+      source = d3_functor(v);
+      return chord;
+    };
+    chord.target = function(v) {
+      if (!arguments.length) return target;
+      target = d3_functor(v);
+      return chord;
+    };
+    chord.startAngle = function(v) {
+      if (!arguments.length) return startAngle;
+      startAngle = d3_functor(v);
+      return chord;
+    };
+    chord.endAngle = function(v) {
+      if (!arguments.length) return endAngle;
+      endAngle = d3_functor(v);
+      return chord;
+    };
+    return chord;
+  };
+  function d3_svg_chordRadius(d) {
+    return d.radius;
+  }
+  d3.svg.diagonal = function() {
+    var source = d3_source, target = d3_target, projection = d3_svg_diagonalProjection;
+    function diagonal(d, i) {
+      var p0 = source.call(this, d, i), p3 = target.call(this, d, i), m = (p0.y + p3.y) / 2, p = [ p0, {
+        x: p0.x,
+        y: m
+      }, {
+        x: p3.x,
+        y: m
+      }, p3 ];
+      p = p.map(projection);
+      return "M" + p[0] + "C" + p[1] + " " + p[2] + " " + p[3];
+    }
+    diagonal.source = function(x) {
+      if (!arguments.length) return source;
+      source = d3_functor(x);
+      return diagonal;
+    };
+    diagonal.target = function(x) {
+      if (!arguments.length) return target;
+      target = d3_functor(x);
+      return diagonal;
+    };
+    diagonal.projection = function(x) {
+      if (!arguments.length) return projection;
+      projection = x;
+      return diagonal;
+    };
+    return diagonal;
+  };
+  function d3_svg_diagonalProjection(d) {
+    return [ d.x, d.y ];
+  }
+  d3.svg.diagonal.radial = function() {
+    var diagonal = d3.svg.diagonal(), projection = d3_svg_diagonalProjection, projection_ = diagonal.projection;
+    diagonal.projection = function(x) {
+      return arguments.length ? projection_(d3_svg_diagonalRadialProjection(projection = x)) : projection;
+    };
+    return diagonal;
+  };
+  function d3_svg_diagonalRadialProjection(projection) {
+    return function() {
+      var d = projection.apply(this, arguments), r = d[0], a = d[1] - halfπ;
+      return [ r * Math.cos(a), r * Math.sin(a) ];
+    };
+  }
+  d3.svg.symbol = function() {
+    var type = d3_svg_symbolType, size = d3_svg_symbolSize;
+    function symbol(d, i) {
+      return (d3_svg_symbols.get(type.call(this, d, i)) || d3_svg_symbolCircle)(size.call(this, d, i));
+    }
+    symbol.type = function(x) {
+      if (!arguments.length) return type;
+      type = d3_functor(x);
+      return symbol;
+    };
+    symbol.size = function(x) {
+      if (!arguments.length) return size;
+      size = d3_functor(x);
+      return symbol;
+    };
+    return symbol;
+  };
+  function d3_svg_symbolSize() {
+    return 64;
+  }
+  function d3_svg_symbolType() {
+    return "circle";
+  }
+  function d3_svg_symbolCircle(size) {
+    var r = Math.sqrt(size / π);
+    return "M0," + r + "A" + r + "," + r + " 0 1,1 0," + -r + "A" + r + "," + r + " 0 1,1 0," + r + "Z";
+  }
+  var d3_svg_symbols = d3.map({
+    circle: d3_svg_symbolCircle,
+    cross: function(size) {
+      var r = Math.sqrt(size / 5) / 2;
+      return "M" + -3 * r + "," + -r + "H" + -r + "V" + -3 * r + "H" + r + "V" + -r + "H" + 3 * r + "V" + r + "H" + r + "V" + 3 * r + "H" + -r + "V" + r + "H" + -3 * r + "Z";
+    },
+    diamond: function(size) {
+      var ry = Math.sqrt(size / (2 * d3_svg_symbolTan30)), rx = ry * d3_svg_symbolTan30;
+      return "M0," + -ry + "L" + rx + ",0" + " 0," + ry + " " + -rx + ",0" + "Z";
+    },
+    square: function(size) {
+      var r = Math.sqrt(size) / 2;
+      return "M" + -r + "," + -r + "L" + r + "," + -r + " " + r + "," + r + " " + -r + "," + r + "Z";
+    },
+    "triangle-down": function(size) {
+      var rx = Math.sqrt(size / d3_svg_symbolSqrt3), ry = rx * d3_svg_symbolSqrt3 / 2;
+      return "M0," + ry + "L" + rx + "," + -ry + " " + -rx + "," + -ry + "Z";
+    },
+    "triangle-up": function(size) {
+      var rx = Math.sqrt(size / d3_svg_symbolSqrt3), ry = rx * d3_svg_symbolSqrt3 / 2;
+      return "M0," + -ry + "L" + rx + "," + ry + " " + -rx + "," + ry + "Z";
+    }
+  });
+  d3.svg.symbolTypes = d3_svg_symbols.keys();
+  var d3_svg_symbolSqrt3 = Math.sqrt(3), d3_svg_symbolTan30 = Math.tan(30 * d3_radians);
+  d3_selectionPrototype.transition = function(name) {
+    var id = d3_transitionInheritId || ++d3_transitionId, ns = d3_transitionNamespace(name), subgroups = [], subgroup, node, transition = d3_transitionInherit || {
+      time: Date.now(),
+      ease: d3_ease_cubicInOut,
+      delay: 0,
+      duration: 250
+    };
+    for (var j = -1, m = this.length; ++j < m; ) {
+      subgroups.push(subgroup = []);
+      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
+        if (node = group[i]) d3_transitionNode(node, i, ns, id, transition);
+        subgroup.push(node);
+      }
+    }
+    return d3_transition(subgroups, ns, id);
+  };
+  d3_selectionPrototype.interrupt = function(name) {
+    return this.each(name == null ? d3_selection_interrupt : d3_selection_interruptNS(d3_transitionNamespace(name)));
+  };
+  var d3_selection_interrupt = d3_selection_interruptNS(d3_transitionNamespace());
+  function d3_selection_interruptNS(ns) {
+    return function() {
+      var lock, active;
+      if ((lock = this[ns]) && (active = lock[lock.active])) {
+        if (--lock.count) delete lock[lock.active]; else delete this[ns];
+        lock.active += .5;
+        active.event && active.event.interrupt.call(this, this.__data__, active.index);
+      }
+    };
+  }
+  function d3_transition(groups, ns, id) {
+    d3_subclass(groups, d3_transitionPrototype);
+    groups.namespace = ns;
+    groups.id = id;
+    return groups;
+  }
+  var d3_transitionPrototype = [], d3_transitionId = 0, d3_transitionInheritId, d3_transitionInherit;
+  d3_transitionPrototype.call = d3_selectionPrototype.call;
+  d3_transitionPrototype.empty = d3_selectionPrototype.empty;
+  d3_transitionPrototype.node = d3_selectionPrototype.node;
+  d3_transitionPrototype.size = d3_selectionPrototype.size;
+  d3.transition = function(selection, name) {
+    return selection && selection.transition ? d3_transitionInheritId ? selection.transition(name) : selection : d3.selection().transition(selection);
+  };
+  d3.transition.prototype = d3_transitionPrototype;
+  d3_transitionPrototype.select = function(selector) {
+    var id = this.id, ns = this.namespace, subgroups = [], subgroup, subnode, node;
+    selector = d3_selection_selector(selector);
+    for (var j = -1, m = this.length; ++j < m; ) {
+      subgroups.push(subgroup = []);
+      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
+        if ((node = group[i]) && (subnode = selector.call(node, node.__data__, i, j))) {
+          if ("__data__" in node) subnode.__data__ = node.__data__;
+          d3_transitionNode(subnode, i, ns, id, node[ns][id]);
+          subgroup.push(subnode);
+        } else {
+          subgroup.push(null);
+        }
+      }
+    }
+    return d3_transition(subgroups, ns, id);
+  };
+  d3_transitionPrototype.selectAll = function(selector) {
+    var id = this.id, ns = this.namespace, subgroups = [], subgroup, subnodes, node, subnode, transition;
+    selector = d3_selection_selectorAll(selector);
+    for (var j = -1, m = this.length; ++j < m; ) {
+      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
+        if (node = group[i]) {
+          transition = node[ns][id];
+          subnodes = selector.call(node, node.__data__, i, j);
+          subgroups.push(subgroup = []);
+          for (var k = -1, o = subnodes.length; ++k < o; ) {
+            if (subnode = subnodes[k]) d3_transitionNode(subnode, k, ns, id, transition);
+            subgroup.push(subnode);
+          }
+        }
+      }
+    }
+    return d3_transition(subgroups, ns, id);
+  };
+  d3_transitionPrototype.filter = function(filter) {
+    var subgroups = [], subgroup, group, node;
+    if (typeof filter !== "function") filter = d3_selection_filter(filter);
+    for (var j = 0, m = this.length; j < m; j++) {
+      subgroups.push(subgroup = []);
+      for (var group = this[j], i = 0, n = group.length; i < n; i++) {
+        if ((node = group[i]) && filter.call(node, node.__data__, i, j)) {
+          subgroup.push(node);
+        }
+      }
+    }
+    return d3_transition(subgroups, this.namespace, this.id);
+  };
+  d3_transitionPrototype.tween = function(name, tween) {
+    var id = this.id, ns = this.namespace;
+    if (arguments.length < 2) return this.node()[ns][id].tween.get(name);
+    return d3_selection_each(this, tween == null ? function(node) {
+      node[ns][id].tween.remove(name);
+    } : function(node) {
+      node[ns][id].tween.set(name, tween);
+    });
+  };
+  function d3_transition_tween(groups, name, value, tween) {
+    var id = groups.id, ns = groups.namespace;
+    return d3_selection_each(groups, typeof value === "function" ? function(node, i, j) {
+      node[ns][id].tween.set(name, tween(value.call(node, node.__data__, i, j)));
+    } : (value = tween(value), function(node) {
+      node[ns][id].tween.set(name, value);
+    }));
+  }
+  d3_transitionPrototype.attr = function(nameNS, value) {
+    if (arguments.length < 2) {
+      for (value in nameNS) this.attr(value, nameNS[value]);
+      return this;
+    }
+    var interpolate = nameNS == "transform" ? d3_interpolateTransform : d3_interpolate, name = d3.ns.qualify(nameNS);
+    function attrNull() {
+      this.removeAttribute(name);
+    }
+    function attrNullNS() {
+      this.removeAttributeNS(name.space, name.local);
+    }
+    function attrTween(b) {
+      return b == null ? attrNull : (b += "", function() {
+        var a = this.getAttribute(name), i;
+        return a !== b && (i = interpolate(a, b), function(t) {
+          this.setAttribute(name, i(t));
+        });
+      });
+    }
+    function attrTweenNS(b) {
+      return b == null ? attrNullNS : (b += "", function() {
+        var a = this.getAttributeNS(name.space, name.local), i;
+        return a !== b && (i = interpolate(a, b), function(t) {
+          this.setAttributeNS(name.space, name.local, i(t));
+        });
+      });
+    }
+    return d3_transition_tween(this, "attr." + nameNS, value, name.local ? attrTweenNS : attrTween);
+  };
+  d3_transitionPrototype.attrTween = function(nameNS, tween) {
+    var name = d3.ns.qualify(nameNS);
+    function attrTween(d, i) {
+      var f = tween.call(this, d, i, this.getAttribute(name));
+      return f && function(t) {
+        this.setAttribute(name, f(t));
+      };
+    }
+    function attrTweenNS(d, i) {
+      var f = tween.call(this, d, i, this.getAttributeNS(name.space, name.local));
+      return f && function(t) {
+        this.setAttributeNS(name.space, name.local, f(t));
+      };
+    }
+    return this.tween("attr." + nameNS, name.local ? attrTweenNS : attrTween);
+  };
+  d3_transitionPrototype.style = function(name, value, priority) {
+    var n = arguments.length;
+    if (n < 3) {
+      if (typeof name !== "string") {
+        if (n < 2) value = "";
+        for (priority in name) this.style(priority, name[priority], value);
+        return this;
+      }
+      priority = "";
+    }
+    function styleNull() {
+      this.style.removeProperty(name);
+    }
+    function styleString(b) {
+      return b == null ? styleNull : (b += "", function() {
+        var a = d3_window(this).getComputedStyle(this, null).getPropertyValue(name), i;
+        return a !== b && (i = d3_interpolate(a, b), function(t) {
+          this.style.setProperty(name, i(t), priority);
+        });
+      });
+    }
+    return d3_transition_tween(this, "style." + name, value, styleString);
+  };
+  d3_transitionPrototype.styleTween = function(name, tween, priority) {
+    if (arguments.length < 3) priority = "";
+    function styleTween(d, i) {
+      var f = tween.call(this, d, i, d3_window(this).getComputedStyle(this, null).getPropertyValue(name));
+      return f && function(t) {
+        this.style.setProperty(name, f(t), priority);
+      };
+    }
+    return this.tween("style." + name, styleTween);
+  };
+  d3_transitionPrototype.text = function(value) {
+    return d3_transition_tween(this, "text", value, d3_transition_text);
+  };
+  function d3_transition_text(b) {
+    if (b == null) b = "";
+    return function() {
+      this.textContent = b;
+    };
+  }
+  d3_transitionPrototype.remove = function() {
+    var ns = this.namespace;
+    return this.each("end.transition", function() {
+      var p;
+      if (this[ns].count < 2 && (p = this.parentNode)) p.removeChild(this);
+    });
+  };
+  d3_transitionPrototype.ease = function(value) {
+    var id = this.id, ns = this.namespace;
+    if (arguments.length < 1) return this.node()[ns][id].ease;
+    if (typeof value !== "function") value = d3.ease.apply(d3, arguments);
+    return d3_selection_each(this, function(node) {
+      node[ns][id].ease = value;
+    });
+  };
+  d3_transitionPrototype.delay = function(value) {
+    var id = this.id, ns = this.namespace;
+    if (arguments.length < 1) return this.node()[ns][id].delay;
+    return d3_selection_each(this, typeof value === "function" ? function(node, i, j) {
+      node[ns][id].delay = +value.call(node, node.__data__, i, j);
+    } : (value = +value, function(node) {
+      node[ns][id].delay = value;
+    }));
+  };
+  d3_transitionPrototype.duration = function(value) {
+    var id = this.id, ns = this.namespace;
+    if (arguments.length < 1) return this.node()[ns][id].duration;
+    return d3_selection_each(this, typeof value === "function" ? function(node, i, j) {
+      node[ns][id].duration = Math.max(1, value.call(node, node.__data__, i, j));
+    } : (value = Math.max(1, value), function(node) {
+      node[ns][id].duration = value;
+    }));
+  };
+  d3_transitionPrototype.each = function(type, listener) {
+    var id = this.id, ns = this.namespace;
+    if (arguments.length < 2) {
+      var inherit = d3_transitionInherit, inheritId = d3_transitionInheritId;
+      try {
+        d3_transitionInheritId = id;
+        d3_selection_each(this, function(node, i, j) {
+          d3_transitionInherit = node[ns][id];
+          type.call(node, node.__data__, i, j);
+        });
+      } finally {
+        d3_transitionInherit = inherit;
+        d3_transitionInheritId = inheritId;
+      }
+    } else {
+      d3_selection_each(this, function(node) {
+        var transition = node[ns][id];
+        (transition.event || (transition.event = d3.dispatch("start", "end", "interrupt"))).on(type, listener);
+      });
+    }
+    return this;
+  };
+  d3_transitionPrototype.transition = function() {
+    var id0 = this.id, id1 = ++d3_transitionId, ns = this.namespace, subgroups = [], subgroup, group, node, transition;
+    for (var j = 0, m = this.length; j < m; j++) {
+      subgroups.push(subgroup = []);
+      for (var group = this[j], i = 0, n = group.length; i < n; i++) {
+        if (node = group[i]) {
+          transition = node[ns][id0];
+          d3_transitionNode(node, i, ns, id1, {
+            time: transition.time,
+            ease: transition.ease,
+            delay: transition.delay + transition.duration,
+            duration: transition.duration
+          });
+        }
+        subgroup.push(node);
+      }
+    }
+    return d3_transition(subgroups, ns, id1);
+  };
+  function d3_transitionNamespace(name) {
+    return name == null ? "__transition__" : "__transition_" + name + "__";
+  }
+  function d3_transitionNode(node, i, ns, id, inherit) {
+    var lock = node[ns] || (node[ns] = {
+      active: 0,
+      count: 0
+    }), transition = lock[id];
+    if (!transition) {
+      var time = inherit.time;
+      transition = lock[id] = {
+        tween: new d3_Map(),
+        time: time,
+        delay: inherit.delay,
+        duration: inherit.duration,
+        ease: inherit.ease,
+        index: i
+      };
+      inherit = null;
+      ++lock.count;
+      d3.timer(function(elapsed) {
+        var delay = transition.delay, duration, ease, timer = d3_timer_active, tweened = [];
+        timer.t = delay + time;
+        if (delay <= elapsed) return start(elapsed - delay);
+        timer.c = start;
+        function start(elapsed) {
+          if (lock.active > id) return stop();
+          var active = lock[lock.active];
+          if (active) {
+            --lock.count;
+            delete lock[lock.active];
+            active.event && active.event.interrupt.call(node, node.__data__, active.index);
+          }
+          lock.active = id;
+          transition.event && transition.event.start.call(node, node.__data__, i);
+          transition.tween.forEach(function(key, value) {
+            if (value = value.call(node, node.__data__, i)) {
+              tweened.push(value);
+            }
+          });
+          ease = transition.ease;
+          duration = transition.duration;
+          d3.timer(function() {
+            timer.c = tick(elapsed || 1) ? d3_true : tick;
+            return 1;
+          }, 0, time);
+        }
+        function tick(elapsed) {
+          if (lock.active !== id) return 1;
+          var t = elapsed / duration, e = ease(t), n = tweened.length;
+          while (n > 0) {
+            tweened[--n].call(node, e);
+          }
+          if (t >= 1) {
+            transition.event && transition.event.end.call(node, node.__data__, i);
+            return stop();
+          }
+        }
+        function stop() {
+          if (--lock.count) delete lock[id]; else delete node[ns];
+          return 1;
+        }
+      }, 0, time);
+    }
+  }
+  d3.svg.axis = function() {
+    var scale = d3.scale.linear(), orient = d3_svg_axisDefaultOrient, innerTickSize = 6, outerTickSize = 6, tickPadding = 3, tickArguments_ = [ 10 ], tickValues = null, tickFormat_;
+    function axis(g) {
+      g.each(function() {
+        var g = d3.select(this);
+        var scale0 = this.__chart__ || scale, scale1 = this.__chart__ = scale.copy();
+        var ticks = tickValues == null ? scale1.ticks ? scale1.ticks.apply(scale1, tickArguments_) : scale1.domain() : tickValues, tickFormat = tickFormat_ == null ? scale1.tickFormat ? scale1.tickFormat.apply(scale1, tickArguments_) : d3_identity : tickFormat_, tick = g.selectAll(".tick").data(ticks, scale1), tickEnter = tick.enter().insert("g", ".domain").attr("class", "tick").style("opacity", ε), tickExit = d3.transition(tick.exit()).style("opacity", ε).remove(), tickUpdate = d3.transition(tick.order()).style("opacity", 1), tickSpacing = Math.max(innerTickSize, 0) + tickPadding, tickTransform;
+        var range = d3_scaleRange(scale1), path = g.selectAll(".domain").data([ 0 ]), pathUpdate = (path.enter().append("path").attr("class", "domain"), 
+        d3.transition(path));
+        tickEnter.append("line");
+        tickEnter.append("text");
+        var lineEnter = tickEnter.select("line"), lineUpdate = tickUpdate.select("line"), text = tick.select("text").text(tickFormat), textEnter = tickEnter.select("text"), textUpdate = tickUpdate.select("text"), sign = orient === "top" || orient === "left" ? -1 : 1, x1, x2, y1, y2;
+        if (orient === "bottom" || orient === "top") {
+          tickTransform = d3_svg_axisX, x1 = "x", y1 = "y", x2 = "x2", y2 = "y2";
+          text.attr("dy", sign < 0 ? "0em" : ".71em").style("text-anchor", "middle");
+          pathUpdate.attr("d", "M" + range[0] + "," + sign * outerTickSize + "V0H" + range[1] + "V" + sign * outerTickSize);
+        } else {
+          tickTransform = d3_svg_axisY, x1 = "y", y1 = "x", x2 = "y2", y2 = "x2";
+          text.attr("dy", ".32em").style("text-anchor", sign < 0 ? "end" : "start");
+          pathUpdate.attr("d", "M" + sign * outerTickSize + "," + range[0] + "H0V" + range[1] + "H" + sign * outerTickSize);
+        }
+        lineEnter.attr(y2, sign * innerTickSize);
+        textEnter.attr(y1, sign * tickSpacing);
+        lineUpdate.attr(x2, 0).attr(y2, sign * innerTickSize);
+        textUpdate.attr(x1, 0).attr(y1, sign * tickSpacing);
+        if (scale1.rangeBand) {
+          var x = scale1, dx = x.rangeBand() / 2;
+          scale0 = scale1 = function(d) {
+            return x(d) + dx;
+          };
+        } else if (scale0.rangeBand) {
+          scale0 = scale1;
+        } else {
+          tickExit.call(tickTransform, scale1, scale0);
+        }
+        tickEnter.call(tickTransform, scale0, scale1);
+        tickUpdate.call(tickTransform, scale1, scale1);
+      });
+    }
+    axis.scale = function(x) {
+      if (!arguments.length) return scale;
+      scale = x;
+      return axis;
+    };
+    axis.orient = function(x) {
+      if (!arguments.length) return orient;
+      orient = x in d3_svg_axisOrients ? x + "" : d3_svg_axisDefaultOrient;
+      return axis;
+    };
+    axis.ticks = function() {
+      if (!arguments.length) return tickArguments_;
+      tickArguments_ = arguments;
+      return axis;
+    };
+    axis.tickValues = function(x) {
+      if (!arguments.length) return tickValues;
+      tickValues = x;
+      return axis;
+    };
+    axis.tickFormat = function(x) {
+      if (!arguments.length) return tickFormat_;
+      tickFormat_ = x;
+      return axis;
+    };
+    axis.tickSize = function(x) {
+      var n = arguments.length;
+      if (!n) return innerTickSize;
+      innerTickSize = +x;
+      outerTickSize = +arguments[n - 1];
+      return axis;
+    };
+    axis.innerTickSize = function(x) {
+      if (!arguments.length) return innerTickSize;
+      innerTickSize = +x;
+      return axis;
+    };
+    axis.outerTickSize = function(x) {
+      if (!arguments.length) return outerTickSize;
+      outerTickSize = +x;
+      return axis;
+    };
+    axis.tickPadding = function(x) {
+      if (!arguments.length) return tickPadding;
+      tickPadding = +x;
+      return axis;
+    };
+    axis.tickSubdivide = function() {
+      return arguments.length && axis;
+    };
+    return axis;
+  };
+  var d3_svg_axisDefaultOrient = "bottom", d3_svg_axisOrients = {
+    top: 1,
+    right: 1,
+    bottom: 1,
+    left: 1
+  };
+  function d3_svg_axisX(selection, x0, x1) {
+    selection.attr("transform", function(d) {
+      var v0 = x0(d);
+      return "translate(" + (isFinite(v0) ? v0 : x1(d)) + ",0)";
+    });
+  }
+  function d3_svg_axisY(selection, y0, y1) {
+    selection.attr("transform", function(d) {
+      var v0 = y0(d);
+      return "translate(0," + (isFinite(v0) ? v0 : y1(d)) + ")";
+    });
+  }
+  d3.svg.brush = function() {
+    var event = d3_eventDispatch(brush, "brushstart", "brush", "brushend"), x = null, y = null, xExtent = [ 0, 0 ], yExtent = [ 0, 0 ], xExtentDomain, yExtentDomain, xClamp = true, yClamp = true, resizes = d3_svg_brushResizes[0];
+    function brush(g) {
+      g.each(function() {
+        var g = d3.select(this).style("pointer-events", "all").style("-webkit-tap-highlight-color", "rgba(0,0,0,0)").on("mousedown.brush", brushstart).on("touchstart.brush", brushstart);
+        var background = g.selectAll(".background").data([ 0 ]);
+        background.enter().append("rect").attr("class", "background").style("visibility", "hidden").style("cursor", "crosshair");
+        g.selectAll(".extent").data([ 0 ]).enter().append("rect").attr("class", "extent").style("cursor", "move");
+        var resize = g.selectAll(".resize").data(resizes, d3_identity);
+        resize.exit().remove();
+        resize.enter().append("g").attr("class", function(d) {
+          return "resize " + d;
+        }).style("cursor", function(d) {
+          return d3_svg_brushCursor[d];
+        }).append("rect").attr("x", function(d) {
+          return /[ew]$/.test(d) ? -3 : null;
+        }).attr("y", function(d) {
+          return /^[ns]/.test(d) ? -3 : null;
+        }).attr("width", 6).attr("height", 6).style("visibility", "hidden");
+        resize.style("display", brush.empty() ? "none" : null);
+        var gUpdate = d3.transition(g), backgroundUpdate = d3.transition(background), range;
+        if (x) {
+          range = d3_scaleRange(x);
+          backgroundUpdate.attr("x", range[0]).attr("width", range[1] - range[0]);
+          redrawX(gUpdate);
+        }
+        if (y) {
+          range = d3_scaleRange(y);
+          backgroundUpdate.attr("y", range[0]).attr("height", range[1] - range[0]);
+          redrawY(gUpdate);
+        }
+        redraw(gUpdate);
+      });
+    }
+    brush.event = function(g) {
+      g.each(function() {
+        var event_ = event.of(this, arguments), extent1 = {
+          x: xExtent,
+          y: yExtent,
+          i: xExtentDomain,
+          j: yExtentDomain
+        }, extent0 = this.__chart__ || extent1;
+        this.__chart__ = extent1;
+        if (d3_transitionInheritId) {
+          d3.select(this).transition().each("start.brush", function() {
+            xExtentDomain = extent0.i;
+            yExtentDomain = extent0.j;
+            xExtent = extent0.x;
+            yExtent = extent0.y;
+            event_({
+              type: "brushstart"
+            });
+          }).tween("brush:brush", function() {
+            var xi = d3_interpolateArray(xExtent, extent1.x), yi = d3_interpolateArray(yExtent, extent1.y);
+            xExtentDomain = yExtentDomain = null;
+            return function(t) {
+              xExtent = extent1.x = xi(t);
+              yExtent = extent1.y = yi(t);
+              event_({
+                type: "brush",
+                mode: "resize"
+              });
+            };
+          }).each("end.brush", function() {
+            xExtentDomain = extent1.i;
+            yExtentDomain = extent1.j;
+            event_({
+              type: "brush",
+              mode: "resize"
+            });
+            event_({
+              type: "brushend"
+            });
+          });
+        } else {
+          event_({
+            type: "brushstart"
+          });
+          event_({
+            type: "brush",
+            mode: "resize"
+          });
+          event_({
+            type: "brushend"
+          });
+        }
+      });
+    };
+    function redraw(g) {
+      g.selectAll(".resize").attr("transform", function(d) {
+        return "translate(" + xExtent[+/e$/.test(d)] + "," + yExtent[+/^s/.test(d)] + ")";
+      });
+    }
+    function redrawX(g) {
+      g.select(".extent").attr("x", xExtent[0]);
+      g.selectAll(".extent,.n>rect,.s>rect").attr("width", xExtent[1] - xExtent[0]);
+    }
+    function redrawY(g) {
+      g.select(".extent").attr("y", yExtent[0]);
+      g.selectAll(".extent,.e>rect,.w>rect").attr("height", yExtent[1] - yExtent[0]);
+    }
+    function brushstart() {
+      var target = this, eventTarget = d3.select(d3.event.target), event_ = event.of(target, arguments), g = d3.select(target), resizing = eventTarget.datum(), resizingX = !/^(n|s)$/.test(resizing) && x, resizingY = !/^(e|w)$/.test(resizing) && y, dragging = eventTarget.classed("extent"), dragRestore = d3_event_dragSuppress(target), center, origin = d3.mouse(target), offset;
+      var w = d3.select(d3_window(target)).on("keydown.brush", keydown).on("keyup.brush", keyup);
+      if (d3.event.changedTouches) {
+        w.on("touchmove.brush", brushmove).on("touchend.brush", brushend);
+      } else {
+        w.on("mousemove.brush", brushmove).on("mouseup.brush", brushend);
+      }
+      g.interrupt().selectAll("*").interrupt();
+      if (dragging) {
+        origin[0] = xExtent[0] - origin[0];
+        origin[1] = yExtent[0] - origin[1];
+      } else if (resizing) {
+        var ex = +/w$/.test(resizing), ey = +/^n/.test(resizing);
+        offset = [ xExtent[1 - ex] - origin[0], yExtent[1 - ey] - origin[1] ];
+        origin[0] = xExtent[ex];
+        origin[1] = yExtent[ey];
+      } else if (d3.event.altKey) center = origin.slice();
+      g.style("pointer-events", "none").selectAll(".resize").style("display", null);
+      d3.select("body").style("cursor", eventTarget.style("cursor"));
+      event_({
+        type: "brushstart"
+      });
+      brushmove();
+      function keydown() {
+        if (d3.event.keyCode == 32) {
+          if (!dragging) {
+            center = null;
+            origin[0] -= xExtent[1];
+            origin[1] -= yExtent[1];
+            dragging = 2;
+          }
+          d3_eventPreventDefault();
+        }
+      }
+      function keyup() {
+        if (d3.event.keyCode == 32 && dragging == 2) {
+          origin[0] += xExtent[1];
+          origin[1] += yExtent[1];
+          dragging = 0;
+          d3_eventPreventDefault();
+        }
+      }
+      function brushmove() {
+        var point = d3.mouse(target), moved = false;
+        if (offset) {
+          point[0] += offset[0];
+          point[1] += offset[1];
+        }
+        if (!dragging) {
+          if (d3.event.altKey) {
+            if (!center) center = [ (xExtent[0] + xExtent[1]) / 2, (yExtent[0] + yExtent[1]) / 2 ];
+            origin[0] = xExtent[+(point[0] < center[0])];
+            origin[1] = yExtent[+(point[1] < center[1])];
+          } else center = null;
+        }
+        if (resizingX && move1(point, x, 0)) {
+          redrawX(g);
+          moved = true;
+        }
+        if (resizingY && move1(point, y, 1)) {
+          redrawY(g);
+          moved = true;
+        }
+        if (moved) {
+          redraw(g);
+          event_({
+            type: "brush",
+            mode: dragging ? "move" : "resize"
+          });
+        }
+      }
+      function move1(point, scale, i) {
+        var range = d3_scaleRange(scale), r0 = range[0], r1 = range[1], position = origin[i], extent = i ? yExtent : xExtent, size = extent[1] - extent[0], min, max;
+        if (dragging) {
+          r0 -= position;
+          r1 -= size + position;
+        }
+        min = (i ? yClamp : xClamp) ? Math.max(r0, Math.min(r1, point[i])) : point[i];
+        if (dragging) {
+          max = (min += position) + size;
+        } else {
+          if (center) position = Math.max(r0, Math.min(r1, 2 * center[i] - min));
+          if (position < min) {
+            max = min;
+            min = position;
+          } else {
+            max = position;
+          }
+        }
+        if (extent[0] != min || extent[1] != max) {
+          if (i) yExtentDomain = null; else xExtentDomain = null;
+          extent[0] = min;
+          extent[1] = max;
+          return true;
+        }
+      }
+      function brushend() {
+        brushmove();
+        g.style("pointer-events", "all").selectAll(".resize").style("display", brush.empty() ? "none" : null);
+        d3.select("body").style("cursor", null);
+        w.on("mousemove.brush", null).on("mouseup.brush", null).on("touchmove.brush", null).on("touchend.brush", null).on("keydown.brush", null).on("keyup.brush", null);
+        dragRestore();
+        event_({
+          type: "brushend"
+        });
+      }
+    }
+    brush.x = function(z) {
+      if (!arguments.length) return x;
+      x = z;
+      resizes = d3_svg_brushResizes[!x << 1 | !y];
+      return brush;
+    };
+    brush.y = function(z) {
+      if (!arguments.length) return y;
+      y = z;
+      resizes = d3_svg_brushResizes[!x << 1 | !y];
+      return brush;
+    };
+    brush.clamp = function(z) {
+      if (!arguments.length) return x && y ? [ xClamp, yClamp ] : x ? xClamp : y ? yClamp : null;
+      if (x && y) xClamp = !!z[0], yClamp = !!z[1]; else if (x) xClamp = !!z; else if (y) yClamp = !!z;
+      return brush;
+    };
+    brush.extent = function(z) {
+      var x0, x1, y0, y1, t;
+      if (!arguments.length) {
+        if (x) {
+          if (xExtentDomain) {
+            x0 = xExtentDomain[0], x1 = xExtentDomain[1];
+          } else {
+            x0 = xExtent[0], x1 = xExtent[1];
+            if (x.invert) x0 = x.invert(x0), x1 = x.invert(x1);
+            if (x1 < x0) t = x0, x0 = x1, x1 = t;
+          }
+        }
+        if (y) {
+          if (yExtentDomain) {
+            y0 = yExtentDomain[0], y1 = yExtentDomain[1];
+          } else {
+            y0 = yExtent[0], y1 = yExtent[1];
+            if (y.invert) y0 = y.invert(y0), y1 = y.invert(y1);
+            if (y1 < y0) t = y0, y0 = y1, y1 = t;
+          }
+        }
+        return x && y ? [ [ x0, y0 ], [ x1, y1 ] ] : x ? [ x0, x1 ] : y && [ y0, y1 ];
+      }
+      if (x) {
+        x0 = z[0], x1 = z[1];
+        if (y) x0 = x0[0], x1 = x1[0];
+        xExtentDomain = [ x0, x1 ];
+        if (x.invert) x0 = x(x0), x1 = x(x1);
+        if (x1 < x0) t = x0, x0 = x1, x1 = t;
+        if (x0 != xExtent[0] || x1 != xExtent[1]) xExtent = [ x0, x1 ];
+      }
+      if (y) {
+        y0 = z[0], y1 = z[1];
+        if (x) y0 = y0[1], y1 = y1[1];
+        yExtentDomain = [ y0, y1 ];
+        if (y.invert) y0 = y(y0), y1 = y(y1);
+        if (y1 < y0) t = y0, y0 = y1, y1 = t;
+        if (y0 != yExtent[0] || y1 != yExtent[1]) yExtent = [ y0, y1 ];
+      }
+      return brush;
+    };
+    brush.clear = function() {
+      if (!brush.empty()) {
+        xExtent = [ 0, 0 ], yExtent = [ 0, 0 ];
+        xExtentDomain = yExtentDomain = null;
+      }
+      return brush;
+    };
+    brush.empty = function() {
+      return !!x && xExtent[0] == xExtent[1] || !!y && yExtent[0] == yExtent[1];
+    };
+    return d3.rebind(brush, event, "on");
+  };
+  var d3_svg_brushCursor = {
+    n: "ns-resize",
+    e: "ew-resize",
+    s: "ns-resize",
+    w: "ew-resize",
+    nw: "nwse-resize",
+    ne: "nesw-resize",
+    se: "nwse-resize",
+    sw: "nesw-resize"
+  };
+  var d3_svg_brushResizes = [ [ "n", "e", "s", "w", "nw", "ne", "se", "sw" ], [ "e", "w" ], [ "n", "s" ], [] ];
+  var d3_time_format = d3_time.format = d3_locale_enUS.timeFormat;
+  var d3_time_formatUtc = d3_time_format.utc;
+  var d3_time_formatIso = d3_time_formatUtc("%Y-%m-%dT%H:%M:%S.%LZ");
+  d3_time_format.iso = Date.prototype.toISOString && +new Date("2000-01-01T00:00:00.000Z") ? d3_time_formatIsoNative : d3_time_formatIso;
+  function d3_time_formatIsoNative(date) {
+    return date.toISOString();
+  }
+  d3_time_formatIsoNative.parse = function(string) {
+    var date = new Date(string);
+    return isNaN(date) ? null : date;
+  };
+  d3_time_formatIsoNative.toString = d3_time_formatIso.toString;
+  d3_time.second = d3_time_interval(function(date) {
+    return new d3_date(Math.floor(date / 1e3) * 1e3);
+  }, function(date, offset) {
+    date.setTime(date.getTime() + Math.floor(offset) * 1e3);
+  }, function(date) {
+    return date.getSeconds();
+  });
+  d3_time.seconds = d3_time.second.range;
+  d3_time.seconds.utc = d3_time.second.utc.range;
+  d3_time.minute = d3_time_interval(function(date) {
+    return new d3_date(Math.floor(date / 6e4) * 6e4);
+  }, function(date, offset) {
+    date.setTime(date.getTime() + Math.floor(offset) * 6e4);
+  }, function(date) {
+    return date.getMinutes();
+  });
+  d3_time.minutes = d3_time.minute.range;
+  d3_time.minutes.utc = d3_time.minute.utc.range;
+  d3_time.hour = d3_time_interval(function(date) {
+    var timezone = date.getTimezoneOffset() / 60;
+    return new d3_date((Math.floor(date / 36e5 - timezone) + timezone) * 36e5);
+  }, function(date, offset) {
+    date.setTime(date.getTime() + Math.floor(offset) * 36e5);
+  }, function(date) {
+    return date.getHours();
+  });
+  d3_time.hours = d3_time.hour.range;
+  d3_time.hours.utc = d3_time.hour.utc.range;
+  d3_time.month = d3_time_interval(function(date) {
+    date = d3_time.day(date);
+    date.setDate(1);
+    return date;
+  }, function(date, offset) {
+    date.setMonth(date.getMonth() + offset);
+  }, function(date) {
+    return date.getMonth();
+  });
+  d3_time.months = d3_time.month.range;
+  d3_time.months.utc = d3_time.month.utc.range;
+  function d3_time_scale(linear, methods, format) {
+    function scale(x) {
+      return linear(x);
+    }
+    scale.invert = function(x) {
+      return d3_time_scaleDate(linear.invert(x));
+    };
+    scale.domain = function(x) {
+      if (!arguments.length) return linear.domain().map(d3_time_scaleDate);
+      linear.domain(x);
+      return scale;
+    };
+    function tickMethod(extent, count) {
+      var span = extent[1] - extent[0], target = span / count, i = d3.bisect(d3_time_scaleSteps, target);
+      return i == d3_time_scaleSteps.length ? [ methods.year, d3_scale_linearTickRange(extent.map(function(d) {
+        return d / 31536e6;
+      }), count)[2] ] : !i ? [ d3_time_scaleMilliseconds, d3_scale_linearTickRange(extent, count)[2] ] : methods[target / d3_time_scaleSteps[i - 1] < d3_time_scaleSteps[i] / target ? i - 1 : i];
+    }
+    scale.nice = function(interval, skip) {
+      var domain = scale.domain(), extent = d3_scaleExtent(domain), method = interval == null ? tickMethod(extent, 10) : typeof interval === "number" && tickMethod(extent, interval);
+      if (method) interval = method[0], skip = method[1];
+      function skipped(date) {
+        return !isNaN(date) && !interval.range(date, d3_time_scaleDate(+date + 1), skip).length;
+      }
+      return scale.domain(d3_scale_nice(domain, skip > 1 ? {
+        floor: function(date) {
+          while (skipped(date = interval.floor(date))) date = d3_time_scaleDate(date - 1);
+          return date;
+        },
+        ceil: function(date) {
+          while (skipped(date = interval.ceil(date))) date = d3_time_scaleDate(+date + 1);
+          return date;
+        }
+      } : interval));
+    };
+    scale.ticks = function(interval, skip) {
+      var extent = d3_scaleExtent(scale.domain()), method = interval == null ? tickMethod(extent, 10) : typeof interval === "number" ? tickMethod(extent, interval) : !interval.range && [ {
+        range: interval
+      }, skip ];
+      if (method) interval = method[0], skip = method[1];
+      return interval.range(extent[0], d3_time_scaleDate(+extent[1] + 1), skip < 1 ? 1 : skip);
+    };
+    scale.tickFormat = function() {
+      return format;
+    };
+    scale.copy = function() {
+      return d3_time_scale(linear.copy(), methods, format);
+    };
+    return d3_scale_linearRebind(scale, linear);
+  }
+  function d3_time_scaleDate(t) {
+    return new Date(t);
+  }
+  var d3_time_scaleSteps = [ 1e3, 5e3, 15e3, 3e4, 6e4, 3e5, 9e5, 18e5, 36e5, 108e5, 216e5, 432e5, 864e5, 1728e5, 6048e5, 2592e6, 7776e6, 31536e6 ];
+  var d3_time_scaleLocalMethods = [ [ d3_time.second, 1 ], [ d3_time.second, 5 ], [ d3_time.second, 15 ], [ d3_time.second, 30 ], [ d3_time.minute, 1 ], [ d3_time.minute, 5 ], [ d3_time.minute, 15 ], [ d3_time.minute, 30 ], [ d3_time.hour, 1 ], [ d3_time.hour, 3 ], [ d3_time.hour, 6 ], [ d3_time.hour, 12 ], [ d3_time.day, 1 ], [ d3_time.day, 2 ], [ d3_time.week, 1 ], [ d3_time.month, 1 ], [ d3_time.month, 3 ], [ d3_time.year, 1 ] ];
+  var d3_time_scaleLocalFormat = d3_time_format.multi([ [ ".%L", function(d) {
+    return d.getMilliseconds();
+  } ], [ ":%S", function(d) {
+    return d.getSeconds();
+  } ], [ "%I:%M", function(d) {
+    return d.getMinutes();
+  } ], [ "%I %p", function(d) {
+    return d.getHours();
+  } ], [ "%a %d", function(d) {
+    return d.getDay() && d.getDate() != 1;
+  } ], [ "%b %d", function(d) {
+    return d.getDate() != 1;
+  } ], [ "%B", function(d) {
+    return d.getMonth();
+  } ], [ "%Y", d3_true ] ]);
+  var d3_time_scaleMilliseconds = {
+    range: function(start, stop, step) {
+      return d3.range(Math.ceil(start / step) * step, +stop, step).map(d3_time_scaleDate);
+    },
+    floor: d3_identity,
+    ceil: d3_identity
+  };
+  d3_time_scaleLocalMethods.year = d3_time.year;
+  d3_time.scale = function() {
+    return d3_time_scale(d3.scale.linear(), d3_time_scaleLocalMethods, d3_time_scaleLocalFormat);
+  };
+  var d3_time_scaleUtcMethods = d3_time_scaleLocalMethods.map(function(m) {
+    return [ m[0].utc, m[1] ];
+  });
+  var d3_time_scaleUtcFormat = d3_time_formatUtc.multi([ [ ".%L", function(d) {
+    return d.getUTCMilliseconds();
+  } ], [ ":%S", function(d) {
+    return d.getUTCSeconds();
+  } ], [ "%I:%M", function(d) {
+    return d.getUTCMinutes();
+  } ], [ "%I %p", function(d) {
+    return d.getUTCHours();
+  } ], [ "%a %d", function(d) {
+    return d.getUTCDay() && d.getUTCDate() != 1;
+  } ], [ "%b %d", function(d) {
+    return d.getUTCDate() != 1;
+  } ], [ "%B", function(d) {
+    return d.getUTCMonth();
+  } ], [ "%Y", d3_true ] ]);
+  d3_time_scaleUtcMethods.year = d3_time.year.utc;
+  d3_time.scale.utc = function() {
+    return d3_time_scale(d3.scale.linear(), d3_time_scaleUtcMethods, d3_time_scaleUtcFormat);
+  };
+  d3.text = d3_xhrType(function(request) {
+    return request.responseText;
+  });
+  d3.json = function(url, callback) {
+    return d3_xhr(url, "application/json", d3_json, callback);
+  };
+  function d3_json(request) {
+    return JSON.parse(request.responseText);
+  }
+  d3.html = function(url, callback) {
+    return d3_xhr(url, "text/html", d3_html, callback);
+  };
+  function d3_html(request) {
+    var range = d3_document.createRange();
+    range.selectNode(d3_document.body);
+    return range.createContextualFragment(request.responseText);
+  }
+  d3.xml = d3_xhrType(function(request) {
+    return request.responseXML;
+  });
+  if (typeof define === "function" && define.amd) define(d3); else if (typeof module === "object" && module.exports) module.exports = d3;
+  this.d3 = d3;
+}();
\ No newline at end of file
diff --git a/kpi_dashboard/static/lib/nvd3/nv.d3.css b/kpi_dashboard/static/lib/nvd3/nv.d3.css
new file mode 100755
index 00000000..01100bb5
--- /dev/null
+++ b/kpi_dashboard/static/lib/nvd3/nv.d3.css
@@ -0,0 +1,427 @@
+/* nvd3 version 1.8.2-dev (https://github.com/novus/nvd3) 2016-02-08 */
+.nvd3 .nv-axis {
+    pointer-events:none;
+    opacity: 1;
+}
+
+.nvd3 .nv-axis path {
+    fill: none;
+    stroke: #000;
+    stroke-opacity: .75;
+    shape-rendering: crispEdges;
+}
+
+.nvd3 .nv-axis path.domain {
+    stroke-opacity: .75;
+}
+
+.nvd3 .nv-axis.nv-x path.domain {
+    stroke-opacity: 0;
+}
+
+.nvd3 .nv-axis line {
+    fill: none;
+    stroke: #e5e5e5;
+    shape-rendering: crispEdges;
+}
+
+.nvd3 .nv-axis .zero line,
+    /*this selector may not be necessary*/ .nvd3 .nv-axis line.zero {
+    stroke-opacity: .75;
+}
+
+.nvd3 .nv-axis .nv-axisMaxMin text {
+    font-weight: bold;
+}
+
+.nvd3 .x  .nv-axis .nv-axisMaxMin text,
+.nvd3 .x2 .nv-axis .nv-axisMaxMin text,
+.nvd3 .x3 .nv-axis .nv-axisMaxMin text {
+    text-anchor: middle
+}
+
+.nvd3 .nv-axis.nv-disabled {
+    opacity: 0;
+}
+
+/* scatter */
+.nvd3 .nv-groups .nv-point.hover {
+    stroke-width: 20px;
+    stroke-opacity: .5;
+}
+
+.nvd3 .nv-scatter .nv-point.hover {
+    fill-opacity: 1;
+}
+.nv-noninteractive {
+    pointer-events: none;
+}
+
+.nv-distx, .nv-disty {
+    pointer-events: none;
+}
+
+
+
+.nvtooltip {
+    position: absolute;
+    background-color: rgba(255,255,255,1.0);
+    color: rgba(0,0,0,1.0);
+    padding: 1px;
+    border: 1px solid rgba(0,0,0,.2);
+    z-index: 10000;
+    display: block;
+
+    font-family: Arial;
+    font-size: 13px;
+    text-align: left;
+    pointer-events: none;
+
+    white-space: nowrap;
+
+    -webkit-touch-callout: none;
+    -webkit-user-select: none;
+    -khtml-user-select: none;
+    -moz-user-select: none;
+    -ms-user-select: none;
+    user-select: none;
+}
+
+.nvtooltip {
+    background: rgba(255,255,255, 0.8);
+    border: 1px solid rgba(0,0,0,0.5);
+    border-radius: 4px;
+}
+
+/*Give tooltips that old fade in transition by
+    putting a "with-transitions" class on the container div.
+*/
+.nvtooltip.with-transitions, .with-transitions .nvtooltip {
+    transition: opacity 50ms linear;
+    -moz-transition: opacity 50ms linear;
+    -webkit-transition: opacity 50ms linear;
+
+    transition-delay: 200ms;
+    -moz-transition-delay: 200ms;
+    -webkit-transition-delay: 200ms;
+}
+
+.nvtooltip.x-nvtooltip,
+.nvtooltip.y-nvtooltip {
+    padding: 8px;
+}
+
+.nvtooltip h3 {
+    margin: 0;
+    padding: 4px 14px;
+    line-height: 18px;
+    font-weight: normal;
+    background-color: rgba(247,247,247,0.75);
+    color: rgba(0,0,0,1.0);
+    text-align: center;
+
+    border-bottom: 1px solid #ebebeb;
+
+    -webkit-border-radius: 5px 5px 0 0;
+    -moz-border-radius: 5px 5px 0 0;
+    border-radius: 5px 5px 0 0;
+}
+
+.nvtooltip p {
+    margin: 0;
+    padding: 5px 14px;
+    text-align: center;
+}
+
+.nvtooltip span {
+    display: inline-block;
+    margin: 2px 0;
+}
+
+.nvtooltip table {
+    margin: 6px;
+    border-spacing:0;
+}
+
+
+.nvtooltip table td {
+    padding: 2px 9px 2px 0;
+    vertical-align: middle;
+}
+
+.nvtooltip table td.key {
+    font-weight: normal;
+}
+.nvtooltip table td.key.total {
+    font-weight: bold;
+}
+.nvtooltip table td.value {
+    text-align: right;
+    font-weight: bold;
+}
+
+.nvtooltip table tr.highlight td {
+    padding: 1px 9px 1px 0;
+    border-bottom-style: solid;
+    border-bottom-width: 1px;
+    border-top-style: solid;
+    border-top-width: 1px;
+}
+
+.nvtooltip table td.legend-color-guide div {
+    width: 8px;
+    height: 8px;
+    vertical-align: middle;
+}
+
+.nvtooltip table td.legend-color-guide div {
+    width: 12px;
+    height: 12px;
+    border: 1px solid #999;
+}
+
+.nvtooltip .footer {
+    padding: 3px;
+    text-align: center;
+}
+
+.nvtooltip-pending-removal {
+    pointer-events: none;
+    display: none;
+}
+
+
+/****
+Interactive Layer
+*/
+.nvd3 .nv-interactiveGuideLine {
+    pointer-events:none;
+}
+.nvd3 line.nv-guideline {
+    stroke: #ccc;
+}
+
+.nvd3 .nv-bars rect {
+    fill-opacity: .75;
+
+    transition: fill-opacity 250ms linear;
+    -moz-transition: fill-opacity 250ms linear;
+    -webkit-transition: fill-opacity 250ms linear;
+}
+
+.nvd3 .nv-bars rect.hover {
+    fill-opacity: 1;
+}
+
+.nvd3 .nv-bars .hover rect {
+    fill: lightblue;
+}
+
+.nvd3 .nv-bars text {
+    fill: rgba(0,0,0,0);
+}
+
+.nvd3 .nv-bars .hover text {
+    fill: rgba(0,0,0,1);
+}
+
+.nvd3 .nv-multibar .nv-groups rect,
+.nvd3 .nv-multibarHorizontal .nv-groups rect,
+.nvd3 .nv-discretebar .nv-groups rect {
+    stroke-opacity: 0;
+
+    transition: fill-opacity 250ms linear;
+    -moz-transition: fill-opacity 250ms linear;
+    -webkit-transition: fill-opacity 250ms linear;
+}
+
+.nvd3 .nv-multibar .nv-groups rect:hover,
+.nvd3 .nv-multibarHorizontal .nv-groups rect:hover,
+.nvd3 .nv-candlestickBar .nv-ticks rect:hover,
+.nvd3 .nv-discretebar .nv-groups rect:hover {
+    fill-opacity: 1;
+}
+
+.nvd3 .nv-discretebar .nv-groups text,
+.nvd3 .nv-multibarHorizontal .nv-groups text {
+    font-weight: bold;
+    fill: rgba(0,0,0,1);
+    stroke: rgba(0,0,0,0);
+}
+
+.nvd3 .nv-groups path.nv-line {
+    fill: none;
+}
+
+.nvd3 .nv-groups path.nv-area {
+    stroke: none;
+}
+
+.nvd3.nv-line .nvd3.nv-scatter .nv-groups .nv-point {
+    fill-opacity: 0;
+    stroke-opacity: 0;
+}
+
+.nvd3.nv-scatter.nv-single-point .nv-groups .nv-point {
+    fill-opacity: .5 !important;
+    stroke-opacity: .5 !important;
+}
+
+
+.with-transitions .nvd3 .nv-groups .nv-point {
+    transition: stroke-width 250ms linear, stroke-opacity 250ms linear;
+    -moz-transition: stroke-width 250ms linear, stroke-opacity 250ms linear;
+    -webkit-transition: stroke-width 250ms linear, stroke-opacity 250ms linear;
+
+}
+
+.nvd3.nv-scatter .nv-groups .nv-point.hover,
+.nvd3 .nv-groups .nv-point.hover {
+    stroke-width: 7px;
+    fill-opacity: .95 !important;
+    stroke-opacity: .95 !important;
+}
+
+
+.nvd3 .nv-point-paths path {
+    stroke: #aaa;
+    stroke-opacity: 0;
+    fill: #eee;
+    fill-opacity: 0;
+}
+
+
+
+.nvd3 .nv-indexLine {
+    cursor: ew-resize;
+}
+
+/********************
+ * SVG CSS
+ */
+
+/********************
+  Default CSS for an svg element nvd3 used
+*/
+svg.nvd3-svg {
+    -webkit-touch-callout: none;
+    -webkit-user-select: none;
+    -khtml-user-select: none;
+    -ms-user-select: none;
+    -moz-user-select: none;
+    user-select: none;
+    display: block;
+    width:100%;
+    height:100%;
+}
+
+/********************
+  Box shadow and border radius styling
+*/
+.nvtooltip.with-3d-shadow, .with-3d-shadow .nvtooltip {
+    -moz-box-shadow: 0 5px 10px rgba(0,0,0,.2);
+    -webkit-box-shadow: 0 5px 10px rgba(0,0,0,.2);
+    box-shadow: 0 5px 10px rgba(0,0,0,.2);
+
+    -webkit-border-radius: 5px;
+    -moz-border-radius: 5px;
+    border-radius: 5px;
+}
+
+
+.nvd3 text {
+    font: normal 12px Arial;
+}
+
+.nvd3 .title {
+    font: bold 14px Arial;
+}
+
+.nvd3 .nv-background {
+    fill: white;
+    fill-opacity: 0;
+}
+
+.nvd3.nv-noData {
+    font-size: 18px;
+    font-weight: bold;
+}
+
+
+/**********
+*  Brush
+*/
+
+.nv-brush .extent {
+    fill-opacity: .125;
+    shape-rendering: crispEdges;
+}
+
+.nv-brush .resize path {
+    fill: #eee;
+    stroke: #666;
+}
+
+
+/**********
+*  Legend
+*/
+
+.nvd3 .nv-legend .nv-series {
+    cursor: pointer;
+}
+
+.nvd3 .nv-legend .nv-disabled circle {
+    fill-opacity: 0;
+}
+
+/* focus */
+.nvd3 .nv-brush .extent {
+    fill-opacity: 0 !important;
+}
+
+.nvd3 .nv-brushBackground rect {
+    stroke: #000;
+    stroke-width: .4;
+    fill: #fff;
+    fill-opacity: .7;
+}
+
+
+.nvd3.nv-pie path {
+    stroke-opacity: 0;
+    transition: fill-opacity 250ms linear, stroke-width 250ms linear, stroke-opacity 250ms linear;
+    -moz-transition: fill-opacity 250ms linear, stroke-width 250ms linear, stroke-opacity 250ms linear;
+    -webkit-transition: fill-opacity 250ms linear, stroke-width 250ms linear, stroke-opacity 250ms linear;
+
+}
+
+.nvd3.nv-pie .nv-pie-title {
+    font-size: 24px;
+    fill: rgba(19, 196, 249, 0.59);
+}
+
+.nvd3.nv-pie .nv-slice text {
+    stroke: #000;
+    stroke-width: 0;
+}
+
+.nvd3.nv-pie path {
+    stroke: #fff;
+    stroke-width: 1px;
+    stroke-opacity: 1;
+}
+
+.nvd3.nv-pie path {
+    fill-opacity: .7;
+}
+.nvd3.nv-pie .hover path {
+    fill-opacity: 1;
+}
+.nvd3.nv-pie .nv-label {
+    pointer-events: none;
+}
+.nvd3.nv-pie .nv-label rect {
+    fill-opacity: 0;
+    stroke-opacity: 0;
+}
diff --git a/kpi_dashboard/static/lib/nvd3/nv.d3.js b/kpi_dashboard/static/lib/nvd3/nv.d3.js
new file mode 100755
index 00000000..4751ebd6
--- /dev/null
+++ b/kpi_dashboard/static/lib/nvd3/nv.d3.js
@@ -0,0 +1,5985 @@
+/* nvd3 version 1.8.2-dev (https://github.com/novus/nvd3) 2016-02-08 */
+(function(){
+
+// set up main nv object
+var nv = {};
+
+// the major global objects under the nv namespace
+nv.dev = false; //set false when in production
+nv.tooltip = nv.tooltip || {}; // For the tooltip system
+nv.utils = nv.utils || {}; // Utility subsystem
+nv.models = nv.models || {}; //stores all the possible models/components
+nv.charts = {}; //stores all the ready to use charts
+nv.logs = {}; //stores some statistics and potential error messages
+nv.dom = {}; //DOM manipulation functions
+
+// Node/CommonJS - require D3
+if (typeof(module) !== 'undefined' && typeof(exports) !== 'undefined' && typeof(d3) == 'undefined') {
+    d3 = require('d3');
+}
+
+nv.dispatch = d3.dispatch('render_start', 'render_end');
+
+// Function bind polyfill
+// Needed ONLY for phantomJS as it's missing until version 2.0 which is unreleased as of this comment
+// https://github.com/ariya/phantomjs/issues/10522
+// http://kangax.github.io/compat-table/es5/#Function.prototype.bind
+// phantomJS is used for running the test suite
+if (!Function.prototype.bind) {
+    Function.prototype.bind = function (oThis) {
+        if (typeof this !== "function") {
+            // closest thing possible to the ECMAScript 5 internal IsCallable function
+            throw new TypeError("Function.prototype.bind - what is trying to be bound is not callable");
+        }
+
+        var aArgs = Array.prototype.slice.call(arguments, 1),
+            fToBind = this,
+            fNOP = function () {},
+            fBound = function () {
+                return fToBind.apply(this instanceof fNOP && oThis
+                        ? this
+                        : oThis,
+                    aArgs.concat(Array.prototype.slice.call(arguments)));
+            };
+
+        fNOP.prototype = this.prototype;
+        fBound.prototype = new fNOP();
+        return fBound;
+    };
+}
+
+//  Development render timers - disabled if dev = false
+if (nv.dev) {
+    nv.dispatch.on('render_start', function(e) {
+        nv.logs.startTime = +new Date();
+    });
+
+    nv.dispatch.on('render_end', function(e) {
+        nv.logs.endTime = +new Date();
+        nv.logs.totalTime = nv.logs.endTime - nv.logs.startTime;
+        nv.log('total', nv.logs.totalTime); // used for development, to keep track of graph generation times
+    });
+}
+
+// Logs all arguments, and returns the last so you can test things in place
+// Note: in IE8 console.log is an object not a function, and if modernizr is used
+// then calling Function.prototype.bind with with anything other than a function
+// causes a TypeError to be thrown.
+nv.log = function() {
+    if (nv.dev && window.console && console.log && console.log.apply)
+        console.log.apply(console, arguments);
+    else if (nv.dev && window.console && typeof console.log == "function" && Function.prototype.bind) {
+        var log = Function.prototype.bind.call(console.log, console);
+        log.apply(console, arguments);
+    }
+    return arguments[arguments.length - 1];
+};
+
+// print console warning, should be used by deprecated functions
+nv.deprecated = function(name, info) {
+    if (console && console.warn) {
+        console.warn('nvd3 warning: `' + name + '` has been deprecated. ', info || '');
+    }
+};
+
+// The nv.render function is used to queue up chart rendering
+// in non-blocking async functions.
+// When all queued charts are done rendering, nv.dispatch.render_end is invoked.
+nv.render = function render(step) {
+    // number of graphs to generate in each timeout loop
+    step = step || 1;
+
+    nv.render.active = true;
+    nv.dispatch.render_start();
+
+    var renderLoop = function() {
+        var chart, graph;
+
+        for (var i = 0; i < step && (graph = nv.render.queue[i]); i++) {
+            chart = graph.generate();
+            if (typeof graph.callback == typeof(Function)) graph.callback(chart);
+        }
+
+        nv.render.queue.splice(0, i);
+
+        if (nv.render.queue.length) {
+            setTimeout(renderLoop);
+        }
+        else {
+            nv.dispatch.render_end();
+            nv.render.active = false;
+        }
+    };
+
+    setTimeout(renderLoop);
+};
+
+nv.render.active = false;
+nv.render.queue = [];
+
+/*
+Adds a chart to the async rendering queue. This method can take arguments in two forms:
+nv.addGraph({
+    generate: <Function>
+    callback: <Function>
+})
+
+or
+
+nv.addGraph(<generate Function>, <callback Function>)
+
+The generate function should contain code that creates the NVD3 model, sets options
+on it, adds data to an SVG element, and invokes the chart model. The generate function
+should return the chart model.  See examples/lineChart.html for a usage example.
+
+The callback function is optional, and it is called when the generate function completes.
+*/
+nv.addGraph = function(obj) {
+    if (typeof arguments[0] === typeof(Function)) {
+        obj = {generate: arguments[0], callback: arguments[1]};
+    }
+
+    nv.render.queue.push(obj);
+
+    if (!nv.render.active) {
+        nv.render();
+    }
+};
+
+// Node/CommonJS exports
+if (typeof(module) !== 'undefined' && typeof(exports) !== 'undefined') {
+  module.exports = nv;
+}
+
+if (typeof(window) !== 'undefined') {
+  window.nv = nv;
+}
+/* Facade for queueing DOM write operations
+ * with Fastdom (https://github.com/wilsonpage/fastdom)
+ * if available.
+ * This could easily be extended to support alternate
+ * implementations in the future.
+ */
+nv.dom.write = function(callback) {
+	if (window.fastdom !== undefined) {
+		return fastdom.write(callback);
+	}
+	return callback();
+};
+
+/* Facade for queueing DOM read operations
+ * with Fastdom (https://github.com/wilsonpage/fastdom)
+ * if available.
+ * This could easily be extended to support alternate
+ * implementations in the future.
+ */
+nv.dom.read = function(callback) {
+	if (window.fastdom !== undefined) {
+		return fastdom.read(callback);
+	}
+	return callback();
+};/* Utility class to handle creation of an interactive layer.
+ This places a rectangle on top of the chart. When you mouse move over it, it sends a dispatch
+ containing the X-coordinate. It can also render a vertical line where the mouse is located.
+
+ dispatch.elementMousemove is the important event to latch onto.  It is fired whenever the mouse moves over
+ the rectangle. The dispatch is given one object which contains the mouseX/Y location.
+ It also has 'pointXValue', which is the conversion of mouseX to the x-axis scale.
+ */
+nv.interactiveGuideline = function() {
+    "use strict";
+
+    var margin = { left: 0, top: 0 } //Pass the chart's top and left magins. Used to calculate the mouseX/Y.
+        ,   width = null
+        ,   height = null
+        ,   xScale = d3.scale.linear()
+        ,   dispatch = d3.dispatch('elementMousemove', 'elementMouseout', 'elementClick', 'elementDblclick', 'elementMouseDown', 'elementMouseUp')
+        ,   showGuideLine = true
+        ,   svgContainer = null // Must pass the chart's svg, we'll use its mousemove event.
+        ,   tooltip = nv.models.tooltip()
+        ,   isMSIE = "ActiveXObject" in window // Checkt if IE by looking for activeX.
+    ;
+
+    tooltip
+        .duration(0)
+        .hideDelay(0)
+        .hidden(false);
+
+    function layer(selection) {
+        selection.each(function(data) {
+            var container = d3.select(this);
+            var availableWidth = (width || 960), availableHeight = (height || 400);
+            var wrap = container.selectAll("g.nv-wrap.nv-interactiveLineLayer")
+                .data([data]);
+            var wrapEnter = wrap.enter()
+                .append("g").attr("class", " nv-wrap nv-interactiveLineLayer");
+            wrapEnter.append("g").attr("class","nv-interactiveGuideLine");
+
+            if (!svgContainer) {
+                return;
+            }
+
+            function mouseHandler() {
+                var d3mouse = d3.mouse(this);
+                var mouseX = d3mouse[0];
+                var mouseY = d3mouse[1];
+                var subtractMargin = true;
+                var mouseOutAnyReason = false;
+                if (isMSIE) {
+                    /*
+                     D3.js (or maybe SVG.getScreenCTM) has a nasty bug in Internet Explorer 10.
+                     d3.mouse() returns incorrect X,Y mouse coordinates when mouse moving
+                     over a rect in IE 10.
+                     However, d3.event.offsetX/Y also returns the mouse coordinates
+                     relative to the triggering <rect>. So we use offsetX/Y on IE.
+                     */
+                    mouseX = d3.event.offsetX;
+                    mouseY = d3.event.offsetY;
+
+                    /*
+                     On IE, if you attach a mouse event listener to the <svg> container,
+                     it will actually trigger it for all the child elements (like <path>, <circle>, etc).
+                     When this happens on IE, the offsetX/Y is set to where ever the child element
+                     is located.
+                     As a result, we do NOT need to subtract margins to figure out the mouse X/Y
+                     position under this scenario. Removing the line below *will* cause
+                     the interactive layer to not work right on IE.
+                     */
+                    if(d3.event.target.tagName !== "svg") {
+                        subtractMargin = false;
+                    }
+
+                    if (d3.event.target.className.baseVal.match("nv-legend")) {
+                        mouseOutAnyReason = true;
+                    }
+
+                }
+
+                if(subtractMargin) {
+                    mouseX -= margin.left;
+                    mouseY -= margin.top;
+                }
+
+                /* If mouseX/Y is outside of the chart's bounds,
+                 trigger a mouseOut event.
+                 */
+                if (d3.event.type === 'mouseout'
+                    || mouseX < 0 || mouseY < 0
+                    || mouseX > availableWidth || mouseY > availableHeight
+                    || (d3.event.relatedTarget && d3.event.relatedTarget.ownerSVGElement === undefined)
+                    || mouseOutAnyReason
+                    ) {
+
+                    if (isMSIE) {
+                        if (d3.event.relatedTarget
+                            && d3.event.relatedTarget.ownerSVGElement === undefined
+                            && (d3.event.relatedTarget.className === undefined
+                                || d3.event.relatedTarget.className.match(tooltip.nvPointerEventsClass))) {
+
+                            return;
+                        }
+                    }
+                    dispatch.elementMouseout({
+                        mouseX: mouseX,
+                        mouseY: mouseY
+                    });
+                    layer.renderGuideLine(null); //hide the guideline
+                    tooltip.hidden(true);
+                    return;
+                } else {
+                    tooltip.hidden(false);
+                }
+
+
+                var scaleIsOrdinal = typeof xScale.rangeBands === 'function';
+                var pointXValue = undefined;
+
+                // Ordinal scale has no invert method
+                if (scaleIsOrdinal) {
+                    var elementIndex = d3.bisect(xScale.range(), mouseX) - 1;
+                    // Check if mouseX is in the range band
+                    if (xScale.range()[elementIndex] + xScale.rangeBand() >= mouseX) {
+                        pointXValue = xScale.domain()[d3.bisect(xScale.range(), mouseX) - 1];
+                    }
+                    else {
+                        dispatch.elementMouseout({
+                            mouseX: mouseX,
+                            mouseY: mouseY
+                        });
+                        layer.renderGuideLine(null); //hide the guideline
+                        tooltip.hidden(true);
+                        return;
+                    }
+                }
+                else {
+                    pointXValue = xScale.invert(mouseX);
+                }
+
+                dispatch.elementMousemove({
+                    mouseX: mouseX,
+                    mouseY: mouseY,
+                    pointXValue: pointXValue
+                });
+
+                //If user double clicks the layer, fire a elementDblclick
+                if (d3.event.type === "dblclick") {
+                    dispatch.elementDblclick({
+                        mouseX: mouseX,
+                        mouseY: mouseY,
+                        pointXValue: pointXValue
+                    });
+                }
+
+                // if user single clicks the layer, fire elementClick
+                if (d3.event.type === 'click') {
+                    dispatch.elementClick({
+                        mouseX: mouseX,
+                        mouseY: mouseY,
+                        pointXValue: pointXValue
+                    });
+                }
+
+                // if user presses mouse down the layer, fire elementMouseDown
+                if (d3.event.type === 'mousedown') {
+                	dispatch.elementMouseDown({
+                		mouseX: mouseX,
+                		mouseY: mouseY,
+                		pointXValue: pointXValue
+                	});
+                }
+
+                // if user presses mouse down the layer, fire elementMouseUp
+                if (d3.event.type === 'mouseup') {
+                	dispatch.elementMouseUp({
+                		mouseX: mouseX,
+                		mouseY: mouseY,
+                		pointXValue: pointXValue
+                	});
+                }
+            }
+
+            svgContainer
+                .on("touchmove",mouseHandler)
+                .on("mousemove",mouseHandler, true)
+                .on("mouseout" ,mouseHandler,true)
+                .on("mousedown" ,mouseHandler,true)
+                .on("mouseup" ,mouseHandler,true)
+                .on("dblclick" ,mouseHandler)
+                .on("click", mouseHandler)
+            ;
+
+            layer.guideLine = null;
+            //Draws a vertical guideline at the given X postion.
+            layer.renderGuideLine = function(x) {
+                if (!showGuideLine) return;
+                if (layer.guideLine && layer.guideLine.attr("x1") === x) return;
+                nv.dom.write(function() {
+                    var line = wrap.select(".nv-interactiveGuideLine")
+                        .selectAll("line")
+                        .data((x != null) ? [nv.utils.NaNtoZero(x)] : [], String);
+                    line.enter()
+                        .append("line")
+                        .attr("class", "nv-guideline")
+                        .attr("x1", function(d) { return d;})
+                        .attr("x2", function(d) { return d;})
+                        .attr("y1", availableHeight)
+                        .attr("y2",0);
+                    line.exit().remove();
+                });
+            }
+        });
+    }
+
+    layer.dispatch = dispatch;
+    layer.tooltip = tooltip;
+
+    layer.margin = function(_) {
+        if (!arguments.length) return margin;
+        margin.top    = typeof _.top    != 'undefined' ? _.top    : margin.top;
+        margin.left   = typeof _.left   != 'undefined' ? _.left   : margin.left;
+        return layer;
+    };
+
+    layer.width = function(_) {
+        if (!arguments.length) return width;
+        width = _;
+        return layer;
+    };
+
+    layer.height = function(_) {
+        if (!arguments.length) return height;
+        height = _;
+        return layer;
+    };
+
+    layer.xScale = function(_) {
+        if (!arguments.length) return xScale;
+        xScale = _;
+        return layer;
+    };
+
+    layer.showGuideLine = function(_) {
+        if (!arguments.length) return showGuideLine;
+        showGuideLine = _;
+        return layer;
+    };
+
+    layer.svgContainer = function(_) {
+        if (!arguments.length) return svgContainer;
+        svgContainer = _;
+        return layer;
+    };
+
+    return layer;
+};
+
+/* Utility class that uses d3.bisect to find the index in a given array, where a search value can be inserted.
+ This is different from normal bisectLeft; this function finds the nearest index to insert the search value.
+
+ For instance, lets say your array is [1,2,3,5,10,30], and you search for 28.
+ Normal d3.bisectLeft will return 4, because 28 is inserted after the number 10.  But interactiveBisect will return 5
+ because 28 is closer to 30 than 10.
+
+ Unit tests can be found in: interactiveBisectTest.html
+
+ Has the following known issues:
+ * Will not work if the data points move backwards (ie, 10,9,8,7, etc) or if the data points are in random order.
+ * Won't work if there are duplicate x coordinate values.
+ */
+nv.interactiveBisect = function (values, searchVal, xAccessor) {
+    "use strict";
+    if (! (values instanceof Array)) {
+        return null;
+    }
+    var _xAccessor;
+    if (typeof xAccessor !== 'function') {
+        _xAccessor = function(d) {
+            return d.x;
+        }
+    } else {
+        _xAccessor = xAccessor;
+    }
+    var _cmp = function(d, v) {
+        // Accessors are no longer passed the index of the element along with
+        // the element itself when invoked by d3.bisector.
+        //
+        // Starting at D3 v3.4.4, d3.bisector() started inspecting the
+        // function passed to determine if it should consider it an accessor
+        // or a comparator. This meant that accessors that take two arguments
+        // (expecting an index as the second parameter) are treated as
+        // comparators where the second argument is the search value against
+        // which the first argument is compared.
+        return _xAccessor(d) - v;
+    };
+
+    var bisect = d3.bisector(_cmp).left;
+    var index = d3.max([0, bisect(values,searchVal) - 1]);
+    var currentValue = _xAccessor(values[index]);
+
+    if (typeof currentValue === 'undefined') {
+        currentValue = index;
+    }
+
+    if (currentValue === searchVal) {
+        return index; //found exact match
+    }
+
+    var nextIndex = d3.min([index+1, values.length - 1]);
+    var nextValue = _xAccessor(values[nextIndex]);
+
+    if (typeof nextValue === 'undefined') {
+        nextValue = nextIndex;
+    }
+
+    if (Math.abs(nextValue - searchVal) >= Math.abs(currentValue - searchVal)) {
+        return index;
+    } else {
+        return nextIndex
+    }
+};
+
+/*
+ Returns the index in the array "values" that is closest to searchVal.
+ Only returns an index if searchVal is within some "threshold".
+ Otherwise, returns null.
+ */
+nv.nearestValueIndex = function (values, searchVal, threshold) {
+    "use strict";
+    var yDistMax = Infinity, indexToHighlight = null;
+    values.forEach(function(d,i) {
+        var delta = Math.abs(searchVal - d);
+        if ( d != null && delta <= yDistMax && delta < threshold) {
+            yDistMax = delta;
+            indexToHighlight = i;
+        }
+    });
+    return indexToHighlight;
+};
+
+/* Model which can be instantiated to handle tooltip rendering.
+ Example usage:
+ var tip = nv.models.tooltip().gravity('w').distance(23)
+ .data(myDataObject);
+
+ tip();    //just invoke the returned function to render tooltip.
+ */
+nv.models.tooltip = function() {
+    "use strict";
+
+    /*
+    Tooltip data. If data is given in the proper format, a consistent tooltip is generated.
+    Example Format of data:
+    {
+        key: "Date",
+        value: "August 2009",
+        series: [
+            {key: "Series 1", value: "Value 1", color: "#000"},
+            {key: "Series 2", value: "Value 2", color: "#00f"}
+        ]
+    }
+    */
+    var id = "nvtooltip-" + Math.floor(Math.random() * 100000) // Generates a unique id when you create a new tooltip() object.
+        ,   data = null
+        ,   gravity = 'w'   // Can be 'n','s','e','w'. Determines how tooltip is positioned.
+        ,   distance = 25 // Distance to offset tooltip from the mouse location.
+        ,   snapDistance = 0   // Tolerance allowed before tooltip is moved from its current position (creates 'snapping' effect)
+        ,   classes = null  // Attaches additional CSS classes to the tooltip DIV that is created.
+        ,   chartContainer = null // Parent dom element of the SVG that holds the chart.
+        ,   hidden = true  // Start off hidden, toggle with hide/show functions below.
+        ,   hideDelay = 200  // Delay (in ms) before the tooltip hides after calling hide().
+        ,   tooltip = null // d3 select of the tooltip div.
+        ,   lastPosition = { left: null, top: null } // Last position the tooltip was in.
+        ,   enabled = true  // True -> tooltips are rendered. False -> don't render tooltips.
+        ,   duration = 100 // Tooltip movement duration, in ms.
+        ,   headerEnabled = true // If is to show the tooltip header.
+        ,   nvPointerEventsClass = "nv-pointer-events-none" // CSS class to specify whether element should not have mouse events.
+    ;
+
+    /*
+     Function that returns the position (relative to the viewport) the tooltip should be placed in.
+     Should return: {
+        left: <leftPos>,
+        top: <topPos>
+     }
+     */
+    var position = function() {
+        return {
+            left: d3.event !== null ? d3.event.clientX : 0,
+            top: d3.event !== null ? d3.event.clientY : 0
+        };
+    };
+
+    // Format function for the tooltip values column.
+    var valueFormatter = function(d, i) {
+        return d;
+    };
+
+    // Format function for the tooltip header value.
+    var headerFormatter = function(d) {
+        return d;
+    };
+
+    var keyFormatter = function(d, i) {
+        return d;
+    };
+
+    // By default, the tooltip model renders a beautiful table inside a DIV.
+    // You can override this function if a custom tooltip is desired.
+    var contentGenerator = function(d) {
+        if (d === null) {
+            return '';
+        }
+
+        var table = d3.select(document.createElement("table"));
+        if (headerEnabled) {
+            var theadEnter = table.selectAll("thead")
+                .data([d])
+                .enter().append("thead");
+
+            theadEnter.append("tr")
+                .append("td")
+                .attr("colspan", 3)
+                .append("strong")
+                .classed("x-value", true)
+                .html(headerFormatter(d.value));
+        }
+
+        var tbodyEnter = table.selectAll("tbody")
+            .data([d])
+            .enter().append("tbody");
+
+        var trowEnter = tbodyEnter.selectAll("tr")
+                .data(function(p) { return p.series})
+                .enter()
+                .append("tr")
+                .classed("highlight", function(p) { return p.highlight});
+
+        trowEnter.append("td")
+            .classed("legend-color-guide",true)
+            .append("div")
+            .style("background-color", function(p) { return p.color});
+
+        trowEnter.append("td")
+            .classed("key",true)
+            .classed("total",function(p) { return !!p.total})
+            .html(function(p, i) { return keyFormatter(p.key, i)});
+
+        trowEnter.append("td")
+            .classed("value",true)
+            .html(function(p, i) { return valueFormatter(p.value, i) });
+
+        trowEnter.selectAll("td").each(function(p) {
+            if (p.highlight) {
+                var opacityScale = d3.scale.linear().domain([0,1]).range(["#fff",p.color]);
+                var opacity = 0.6;
+                d3.select(this)
+                    .style("border-bottom-color", opacityScale(opacity))
+                    .style("border-top-color", opacityScale(opacity))
+                ;
+            }
+        });
+
+        var html = table.node().outerHTML;
+        if (d.footer !== undefined)
+            html += "<div class='footer'>" + d.footer + "</div>";
+        return html;
+
+    };
+
+    var dataSeriesExists = function(d) {
+        if (d && d.series) {
+            if (nv.utils.isArray(d.series)) {
+                return true;
+            }
+            // if object, it's okay just convert to array of the object
+            if (nv.utils.isObject(d.series)) {
+                d.series = [d.series];
+                return true;
+            }
+        }
+        return false;
+    };
+
+    // Calculates the gravity offset of the tooltip. Parameter is position of tooltip
+    // relative to the viewport.
+    var calcGravityOffset = function(pos) {
+        var height = tooltip.node().offsetHeight,
+            width = tooltip.node().offsetWidth,
+            clientWidth = document.documentElement.clientWidth, // Don't want scrollbars.
+            clientHeight = document.documentElement.clientHeight, // Don't want scrollbars.
+            left, top, tmp;
+
+        // calculate position based on gravity
+        switch (gravity) {
+            case 'e':
+                left = - width - distance;
+                top = - (height / 2);
+                if(pos.left + left < 0) left = distance;
+                if((tmp = pos.top + top) < 0) top -= tmp;
+                if((tmp = pos.top + top + height) > clientHeight) top -= tmp - clientHeight;
+                break;
+            case 'w':
+                left = distance;
+                top = - (height / 2);
+                if (pos.left + left + width > clientWidth) left = - width - distance;
+                if ((tmp = pos.top + top) < 0) top -= tmp;
+                if ((tmp = pos.top + top + height) > clientHeight) top -= tmp - clientHeight;
+                break;
+            case 'n':
+                left = - (width / 2) - 5; // - 5 is an approximation of the mouse's height.
+                top = distance;
+                if (pos.top + top + height > clientHeight) top = - height - distance;
+                if ((tmp = pos.left + left) < 0) left -= tmp;
+                if ((tmp = pos.left + left + width) > clientWidth) left -= tmp - clientWidth;
+                break;
+            case 's':
+                left = - (width / 2);
+                top = - height - distance;
+                if (pos.top + top < 0) top = distance;
+                if ((tmp = pos.left + left) < 0) left -= tmp;
+                if ((tmp = pos.left + left + width) > clientWidth) left -= tmp - clientWidth;
+                break;
+            case 'center':
+                left = - (width / 2);
+                top = - (height / 2);
+                break;
+            default:
+                left = 0;
+                top = 0;
+                break;
+        }
+
+        return { 'left': left, 'top': top };
+    };
+
+    /*
+     Positions the tooltip in the correct place, as given by the position() function.
+     */
+    var positionTooltip = function() {
+        nv.dom.read(function() {
+            var pos = position(),
+                gravityOffset = calcGravityOffset(pos),
+                left = pos.left + gravityOffset.left,
+                top = pos.top + gravityOffset.top;
+
+            // delay hiding a bit to avoid flickering
+            if (hidden) {
+                tooltip
+                    .interrupt()
+                    .transition()
+                    .delay(hideDelay)
+                    .duration(0)
+                    .style('opacity', 0);
+            } else {
+                // using tooltip.style('transform') returns values un-usable for tween
+                var old_translate = 'translate(' + lastPosition.left + 'px, ' + lastPosition.top + 'px)';
+                var new_translate = 'translate(' + left + 'px, ' + top + 'px)';
+                var translateInterpolator = d3.interpolateString(old_translate, new_translate);
+                var is_hidden = tooltip.style('opacity') < 0.1;
+
+                tooltip
+                    .interrupt() // cancel running transitions
+                    .transition()
+                    .duration(is_hidden ? 0 : duration)
+                    // using tween since some versions of d3 can't auto-tween a translate on a div
+                    .styleTween('transform', function (d) {
+                        return translateInterpolator;
+                    }, 'important')
+                    // Safari has its own `-webkit-transform` and does not support `transform`
+                    .styleTween('-webkit-transform', function (d) {
+                        return translateInterpolator;
+                    })
+                    .style('-ms-transform', new_translate)
+                    .style('opacity', 1);
+            }
+
+            lastPosition.left = left;
+            lastPosition.top = top;
+        });
+    };
+
+    // Creates new tooltip container, or uses existing one on DOM.
+    function initTooltip() {
+        if (!tooltip || !tooltip.node()) {
+            var container = chartContainer ? chartContainer : document.body;
+            // Create new tooltip div if it doesn't exist on DOM.
+
+            var data = [1];
+            tooltip = d3.select(container).selectAll('.nvtooltip').data(data);
+
+            tooltip.enter().append('div')
+                   .attr("class", "nvtooltip " + (classes ? classes : "xy-tooltip"))
+                   .attr("id", id)
+                   .style("top", 0).style("left", 0)
+                   .style('opacity', 0)
+                   .style('position', 'fixed')
+                   .selectAll("div, table, td, tr").classed(nvPointerEventsClass, true)
+                   .classed(nvPointerEventsClass, true);
+
+            tooltip.exit().remove()
+        }
+    }
+
+    // Draw the tooltip onto the DOM.
+    function nvtooltip() {
+        if (!enabled) return;
+        if (!dataSeriesExists(data)) return;
+
+        nv.dom.write(function () {
+            initTooltip();
+            // Generate data and set it into tooltip.
+            // Bonus - If you override contentGenerator and return falsey you can use something like
+            //         React or Knockout to bind the data for your tooltip.
+            var newContent = contentGenerator(data);
+            if (newContent) {
+                tooltip.node().innerHTML = newContent;
+            }
+
+            positionTooltip();
+        });
+
+        return nvtooltip;
+    }
+
+    nvtooltip.nvPointerEventsClass = nvPointerEventsClass;
+    nvtooltip.options = nv.utils.optionsFunc.bind(nvtooltip);
+
+    nvtooltip._options = Object.create({}, {
+        // simple read/write options
+        duration: {get: function(){return duration;}, set: function(_){duration=_;}},
+        gravity: {get: function(){return gravity;}, set: function(_){gravity=_;}},
+        distance: {get: function(){return distance;}, set: function(_){distance=_;}},
+        snapDistance: {get: function(){return snapDistance;}, set: function(_){snapDistance=_;}},
+        classes: {get: function(){return classes;}, set: function(_){classes=_;}},
+        chartContainer: {get: function(){return chartContainer;}, set: function(_){chartContainer=_;}},
+        enabled: {get: function(){return enabled;}, set: function(_){enabled=_;}},
+        hideDelay: {get: function(){return hideDelay;}, set: function(_){hideDelay=_;}},
+        contentGenerator: {get: function(){return contentGenerator;}, set: function(_){contentGenerator=_;}},
+        valueFormatter: {get: function(){return valueFormatter;}, set: function(_){valueFormatter=_;}},
+        headerFormatter: {get: function(){return headerFormatter;}, set: function(_){headerFormatter=_;}},
+        keyFormatter: {get: function(){return keyFormatter;}, set: function(_){keyFormatter=_;}},
+        headerEnabled: {get: function(){return headerEnabled;}, set: function(_){headerEnabled=_;}},
+        position: {get: function(){return position;}, set: function(_){position=_;}},
+
+        // Deprecated options
+        fixedTop: {get: function(){return null;}, set: function(_){
+            // deprecated after 1.8.1
+            nv.deprecated('fixedTop', 'feature removed after 1.8.1');
+        }},
+        offset: {get: function(){return {left: 0, top: 0};}, set: function(_){
+            // deprecated after 1.8.1
+            nv.deprecated('offset', 'use chart.tooltip.distance() instead');
+        }},
+
+        // options with extra logic
+        hidden: {get: function(){return hidden;}, set: function(_){
+            if (hidden != _) {
+                hidden = !!_;
+                nvtooltip();
+            }
+        }},
+        data: {get: function(){return data;}, set: function(_){
+            // if showing a single data point, adjust data format with that
+            if (_.point) {
+                _.value = _.point.x;
+                _.series = _.series || {};
+                _.series.value = _.point.y;
+                _.series.color = _.point.color || _.series.color;
+            }
+            data = _;
+        }},
+
+        // read only properties
+        node: {get: function(){return tooltip.node();}, set: function(_){}},
+        id: {get: function(){return id;}, set: function(_){}}
+    });
+
+    nv.utils.initOptions(nvtooltip);
+    return nvtooltip;
+};
+
+
+/*
+Gets the browser window size
+
+Returns object with height and width properties
+ */
+nv.utils.windowSize = function() {
+    // Sane defaults
+    var size = {width: 640, height: 480};
+
+    // Most recent browsers use
+    if (window.innerWidth && window.innerHeight) {
+        size.width = window.innerWidth;
+        size.height = window.innerHeight;
+        return (size);
+    }
+
+    // IE can use depending on mode it is in
+    if (document.compatMode=='CSS1Compat' &&
+        document.documentElement &&
+        document.documentElement.offsetWidth ) {
+
+        size.width = document.documentElement.offsetWidth;
+        size.height = document.documentElement.offsetHeight;
+        return (size);
+    }
+
+    // Earlier IE uses Doc.body
+    if (document.body && document.body.offsetWidth) {
+        size.width = document.body.offsetWidth;
+        size.height = document.body.offsetHeight;
+        return (size);
+    }
+
+    return (size);
+};
+
+
+/* handle dumb browser quirks...  isinstance breaks if you use frames
+typeof returns 'object' for null, NaN is a number, etc.
+ */
+nv.utils.isArray = Array.isArray;
+nv.utils.isObject = function(a) {
+    return a !== null && typeof a === 'object';
+};
+nv.utils.isFunction = function(a) {
+    return typeof a === 'function';
+};
+nv.utils.isDate = function(a) {
+    return toString.call(a) === '[object Date]';
+};
+nv.utils.isNumber = function(a) {
+    return !isNaN(a) && typeof a === 'number';
+};
+
+
+/*
+Binds callback function to run when window is resized
+ */
+nv.utils.windowResize = function(handler) {
+    if (window.addEventListener) {
+        window.addEventListener('resize', handler);
+    } else {
+        nv.log("ERROR: Failed to bind to window.resize with: ", handler);
+    }
+    // return object with clear function to remove the single added callback.
+    return {
+        callback: handler,
+        clear: function() {
+            window.removeEventListener('resize', handler);
+        }
+    }
+};
+
+
+/*
+Backwards compatible way to implement more d3-like coloring of graphs.
+Can take in nothing, an array, or a function/scale
+To use a normal scale, get the range and pass that because we must be able
+to take two arguments and use the index to keep backward compatibility
+*/
+nv.utils.getColor = function(color) {
+    //if you pass in nothing, get default colors back
+    if (color === undefined) {
+        return nv.utils.defaultColor();
+
+    //if passed an array, turn it into a color scale
+    } else if(nv.utils.isArray(color)) {
+        var color_scale = d3.scale.ordinal().range(color);
+        return function(d, i) {
+            var key = i === undefined ? d : i;
+            return d.color || color_scale(key);
+        };
+
+    //if passed a function or scale, return it, or whatever it may be
+    //external libs, such as angularjs-nvd3-directives use this
+    } else {
+        //can't really help it if someone passes rubbish as color
+        return color;
+    }
+};
+
+
+/*
+Default color chooser uses a color scale of 20 colors from D3
+ https://github.com/mbostock/d3/wiki/Ordinal-Scales#categorical-colors
+ */
+nv.utils.defaultColor = function() {
+    // get range of the scale so we'll turn it into our own function.
+    return nv.utils.getColor(d3.scale.category20().range());
+};
+
+
+/*
+Returns a color function that takes the result of 'getKey' for each series and
+looks for a corresponding color from the dictionary
+*/
+nv.utils.customTheme = function(dictionary, getKey, defaultColors) {
+    // use default series.key if getKey is undefined
+    getKey = getKey || function(series) { return series.key };
+    defaultColors = defaultColors || d3.scale.category20().range();
+
+    // start at end of default color list and walk back to index 0
+    var defIndex = defaultColors.length;
+
+    return function(series, index) {
+        var key = getKey(series);
+        if (nv.utils.isFunction(dictionary[key])) {
+            return dictionary[key]();
+        } else if (dictionary[key] !== undefined) {
+            return dictionary[key];
+        } else {
+            // no match in dictionary, use a default color
+            if (!defIndex) {
+                // used all the default colors, start over
+                defIndex = defaultColors.length;
+            }
+            defIndex = defIndex - 1;
+            return defaultColors[defIndex];
+        }
+    };
+};
+
+
+/*
+From the PJAX example on d3js.org, while this is not really directly needed
+it's a very cool method for doing pjax, I may expand upon it a little bit,
+open to suggestions on anything that may be useful
+*/
+nv.utils.pjax = function(links, content) {
+
+    var load = function(href) {
+        d3.html(href, function(fragment) {
+            var target = d3.select(content).node();
+            target.parentNode.replaceChild(
+                d3.select(fragment).select(content).node(),
+                target);
+            nv.utils.pjax(links, content);
+        });
+    };
+
+    d3.selectAll(links).on("click", function() {
+        history.pushState(this.href, this.textContent, this.href);
+        load(this.href);
+        d3.event.preventDefault();
+    });
+
+    d3.select(window).on("popstate", function() {
+        if (d3.event.state) {
+            load(d3.event.state);
+        }
+    });
+};
+
+
+/*
+For when we want to approximate the width in pixels for an SVG:text element.
+Most common instance is when the element is in a display:none; container.
+Forumla is : text.length * font-size * constant_factor
+*/
+nv.utils.calcApproxTextWidth = function (svgTextElem) {
+    if (nv.utils.isFunction(svgTextElem.style) && nv.utils.isFunction(svgTextElem.text)) {
+        var fontSize = parseInt(svgTextElem.style("font-size").replace("px",""), 10);
+        var textLength = svgTextElem.text().length;
+        return nv.utils.NaNtoZero(textLength * fontSize * 0.5);
+    }
+    return 0;
+};
+
+
+/*
+Numbers that are undefined, null or NaN, convert them to zeros.
+*/
+nv.utils.NaNtoZero = function(n) {
+    if (!nv.utils.isNumber(n)
+        || isNaN(n)
+        || n === null
+        || n === Infinity
+        || n === -Infinity) {
+
+        return 0;
+    }
+    return n;
+};
+
+/*
+Add a way to watch for d3 transition ends to d3
+*/
+d3.selection.prototype.watchTransition = function(renderWatch){
+    var args = [this].concat([].slice.call(arguments, 1));
+    return renderWatch.transition.apply(renderWatch, args);
+};
+
+
+/*
+Helper object to watch when d3 has rendered something
+*/
+nv.utils.renderWatch = function(dispatch, duration) {
+    if (!(this instanceof nv.utils.renderWatch)) {
+        return new nv.utils.renderWatch(dispatch, duration);
+    }
+
+    var _duration = duration !== undefined ? duration : 250;
+    var renderStack = [];
+    var self = this;
+
+    this.models = function(models) {
+        models = [].slice.call(arguments, 0);
+        models.forEach(function(model){
+            model.__rendered = false;
+            (function(m){
+                m.dispatch.on('renderEnd', function(arg){
+                    m.__rendered = true;
+                    self.renderEnd('model');
+                });
+            })(model);
+
+            if (renderStack.indexOf(model) < 0) {
+                renderStack.push(model);
+            }
+        });
+    return this;
+    };
+
+    this.reset = function(duration) {
+        if (duration !== undefined) {
+            _duration = duration;
+        }
+        renderStack = [];
+    };
+
+    this.transition = function(selection, args, duration) {
+        args = arguments.length > 1 ? [].slice.call(arguments, 1) : [];
+
+        if (args.length > 1) {
+            duration = args.pop();
+        } else {
+            duration = _duration !== undefined ? _duration : 250;
+        }
+        selection.__rendered = false;
+
+        if (renderStack.indexOf(selection) < 0) {
+            renderStack.push(selection);
+        }
+
+        if (duration === 0) {
+            selection.__rendered = true;
+            selection.delay = function() { return this; };
+            selection.duration = function() { return this; };
+            return selection;
+        } else {
+            if (selection.length === 0) {
+                selection.__rendered = true;
+            } else if (selection.every( function(d){ return !d.length; } )) {
+                selection.__rendered = true;
+            } else {
+                selection.__rendered = false;
+            }
+
+            var n = 0;
+            return selection
+                .transition()
+                .duration(duration)
+                .each(function(){ ++n; })
+                .each('end', function(d, i) {
+                    if (--n === 0) {
+                        selection.__rendered = true;
+                        self.renderEnd.apply(this, args);
+                    }
+                });
+        }
+    };
+
+    this.renderEnd = function() {
+        if (renderStack.every( function(d){ return d.__rendered; } )) {
+            renderStack.forEach( function(d){ d.__rendered = false; });
+            dispatch.renderEnd.apply(this, arguments);
+        }
+    }
+
+};
+
+
+/*
+Takes multiple objects and combines them into the first one (dst)
+example:  nv.utils.deepExtend({a: 1}, {a: 2, b: 3}, {c: 4});
+gives:  {a: 2, b: 3, c: 4}
+*/
+nv.utils.deepExtend = function(dst){
+    var sources = arguments.length > 1 ? [].slice.call(arguments, 1) : [];
+    sources.forEach(function(source) {
+        for (var key in source) {
+            var isArray = nv.utils.isArray(dst[key]);
+            var isObject = nv.utils.isObject(dst[key]);
+            var srcObj = nv.utils.isObject(source[key]);
+
+            if (isObject && !isArray && srcObj) {
+                nv.utils.deepExtend(dst[key], source[key]);
+            } else {
+                dst[key] = source[key];
+            }
+        }
+    });
+};
+
+
+/*
+state utility object, used to track d3 states in the models
+*/
+nv.utils.state = function(){
+    if (!(this instanceof nv.utils.state)) {
+        return new nv.utils.state();
+    }
+    var state = {};
+    var _self = this;
+    var _setState = function(){};
+    var _getState = function(){ return {}; };
+    var init = null;
+    var changed = null;
+
+    this.dispatch = d3.dispatch('change', 'set');
+
+    this.dispatch.on('set', function(state){
+        _setState(state, true);
+    });
+
+    this.getter = function(fn){
+        _getState = fn;
+        return this;
+    };
+
+    this.setter = function(fn, callback) {
+        if (!callback) {
+            callback = function(){};
+        }
+        _setState = function(state, update){
+            fn(state);
+            if (update) {
+                callback();
+            }
+        };
+        return this;
+    };
+
+    this.init = function(state){
+        init = init || {};
+        nv.utils.deepExtend(init, state);
+    };
+
+    var _set = function(){
+        var settings = _getState();
+
+        if (JSON.stringify(settings) === JSON.stringify(state)) {
+            return false;
+        }
+
+        for (var key in settings) {
+            if (state[key] === undefined) {
+                state[key] = {};
+            }
+            state[key] = settings[key];
+            changed = true;
+        }
+        return true;
+    };
+
+    this.update = function(){
+        if (init) {
+            _setState(init, false);
+            init = null;
+        }
+        if (_set.call(this)) {
+            this.dispatch.change(state);
+        }
+    };
+
+};
+
+
+/*
+Snippet of code you can insert into each nv.models.* to give you the ability to
+do things like:
+chart.options({
+  showXAxis: true,
+  tooltips: true
+});
+
+To enable in the chart:
+chart.options = nv.utils.optionsFunc.bind(chart);
+*/
+nv.utils.optionsFunc = function(args) {
+    if (args) {
+        d3.map(args).forEach((function(key,value) {
+            if (nv.utils.isFunction(this[key])) {
+                this[key](value);
+            }
+        }).bind(this));
+    }
+    return this;
+};
+
+
+/*
+numTicks:  requested number of ticks
+data:  the chart data
+
+returns the number of ticks to actually use on X axis, based on chart data
+to avoid duplicate ticks with the same value
+*/
+nv.utils.calcTicksX = function(numTicks, data) {
+    // find max number of values from all data streams
+    var numValues = 1;
+    var i = 0;
+    for (i; i < data.length; i += 1) {
+        var stream_len = data[i] && data[i].values ? data[i].values.length : 0;
+        numValues = stream_len > numValues ? stream_len : numValues;
+    }
+    nv.log("Requested number of ticks: ", numTicks);
+    nv.log("Calculated max values to be: ", numValues);
+    // make sure we don't have more ticks than values to avoid duplicates
+    numTicks = numTicks > numValues ? numTicks = numValues - 1 : numTicks;
+    // make sure we have at least one tick
+    numTicks = numTicks < 1 ? 1 : numTicks;
+    // make sure it's an integer
+    numTicks = Math.floor(numTicks);
+    nv.log("Calculating tick count as: ", numTicks);
+    return numTicks;
+};
+
+
+/*
+returns number of ticks to actually use on Y axis, based on chart data
+*/
+nv.utils.calcTicksY = function(numTicks, data) {
+    // currently uses the same logic but we can adjust here if needed later
+    return nv.utils.calcTicksX(numTicks, data);
+};
+
+
+/*
+Add a particular option from an options object onto chart
+Options exposed on a chart are a getter/setter function that returns chart
+on set to mimic typical d3 option chaining, e.g. svg.option1('a').option2('b');
+
+option objects should be generated via Object.create() to provide
+the option of manipulating data via get/set functions.
+*/
+nv.utils.initOption = function(chart, name) {
+    // if it's a call option, just call it directly, otherwise do get/set
+    if (chart._calls && chart._calls[name]) {
+        chart[name] = chart._calls[name];
+    } else {
+        chart[name] = function (_) {
+            if (!arguments.length) return chart._options[name];
+            chart._overrides[name] = true;
+            chart._options[name] = _;
+            return chart;
+        };
+        // calling the option as _option will ignore if set by option already
+        // so nvd3 can set options internally but the stop if set manually
+        chart['_' + name] = function(_) {
+            if (!arguments.length) return chart._options[name];
+            if (!chart._overrides[name]) {
+                chart._options[name] = _;
+            }
+            return chart;
+        }
+    }
+};
+
+
+/*
+Add all options in an options object to the chart
+*/
+nv.utils.initOptions = function(chart) {
+    chart._overrides = chart._overrides || {};
+    var ops = Object.getOwnPropertyNames(chart._options || {});
+    var calls = Object.getOwnPropertyNames(chart._calls || {});
+    ops = ops.concat(calls);
+    for (var i in ops) {
+        nv.utils.initOption(chart, ops[i]);
+    }
+};
+
+
+/*
+Inherit options from a D3 object
+d3.rebind makes calling the function on target actually call it on source
+Also use _d3options so we can track what we inherit for documentation and chained inheritance
+*/
+nv.utils.inheritOptionsD3 = function(target, d3_source, oplist) {
+    target._d3options = oplist.concat(target._d3options || []);
+    oplist.unshift(d3_source);
+    oplist.unshift(target);
+    d3.rebind.apply(this, oplist);
+};
+
+
+/*
+Remove duplicates from an array
+*/
+nv.utils.arrayUnique = function(a) {
+    return a.sort().filter(function(item, pos) {
+        return !pos || item != a[pos - 1];
+    });
+};
+
+
+/*
+Keeps a list of custom symbols to draw from in addition to d3.svg.symbol
+Necessary since d3 doesn't let you extend its list -_-
+Add new symbols by doing nv.utils.symbols.set('name', function(size){...});
+*/
+nv.utils.symbolMap = d3.map();
+
+
+/*
+Replaces d3.svg.symbol so that we can look both there and our own map
+ */
+nv.utils.symbol = function() {
+    var type,
+        size = 64;
+    function symbol(d,i) {
+        var t = type.call(this,d,i);
+        var s = size.call(this,d,i);
+        if (d3.svg.symbolTypes.indexOf(t) !== -1) {
+            return d3.svg.symbol().type(t).size(s)();
+        } else {
+            return nv.utils.symbolMap.get(t)(s);
+        }
+    }
+    symbol.type = function(_) {
+        if (!arguments.length) return type;
+        type = d3.functor(_);
+        return symbol;
+    };
+    symbol.size = function(_) {
+        if (!arguments.length) return size;
+        size = d3.functor(_);
+        return symbol;
+    };
+    return symbol;
+};
+
+
+/*
+Inherit option getter/setter functions from source to target
+d3.rebind makes calling the function on target actually call it on source
+Also track via _inherited and _d3options so we can track what we inherit
+for documentation generation purposes and chained inheritance
+*/
+nv.utils.inheritOptions = function(target, source) {
+    // inherit all the things
+    var ops = Object.getOwnPropertyNames(source._options || {});
+    var calls = Object.getOwnPropertyNames(source._calls || {});
+    var inherited = source._inherited || [];
+    var d3ops = source._d3options || [];
+    var args = ops.concat(calls).concat(inherited).concat(d3ops);
+    args.unshift(source);
+    args.unshift(target);
+    d3.rebind.apply(this, args);
+    // pass along the lists to keep track of them, don't allow duplicates
+    target._inherited = nv.utils.arrayUnique(ops.concat(calls).concat(inherited).concat(ops).concat(target._inherited || []));
+    target._d3options = nv.utils.arrayUnique(d3ops.concat(target._d3options || []));
+};
+
+
+/*
+Runs common initialize code on the svg before the chart builds
+*/
+nv.utils.initSVG = function(svg) {
+    svg.classed({'nvd3-svg':true});
+};
+
+
+/*
+Sanitize and provide default for the container height.
+*/
+nv.utils.sanitizeHeight = function(height, container) {
+    return (height || parseInt(container.style('height'), 10) || 400);
+};
+
+
+/*
+Sanitize and provide default for the container width.
+*/
+nv.utils.sanitizeWidth = function(width, container) {
+    return (width || parseInt(container.style('width'), 10) || 960);
+};
+
+
+/*
+Calculate the available height for a chart.
+*/
+nv.utils.availableHeight = function(height, container, margin) {
+    return Math.max(0,nv.utils.sanitizeHeight(height, container) - margin.top - margin.bottom);
+};
+
+/*
+Calculate the available width for a chart.
+*/
+nv.utils.availableWidth = function(width, container, margin) {
+    return Math.max(0,nv.utils.sanitizeWidth(width, container) - margin.left - margin.right);
+};
+
+/*
+Clear any rendered chart components and display a chart's 'noData' message
+*/
+nv.utils.noData = function(chart, container) {
+    var opt = chart.options(),
+        margin = opt.margin(),
+        noData = opt.noData(),
+        data = (noData == null) ? ["No Data Available."] : [noData],
+        height = nv.utils.availableHeight(null, container, margin),
+        width = nv.utils.availableWidth(null, container, margin),
+        x = margin.left + width/2,
+        y = margin.top + height/2;
+
+    //Remove any previously created chart components
+    container.selectAll('g').remove();
+
+    var noDataText = container.selectAll('.nv-noData').data(data);
+
+    noDataText.enter().append('text')
+        .attr('class', 'nvd3 nv-noData')
+        .attr('dy', '-.7em')
+        .style('text-anchor', 'middle');
+
+    noDataText
+        .attr('x', x)
+        .attr('y', y)
+        .text(function(t){ return t; });
+};
+
+/*
+ Wrap long labels.
+ */
+nv.utils.wrapTicks = function (text, width) {
+    text.each(function() {
+        var text = d3.select(this),
+            words = text.text().split(/\s+/).reverse(),
+            word,
+            line = [],
+            lineNumber = 0,
+            lineHeight = 1.1,
+            y = text.attr("y"),
+            dy = parseFloat(text.attr("dy")),
+            tspan = text.text(null).append("tspan").attr("x", 0).attr("y", y).attr("dy", dy + "em");
+        while (word = words.pop()) {
+            line.push(word);
+            tspan.text(line.join(" "));
+            if (tspan.node().getComputedTextLength() > width) {
+                line.pop();
+                tspan.text(line.join(" "));
+                line = [word];
+                tspan = text.append("tspan").attr("x", 0).attr("y", y).attr("dy", ++lineNumber * lineHeight + dy + "em").text(word);
+            }
+        }
+    });
+};
+
+/*
+Check equality of 2 array
+*/
+nv.utils.arrayEquals = function (array1, array2) {
+    if (array1 === array2)
+        return true;
+
+    if (!array1 || !array2)
+        return false;
+
+    // compare lengths - can save a lot of time 
+    if (array1.length != array2.length)
+        return false;
+
+    for (var i = 0,
+        l = array1.length; i < l; i++) {
+        // Check if we have nested arrays
+        if (array1[i] instanceof Array && array2[i] instanceof Array) {
+            // recurse into the nested arrays
+            if (!nv.arrayEquals(array1[i], array2[i]))
+                return false;
+        } else if (array1[i] != array2[i]) {
+            // Warning - two different object instances will never be equal: {x:20} != {x:20}
+            return false;
+        }
+    }
+    return true;
+};nv.models.axis = function() {
+    "use strict";
+
+    //============================================================
+    // Public Variables with Default Settings
+    //------------------------------------------------------------
+
+    var axis = d3.svg.axis();
+    var scale = d3.scale.linear();
+
+    var margin = {top: 0, right: 0, bottom: 0, left: 0}
+        , width = 75 //only used for tickLabel currently
+        , height = 60 //only used for tickLabel currently
+        , axisLabelText = null
+        , showMaxMin = true //TODO: showMaxMin should be disabled on all ordinal scaled axes
+        , rotateLabels = 0
+        , rotateYLabel = true
+        , staggerLabels = false
+        , isOrdinal = false
+        , ticks = null
+        , axisLabelDistance = 0
+        , fontSize = undefined
+        , duration = 250
+        , dispatch = d3.dispatch('renderEnd')
+        ;
+    axis
+        .scale(scale)
+        .orient('bottom')
+        .tickFormat(function(d) { return d })
+    ;
+
+    //============================================================
+    // Private Variables
+    //------------------------------------------------------------
+
+    var scale0;
+    var renderWatch = nv.utils.renderWatch(dispatch, duration);
+
+    function chart(selection) {
+        renderWatch.reset();
+        selection.each(function(data) {
+            var container = d3.select(this);
+            nv.utils.initSVG(container);
+
+            // Setup containers and skeleton of chart
+            var wrap = container.selectAll('g.nv-wrap.nv-axis').data([data]);
+            var wrapEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-wrap nv-axis');
+            var gEnter = wrapEnter.append('g');
+            var g = wrap.select('g');
+
+            if (ticks !== null)
+                axis.ticks(ticks);
+            else if (axis.orient() == 'top' || axis.orient() == 'bottom')
+                axis.ticks(Math.abs(scale.range()[1] - scale.range()[0]) / 100);
+
+            //TODO: consider calculating width/height based on whether or not label is added, for reference in charts using this component
+            g.watchTransition(renderWatch, 'axis').call(axis);
+
+            scale0 = scale0 || axis.scale();
+
+            var fmt = axis.tickFormat();
+            if (fmt == null) {
+                fmt = scale0.tickFormat();
+            }
+
+            var axisLabel = g.selectAll('text.nv-axislabel')
+                .data([axisLabelText || null]);
+            axisLabel.exit().remove();
+
+            //only skip when fontSize is undefined so it can be cleared with a null or blank string
+            if (fontSize !== undefined) {
+                g.selectAll('g').select("text").style('font-size', fontSize);
+            }
+
+            var xLabelMargin;
+            var axisMaxMin;
+            var w;
+            switch (axis.orient()) {
+                case 'top':
+                    axisLabel.enter().append('text').attr('class', 'nv-axislabel');
+                  w = 0;
+                  if (scale.range().length === 1) {
+                    w = isOrdinal ? scale.range()[0] * 2 + scale.rangeBand() : 0;
+                  } else if (scale.range().length === 2) {
+                    w = isOrdinal ? scale.range()[0] + scale.range()[1] + scale.rangeBand() : scale.range()[1];
+                  } else if ( scale.range().length > 2){
+                    w = scale.range()[scale.range().length-1]+(scale.range()[1]-scale.range()[0]);
+                  };
+                    axisLabel
+                        .attr('text-anchor', 'middle')
+                        .attr('y', 0)
+                        .attr('x', w/2);
+                    if (showMaxMin) {
+                        axisMaxMin = wrap.selectAll('g.nv-axisMaxMin')
+                            .data(scale.domain());
+                        axisMaxMin.enter().append('g').attr('class',function(d,i){
+                                return ['nv-axisMaxMin','nv-axisMaxMin-x',(i == 0 ? 'nv-axisMin-x':'nv-axisMax-x')].join(' ')
+                        }).append('text');
+                        axisMaxMin.exit().remove();
+                        axisMaxMin
+                            .attr('transform', function(d,i) {
+                                return 'translate(' + nv.utils.NaNtoZero(scale(d)) + ',0)'
+                            })
+                            .select('text')
+                            .attr('dy', '-0.5em')
+                            .attr('y', -axis.tickPadding())
+                            .attr('text-anchor', 'middle')
+                            .text(function(d,i) {
+                                var v = fmt(d);
+                                return ('' + v).match('NaN') ? '' : v;
+                            });
+                        axisMaxMin.watchTransition(renderWatch, 'min-max top')
+                            .attr('transform', function(d,i) {
+                                return 'translate(' + nv.utils.NaNtoZero(scale.range()[i]) + ',0)'
+                            });
+                    }
+                    break;
+                case 'bottom':
+                    xLabelMargin = axisLabelDistance + 36;
+                    var maxTextWidth = 30;
+                    var textHeight = 0;
+                    var xTicks = g.selectAll('g').select("text");
+                    var rotateLabelsRule = '';
+                    if (rotateLabels%360) {
+                        //Reset transform on ticks so textHeight can be calculated correctly
+                        xTicks.attr('transform', ''); 
+                        //Calculate the longest xTick width
+                        xTicks.each(function(d,i){
+                            var box = this.getBoundingClientRect();
+                            var width = box.width;
+                            textHeight = box.height;
+                            if(width > maxTextWidth) maxTextWidth = width;
+                        });
+                        rotateLabelsRule = 'rotate(' + rotateLabels + ' 0,' + (textHeight/2 + axis.tickPadding()) + ')';
+                        //Convert to radians before calculating sin. Add 30 to margin for healthy padding.
+                        var sin = Math.abs(Math.sin(rotateLabels*Math.PI/180));
+                        xLabelMargin = (sin ? sin*maxTextWidth : maxTextWidth)+30;
+                        //Rotate all xTicks
+                        xTicks
+                            .attr('transform', rotateLabelsRule)
+                            .style('text-anchor', rotateLabels%360 > 0 ? 'start' : 'end');
+                    } else {
+                        if (staggerLabels) {
+                            xTicks
+                                .attr('transform', function(d,i) {
+                                    return 'translate(0,' + (i % 2 == 0 ? '0' : '12') + ')'
+                                });
+                        } else {
+                            xTicks.attr('transform', "translate(0,0)");
+                        }
+                    }
+                    axisLabel.enter().append('text').attr('class', 'nv-axislabel');
+                    w = 0;
+                    if (scale.range().length === 1) {
+                        w = isOrdinal ? scale.range()[0] * 2 + scale.rangeBand() : 0;
+                    } else if (scale.range().length === 2) {
+                        w = isOrdinal ? scale.range()[0] + scale.range()[1] + scale.rangeBand() : scale.range()[1];
+                    } else if ( scale.range().length > 2){
+                        w = scale.range()[scale.range().length-1]+(scale.range()[1]-scale.range()[0]);
+                    };
+                    axisLabel
+                        .attr('text-anchor', 'middle')
+                        .attr('y', xLabelMargin)
+                        .attr('x', w/2);
+                    if (showMaxMin) {
+                        //if (showMaxMin && !isOrdinal) {
+                        axisMaxMin = wrap.selectAll('g.nv-axisMaxMin')
+                            //.data(scale.domain())
+                            .data([scale.domain()[0], scale.domain()[scale.domain().length - 1]]);
+                        axisMaxMin.enter().append('g').attr('class',function(d,i){
+                                return ['nv-axisMaxMin','nv-axisMaxMin-x',(i == 0 ? 'nv-axisMin-x':'nv-axisMax-x')].join(' ')
+                        }).append('text');
+                        axisMaxMin.exit().remove();
+                        axisMaxMin
+                            .attr('transform', function(d,i) {
+                                return 'translate(' + nv.utils.NaNtoZero((scale(d) + (isOrdinal ? scale.rangeBand() / 2 : 0))) + ',0)'
+                            })
+                            .select('text')
+                            .attr('dy', '.71em')
+                            .attr('y', axis.tickPadding())
+                            .attr('transform', rotateLabelsRule)
+                            .style('text-anchor', rotateLabels ? (rotateLabels%360 > 0 ? 'start' : 'end') : 'middle')
+                            .text(function(d,i) {
+                                var v = fmt(d);
+                                return ('' + v).match('NaN') ? '' : v;
+                            });
+                        axisMaxMin.watchTransition(renderWatch, 'min-max bottom')
+                            .attr('transform', function(d,i) {
+                                return 'translate(' + nv.utils.NaNtoZero((scale(d) + (isOrdinal ? scale.rangeBand() / 2 : 0))) + ',0)'
+                            });
+                    }
+
+                    break;
+                case 'right':
+                    axisLabel.enter().append('text').attr('class', 'nv-axislabel');
+                    axisLabel
+                        .style('text-anchor', rotateYLabel ? 'middle' : 'begin')
+                        .attr('transform', rotateYLabel ? 'rotate(90)' : '')
+                        .attr('y', rotateYLabel ? (-Math.max(margin.right, width) + 12) : -10) //TODO: consider calculating this based on largest tick width... OR at least expose this on chart
+                        .attr('x', rotateYLabel ? (d3.max(scale.range()) / 2) : axis.tickPadding());
+                    if (showMaxMin) {
+                        axisMaxMin = wrap.selectAll('g.nv-axisMaxMin')
+                            .data(scale.domain());
+                       	axisMaxMin.enter().append('g').attr('class',function(d,i){
+                                return ['nv-axisMaxMin','nv-axisMaxMin-y',(i == 0 ? 'nv-axisMin-y':'nv-axisMax-y')].join(' ')
+                        }).append('text')
+                            .style('opacity', 0);
+                        axisMaxMin.exit().remove();
+                        axisMaxMin
+                            .attr('transform', function(d,i) {
+                                return 'translate(0,' + nv.utils.NaNtoZero(scale(d)) + ')'
+                            })
+                            .select('text')
+                            .attr('dy', '.32em')
+                            .attr('y', 0)
+                            .attr('x', axis.tickPadding())
+                            .style('text-anchor', 'start')
+                            .text(function(d, i) {
+                                var v = fmt(d);
+                                return ('' + v).match('NaN') ? '' : v;
+                            });
+                        axisMaxMin.watchTransition(renderWatch, 'min-max right')
+                            .attr('transform', function(d,i) {
+                                return 'translate(0,' + nv.utils.NaNtoZero(scale.range()[i]) + ')'
+                            })
+                            .select('text')
+                            .style('opacity', 1);
+                    }
+                    break;
+                case 'left':
+                    /*
+                     //For dynamically placing the label. Can be used with dynamically-sized chart axis margins
+                     var yTicks = g.selectAll('g').select("text");
+                     yTicks.each(function(d,i){
+                     var labelPadding = this.getBoundingClientRect().width + axis.tickPadding() + 16;
+                     if(labelPadding > width) width = labelPadding;
+                     });
+                     */
+                    axisLabel.enter().append('text').attr('class', 'nv-axislabel');
+                    axisLabel
+                        .style('text-anchor', rotateYLabel ? 'middle' : 'end')
+                        .attr('transform', rotateYLabel ? 'rotate(-90)' : '')
+                        .attr('y', rotateYLabel ? (-Math.max(margin.left, width) + 25 - (axisLabelDistance || 0)) : -10)
+                        .attr('x', rotateYLabel ? (-d3.max(scale.range()) / 2) : -axis.tickPadding());
+                    if (showMaxMin) {
+                        axisMaxMin = wrap.selectAll('g.nv-axisMaxMin')
+                            .data(scale.domain());
+                        axisMaxMin.enter().append('g').attr('class',function(d,i){
+                                return ['nv-axisMaxMin','nv-axisMaxMin-y',(i == 0 ? 'nv-axisMin-y':'nv-axisMax-y')].join(' ')
+                        }).append('text')
+                            .style('opacity', 0);
+                        axisMaxMin.exit().remove();
+                        axisMaxMin
+                            .attr('transform', function(d,i) {
+                                return 'translate(0,' + nv.utils.NaNtoZero(scale0(d)) + ')'
+                            })
+                            .select('text')
+                            .attr('dy', '.32em')
+                            .attr('y', 0)
+                            .attr('x', -axis.tickPadding())
+                            .attr('text-anchor', 'end')
+                            .text(function(d,i) {
+                                var v = fmt(d);
+                                return ('' + v).match('NaN') ? '' : v;
+                            });
+                        axisMaxMin.watchTransition(renderWatch, 'min-max right')
+                            .attr('transform', function(d,i) {
+                                return 'translate(0,' + nv.utils.NaNtoZero(scale.range()[i]) + ')'
+                            })
+                            .select('text')
+                            .style('opacity', 1);
+                    }
+                    break;
+            }
+            axisLabel.text(function(d) { return d });
+
+            if (showMaxMin && (axis.orient() === 'left' || axis.orient() === 'right')) {
+                //check if max and min overlap other values, if so, hide the values that overlap
+                g.selectAll('g') // the g's wrapping each tick
+                    .each(function(d,i) {
+                        d3.select(this).select('text').attr('opacity', 1);
+                        if (scale(d) < scale.range()[1] + 10 || scale(d) > scale.range()[0] - 10) { // 10 is assuming text height is 16... if d is 0, leave it!
+                            if (d > 1e-10 || d < -1e-10) // accounts for minor floating point errors... though could be problematic if the scale is EXTREMELY SMALL
+                                d3.select(this).attr('opacity', 0);
+
+                            d3.select(this).select('text').attr('opacity', 0); // Don't remove the ZERO line!!
+                        }
+                    });
+
+                //if Max and Min = 0 only show min, Issue #281
+                if (scale.domain()[0] == scale.domain()[1] && scale.domain()[0] == 0) {
+                    wrap.selectAll('g.nv-axisMaxMin').style('opacity', function (d, i) {
+                        return !i ? 1 : 0
+                    });
+                }
+            }
+
+            if (showMaxMin && (axis.orient() === 'top' || axis.orient() === 'bottom')) {
+                var maxMinRange = [];
+                wrap.selectAll('g.nv-axisMaxMin')
+                    .each(function(d,i) {
+                        try {
+                            if (i) // i== 1, max position
+                                maxMinRange.push(scale(d) - this.getBoundingClientRect().width - 4);  //assuming the max and min labels are as wide as the next tick (with an extra 4 pixels just in case)
+                            else // i==0, min position
+                                maxMinRange.push(scale(d) + this.getBoundingClientRect().width + 4)
+                        }catch (err) {
+                            if (i) // i== 1, max position
+                                maxMinRange.push(scale(d) - 4);  //assuming the max and min labels are as wide as the next tick (with an extra 4 pixels just in case)
+                            else // i==0, min position
+                                maxMinRange.push(scale(d) + 4);
+                        }
+                    });
+                // the g's wrapping each tick
+                g.selectAll('g').each(function(d, i) {
+                    if (scale(d) < maxMinRange[0] || scale(d) > maxMinRange[1]) {
+                        if (d > 1e-10 || d < -1e-10) // accounts for minor floating point errors... though could be problematic if the scale is EXTREMELY SMALL
+                            d3.select(this).remove();
+                        else
+                            d3.select(this).select('text').remove(); // Don't remove the ZERO line!!
+                    }
+                });
+            }
+
+            //Highlight zero tick line
+            g.selectAll('.tick')
+                .filter(function (d) {
+                    /*
+                    The filter needs to return only ticks at or near zero.
+                    Numbers like 0.00001 need to count as zero as well,
+                    and the arithmetic trick below solves that.
+                    */
+                    return !parseFloat(Math.round(d * 100000) / 1000000) && (d !== undefined)
+                }) 
+                .classed('zero', true);
+            
+            //store old scales for use in transitions on update
+            scale0 = scale.copy();
+
+        });
+
+        renderWatch.renderEnd('axis immediate');
+        return chart;
+    }
+
+    //============================================================
+    // Expose Public Variables
+    //------------------------------------------------------------
+
+    // expose chart's sub-components
+    chart.axis = axis;
+    chart.dispatch = dispatch;
+
+    chart.options = nv.utils.optionsFunc.bind(chart);
+    chart._options = Object.create({}, {
+        // simple options, just get/set the necessary values
+        axisLabelDistance: {get: function(){return axisLabelDistance;}, set: function(_){axisLabelDistance=_;}},
+        staggerLabels:     {get: function(){return staggerLabels;}, set: function(_){staggerLabels=_;}},
+        rotateLabels:      {get: function(){return rotateLabels;}, set: function(_){rotateLabels=_;}},
+        rotateYLabel:      {get: function(){return rotateYLabel;}, set: function(_){rotateYLabel=_;}},
+        showMaxMin:        {get: function(){return showMaxMin;}, set: function(_){showMaxMin=_;}},
+        axisLabel:         {get: function(){return axisLabelText;}, set: function(_){axisLabelText=_;}},
+        height:            {get: function(){return height;}, set: function(_){height=_;}},
+        ticks:             {get: function(){return ticks;}, set: function(_){ticks=_;}},
+        width:             {get: function(){return width;}, set: function(_){width=_;}},
+        fontSize:          {get: function(){return fontSize;}, set: function(_){fontSize=_;}},
+
+        // options that require extra logic in the setter
+        margin: {get: function(){return margin;}, set: function(_){
+            margin.top    = _.top !== undefined    ? _.top    : margin.top;
+            margin.right  = _.right !== undefined  ? _.right  : margin.right;
+            margin.bottom = _.bottom !== undefined ? _.bottom : margin.bottom;
+            margin.left   = _.left !== undefined   ? _.left   : margin.left;
+        }},
+        duration: {get: function(){return duration;}, set: function(_){
+            duration=_;
+            renderWatch.reset(duration);
+        }},
+        scale: {get: function(){return scale;}, set: function(_){
+            scale = _;
+            axis.scale(scale);
+            isOrdinal = typeof scale.rangeBands === 'function';
+            nv.utils.inheritOptionsD3(chart, scale, ['domain', 'range', 'rangeBand', 'rangeBands']);
+        }}
+    });
+
+    nv.utils.initOptions(chart);
+    nv.utils.inheritOptionsD3(chart, axis, ['orient', 'tickValues', 'tickSubdivide', 'tickSize', 'tickPadding', 'tickFormat']);
+    nv.utils.inheritOptionsD3(chart, scale, ['domain', 'range', 'rangeBand', 'rangeBands']);
+
+    return chart;
+};
+
+nv.models.scatter = function() {
+    "use strict";
+
+    //============================================================
+    // Public Variables with Default Settings
+    //------------------------------------------------------------
+
+    var margin       = {top: 0, right: 0, bottom: 0, left: 0}
+        , width        = null
+        , height       = null
+        , color        = nv.utils.defaultColor() // chooses color
+        , id           = Math.floor(Math.random() * 100000) //Create semi-unique ID incase user doesn't select one
+        , container    = null
+        , x            = d3.scale.linear()
+        , y            = d3.scale.linear()
+        , z            = d3.scale.linear() //linear because d3.svg.shape.size is treated as area
+        , getX         = function(d) { return d.x } // accessor to get the x value
+        , getY         = function(d) { return d.y } // accessor to get the y value
+        , getSize      = function(d) { return d.size || 1} // accessor to get the point size
+        , getShape     = function(d) { return d.shape || 'circle' } // accessor to get point shape
+        , forceX       = [] // List of numbers to Force into the X scale (ie. 0, or a max / min, etc.)
+        , forceY       = [] // List of numbers to Force into the Y scale
+        , forceSize    = [] // List of numbers to Force into the Size scale
+        , interactive  = true // If true, plots a voronoi overlay for advanced point intersection
+        , pointActive  = function(d) { return !d.notActive } // any points that return false will be filtered out
+        , padData      = false // If true, adds half a data points width to front and back, for lining up a line chart with a bar chart
+        , padDataOuter = .1 //outerPadding to imitate ordinal scale outer padding
+        , clipEdge     = false // if true, masks points within x and y scale
+        , clipVoronoi  = true // if true, masks each point with a circle... can turn off to slightly increase performance
+        , showVoronoi  = false // display the voronoi areas
+        , clipRadius   = function() { return 25 } // function to get the radius for voronoi point clips
+        , xDomain      = null // Override x domain (skips the calculation from data)
+        , yDomain      = null // Override y domain
+        , xRange       = null // Override x range
+        , yRange       = null // Override y range
+        , sizeDomain   = null // Override point size domain
+        , sizeRange    = null
+        , singlePoint  = false
+        , dispatch     = d3.dispatch('elementClick', 'elementDblClick', 'elementMouseover', 'elementMouseout', 'renderEnd')
+        , useVoronoi   = true
+        , duration     = 250
+        , interactiveUpdateDelay = 300
+        , showLabels    = false 
+        ;
+
+
+    //============================================================
+    // Private Variables
+    //------------------------------------------------------------
+
+    var x0, y0, z0 // used to store previous scales
+        , timeoutID
+        , needsUpdate = false // Flag for when the points are visually updating, but the interactive layer is behind, to disable tooltips
+        , renderWatch = nv.utils.renderWatch(dispatch, duration)
+        , _sizeRange_def = [16, 256]
+        , _caches
+        ;
+
+    function getCache(d) {
+        var cache, i;
+        cache = _caches = _caches || {};
+        i = d[0].series;
+        cache = cache[i] = cache[i] || {};
+        i = d[1];
+        cache = cache[i] = cache[i] || {};
+        return cache;
+    }
+
+    function getDiffs(d) {
+        var i, key,
+            point = d[0],
+            cache = getCache(d),
+            diffs = false;
+        for (i = 1; i < arguments.length; i ++) {
+            key = arguments[i];
+            if (cache[key] !== point[key] || !cache.hasOwnProperty(key)) {
+                cache[key] = point[key];
+                diffs = true;
+            }
+        }
+        return diffs;
+    }
+
+    function chart(selection) {
+        renderWatch.reset();
+        selection.each(function(data) {
+            container = d3.select(this);
+            var availableWidth = nv.utils.availableWidth(width, container, margin),
+                availableHeight = nv.utils.availableHeight(height, container, margin);
+
+            nv.utils.initSVG(container);
+
+            //add series index to each data point for reference
+            data.forEach(function(series, i) {
+                series.values.forEach(function(point) {
+                    point.series = i;
+                });
+            });
+
+            // Setup Scales
+            var logScale = chart.yScale().name === d3.scale.log().name ? true : false; 
+            // remap and flatten the data for use in calculating the scales' domains
+            var seriesData = (xDomain && yDomain && sizeDomain) ? [] : // if we know xDomain and yDomain and sizeDomain, no need to calculate.... if Size is constant remember to set sizeDomain to speed up performance
+                d3.merge(
+                    data.map(function(d) {
+                        return d.values.map(function(d,i) {
+                            return { x: getX(d,i), y: getY(d,i), size: getSize(d,i) }
+                        })
+                    })
+                );
+
+            x   .domain(xDomain || d3.extent(seriesData.map(function(d) { return d.x; }).concat(forceX)))
+
+            if (padData && data[0])
+                x.range(xRange || [(availableWidth * padDataOuter +  availableWidth) / (2 *data[0].values.length), availableWidth - availableWidth * (1 + padDataOuter) / (2 * data[0].values.length)  ]);
+            //x.range([availableWidth * .5 / data[0].values.length, availableWidth * (data[0].values.length - .5)  / data[0].values.length ]);
+            else
+                x.range(xRange || [0, availableWidth]);
+
+             if (logScale) {
+                    var min = d3.min(seriesData.map(function(d) { if (d.y !== 0) return d.y; }));
+                    y.clamp(true)
+                        .domain(yDomain || d3.extent(seriesData.map(function(d) {
+                            if (d.y !== 0) return d.y;
+                            else return min * 0.1;
+                        }).concat(forceY)))
+                        .range(yRange || [availableHeight, 0]);
+                } else {
+                        y.domain(yDomain || d3.extent(seriesData.map(function (d) { return d.y;}).concat(forceY)))
+                        .range(yRange || [availableHeight, 0]);
+                }
+
+            z   .domain(sizeDomain || d3.extent(seriesData.map(function(d) { return d.size }).concat(forceSize)))
+                .range(sizeRange || _sizeRange_def);
+
+            // If scale's domain don't have a range, slightly adjust to make one... so a chart can show a single data point
+            singlePoint = x.domain()[0] === x.domain()[1] || y.domain()[0] === y.domain()[1];
+
+            if (x.domain()[0] === x.domain()[1])
+                x.domain()[0] ?
+                    x.domain([x.domain()[0] - x.domain()[0] * 0.01, x.domain()[1] + x.domain()[1] * 0.01])
+                    : x.domain([-1,1]);
+
+            if (y.domain()[0] === y.domain()[1])
+                y.domain()[0] ?
+                    y.domain([y.domain()[0] - y.domain()[0] * 0.01, y.domain()[1] + y.domain()[1] * 0.01])
+                    : y.domain([-1,1]);
+
+            if ( isNaN(x.domain()[0])) {
+                x.domain([-1,1]);
+            }
+
+            if ( isNaN(y.domain()[0])) {
+                y.domain([-1,1]);
+            }
+
+            x0 = x0 || x;
+            y0 = y0 || y;
+            z0 = z0 || z;
+
+            var scaleDiff = x(1) !== x0(1) || y(1) !== y0(1) || z(1) !== z0(1);
+
+            // Setup containers and skeleton of chart
+            var wrap = container.selectAll('g.nv-wrap.nv-scatter').data([data]);
+            var wrapEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-wrap nv-scatter nv-chart-' + id);
+            var defsEnter = wrapEnter.append('defs');
+            var gEnter = wrapEnter.append('g');
+            var g = wrap.select('g');
+
+            wrap.classed('nv-single-point', singlePoint);
+            gEnter.append('g').attr('class', 'nv-groups');
+            gEnter.append('g').attr('class', 'nv-point-paths');
+            wrapEnter.append('g').attr('class', 'nv-point-clips');
+
+            wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
+
+            defsEnter.append('clipPath')
+                .attr('id', 'nv-edge-clip-' + id)
+                .append('rect');
+
+            wrap.select('#nv-edge-clip-' + id + ' rect')
+                .attr('width', availableWidth)
+                .attr('height', (availableHeight > 0) ? availableHeight : 0);
+
+            g.attr('clip-path', clipEdge ? 'url(#nv-edge-clip-' + id + ')' : '');
+
+            function updateInteractiveLayer() {
+                // Always clear needs-update flag regardless of whether or not
+                // we will actually do anything (avoids needless invocations).
+                needsUpdate = false;
+
+                if (!interactive) return false;
+
+                // inject series and point index for reference into voronoi
+                if (useVoronoi === true) {
+                    var vertices = d3.merge(data.map(function(group, groupIndex) {
+                            return group.values
+                                .map(function(point, pointIndex) {
+                                    // *Adding noise to make duplicates very unlikely
+                                    // *Injecting series and point index for reference
+                                    /* *Adding a 'jitter' to the points, because there's an issue in d3.geom.voronoi.
+                                     */
+                                    var pX = getX(point,pointIndex);
+                                    var pY = getY(point,pointIndex);
+
+                                    return [nv.utils.NaNtoZero(x(pX))+ Math.random() * 1e-4,
+                                            nv.utils.NaNtoZero(y(pY))+ Math.random() * 1e-4,
+                                        groupIndex,
+                                        pointIndex, point]; //temp hack to add noise until I think of a better way so there are no duplicates
+                                })
+                                .filter(function(pointArray, pointIndex) {
+                                    return pointActive(pointArray[4], pointIndex); // Issue #237.. move filter to after map, so pointIndex is correct!
+                                })
+                        })
+                    );
+
+                    if (vertices.length == 0) return false;  // No active points, we're done
+                    if (vertices.length < 3) {
+                        // Issue #283 - Adding 2 dummy points to the voronoi b/c voronoi requires min 3 points to work
+                        vertices.push([x.range()[0] - 20, y.range()[0] - 20, null, null]);
+                        vertices.push([x.range()[1] + 20, y.range()[1] + 20, null, null]);
+                        vertices.push([x.range()[0] - 20, y.range()[0] + 20, null, null]);
+                        vertices.push([x.range()[1] + 20, y.range()[1] - 20, null, null]);
+                    }
+
+                    // keep voronoi sections from going more than 10 outside of graph
+                    // to avoid overlap with other things like legend etc
+                    var bounds = d3.geom.polygon([
+                        [-10,-10],
+                        [-10,height + 10],
+                        [width + 10,height + 10],
+                        [width + 10,-10]
+                    ]);
+
+                    var voronoi = d3.geom.voronoi(vertices).map(function(d, i) {
+                        return {
+                            'data': bounds.clip(d),
+                            'series': vertices[i][2],
+                            'point': vertices[i][3]
+                        }
+                    });
+
+                    // nuke all voronoi paths on reload and recreate them
+                    wrap.select('.nv-point-paths').selectAll('path').remove();
+                    var pointPaths = wrap.select('.nv-point-paths').selectAll('path').data(voronoi);
+                    var vPointPaths = pointPaths
+                        .enter().append("svg:path")
+                        .attr("d", function(d) {
+                            if (!d || !d.data || d.data.length === 0)
+                                return 'M 0 0';
+                            else
+                                return "M" + d.data.join(",") + "Z";
+                        })
+                        .attr("id", function(d,i) {
+                            return "nv-path-"+i; })
+                        .attr("clip-path", function(d,i) { return "url(#nv-clip-"+id+"-"+i+")"; })
+                        ;
+
+                    // good for debugging point hover issues
+                    if (showVoronoi) {
+                        vPointPaths.style("fill", d3.rgb(230, 230, 230))
+                            .style('fill-opacity', 0.4)
+                            .style('stroke-opacity', 1)
+                            .style("stroke", d3.rgb(200,200,200));
+                    }
+
+                    if (clipVoronoi) {
+                        // voronoi sections are already set to clip,
+                        // just create the circles with the IDs they expect
+                        wrap.select('.nv-point-clips').selectAll('*').remove(); // must do * since it has sub-dom
+                        var pointClips = wrap.select('.nv-point-clips').selectAll('clipPath').data(vertices);
+                        var vPointClips = pointClips
+                            .enter().append("svg:clipPath")
+                            .attr("id", function(d, i) { return "nv-clip-"+id+"-"+i;})
+                            .append("svg:circle")
+                            .attr('cx', function(d) { return d[0]; })
+                            .attr('cy', function(d) { return d[1]; })
+                            .attr('r', clipRadius);
+                    }
+
+                    var mouseEventCallback = function(d, mDispatch) {
+                        if (needsUpdate) return 0;
+                        var series = data[d.series];
+                        if (series === undefined) return;
+                        var point  = series.values[d.point];
+                        point['color'] = color(series, d.series);
+
+                        // standardize attributes for tooltip.
+                        point['x'] = getX(point);
+                        point['y'] = getY(point);
+
+                        // can't just get box of event node since it's actually a voronoi polygon
+                        var box = container.node().getBoundingClientRect();
+                        var scrollTop  = window.pageYOffset || document.documentElement.scrollTop;
+                        var scrollLeft = window.pageXOffset || document.documentElement.scrollLeft;
+
+                        var pos = {
+                            left: x(getX(point, d.point)) + box.left + scrollLeft + margin.left + 10,
+                            top: y(getY(point, d.point)) + box.top + scrollTop + margin.top + 10
+                        };
+
+                        mDispatch({
+                            point: point,
+                            series: series,
+                            pos: pos,
+                            relativePos: [x(getX(point, d.point)) + margin.left, y(getY(point, d.point)) + margin.top],
+                            seriesIndex: d.series,
+                            pointIndex: d.point
+                        });
+                    };
+
+                    pointPaths
+                        .on('click', function(d) {
+                            mouseEventCallback(d, dispatch.elementClick);
+                        })
+                        .on('dblclick', function(d) {
+                            mouseEventCallback(d, dispatch.elementDblClick);
+                        })
+                        .on('mouseover', function(d) {
+                            mouseEventCallback(d, dispatch.elementMouseover);
+                        })
+                        .on('mouseout', function(d, i) {
+                            mouseEventCallback(d, dispatch.elementMouseout);
+                        });
+
+                } else {
+                    // add event handlers to points instead voronoi paths
+                    wrap.select('.nv-groups').selectAll('.nv-group')
+                        .selectAll('.nv-point')
+                        //.data(dataWithPoints)
+                        //.style('pointer-events', 'auto') // recativate events, disabled by css
+                        .on('click', function(d,i) {
+                            //nv.log('test', d, i);
+                            if (needsUpdate || !data[d.series]) return 0; //check if this is a dummy point
+                            var series = data[d.series],
+                                point  = series.values[i];
+
+                            dispatch.elementClick({
+                                point: point,
+                                series: series,
+                                pos: [x(getX(point, i)) + margin.left, y(getY(point, i)) + margin.top], //TODO: make this pos base on the page
+                                relativePos: [x(getX(point, i)) + margin.left, y(getY(point, i)) + margin.top],
+                                seriesIndex: d.series,
+                                pointIndex: i
+                            });
+                        })
+                        .on('dblclick', function(d,i) {
+                            if (needsUpdate || !data[d.series]) return 0; //check if this is a dummy point
+                            var series = data[d.series],
+                                point  = series.values[i];
+
+                            dispatch.elementDblClick({
+                                point: point,
+                                series: series,
+                                pos: [x(getX(point, i)) + margin.left, y(getY(point, i)) + margin.top],//TODO: make this pos base on the page
+                                relativePos: [x(getX(point, i)) + margin.left, y(getY(point, i)) + margin.top],
+                                seriesIndex: d.series,
+                                pointIndex: i
+                            });
+                        })
+                        .on('mouseover', function(d,i) {
+                            if (needsUpdate || !data[d.series]) return 0; //check if this is a dummy point
+                            var series = data[d.series],
+                                point  = series.values[i];
+
+                            dispatch.elementMouseover({
+                                point: point,
+                                series: series,
+                                pos: [x(getX(point, i)) + margin.left, y(getY(point, i)) + margin.top],//TODO: make this pos base on the page
+                                relativePos: [x(getX(point, i)) + margin.left, y(getY(point, i)) + margin.top],
+                                seriesIndex: d.series,
+                                pointIndex: i,
+                                color: color(d, i)
+                            });
+                        })
+                        .on('mouseout', function(d,i) {
+                            if (needsUpdate || !data[d.series]) return 0; //check if this is a dummy point
+                            var series = data[d.series],
+                                point  = series.values[i];
+
+                            dispatch.elementMouseout({
+                                point: point,
+                                series: series,
+                                pos: [x(getX(point, i)) + margin.left, y(getY(point, i)) + margin.top],//TODO: make this pos base on the page
+                                relativePos: [x(getX(point, i)) + margin.left, y(getY(point, i)) + margin.top],
+                                seriesIndex: d.series,
+                                pointIndex: i,
+                                color: color(d, i)
+                            });
+                        });
+                }
+            }
+
+            needsUpdate = true;
+            var groups = wrap.select('.nv-groups').selectAll('.nv-group')
+                .data(function(d) { return d }, function(d) { return d.key });
+            groups.enter().append('g')
+                .style('stroke-opacity', 1e-6)
+                .style('fill-opacity', 1e-6);
+            groups.exit()
+                .remove();
+            groups
+                .attr('class', function(d,i) {
+                    return (d.classed || '') + ' nv-group nv-series-' + i;
+                })
+                .classed('nv-noninteractive', !interactive)
+                .classed('hover', function(d) { return d.hover });
+            groups.watchTransition(renderWatch, 'scatter: groups')
+                .style('fill', function(d,i) { return color(d, i) })
+                .style('stroke', function(d,i) { return color(d, i) })
+                .style('stroke-opacity', 1)
+                .style('fill-opacity', .5);
+
+            // create the points, maintaining their IDs from the original data set
+            var points = groups.selectAll('path.nv-point')
+                .data(function(d) {
+                    return d.values.map(
+                        function (point, pointIndex) {
+                            return [point, pointIndex]
+                        }).filter(
+                            function(pointArray, pointIndex) {
+                                return pointActive(pointArray[0], pointIndex)
+                            })
+                    });
+            points.enter().append('path')
+                .attr('class', function (d) {
+                    return 'nv-point nv-point-' + d[1];
+                })
+                .style('fill', function (d) { return d.color })
+                .style('stroke', function (d) { return d.color })
+                .attr('transform', function(d) {
+                    return 'translate(' + nv.utils.NaNtoZero(x0(getX(d[0],d[1]))) + ',' + nv.utils.NaNtoZero(y0(getY(d[0],d[1]))) + ')'
+                })
+                .attr('d',
+                    nv.utils.symbol()
+                    .type(function(d) { return getShape(d[0]); })
+                    .size(function(d) { return z(getSize(d[0],d[1])) })
+            );
+            points.exit().remove();
+            groups.exit().selectAll('path.nv-point')
+                .watchTransition(renderWatch, 'scatter exit')
+                .attr('transform', function(d) {
+                    return 'translate(' + nv.utils.NaNtoZero(x(getX(d[0],d[1]))) + ',' + nv.utils.NaNtoZero(y(getY(d[0],d[1]))) + ')'
+                })
+                .remove();
+            points.filter(function (d) { return scaleDiff || getDiffs(d, 'x', 'y'); })
+                .watchTransition(renderWatch, 'scatter points')
+                .attr('transform', function(d) {
+                    //nv.log(d, getX(d[0],d[1]), x(getX(d[0],d[1])));
+                    return 'translate(' + nv.utils.NaNtoZero(x(getX(d[0],d[1]))) + ',' + nv.utils.NaNtoZero(y(getY(d[0],d[1]))) + ')'
+                });
+            points.filter(function (d) { return scaleDiff || getDiffs(d, 'shape', 'size'); })
+                .watchTransition(renderWatch, 'scatter points')
+                .attr('d',
+                    nv.utils.symbol()
+                    .type(function(d) { return getShape(d[0]); })
+                    .size(function(d) { return z(getSize(d[0],d[1])) })
+            );
+            
+            // add label a label to scatter chart 
+            if(showLabels)
+            {      
+                var titles =  groups.selectAll('.nv-label')
+                    .data(function(d) {
+                        return d.values.map(
+                            function (point, pointIndex) {
+                                return [point, pointIndex]
+                            }).filter(
+                                function(pointArray, pointIndex) {
+                                    return pointActive(pointArray[0], pointIndex)
+                                })
+                        });
+
+                titles.enter().append('text')
+                    .style('fill', function (d,i) { 
+                        return d.color })
+                    .style('stroke-opacity', 0)
+                    .style('fill-opacity', 1)
+                    .attr('transform', function(d) {
+                        var dx = nv.utils.NaNtoZero(x0(getX(d[0],d[1]))) + Math.sqrt(z(getSize(d[0],d[1]))/Math.PI) + 2;
+                        return 'translate(' + dx + ',' + nv.utils.NaNtoZero(y0(getY(d[0],d[1]))) + ')';
+                    })
+                    .text(function(d,i){
+                        return d[0].label;});
+
+                titles.exit().remove();
+                groups.exit().selectAll('path.nv-label')
+                    .watchTransition(renderWatch, 'scatter exit')
+                    .attr('transform', function(d) {
+                        var dx = nv.utils.NaNtoZero(x(getX(d[0],d[1])))+ Math.sqrt(z(getSize(d[0],d[1]))/Math.PI)+2;
+                        return 'translate(' + dx + ',' + nv.utils.NaNtoZero(y(getY(d[0],d[1]))) + ')';
+                    })
+                    .remove();
+               titles.each(function(d) {
+                  d3.select(this)
+                    .classed('nv-label', true)
+                    .classed('nv-label-' + d[1], false)
+                    .classed('hover',false);
+                });
+                titles.watchTransition(renderWatch, 'scatter labels')
+                    .attr('transform', function(d) {
+                        var dx = nv.utils.NaNtoZero(x(getX(d[0],d[1])))+ Math.sqrt(z(getSize(d[0],d[1]))/Math.PI)+2;
+                        return 'translate(' + dx + ',' + nv.utils.NaNtoZero(y(getY(d[0],d[1]))) + ')'
+                    });
+            }
+
+            // Delay updating the invisible interactive layer for smoother animation
+            if( interactiveUpdateDelay )
+            {
+                clearTimeout(timeoutID); // stop repeat calls to updateInteractiveLayer
+                timeoutID = setTimeout(updateInteractiveLayer, interactiveUpdateDelay );
+            }
+            else
+            {
+                updateInteractiveLayer();
+            }
+
+            //store old scales for use in transitions on update
+            x0 = x.copy();
+            y0 = y.copy();
+            z0 = z.copy();
+
+        });
+        renderWatch.renderEnd('scatter immediate');
+        return chart;
+    }
+
+    //============================================================
+    // Expose Public Variables
+    //------------------------------------------------------------
+
+    chart.dispatch = dispatch;
+    chart.options = nv.utils.optionsFunc.bind(chart);
+
+    // utility function calls provided by this chart
+    chart._calls = new function() {
+        this.clearHighlights = function () {
+            nv.dom.write(function() {
+                container.selectAll(".nv-point.hover").classed("hover", false);
+            });
+            return null;
+        };
+        this.highlightPoint = function (seriesIndex, pointIndex, isHoverOver) {
+            nv.dom.write(function() {
+                container.select('.nv-groups')
+                  .selectAll(".nv-series-" + seriesIndex)
+                  .selectAll(".nv-point-" + pointIndex)
+                  .classed("hover", isHoverOver);
+            });
+        };
+    };
+
+    // trigger calls from events too
+    dispatch.on('elementMouseover.point', function(d) {
+        if (interactive) chart._calls.highlightPoint(d.seriesIndex,d.pointIndex,true);
+    });
+
+    dispatch.on('elementMouseout.point', function(d) {
+        if (interactive) chart._calls.highlightPoint(d.seriesIndex,d.pointIndex,false);
+    });
+
+    chart._options = Object.create({}, {
+        // simple options, just get/set the necessary values
+        width:        {get: function(){return width;}, set: function(_){width=_;}},
+        height:       {get: function(){return height;}, set: function(_){height=_;}},
+        xScale:       {get: function(){return x;}, set: function(_){x=_;}},
+        yScale:       {get: function(){return y;}, set: function(_){y=_;}},
+        pointScale:   {get: function(){return z;}, set: function(_){z=_;}},
+        xDomain:      {get: function(){return xDomain;}, set: function(_){xDomain=_;}},
+        yDomain:      {get: function(){return yDomain;}, set: function(_){yDomain=_;}},
+        pointDomain:  {get: function(){return sizeDomain;}, set: function(_){sizeDomain=_;}},
+        xRange:       {get: function(){return xRange;}, set: function(_){xRange=_;}},
+        yRange:       {get: function(){return yRange;}, set: function(_){yRange=_;}},
+        pointRange:   {get: function(){return sizeRange;}, set: function(_){sizeRange=_;}},
+        forceX:       {get: function(){return forceX;}, set: function(_){forceX=_;}},
+        forceY:       {get: function(){return forceY;}, set: function(_){forceY=_;}},
+        forcePoint:   {get: function(){return forceSize;}, set: function(_){forceSize=_;}},
+        interactive:  {get: function(){return interactive;}, set: function(_){interactive=_;}},
+        pointActive:  {get: function(){return pointActive;}, set: function(_){pointActive=_;}},
+        padDataOuter: {get: function(){return padDataOuter;}, set: function(_){padDataOuter=_;}},
+        padData:      {get: function(){return padData;}, set: function(_){padData=_;}},
+        clipEdge:     {get: function(){return clipEdge;}, set: function(_){clipEdge=_;}},
+        clipVoronoi:  {get: function(){return clipVoronoi;}, set: function(_){clipVoronoi=_;}},
+        clipRadius:   {get: function(){return clipRadius;}, set: function(_){clipRadius=_;}},
+        showVoronoi:   {get: function(){return showVoronoi;}, set: function(_){showVoronoi=_;}},
+        id:           {get: function(){return id;}, set: function(_){id=_;}},
+        interactiveUpdateDelay: {get:function(){return interactiveUpdateDelay;}, set: function(_){interactiveUpdateDelay=_;}},
+        showLabels: {get: function(){return showLabels;}, set: function(_){ showLabels = _;}},
+
+        // simple functor options
+        x:     {get: function(){return getX;}, set: function(_){getX = d3.functor(_);}},
+        y:     {get: function(){return getY;}, set: function(_){getY = d3.functor(_);}},
+        pointSize: {get: function(){return getSize;}, set: function(_){getSize = d3.functor(_);}},
+        pointShape: {get: function(){return getShape;}, set: function(_){getShape = d3.functor(_);}},
+
+        // options that require extra logic in the setter
+        margin: {get: function(){return margin;}, set: function(_){
+            margin.top    = _.top    !== undefined ? _.top    : margin.top;
+            margin.right  = _.right  !== undefined ? _.right  : margin.right;
+            margin.bottom = _.bottom !== undefined ? _.bottom : margin.bottom;
+            margin.left   = _.left   !== undefined ? _.left   : margin.left;
+        }},
+        duration: {get: function(){return duration;}, set: function(_){
+            duration = _;
+            renderWatch.reset(duration);
+        }},
+        color: {get: function(){return color;}, set: function(_){
+            color = nv.utils.getColor(_);
+        }},
+        useVoronoi: {get: function(){return useVoronoi;}, set: function(_){
+            useVoronoi = _;
+            if (useVoronoi === false) {
+                clipVoronoi = false;
+            }
+        }}
+    });
+
+    nv.utils.initOptions(chart);
+    return chart;
+};
+
+nv.models.multiBar = function() {
+    "use strict";
+
+    //============================================================
+    // Public Variables with Default Settings
+    //------------------------------------------------------------
+
+    var margin = {top: 0, right: 0, bottom: 0, left: 0}
+        , width = 960
+        , height = 500
+        , x = d3.scale.ordinal()
+        , y = d3.scale.linear()
+        , id = Math.floor(Math.random() * 10000) //Create semi-unique ID in case user doesn't select one
+        , container = null
+        , getX = function(d) { return d.x }
+        , getY = function(d) { return d.y }
+        , forceY = [0] // 0 is forced by default.. this makes sense for the majority of bar graphs... user can always do chart.forceY([]) to remove
+        , clipEdge = true
+        , stacked = false
+        , stackOffset = 'zero' // options include 'silhouette', 'wiggle', 'expand', 'zero', or a custom function
+        , color = nv.utils.defaultColor()
+        , hideable = false
+        , barColor = null // adding the ability to set the color for each rather than the whole group
+        , disabled // used in conjunction with barColor to communicate from multiBarHorizontalChart what series are disabled
+        , duration = 500
+        , xDomain
+        , yDomain
+        , xRange
+        , yRange
+        , groupSpacing = 0.1
+        , dispatch = d3.dispatch('chartClick', 'elementClick', 'elementDblClick', 'elementMouseover', 'elementMouseout', 'elementMousemove', 'renderEnd')
+        ;
+
+    //============================================================
+    // Private Variables
+    //------------------------------------------------------------
+
+    var x0, y0 //used to store previous scales
+        , renderWatch = nv.utils.renderWatch(dispatch, duration)
+        ;
+
+    var last_datalength = 0;
+
+    function chart(selection) {
+        renderWatch.reset();
+        selection.each(function(data) {
+            var availableWidth = width - margin.left - margin.right,
+                availableHeight = height - margin.top - margin.bottom;
+
+            container = d3.select(this);
+            nv.utils.initSVG(container);
+            var nonStackableCount = 0;
+            // This function defines the requirements for render complete
+            var endFn = function(d, i) {
+                if (d.series === data.length - 1 && i === data[0].values.length - 1)
+                    return true;
+                return false;
+            };
+
+            if(hideable && data.length) hideable = [{
+                values: data[0].values.map(function(d) {
+                        return {
+                            x: d.x,
+                            y: 0,
+                            series: d.series,
+                            size: 0.01
+                        };}
+                )}];
+
+            if (stacked) {
+                var parsed = d3.layout.stack()
+                    .offset(stackOffset)
+                    .values(function(d){ return d.values })
+                    .y(getY)
+                (!data.length && hideable ? hideable : data);
+
+                parsed.forEach(function(series, i){
+                    // if series is non-stackable, use un-parsed data
+                    if (series.nonStackable) {
+                        data[i].nonStackableSeries = nonStackableCount++;
+                        parsed[i] = data[i];
+                    } else {
+                        // don't stack this seires on top of the nonStackable seriees
+                        if (i > 0 && parsed[i - 1].nonStackable){
+                            parsed[i].values.map(function(d,j){
+                                d.y0 -= parsed[i - 1].values[j].y;
+                                d.y1 = d.y0 + d.y;
+                            });
+                        }
+                    }
+                });
+                data = parsed;
+            }
+            //add series index and key to each data point for reference
+            data.forEach(function(series, i) {
+                series.values.forEach(function(point) {
+                    point.series = i;
+                    point.key = series.key;
+                });
+            });
+
+            // HACK for negative value stacking
+            if (stacked) {
+                data[0].values.map(function(d,i) {
+                    var posBase = 0, negBase = 0;
+                    data.map(function(d, idx) {
+                        if (!data[idx].nonStackable) {
+                            var f = d.values[i]
+                            f.size = Math.abs(f.y);
+                            if (f.y<0)  {
+                                f.y1 = negBase;
+                                negBase = negBase - f.size;
+                            } else
+                            {
+                                f.y1 = f.size + posBase;
+                                posBase = posBase + f.size;
+                            }
+                        }
+
+                    });
+                });
+            }
+            // Setup Scales
+            // remap and flatten the data for use in calculating the scales' domains
+            var seriesData = (xDomain && yDomain) ? [] : // if we know xDomain and yDomain, no need to calculate
+                data.map(function(d, idx) {
+                    return d.values.map(function(d,i) {
+                        return { x: getX(d,i), y: getY(d,i), y0: d.y0, y1: d.y1, idx:idx }
+                    })
+                });
+
+            x.domain(xDomain || d3.merge(seriesData).map(function(d) { return d.x }))
+                .rangeBands(xRange || [0, availableWidth], groupSpacing);
+
+            y.domain(yDomain || d3.extent(d3.merge(seriesData).map(function(d) {
+                var domain = d.y;
+                // increase the domain range if this series is stackable
+                if (stacked && !data[d.idx].nonStackable) {
+                    if (d.y > 0){
+                        domain = d.y1
+                    } else {
+                        domain = d.y1 + d.y
+                    }
+                }
+                return domain;
+            }).concat(forceY)))
+            .range(yRange || [availableHeight, 0]);
+
+            // If scale's domain don't have a range, slightly adjust to make one... so a chart can show a single data point
+            if (x.domain()[0] === x.domain()[1])
+                x.domain()[0] ?
+                    x.domain([x.domain()[0] - x.domain()[0] * 0.01, x.domain()[1] + x.domain()[1] * 0.01])
+                    : x.domain([-1,1]);
+
+            if (y.domain()[0] === y.domain()[1])
+                y.domain()[0] ?
+                    y.domain([y.domain()[0] + y.domain()[0] * 0.01, y.domain()[1] - y.domain()[1] * 0.01])
+                    : y.domain([-1,1]);
+
+            x0 = x0 || x;
+            y0 = y0 || y;
+
+            // Setup containers and skeleton of chart
+            var wrap = container.selectAll('g.nv-wrap.nv-multibar').data([data]);
+            var wrapEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-wrap nv-multibar');
+            var defsEnter = wrapEnter.append('defs');
+            var gEnter = wrapEnter.append('g');
+            var g = wrap.select('g');
+
+            gEnter.append('g').attr('class', 'nv-groups');
+            wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
+
+            defsEnter.append('clipPath')
+                .attr('id', 'nv-edge-clip-' + id)
+                .append('rect');
+            wrap.select('#nv-edge-clip-' + id + ' rect')
+                .attr('width', availableWidth)
+                .attr('height', availableHeight);
+
+            g.attr('clip-path', clipEdge ? 'url(#nv-edge-clip-' + id + ')' : '');
+
+            var groups = wrap.select('.nv-groups').selectAll('.nv-group')
+                .data(function(d) { return d }, function(d,i) { return i });
+            groups.enter().append('g')
+                .style('stroke-opacity', 1e-6)
+                .style('fill-opacity', 1e-6);
+
+            var exitTransition = renderWatch
+                .transition(groups.exit().selectAll('rect.nv-bar'), 'multibarExit', Math.min(100, duration))
+                .attr('y', function(d, i, j) {
+                    var yVal = y0(0) || 0;
+                    if (stacked) {
+                        if (data[d.series] && !data[d.series].nonStackable) {
+                            yVal = y0(d.y0);
+                        }
+                    }
+                    return yVal;
+                })
+                .attr('height', 0)
+                .remove();
+            if (exitTransition.delay)
+                exitTransition.delay(function(d,i) {
+                    var delay = i * (duration / (last_datalength + 1)) - i;
+                    return delay;
+                });
+            groups
+                .attr('class', function(d,i) { return 'nv-group nv-series-' + i })
+                .classed('hover', function(d) { return d.hover })
+                .style('fill', function(d,i){ return color(d, i) })
+                .style('stroke', function(d,i){ return color(d, i) });
+            groups
+                .style('stroke-opacity', 1)
+                .style('fill-opacity', 0.75);
+
+            var bars = groups.selectAll('rect.nv-bar')
+                .data(function(d) { return (hideable && !data.length) ? hideable.values : d.values });
+            bars.exit().remove();
+
+            var barsEnter = bars.enter().append('rect')
+                    .attr('class', function(d,i) { return getY(d,i) < 0 ? 'nv-bar negative' : 'nv-bar positive'})
+                    .attr('x', function(d,i,j) {
+                        return stacked && !data[j].nonStackable ? 0 : (j * x.rangeBand() / data.length )
+                    })
+                    .attr('y', function(d,i,j) { return y0(stacked && !data[j].nonStackable ? d.y0 : 0) || 0 })
+                    .attr('height', 0)
+                    .attr('width', function(d,i,j) { return x.rangeBand() / (stacked && !data[j].nonStackable ? 1 : data.length) })
+                    .attr('transform', function(d,i) { return 'translate(' + x(getX(d,i)) + ',0)'; })
+                ;
+            bars
+                .style('fill', function(d,i,j){ return color(d, j, i);  })
+                .style('stroke', function(d,i,j){ return color(d, j, i); })
+                .on('mouseover', function(d,i) { //TODO: figure out why j works above, but not here
+                    d3.select(this).classed('hover', true);
+                    dispatch.elementMouseover({
+                        data: d,
+                        index: i,
+                        color: d3.select(this).style("fill")
+                    });
+                })
+                .on('mouseout', function(d,i) {
+                    d3.select(this).classed('hover', false);
+                    dispatch.elementMouseout({
+                        data: d,
+                        index: i,
+                        color: d3.select(this).style("fill")
+                    });
+                })
+                .on('mousemove', function(d,i) {
+                    dispatch.elementMousemove({
+                        data: d,
+                        index: i,
+                        color: d3.select(this).style("fill")
+                    });
+                })
+                .on('click', function(d,i) {
+                    var element = this;
+                    dispatch.elementClick({
+                        data: d,
+                        index: i,
+                        color: d3.select(this).style("fill"),
+                        event: d3.event,
+                        element: element
+                    });
+                    d3.event.stopPropagation();
+                })
+                .on('dblclick', function(d,i) {
+                    dispatch.elementDblClick({
+                        data: d,
+                        index: i,
+                        color: d3.select(this).style("fill")
+                    });
+                    d3.event.stopPropagation();
+                });
+            bars
+                .attr('class', function(d,i) { return getY(d,i) < 0 ? 'nv-bar negative' : 'nv-bar positive'})
+                .attr('transform', function(d,i) { return 'translate(' + x(getX(d,i)) + ',0)'; })
+
+            if (barColor) {
+                if (!disabled) disabled = data.map(function() { return true });
+                bars
+                    .style('fill', function(d,i,j) { return d3.rgb(barColor(d,i)).darker(  disabled.map(function(d,i) { return i }).filter(function(d,i){ return !disabled[i]  })[j]   ).toString(); })
+                    .style('stroke', function(d,i,j) { return d3.rgb(barColor(d,i)).darker(  disabled.map(function(d,i) { return i }).filter(function(d,i){ return !disabled[i]  })[j]   ).toString(); });
+            }
+
+            var barSelection =
+                bars.watchTransition(renderWatch, 'multibar', Math.min(250, duration))
+                    .delay(function(d,i) {
+                        return i * duration / data[0].values.length;
+                    });
+            if (stacked){
+                barSelection
+                    .attr('y', function(d,i,j) {
+                        var yVal = 0;
+                        // if stackable, stack it on top of the previous series
+                        if (!data[j].nonStackable) {
+                            yVal = y(d.y1);
+                        } else {
+                            if (getY(d,i) < 0){
+                                yVal = y(0);
+                            } else {
+                                if (y(0) - y(getY(d,i)) < -1){
+                                    yVal = y(0) - 1;
+                                } else {
+                                    yVal = y(getY(d, i)) || 0;
+                                }
+                            }
+                        }
+                        return yVal;
+                    })
+                    .attr('height', function(d,i,j) {
+                        if (!data[j].nonStackable) {
+                            return Math.max(Math.abs(y(d.y+d.y0) - y(d.y0)), 0);
+                        } else {
+                            return Math.max(Math.abs(y(getY(d,i)) - y(0)), 0) || 0;
+                        }
+                    })
+                    .attr('x', function(d,i,j) {
+                        var width = 0;
+                        if (data[j].nonStackable) {
+                            width = d.series * x.rangeBand() / data.length;
+                            if (data.length !== nonStackableCount){
+                                width = data[j].nonStackableSeries * x.rangeBand()/(nonStackableCount*2);
+                            }
+                        }
+                        return width;
+                    })
+                    .attr('width', function(d,i,j){
+                        if (!data[j].nonStackable) {
+                            return x.rangeBand();
+                        } else {
+                            // if all series are nonStacable, take the full width
+                            var width = (x.rangeBand() / nonStackableCount);
+                            // otherwise, nonStackable graph will be only taking the half-width
+                            // of the x rangeBand
+                            if (data.length !== nonStackableCount) {
+                                width = x.rangeBand()/(nonStackableCount*2);
+                            }
+                            return width;
+                        }
+                    });
+            }
+            else {
+                barSelection
+                    .attr('x', function(d,i) {
+                        return d.series * x.rangeBand() / data.length;
+                    })
+                    .attr('width', x.rangeBand() / data.length)
+                    .attr('y', function(d,i) {
+                        return getY(d,i) < 0 ?
+                            y(0) :
+                                y(0) - y(getY(d,i)) < 1 ?
+                            y(0) - 1 :
+                            y(getY(d,i)) || 0;
+                    })
+                    .attr('height', function(d,i) {
+                        return Math.max(Math.abs(y(getY(d,i)) - y(0)),1) || 0;
+                    });
+            }
+
+            //store old scales for use in transitions on update
+            x0 = x.copy();
+            y0 = y.copy();
+
+            // keep track of the last data value length for transition calculations
+            if (data[0] && data[0].values) {
+                last_datalength = data[0].values.length;
+            }
+
+        });
+
+        renderWatch.renderEnd('multibar immediate');
+
+        return chart;
+    }
+
+    //============================================================
+    // Expose Public Variables
+    //------------------------------------------------------------
+
+    chart.dispatch = dispatch;
+
+    chart.options = nv.utils.optionsFunc.bind(chart);
+
+    chart._options = Object.create({}, {
+        // simple options, just get/set the necessary values
+        width:   {get: function(){return width;}, set: function(_){width=_;}},
+        height:  {get: function(){return height;}, set: function(_){height=_;}},
+        x:       {get: function(){return getX;}, set: function(_){getX=_;}},
+        y:       {get: function(){return getY;}, set: function(_){getY=_;}},
+        xScale:  {get: function(){return x;}, set: function(_){x=_;}},
+        yScale:  {get: function(){return y;}, set: function(_){y=_;}},
+        xDomain: {get: function(){return xDomain;}, set: function(_){xDomain=_;}},
+        yDomain: {get: function(){return yDomain;}, set: function(_){yDomain=_;}},
+        xRange:  {get: function(){return xRange;}, set: function(_){xRange=_;}},
+        yRange:  {get: function(){return yRange;}, set: function(_){yRange=_;}},
+        forceY:  {get: function(){return forceY;}, set: function(_){forceY=_;}},
+        stacked: {get: function(){return stacked;}, set: function(_){stacked=_;}},
+        stackOffset: {get: function(){return stackOffset;}, set: function(_){stackOffset=_;}},
+        clipEdge:    {get: function(){return clipEdge;}, set: function(_){clipEdge=_;}},
+        disabled:    {get: function(){return disabled;}, set: function(_){disabled=_;}},
+        id:          {get: function(){return id;}, set: function(_){id=_;}},
+        hideable:    {get: function(){return hideable;}, set: function(_){hideable=_;}},
+        groupSpacing:{get: function(){return groupSpacing;}, set: function(_){groupSpacing=_;}},
+
+        // options that require extra logic in the setter
+        margin: {get: function(){return margin;}, set: function(_){
+            margin.top    = _.top    !== undefined ? _.top    : margin.top;
+            margin.right  = _.right  !== undefined ? _.right  : margin.right;
+            margin.bottom = _.bottom !== undefined ? _.bottom : margin.bottom;
+            margin.left   = _.left   !== undefined ? _.left   : margin.left;
+        }},
+        duration: {get: function(){return duration;}, set: function(_){
+            duration = _;
+            renderWatch.reset(duration);
+        }},
+        color:  {get: function(){return color;}, set: function(_){
+            color = nv.utils.getColor(_);
+        }},
+        barColor:  {get: function(){return barColor;}, set: function(_){
+            barColor = _ ? nv.utils.getColor(_) : null;
+        }}
+    });
+
+    nv.utils.initOptions(chart);
+
+    return chart;
+};nv.models.legend = function() {
+    "use strict";
+
+    //============================================================
+    // Public Variables with Default Settings
+    //------------------------------------------------------------
+
+    var margin = {top: 5, right: 0, bottom: 5, left: 0}
+        , width = 400
+        , height = 20
+        , getKey = function(d) { return d.key }
+        , color = nv.utils.getColor()
+        , maxKeyLength = 20 //default value for key lengths
+        , align = true
+        , padding = 32 //define how much space between legend items. - recommend 32 for furious version
+        , rightAlign = true
+        , updateState = true   //If true, legend will update data.disabled and trigger a 'stateChange' dispatch.
+        , radioButtonMode = false   //If true, clicking legend items will cause it to behave like a radio button. (only one can be selected at a time)
+        , expanded = false
+        , dispatch = d3.dispatch('legendClick', 'legendDblclick', 'legendMouseover', 'legendMouseout', 'stateChange')
+        , vers = 'classic' //Options are "classic" and "furious"
+        ;
+
+    function chart(selection) {
+        selection.each(function(data) {
+            var availableWidth = width - margin.left - margin.right,
+                container = d3.select(this);
+            nv.utils.initSVG(container);
+
+            // Setup containers and skeleton of chart
+            var wrap = container.selectAll('g.nv-legend').data([data]);
+            var gEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-legend').append('g');
+            var g = wrap.select('g');
+
+            wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
+
+            var series = g.selectAll('.nv-series')
+                .data(function(d) {
+                    if(vers != 'furious') return d;
+
+                    return d.filter(function(n) {
+                        return expanded ? true : !n.disengaged;
+                    });
+                });
+
+            var seriesEnter = series.enter().append('g').attr('class', 'nv-series');
+            var seriesShape;
+
+            var versPadding;
+            switch(vers) {
+                case 'furious' :
+                    versPadding = 23;
+                    break;
+                case 'classic' :
+                    versPadding = 20;
+            }
+
+            if(vers == 'classic') {
+                seriesEnter.append('circle')
+                    .style('stroke-width', 2)
+                    .attr('class','nv-legend-symbol')
+                    .attr('r', 5);
+
+                seriesShape = series.select('circle');
+            } else if (vers == 'furious') {
+                seriesEnter.append('rect')
+                    .style('stroke-width', 2)
+                    .attr('class','nv-legend-symbol')
+                    .attr('rx', 3)
+                    .attr('ry', 3);
+                seriesShape = series.select('.nv-legend-symbol');
+
+                seriesEnter.append('g')
+                    .attr('class', 'nv-check-box')
+                    .property('innerHTML','<path d="M0.5,5 L22.5,5 L22.5,26.5 L0.5,26.5 L0.5,5 Z" class="nv-box"></path><path d="M5.5,12.8618467 L11.9185089,19.2803556 L31,0.198864511" class="nv-check"></path>')
+                    .attr('transform', 'translate(-10,-8)scale(0.5)');
+
+                var seriesCheckbox = series.select('.nv-check-box');
+
+                seriesCheckbox.each(function(d,i) {
+                    d3.select(this).selectAll('path')
+                        .attr('stroke', setTextColor(d,i));
+                });
+            }
+
+            seriesEnter.append('text')
+                .attr('text-anchor', 'start')
+                .attr('class','nv-legend-text')
+                .attr('dy', '.32em')
+                .attr('dx', '8');
+
+            var seriesText = series.select('text.nv-legend-text');
+
+            series
+                .on('mouseover', function(d,i) {
+                    dispatch.legendMouseover(d,i);  //TODO: Make consistent with other event objects
+                })
+                .on('mouseout', function(d,i) {
+                    dispatch.legendMouseout(d,i);
+                })
+                .on('click', function(d,i) {
+                    dispatch.legendClick(d,i);
+                    // make sure we re-get data in case it was modified
+                    var data = series.data();
+                    if (updateState) {
+                        if(vers =='classic') {
+                            if (radioButtonMode) {
+                                //Radio button mode: set every series to disabled,
+                                //  and enable the clicked series.
+                                data.forEach(function(series) { series.disabled = true});
+                                d.disabled = false;
+                            }
+                            else {
+                                d.disabled = !d.disabled;
+                                if (data.every(function(series) { return series.disabled})) {
+                                    //the default behavior of NVD3 legends is, if every single series
+                                    // is disabled, turn all series' back on.
+                                    data.forEach(function(series) { series.disabled = false});
+                                }
+                            }
+                        } else if(vers == 'furious') {
+                            if(expanded) {
+                                d.disengaged = !d.disengaged;
+                                d.userDisabled = d.userDisabled == undefined ? !!d.disabled : d.userDisabled;
+                                d.disabled = d.disengaged || d.userDisabled;
+                            } else if (!expanded) {
+                                d.disabled = !d.disabled;
+                                d.userDisabled = d.disabled;
+                                var engaged = data.filter(function(d) { return !d.disengaged; });
+                                if (engaged.every(function(series) { return series.userDisabled })) {
+                                    //the default behavior of NVD3 legends is, if every single series
+                                    // is disabled, turn all series' back on.
+                                    data.forEach(function(series) {
+                                        series.disabled = series.userDisabled = false;
+                                    });
+                                }
+                            }
+                        }
+                        dispatch.stateChange({
+                            disabled: data.map(function(d) { return !!d.disabled }),
+                            disengaged: data.map(function(d) { return !!d.disengaged })
+                        });
+
+                    }
+                })
+                .on('dblclick', function(d,i) {
+                    if(vers == 'furious' && expanded) return;
+                    dispatch.legendDblclick(d,i);
+                    if (updateState) {
+                        // make sure we re-get data in case it was modified
+                        var data = series.data();
+                        //the default behavior of NVD3 legends, when double clicking one,
+                        // is to set all other series' to false, and make the double clicked series enabled.
+                        data.forEach(function(series) {
+                            series.disabled = true;
+                            if(vers == 'furious') series.userDisabled = series.disabled;
+                        });
+                        d.disabled = false;
+                        if(vers == 'furious') d.userDisabled = d.disabled;
+                        dispatch.stateChange({
+                            disabled: data.map(function(d) { return !!d.disabled })
+                        });
+                    }
+                });
+
+            series.classed('nv-disabled', function(d) { return d.userDisabled });
+            series.exit().remove();
+
+            seriesText
+                .attr('fill', setTextColor)
+                .text(getKey);
+
+            //TODO: implement fixed-width and max-width options (max-width is especially useful with the align option)
+            // NEW ALIGNING CODE, TODO: clean up
+            var legendWidth = 0;
+            if (align) {
+
+                var seriesWidths = [];
+                series.each(function(d,i) {
+                    var legendText;
+                    if (getKey(d).length > maxKeyLength) { 
+                        var trimmedKey = getKey(d).substring(0, maxKeyLength);
+                        legendText = d3.select(this).select('text').text(trimmedKey + "...");
+                        d3.select(this).append("svg:title").text(getKey(d));
+                    } else {
+                        legendText = d3.select(this).select('text');
+                    } 
+                    var nodeTextLength;
+                    try {
+                        nodeTextLength = legendText.node().getComputedTextLength();
+                        // If the legendText is display:none'd (nodeTextLength == 0), simulate an error so we approximate, instead
+                        if(nodeTextLength <= 0) throw Error();
+                    }
+                    catch(e) {
+                        nodeTextLength = nv.utils.calcApproxTextWidth(legendText);
+                    }
+
+                    seriesWidths.push(nodeTextLength + padding);
+                });
+
+                var seriesPerRow = 0;
+                var columnWidths = [];
+                legendWidth = 0;
+
+                while ( legendWidth < availableWidth && seriesPerRow < seriesWidths.length) {
+                    columnWidths[seriesPerRow] = seriesWidths[seriesPerRow];
+                    legendWidth += seriesWidths[seriesPerRow++];
+                }
+                if (seriesPerRow === 0) seriesPerRow = 1; //minimum of one series per row
+
+                while ( legendWidth > availableWidth && seriesPerRow > 1 ) {
+                    columnWidths = [];
+                    seriesPerRow--;
+
+                    for (var k = 0; k < seriesWidths.length; k++) {
+                        if (seriesWidths[k] > (columnWidths[k % seriesPerRow] || 0) )
+                            columnWidths[k % seriesPerRow] = seriesWidths[k];
+                    }
+
+                    legendWidth = columnWidths.reduce(function(prev, cur, index, array) {
+                        return prev + cur;
+                    });
+                }
+
+                var xPositions = [];
+                for (var i = 0, curX = 0; i < seriesPerRow; i++) {
+                    xPositions[i] = curX;
+                    curX += columnWidths[i];
+                }
+
+                series
+                    .attr('transform', function(d, i) {
+                        return 'translate(' + xPositions[i % seriesPerRow] + ',' + (5 + Math.floor(i / seriesPerRow) * versPadding) + ')';
+                    });
+
+                //position legend as far right as possible within the total width
+                if (rightAlign) {
+                    g.attr('transform', 'translate(' + (width - margin.right - legendWidth) + ',' + margin.top + ')');
+                }
+                else {
+                    g.attr('transform', 'translate(0' + ',' + margin.top + ')');
+                }
+
+                height = margin.top + margin.bottom + (Math.ceil(seriesWidths.length / seriesPerRow) * versPadding);
+
+            } else {
+
+                var ypos = 5,
+                    newxpos = 5,
+                    maxwidth = 0,
+                    xpos;
+                series
+                    .attr('transform', function(d, i) {
+                        var length = d3.select(this).select('text').node().getComputedTextLength() + padding;
+                        xpos = newxpos;
+
+                        if (width < margin.left + margin.right + xpos + length) {
+                            newxpos = xpos = 5;
+                            ypos += versPadding;
+                        }
+
+                        newxpos += length;
+                        if (newxpos > maxwidth) maxwidth = newxpos;
+
+                        if(legendWidth < xpos + maxwidth) {
+                            legendWidth = xpos + maxwidth;
+                        }
+                        return 'translate(' + xpos + ',' + ypos + ')';
+                    });
+
+                //position legend as far right as possible within the total width
+                g.attr('transform', 'translate(' + (width - margin.right - maxwidth) + ',' + margin.top + ')');
+
+                height = margin.top + margin.bottom + ypos + 15;
+            }
+
+            if(vers == 'furious') {
+                // Size rectangles after text is placed
+                seriesShape
+                    .attr('width', function(d,i) {
+                        return seriesText[0][i].getComputedTextLength() + 27;
+                    })
+                    .attr('height', 18)
+                    .attr('y', -9)
+                    .attr('x', -15);
+
+                // The background for the expanded legend (UI)
+                gEnter.insert('rect',':first-child')
+                    .attr('class', 'nv-legend-bg')
+                    .attr('fill', '#eee')
+                    // .attr('stroke', '#444')
+                    .attr('opacity',0);
+
+                var seriesBG = g.select('.nv-legend-bg');
+
+                seriesBG
+                .transition().duration(300)
+                    .attr('x', -versPadding )
+                    .attr('width', legendWidth + versPadding - 12)
+                    .attr('height', height + 10)
+                    .attr('y', -margin.top - 10)
+                    .attr('opacity', expanded ? 1 : 0);
+
+
+            }
+
+            seriesShape
+                .style('fill', setBGColor)
+                .style('fill-opacity', setBGOpacity)
+                .style('stroke', setBGColor);
+        });
+
+        function setTextColor(d,i) {
+            if(vers != 'furious') return '#000';
+            if(expanded) {
+                return d.disengaged ? '#000' : '#fff';
+            } else if (!expanded) {
+                if(!d.color) d.color = color(d,i);
+                return !!d.disabled ? d.color : '#fff';
+            }
+        }
+
+        function setBGColor(d,i) {
+            if(expanded && vers == 'furious') {
+                return d.disengaged ? '#eee' : d.color || color(d,i);
+            } else {
+                return d.color || color(d,i);
+            }
+        }
+
+
+        function setBGOpacity(d,i) {
+            if(expanded && vers == 'furious') {
+                return 1;
+            } else {
+                return !!d.disabled ? 0 : 1;
+            }
+        }
+
+        return chart;
+    }
+
+    //============================================================
+    // Expose Public Variables
+    //------------------------------------------------------------
+
+    chart.dispatch = dispatch;
+    chart.options = nv.utils.optionsFunc.bind(chart);
+
+    chart._options = Object.create({}, {
+        // simple options, just get/set the necessary values
+        width:      {get: function(){return width;}, set: function(_){width=_;}},
+        height:     {get: function(){return height;}, set: function(_){height=_;}},
+        key:        {get: function(){return getKey;}, set: function(_){getKey=_;}},
+        align:      {get: function(){return align;}, set: function(_){align=_;}},
+        maxKeyLength:   {get: function(){return maxKeyLength;}, set: function(_){maxKeyLength=_;}},
+        rightAlign:    {get: function(){return rightAlign;}, set: function(_){rightAlign=_;}},
+        padding:       {get: function(){return padding;}, set: function(_){padding=_;}},
+        updateState:   {get: function(){return updateState;}, set: function(_){updateState=_;}},
+        radioButtonMode:    {get: function(){return radioButtonMode;}, set: function(_){radioButtonMode=_;}},
+        expanded:   {get: function(){return expanded;}, set: function(_){expanded=_;}},
+        vers:   {get: function(){return vers;}, set: function(_){vers=_;}},
+
+        // options that require extra logic in the setter
+        margin: {get: function(){return margin;}, set: function(_){
+            margin.top    = _.top    !== undefined ? _.top    : margin.top;
+            margin.right  = _.right  !== undefined ? _.right  : margin.right;
+            margin.bottom = _.bottom !== undefined ? _.bottom : margin.bottom;
+            margin.left   = _.left   !== undefined ? _.left   : margin.left;
+        }},
+        color:  {get: function(){return color;}, set: function(_){
+            color = nv.utils.getColor(_);
+        }}
+    });
+
+    nv.utils.initOptions(chart);
+
+    return chart;
+};
+nv.models.lineChart = function() {
+    "use strict";
+
+    //============================================================
+    // Public Variables with Default Settings
+    //------------------------------------------------------------
+
+    var lines = nv.models.line()
+        , xAxis = nv.models.axis()
+        , yAxis = nv.models.axis()
+        , legend = nv.models.legend()
+        , interactiveLayer = nv.interactiveGuideline()
+        , tooltip = nv.models.tooltip()
+        , lines2 = nv.models.line()
+        , x2Axis = nv.models.axis()
+        , y2Axis = nv.models.axis()
+        , brush = d3.svg.brush()
+        ;
+
+    var margin = {top: 30, right: 20, bottom: 50, left: 60}
+        , margin2 = {top: 0, right: 20, bottom: 20, left: 60}
+        , color = nv.utils.defaultColor()
+        , width = null
+        , height = null
+        , showLegend = true
+        , legendPosition = 'top'
+        , showXAxis = true
+        , showYAxis = true
+        , rightAlignYAxis = false
+        , useInteractiveGuideline = false
+        , x
+        , y
+        , x2
+        , y2
+        , focusEnable = false
+        , focusShowAxisY = false
+        , focusShowAxisX = true
+        , focusHeight = 50
+        , brushExtent = null
+        , state = nv.utils.state()
+        , defaultState = null
+        , noData = null
+        , dispatch = d3.dispatch('tooltipShow', 'tooltipHide', 'brush', 'stateChange', 'changeState', 'renderEnd')
+        , duration = 250
+        ;
+
+    // set options on sub-objects for this chart
+    xAxis.orient('bottom').tickPadding(7);
+    yAxis.orient(rightAlignYAxis ? 'right' : 'left');
+
+    lines.clipEdge(true).duration(0);
+    lines2.interactive(false);
+    // We don't want any points emitted for the focus chart's scatter graph.
+    lines2.pointActive(function(d) { return false; });
+
+    x2Axis.orient('bottom').tickPadding(5);
+    y2Axis.orient(rightAlignYAxis ? 'right' : 'left');
+
+    tooltip.valueFormatter(function(d, i) {
+        return yAxis.tickFormat()(d, i);
+    }).headerFormatter(function(d, i) {
+        return xAxis.tickFormat()(d, i);
+    });
+    
+    interactiveLayer.tooltip.valueFormatter(function(d, i) {
+        return yAxis.tickFormat()(d, i);
+    }).headerFormatter(function(d, i) {
+        return xAxis.tickFormat()(d, i);
+    });
+
+
+    //============================================================
+    // Private Variables
+    //------------------------------------------------------------
+
+    var renderWatch = nv.utils.renderWatch(dispatch, duration);
+
+    var stateGetter = function(data) {
+        return function(){
+            return {
+                active: data.map(function(d) { return !d.disabled; })
+            };
+        };
+    };
+
+    var stateSetter = function(data) {
+        return function(state) {
+            if (state.active !== undefined)
+                data.forEach(function(series,i) {
+                    series.disabled = !state.active[i];
+                });
+        };
+    };
+
+    function chart(selection) {
+        renderWatch.reset();
+        renderWatch.models(lines);
+        renderWatch.models(lines2);
+        if (showXAxis) renderWatch.models(xAxis);
+        if (showYAxis) renderWatch.models(yAxis);
+
+        if (focusShowAxisX) renderWatch.models(x2Axis);
+        if (focusShowAxisY) renderWatch.models(y2Axis);
+        selection.each(function(data) {
+            var container = d3.select(this);
+            nv.utils.initSVG(container);
+            var availableWidth = nv.utils.availableWidth(width, container, margin),
+                availableHeight1 = nv.utils.availableHeight(height, container, margin) - (focusEnable ? focusHeight : 0),
+                availableHeight2 = focusHeight - margin2.top - margin2.bottom;
+
+            chart.update = function() { 
+                if( duration === 0 ) {
+                    container.call( chart );
+                } else {
+                    container.transition().duration(duration).call(chart);
+                }
+            };
+            chart.container = this;
+
+            state
+                .setter(stateSetter(data), chart.update)
+                .getter(stateGetter(data))
+                .update();
+
+            // DEPRECATED set state.disabled
+            state.disabled = data.map(function(d) { return !!d.disabled; });
+
+            if (!defaultState) {
+                var key;
+                defaultState = {};
+                for (key in state) {
+                    if (state[key] instanceof Array)
+                        defaultState[key] = state[key].slice(0);
+                    else
+                        defaultState[key] = state[key];
+                }
+            }
+
+            // Display noData message if there's nothing to show.
+            if (!data || !data.length || !data.filter(function(d) { return d.values.length; }).length) {
+                nv.utils.noData(chart, container);
+                return chart;
+            } else {
+                container.selectAll('.nv-noData').remove();
+            }
+
+
+            // Setup Scales
+            x = lines.xScale();
+            y = lines.yScale();
+            x2 = lines2.xScale();
+            y2 = lines2.yScale();
+
+            // Setup containers and skeleton of chart
+            var wrap = container.selectAll('g.nv-wrap.nv-lineChart').data([data]);
+            var gEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-wrap nv-lineChart').append('g');
+            var g = wrap.select('g');
+
+            gEnter.append('g').attr('class', 'nv-legendWrap');
+
+            var focusEnter = gEnter.append('g').attr('class', 'nv-focus');
+            focusEnter.append('g').attr('class', 'nv-background').append('rect');
+            focusEnter.append('g').attr('class', 'nv-x nv-axis');
+            focusEnter.append('g').attr('class', 'nv-y nv-axis');
+            focusEnter.append('g').attr('class', 'nv-linesWrap');
+            focusEnter.append('g').attr('class', 'nv-interactive');
+
+            var contextEnter = gEnter.append('g').attr('class', 'nv-context');
+            contextEnter.append('g').attr('class', 'nv-background').append('rect');
+            contextEnter.append('g').attr('class', 'nv-x nv-axis');
+            contextEnter.append('g').attr('class', 'nv-y nv-axis');
+            contextEnter.append('g').attr('class', 'nv-linesWrap');
+            contextEnter.append('g').attr('class', 'nv-brushBackground');
+            contextEnter.append('g').attr('class', 'nv-x nv-brush');
+
+            // Legend
+            if (!showLegend) {
+                g.select('.nv-legendWrap').selectAll('*').remove();
+            } else {
+                legend.width(availableWidth);
+
+                g.select('.nv-legendWrap')
+                    .datum(data)
+                    .call(legend);
+
+                if (legendPosition === 'bottom') {
+                    wrap.select('.nv-legendWrap')
+                        .attr('transform', 'translate(0,' + (availableHeight1 + legend.height()) +')');
+                } else if (legendPosition === 'top') {
+                    if ( margin.top != legend.height()) {
+                        margin.top = legend.height();
+                        availableHeight1 = nv.utils.availableHeight(height, container, margin) - (focusEnable ? focusHeight : 0);
+                    }
+
+                    wrap.select('.nv-legendWrap')
+                        .attr('transform', 'translate(0,' + (-margin.top) +')');
+                }
+            }
+
+            wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
+
+            if (rightAlignYAxis) {
+                g.select(".nv-y.nv-axis")
+                    .attr("transform", "translate(" + availableWidth + ",0)");
+            }
+
+            //Set up interactive layer
+            if (useInteractiveGuideline) {
+                interactiveLayer
+                    .width(availableWidth)
+                    .height(availableHeight1)
+                    .margin({left:margin.left, top:margin.top})
+                    .svgContainer(container)
+                    .xScale(x);
+                wrap.select(".nv-interactive").call(interactiveLayer);
+            }
+
+            g.select('.nv-focus .nv-background rect')
+                .attr('width', availableWidth)
+                .attr('height', availableHeight1);
+                
+            lines
+                .width(availableWidth)
+                .height(availableHeight1)
+                .color(data.map(function(d,i) {
+                    return d.color || color(d, i);
+
+                }).filter(function(d,i) { return !data[i].disabled; }));
+
+            var linesWrap = g.select('.nv-linesWrap')
+                .datum(data.filter(function(d) { return !d.disabled; }));
+
+
+            // Setup Main (Focus) Axes
+            if (showXAxis) {
+                xAxis
+                    .scale(x)
+                    ._ticks(nv.utils.calcTicksX(availableWidth/100, data) )
+                    .tickSize(-availableHeight1, 0);
+
+            }
+
+            if (showYAxis) {
+                yAxis
+                    .scale(y)
+                    ._ticks( nv.utils.calcTicksY(availableHeight1/36, data) )
+                    .tickSize( -availableWidth, 0);
+            }
+
+            //============================================================
+            // Update Axes
+            //============================================================
+            function updateXAxis() {
+              if(showXAxis) {
+                g.select('.nv-focus .nv-x.nv-axis')
+                  .transition()
+                  .duration(duration)
+                  .call(xAxis)
+                ;
+              }
+            }
+
+            function updateYAxis() {
+              if(showYAxis) {
+                g.select('.nv-focus .nv-y.nv-axis')
+                  .transition()
+                  .duration(duration)
+                  .call(yAxis)
+                ;
+              }
+            }
+            
+            g.select('.nv-focus .nv-x.nv-axis')
+                .attr('transform', 'translate(0,' + availableHeight1 + ')');
+
+            if( !focusEnable )
+            {
+                linesWrap.call(lines);
+                updateXAxis();
+                updateYAxis();
+            }
+            else
+            {
+                lines2
+                    .defined(lines.defined())
+                    .width(availableWidth)
+                    .height(availableHeight2)
+                    .color(data.map(function(d,i) {
+                        return d.color || color(d, i);
+                    }).filter(function(d,i) { return !data[i].disabled; }));
+    
+                g.select('.nv-context')
+                    .attr('transform', 'translate(0,' + ( availableHeight1 + margin.bottom + margin2.top) + ')')
+                    .style('display', focusEnable ? 'initial' : 'none')
+                ;
+    
+                var contextLinesWrap = g.select('.nv-context .nv-linesWrap')
+                    .datum(data.filter(function(d) { return !d.disabled; }))
+                    ;
+                    
+                d3.transition(contextLinesWrap).call(lines2);
+                
+            
+                // Setup Brush
+                brush
+                    .x(x2)
+                    .on('brush', function() {
+                        onBrush();
+                    });
+    
+                if (brushExtent) brush.extent(brushExtent);
+    
+                var brushBG = g.select('.nv-brushBackground').selectAll('g')
+                    .data([brushExtent || brush.extent()]);
+        
+                var brushBGenter = brushBG.enter()
+                    .append('g');
+    
+                brushBGenter.append('rect')
+                    .attr('class', 'left')
+                    .attr('x', 0)
+                    .attr('y', 0)
+                    .attr('height', availableHeight2);
+    
+                brushBGenter.append('rect')
+                    .attr('class', 'right')
+                    .attr('x', 0)
+                    .attr('y', 0)
+                    .attr('height', availableHeight2);
+    
+                var gBrush = g.select('.nv-x.nv-brush')
+                    .call(brush);
+                gBrush.selectAll('rect')
+                    .attr('height', availableHeight2);
+                gBrush.selectAll('.resize').append('path').attr('d', resizePath);
+    
+                onBrush();
+    
+                g.select('.nv-context .nv-background rect')
+                    .attr('width', availableWidth)
+                    .attr('height', availableHeight2);
+    
+                // Setup Secondary (Context) Axes
+                if (focusShowAxisX) {
+                  x2Axis
+                      .scale(x2)
+                      ._ticks( nv.utils.calcTicksX(availableWidth/100, data) )
+                      .tickSize(-availableHeight2, 0);
+      
+                  g.select('.nv-context .nv-x.nv-axis')
+                      .attr('transform', 'translate(0,' + y2.range()[0] + ')');
+                  d3.transition(g.select('.nv-context .nv-x.nv-axis'))
+                      .call(x2Axis);
+                }
+    
+                if (focusShowAxisY) {
+                  y2Axis
+                      .scale(y2)
+                      ._ticks( nv.utils.calcTicksY(availableHeight2/36, data) )
+                      .tickSize( -availableWidth, 0);
+      
+                  d3.transition(g.select('.nv-context .nv-y.nv-axis'))
+                      .call(y2Axis);
+                }
+                
+                g.select('.nv-context .nv-x.nv-axis')
+                    .attr('transform', 'translate(0,' + y2.range()[0] + ')');
+            }
+
+            //============================================================
+            // Event Handling/Dispatching (in chart's scope)
+            //------------------------------------------------------------
+
+            legend.dispatch.on('stateChange', function(newState) {
+                for (var key in newState)
+                    state[key] = newState[key];
+                dispatch.stateChange(state);
+                chart.update();
+            });
+
+            interactiveLayer.dispatch.on('elementMousemove', function(e) {
+                lines.clearHighlights();
+                var singlePoint, pointIndex, pointXLocation, allData = [];
+                data
+                    .filter(function(series, i) {
+                        series.seriesIndex = i;
+                        return !series.disabled && !series.disableTooltip;
+                    })
+                    .forEach(function(series,i) {
+                        var extent = focusEnable ? (brush.empty() ? x2.domain() : brush.extent()) : x.domain();
+                        var currentValues = series.values.filter(function(d,i) {
+                            return lines.x()(d,i) >= extent[0] && lines.x()(d,i) <= extent[1];
+                        });
+
+                        pointIndex = nv.interactiveBisect(currentValues, e.pointXValue, lines.x());
+                        var point = currentValues[pointIndex];
+                        var pointYValue = chart.y()(point, pointIndex);
+                        if (pointYValue !== null) {
+                            lines.highlightPoint(series.seriesIndex, pointIndex, true);
+                        }
+                        if (point === undefined) return;
+                        if (singlePoint === undefined) singlePoint = point;
+                        if (pointXLocation === undefined) pointXLocation = chart.xScale()(chart.x()(point,pointIndex));
+                        allData.push({
+                            key: series.key,
+                            value: pointYValue,
+                            color: color(series,series.seriesIndex),
+                            data: point
+                        });
+                    });
+                //Highlight the tooltip entry based on which point the mouse is closest to.
+                if (allData.length > 2) {
+                    var yValue = chart.yScale().invert(e.mouseY);
+                    var domainExtent = Math.abs(chart.yScale().domain()[0] - chart.yScale().domain()[1]);
+                    var threshold = 0.03 * domainExtent;
+                    var indexToHighlight = nv.nearestValueIndex(allData.map(function(d){return d.value;}),yValue,threshold);
+                    if (indexToHighlight !== null)
+                        allData[indexToHighlight].highlight = true;
+                }
+
+                var defaultValueFormatter = function(d,i) {
+                    return d == null ? "N/A" : yAxis.tickFormat()(d);
+                };
+
+                interactiveLayer.tooltip
+                    .chartContainer(chart.container.parentNode)
+                    .valueFormatter(interactiveLayer.tooltip.valueFormatter() || defaultValueFormatter)
+                    .data({
+                        value: chart.x()( singlePoint,pointIndex ),
+                        index: pointIndex,
+                        series: allData
+                    })();
+
+                interactiveLayer.renderGuideLine(pointXLocation);
+
+            });
+
+            interactiveLayer.dispatch.on('elementClick', function(e) {
+                var pointXLocation, allData = [];
+
+                data.filter(function(series, i) {
+                    series.seriesIndex = i;
+                    return !series.disabled;
+                }).forEach(function(series) {
+                    var pointIndex = nv.interactiveBisect(series.values, e.pointXValue, chart.x());
+                    var point = series.values[pointIndex];
+                    if (typeof point === 'undefined') return;
+                    if (typeof pointXLocation === 'undefined') pointXLocation = chart.xScale()(chart.x()(point,pointIndex));
+                    var yPos = chart.yScale()(chart.y()(point,pointIndex));
+                    allData.push({
+                        point: point,
+                        pointIndex: pointIndex,
+                        pos: [pointXLocation, yPos],
+                        seriesIndex: series.seriesIndex,
+                        series: series
+                    });
+                });
+
+                lines.dispatch.elementClick(allData);
+            });
+
+            interactiveLayer.dispatch.on("elementMouseout",function(e) {
+                lines.clearHighlights();
+            });
+
+            dispatch.on('changeState', function(e) {
+                if (typeof e.disabled !== 'undefined' && data.length === e.disabled.length) {
+                    data.forEach(function(series,i) {
+                        series.disabled = e.disabled[i];
+                    });
+
+                    state.disabled = e.disabled;
+                }
+
+                chart.update();
+            });
+
+            //============================================================
+            // Functions
+            //------------------------------------------------------------
+    
+            // Taken from crossfilter (http://square.github.com/crossfilter/)
+            function resizePath(d) {
+                var e = +(d == 'e'),
+                    x = e ? 1 : -1,
+                    y = availableHeight2 / 3;
+                return 'M' + (0.5 * x) + ',' + y
+                    + 'A6,6 0 0 ' + e + ' ' + (6.5 * x) + ',' + (y + 6)
+                    + 'V' + (2 * y - 6)
+                    + 'A6,6 0 0 ' + e + ' ' + (0.5 * x) + ',' + (2 * y)
+                    + 'Z'
+                    + 'M' + (2.5 * x) + ',' + (y + 8)
+                    + 'V' + (2 * y - 8)
+                    + 'M' + (4.5 * x) + ',' + (y + 8)
+                    + 'V' + (2 * y - 8);
+            }
+    
+    
+            function updateBrushBG() {
+                if (!brush.empty()) brush.extent(brushExtent);
+                brushBG
+                    .data([brush.empty() ? x2.domain() : brushExtent])
+                    .each(function(d,i) {
+                        var leftWidth = x2(d[0]) - x.range()[0],
+                            rightWidth = availableWidth - x2(d[1]);
+                        d3.select(this).select('.left')
+                            .attr('width',  leftWidth < 0 ? 0 : leftWidth);
+    
+                        d3.select(this).select('.right')
+                            .attr('x', x2(d[1]))
+                            .attr('width', rightWidth < 0 ? 0 : rightWidth);
+                    });
+            }
+    
+    
+            function onBrush() {
+                brushExtent = brush.empty() ? null : brush.extent();
+                var extent = brush.empty() ? x2.domain() : brush.extent();
+    
+                //The brush extent cannot be less than one.  If it is, don't update the line chart.
+                if (Math.abs(extent[0] - extent[1]) <= 1) {
+                    return;
+                }
+    
+                dispatch.brush({extent: extent, brush: brush});
+    
+    
+                updateBrushBG();
+    
+                // Update Main (Focus)
+                var focusLinesWrap = g.select('.nv-focus .nv-linesWrap')
+                    .datum(
+                    data
+                        .filter(function(d) { return !d.disabled; })
+                        .map(function(d,i) {
+                            return {
+                                key: d.key,
+                                area: d.area,
+                                classed: d.classed,
+                                values: d.values.filter(function(d,i) {
+                                    return lines.x()(d,i) >= extent[0] && lines.x()(d,i) <= extent[1];
+                                }),
+                                disableTooltip: d.disableTooltip
+                            };
+                        })
+                );
+                focusLinesWrap.transition().duration(duration).call(lines);
+    
+    
+                // Update Main (Focus) Axes
+                updateXAxis();
+                updateYAxis();
+            }
+
+
+        });
+
+        renderWatch.renderEnd('lineChart immediate');
+        return chart;
+    }
+
+
+    //============================================================
+    // Event Handling/Dispatching (out of chart's scope)
+    //------------------------------------------------------------
+
+    lines.dispatch.on('elementMouseover.tooltip', function(evt) {
+        if(!evt.series.disableTooltip){
+            tooltip.data(evt).hidden(false);
+        }
+    });
+
+    lines.dispatch.on('elementMouseout.tooltip', function(evt) {
+        tooltip.hidden(true);
+    });
+
+    //============================================================
+    // Expose Public Variables
+    //------------------------------------------------------------
+
+    // expose chart's sub-components
+    chart.dispatch = dispatch;
+    chart.lines = lines;
+    chart.lines2 = lines2;
+    chart.legend = legend;
+    chart.xAxis = xAxis;
+    chart.x2Axis = x2Axis;
+    chart.yAxis = yAxis;
+    chart.y2Axis = y2Axis;
+    chart.interactiveLayer = interactiveLayer;
+    chart.tooltip = tooltip;
+    chart.state = state;
+    chart.dispatch = dispatch;
+    chart.options = nv.utils.optionsFunc.bind(chart);
+
+    chart._options = Object.create({}, {
+        // simple options, just get/set the necessary values
+        width:      {get: function(){return width;}, set: function(_){width=_;}},
+        height:     {get: function(){return height;}, set: function(_){height=_;}},
+        showLegend: {get: function(){return showLegend;}, set: function(_){showLegend=_;}},
+        legendPosition: {get: function(){return legendPosition;}, set: function(_){legendPosition=_;}},
+        showXAxis:      {get: function(){return showXAxis;}, set: function(_){showXAxis=_;}},
+        showYAxis:    {get: function(){return showYAxis;}, set: function(_){showYAxis=_;}},
+        focusEnable:    {get: function(){return focusEnable;}, set: function(_){focusEnable=_;}},
+        focusHeight:     {get: function(){return height2;}, set: function(_){focusHeight=_;}},
+        focusShowAxisX:    {get: function(){return focusShowAxisX;}, set: function(_){focusShowAxisX=_;}},
+        focusShowAxisY:    {get: function(){return focusShowAxisY;}, set: function(_){focusShowAxisY=_;}},
+        brushExtent: {get: function(){return brushExtent;}, set: function(_){brushExtent=_;}},
+        defaultState:    {get: function(){return defaultState;}, set: function(_){defaultState=_;}},
+        noData:    {get: function(){return noData;}, set: function(_){noData=_;}},
+
+        // options that require extra logic in the setter
+        margin: {get: function(){return margin;}, set: function(_){
+            margin.top    = _.top    !== undefined ? _.top    : margin.top;
+            margin.right  = _.right  !== undefined ? _.right  : margin.right;
+            margin.bottom = _.bottom !== undefined ? _.bottom : margin.bottom;
+            margin.left   = _.left   !== undefined ? _.left   : margin.left;
+        }},
+        duration: {get: function(){return duration;}, set: function(_){
+            duration = _;
+            renderWatch.reset(duration);
+            lines.duration(duration);
+            xAxis.duration(duration);
+            x2Axis.duration(duration);
+            yAxis.duration(duration);
+            y2Axis.duration(duration);
+        }},
+        focusMargin: {get: function(){return margin2;}, set: function(_){
+            margin2.top    = _.top    !== undefined ? _.top    : margin2.top;
+            margin2.right  = _.right  !== undefined ? _.right  : margin2.right;
+            margin2.bottom = _.bottom !== undefined ? _.bottom : margin2.bottom;
+            margin2.left   = _.left   !== undefined ? _.left   : margin2.left;
+        }},
+        color:  {get: function(){return color;}, set: function(_){
+            color = nv.utils.getColor(_);
+            legend.color(color);
+            lines.color(color);
+        }},
+        interpolate: {get: function(){return lines.interpolate();}, set: function(_){
+            lines.interpolate(_);
+            lines2.interpolate(_);
+        }},
+        xTickFormat: {get: function(){return xAxis.tickFormat();}, set: function(_){
+            xAxis.tickFormat(_);
+            x2Axis.tickFormat(_);
+        }},
+        yTickFormat: {get: function(){return yAxis.tickFormat();}, set: function(_){
+            yAxis.tickFormat(_);
+            y2Axis.tickFormat(_);
+        }},
+        x: {get: function(){return lines.x();}, set: function(_){
+            lines.x(_);
+            lines2.x(_);
+        }},
+        y: {get: function(){return lines.y();}, set: function(_){
+            lines.y(_);
+            lines2.y(_);
+        }},
+        rightAlignYAxis: {get: function(){return rightAlignYAxis;}, set: function(_){
+            rightAlignYAxis = _;
+            yAxis.orient( rightAlignYAxis ? 'right' : 'left');
+        }},
+        useInteractiveGuideline: {get: function(){return useInteractiveGuideline;}, set: function(_){
+            useInteractiveGuideline = _;
+            if (useInteractiveGuideline) {
+                lines.interactive(false);
+                lines.useVoronoi(false);
+            }
+        }}
+    });
+
+    nv.utils.inheritOptions(chart, lines);
+    nv.utils.initOptions(chart);
+
+    return chart;
+};
+
+nv.models.lineWithFocusChart = function() {
+  return nv.models.lineChart()
+    .margin({ bottom: 30 }) 
+    .focusEnable( true );
+};
+nv.models.line = function() {
+    "use strict";
+    //============================================================
+    // Public Variables with Default Settings
+    //------------------------------------------------------------
+
+    var  scatter = nv.models.scatter()
+        ;
+
+    var margin = {top: 0, right: 0, bottom: 0, left: 0}
+        , width = 960
+        , height = 500
+        , container = null
+        , strokeWidth = 1.5
+        , color = nv.utils.defaultColor() // a function that returns a color
+        , getX = function(d) { return d.x } // accessor to get the x value from a data point
+        , getY = function(d) { return d.y } // accessor to get the y value from a data point
+        , defined = function(d,i) { return !isNaN(getY(d,i)) && getY(d,i) !== null } // allows a line to be not continuous when it is not defined
+        , isArea = function(d) { return d.area } // decides if a line is an area or just a line
+        , clipEdge = false // if true, masks lines within x and y scale
+        , x //can be accessed via chart.xScale()
+        , y //can be accessed via chart.yScale()
+        , interpolate = "linear" // controls the line interpolation
+        , duration = 250
+        , dispatch = d3.dispatch('elementClick', 'elementMouseover', 'elementMouseout', 'renderEnd')
+        ;
+
+    scatter
+        .pointSize(16) // default size
+        .pointDomain([16,256]) //set to speed up calculation, needs to be unset if there is a custom size accessor
+    ;
+
+    //============================================================
+
+
+    //============================================================
+    // Private Variables
+    //------------------------------------------------------------
+
+    var x0, y0 //used to store previous scales
+        , renderWatch = nv.utils.renderWatch(dispatch, duration)
+        ;
+
+    //============================================================
+
+
+    function chart(selection) {
+        renderWatch.reset();
+        renderWatch.models(scatter);
+        selection.each(function(data) {
+            container = d3.select(this);
+            var availableWidth = nv.utils.availableWidth(width, container, margin),
+                availableHeight = nv.utils.availableHeight(height, container, margin);
+            nv.utils.initSVG(container);
+
+            // Setup Scales
+            x = scatter.xScale();
+            y = scatter.yScale();
+
+            x0 = x0 || x;
+            y0 = y0 || y;
+
+            // Setup containers and skeleton of chart
+            var wrap = container.selectAll('g.nv-wrap.nv-line').data([data]);
+            var wrapEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-wrap nv-line');
+            var defsEnter = wrapEnter.append('defs');
+            var gEnter = wrapEnter.append('g');
+            var g = wrap.select('g');
+
+            gEnter.append('g').attr('class', 'nv-groups');
+            gEnter.append('g').attr('class', 'nv-scatterWrap');
+
+            wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
+
+            scatter
+                .width(availableWidth)
+                .height(availableHeight);
+
+            var scatterWrap = wrap.select('.nv-scatterWrap');
+            scatterWrap.call(scatter);
+
+            defsEnter.append('clipPath')
+                .attr('id', 'nv-edge-clip-' + scatter.id())
+                .append('rect');
+
+            wrap.select('#nv-edge-clip-' + scatter.id() + ' rect')
+                .attr('width', availableWidth)
+                .attr('height', (availableHeight > 0) ? availableHeight : 0);
+
+            g   .attr('clip-path', clipEdge ? 'url(#nv-edge-clip-' + scatter.id() + ')' : '');
+            scatterWrap
+                .attr('clip-path', clipEdge ? 'url(#nv-edge-clip-' + scatter.id() + ')' : '');
+
+            var groups = wrap.select('.nv-groups').selectAll('.nv-group')
+                .data(function(d) { return d }, function(d) { return d.key });
+            groups.enter().append('g')
+                .style('stroke-opacity', 1e-6)
+                .style('stroke-width', function(d) { return d.strokeWidth || strokeWidth })
+                .style('fill-opacity', 1e-6);
+
+            groups.exit().remove();
+
+            groups
+                .attr('class', function(d,i) {
+                    return (d.classed || '') + ' nv-group nv-series-' + i;
+                })
+                .classed('hover', function(d) { return d.hover })
+                .style('fill', function(d,i){ return color(d, i) })
+                .style('stroke', function(d,i){ return color(d, i)});
+            groups.watchTransition(renderWatch, 'line: groups')
+                .style('stroke-opacity', 1)
+                .style('fill-opacity', function(d) { return d.fillOpacity || .5});
+
+            var areaPaths = groups.selectAll('path.nv-area')
+                .data(function(d) { return isArea(d) ? [d] : [] }); // this is done differently than lines because I need to check if series is an area
+            areaPaths.enter().append('path')
+                .attr('class', 'nv-area')
+                .attr('d', function(d) {
+                    return d3.svg.area()
+                        .interpolate(interpolate)
+                        .defined(defined)
+                        .x(function(d,i) { return nv.utils.NaNtoZero(x0(getX(d,i))) })
+                        .y0(function(d,i) { return nv.utils.NaNtoZero(y0(getY(d,i))) })
+                        .y1(function(d,i) { return y0( y.domain()[0] <= 0 ? y.domain()[1] >= 0 ? 0 : y.domain()[1] : y.domain()[0] ) })
+                        //.y1(function(d,i) { return y0(0) }) //assuming 0 is within y domain.. may need to tweak this
+                        .apply(this, [d.values])
+                });
+            groups.exit().selectAll('path.nv-area')
+                .remove();
+
+            areaPaths.watchTransition(renderWatch, 'line: areaPaths')
+                .attr('d', function(d) {
+                    return d3.svg.area()
+                        .interpolate(interpolate)
+                        .defined(defined)
+                        .x(function(d,i) { return nv.utils.NaNtoZero(x(getX(d,i))) })
+                        .y0(function(d,i) { return nv.utils.NaNtoZero(y(getY(d,i))) })
+                        .y1(function(d,i) { return y( y.domain()[0] <= 0 ? y.domain()[1] >= 0 ? 0 : y.domain()[1] : y.domain()[0] ) })
+                        //.y1(function(d,i) { return y0(0) }) //assuming 0 is within y domain.. may need to tweak this
+                        .apply(this, [d.values])
+                });
+
+            var linePaths = groups.selectAll('path.nv-line')
+                .data(function(d) { return [d.values] });
+
+            linePaths.enter().append('path')
+                .attr('class', 'nv-line')
+                .attr('d',
+                    d3.svg.line()
+                    .interpolate(interpolate)
+                    .defined(defined)
+                    .x(function(d,i) { return nv.utils.NaNtoZero(x0(getX(d,i))) })
+                    .y(function(d,i) { return nv.utils.NaNtoZero(y0(getY(d,i))) })
+            );
+
+            linePaths.watchTransition(renderWatch, 'line: linePaths')
+                .attr('d',
+                    d3.svg.line()
+                    .interpolate(interpolate)
+                    .defined(defined)
+                    .x(function(d,i) { return nv.utils.NaNtoZero(x(getX(d,i))) })
+                    .y(function(d,i) { return nv.utils.NaNtoZero(y(getY(d,i))) })
+            );
+
+            //store old scales for use in transitions on update
+            x0 = x.copy();
+            y0 = y.copy();
+        });
+        renderWatch.renderEnd('line immediate');
+        return chart;
+    }
+
+
+    //============================================================
+    // Expose Public Variables
+    //------------------------------------------------------------
+
+    chart.dispatch = dispatch;
+    chart.scatter = scatter;
+    // Pass through events
+    scatter.dispatch.on('elementClick', function(){ dispatch.elementClick.apply(this, arguments); });
+    scatter.dispatch.on('elementMouseover', function(){ dispatch.elementMouseover.apply(this, arguments); });
+    scatter.dispatch.on('elementMouseout', function(){ dispatch.elementMouseout.apply(this, arguments); });
+
+    chart.options = nv.utils.optionsFunc.bind(chart);
+
+    chart._options = Object.create({}, {
+        // simple options, just get/set the necessary values
+        width:      {get: function(){return width;}, set: function(_){width=_;}},
+        height:     {get: function(){return height;}, set: function(_){height=_;}},
+        defined: {get: function(){return defined;}, set: function(_){defined=_;}},
+        interpolate:      {get: function(){return interpolate;}, set: function(_){interpolate=_;}},
+        clipEdge:    {get: function(){return clipEdge;}, set: function(_){clipEdge=_;}},
+
+        // options that require extra logic in the setter
+        margin: {get: function(){return margin;}, set: function(_){
+            margin.top    = _.top    !== undefined ? _.top    : margin.top;
+            margin.right  = _.right  !== undefined ? _.right  : margin.right;
+            margin.bottom = _.bottom !== undefined ? _.bottom : margin.bottom;
+            margin.left   = _.left   !== undefined ? _.left   : margin.left;
+        }},
+        duration: {get: function(){return duration;}, set: function(_){
+            duration = _;
+            renderWatch.reset(duration);
+            scatter.duration(duration);
+        }},
+        isArea: {get: function(){return isArea;}, set: function(_){
+            isArea = d3.functor(_);
+        }},
+        x: {get: function(){return getX;}, set: function(_){
+            getX = _;
+            scatter.x(_);
+        }},
+        y: {get: function(){return getY;}, set: function(_){
+            getY = _;
+            scatter.y(_);
+        }},
+        color:  {get: function(){return color;}, set: function(_){
+            color = nv.utils.getColor(_);
+            scatter.color(color);
+        }}
+    });
+
+    nv.utils.inheritOptions(chart, scatter);
+    nv.utils.initOptions(chart);
+
+    return chart;
+};
+
+nv.models.discreteBarChart = function() {
+    "use strict";
+
+    //============================================================
+    // Public Variables with Default Settings
+    //------------------------------------------------------------
+
+    var discretebar = nv.models.discreteBar()
+        , xAxis = nv.models.axis()
+        , yAxis = nv.models.axis()
+	, legend = nv.models.legend()
+        , tooltip = nv.models.tooltip()
+        ;
+
+    var margin = {top: 15, right: 10, bottom: 50, left: 60}
+        , width = null
+        , height = null
+        , color = nv.utils.getColor()
+	, showLegend = false
+        , showXAxis = true
+        , showYAxis = true
+        , rightAlignYAxis = false
+        , staggerLabels = false
+        , wrapLabels = false
+        , rotateLabels = 0
+        , x
+        , y
+        , noData = null
+        , dispatch = d3.dispatch('beforeUpdate','renderEnd')
+        , duration = 250
+        ;
+
+    xAxis
+        .orient('bottom')
+        .showMaxMin(false)
+        .tickFormat(function(d) { return d })
+    ;
+    yAxis
+        .orient((rightAlignYAxis) ? 'right' : 'left')
+        .tickFormat(d3.format(',.1f'))
+    ;
+
+    tooltip
+        .duration(0)
+        .headerEnabled(false)
+        .valueFormatter(function(d, i) {
+            return yAxis.tickFormat()(d, i);
+        })
+        .keyFormatter(function(d, i) {
+            return xAxis.tickFormat()(d, i);
+        });
+
+    //============================================================
+    // Private Variables
+    //------------------------------------------------------------
+
+    var renderWatch = nv.utils.renderWatch(dispatch, duration);
+
+    function chart(selection) {
+        renderWatch.reset();
+        renderWatch.models(discretebar);
+        if (showXAxis) renderWatch.models(xAxis);
+        if (showYAxis) renderWatch.models(yAxis);
+
+        selection.each(function(data) {
+            var container = d3.select(this),
+                that = this;
+            nv.utils.initSVG(container);
+            var availableWidth = nv.utils.availableWidth(width, container, margin),
+                availableHeight = nv.utils.availableHeight(height, container, margin);
+
+            chart.update = function() {
+                dispatch.beforeUpdate();
+                container.transition().duration(duration).call(chart);
+            };
+            chart.container = this;
+
+            // Display No Data message if there's nothing to show.
+            if (!data || !data.length || !data.filter(function(d) { return d.values.length }).length) {
+                nv.utils.noData(chart, container);
+                return chart;
+            } else {
+                container.selectAll('.nv-noData').remove();
+            }
+
+            // Setup Scales
+            x = discretebar.xScale();
+            y = discretebar.yScale().clamp(true);
+
+            // Setup containers and skeleton of chart
+            var wrap = container.selectAll('g.nv-wrap.nv-discreteBarWithAxes').data([data]);
+            var gEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-wrap nv-discreteBarWithAxes').append('g');
+            var defsEnter = gEnter.append('defs');
+            var g = wrap.select('g');
+
+            gEnter.append('g').attr('class', 'nv-x nv-axis');
+            gEnter.append('g').attr('class', 'nv-y nv-axis')
+                .append('g').attr('class', 'nv-zeroLine')
+                .append('line');
+
+            gEnter.append('g').attr('class', 'nv-barsWrap');
+	    gEnter.append('g').attr('class', 'nv-legendWrap');
+
+            g.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
+
+            // Legend
+            if (!showLegend) {
+                g.select('.nv-legendWrap').selectAll('*').remove();
+            } else {
+                legend.width(availableWidth);
+
+                g.select('.nv-legendWrap')
+                    .datum(data)
+                    .call(legend);
+
+                if ( margin.top != legend.height()) {
+                    margin.top = legend.height();
+                    availableHeight = nv.utils.availableHeight(height, container, margin);
+                }
+
+                wrap.select('.nv-legendWrap')
+                    .attr('transform', 'translate(0,' + (-margin.top) +')')
+            }
+            
+            if (rightAlignYAxis) {
+                g.select(".nv-y.nv-axis")
+                    .attr("transform", "translate(" + availableWidth + ",0)");
+            }	    
+
+            // Main Chart Component(s)
+            discretebar
+                .width(availableWidth)
+                .height(availableHeight);
+
+            var barsWrap = g.select('.nv-barsWrap')
+                .datum(data.filter(function(d) { return !d.disabled }));
+
+            barsWrap.transition().call(discretebar);
+
+
+            defsEnter.append('clipPath')
+                .attr('id', 'nv-x-label-clip-' + discretebar.id())
+                .append('rect');
+
+            g.select('#nv-x-label-clip-' + discretebar.id() + ' rect')
+                .attr('width', x.rangeBand() * (staggerLabels ? 2 : 1))
+                .attr('height', 16)
+                .attr('x', -x.rangeBand() / (staggerLabels ? 1 : 2 ));
+
+            // Setup Axes
+            if (showXAxis) {
+                xAxis
+                    .scale(x)
+                    ._ticks( nv.utils.calcTicksX(availableWidth/100, data) )
+                    .tickSize(-availableHeight, 0);
+
+                g.select('.nv-x.nv-axis')
+                    .attr('transform', 'translate(0,' + (y.range()[0] + ((discretebar.showValues() && y.domain()[0] < 0) ? 16 : 0)) + ')');
+                g.select('.nv-x.nv-axis').call(xAxis);
+
+                var xTicks = g.select('.nv-x.nv-axis').selectAll('g');
+                if (staggerLabels) {
+                    xTicks
+                        .selectAll('text')
+                        .attr('transform', function(d,i,j) { return 'translate(0,' + (j % 2 == 0 ? '5' : '17') + ')' })
+                }
+
+                if (rotateLabels) {
+                    xTicks
+                        .selectAll('.tick text')
+                        .attr('transform', 'rotate(' + rotateLabels + ' 0,0)')
+                        .style('text-anchor', rotateLabels > 0 ? 'start' : 'end');
+                }
+
+                if (wrapLabels) {
+                    g.selectAll('.tick text')
+                        .call(nv.utils.wrapTicks, chart.xAxis.rangeBand())
+                }
+            }
+
+            if (showYAxis) {
+                yAxis
+                    .scale(y)
+                    ._ticks( nv.utils.calcTicksY(availableHeight/36, data) )
+                    .tickSize( -availableWidth, 0);
+
+                g.select('.nv-y.nv-axis').call(yAxis);
+            }
+
+            // Zero line
+            g.select(".nv-zeroLine line")
+                .attr("x1",0)
+                .attr("x2",(rightAlignYAxis) ? -availableWidth : availableWidth)
+                .attr("y1", y(0))
+                .attr("y2", y(0))
+            ;
+        });
+
+        renderWatch.renderEnd('discreteBar chart immediate');
+        return chart;
+    }
+
+    //============================================================
+    // Event Handling/Dispatching (out of chart's scope)
+    //------------------------------------------------------------
+
+    discretebar.dispatch.on('elementMouseover.tooltip', function(evt) {
+        evt['series'] = {
+            key: chart.x()(evt.data),
+            value: chart.y()(evt.data),
+            color: evt.color
+        };
+        tooltip.data(evt).hidden(false);
+    });
+
+    discretebar.dispatch.on('elementMouseout.tooltip', function(evt) {
+        tooltip.hidden(true);
+    });
+
+    discretebar.dispatch.on('elementMousemove.tooltip', function(evt) {
+        tooltip();
+    });
+
+    //============================================================
+    // Expose Public Variables
+    //------------------------------------------------------------
+
+    chart.dispatch = dispatch;
+    chart.discretebar = discretebar;
+    chart.legend = legend;
+    chart.xAxis = xAxis;
+    chart.yAxis = yAxis;
+    chart.tooltip = tooltip;
+
+    chart.options = nv.utils.optionsFunc.bind(chart);
+
+    chart._options = Object.create({}, {
+        // simple options, just get/set the necessary values
+        width:      {get: function(){return width;}, set: function(_){width=_;}},
+        height:     {get: function(){return height;}, set: function(_){height=_;}},
+	showLegend: {get: function(){return showLegend;}, set: function(_){showLegend=_;}},
+        staggerLabels: {get: function(){return staggerLabels;}, set: function(_){staggerLabels=_;}},
+        rotateLabels:  {get: function(){return rotateLabels;}, set: function(_){rotateLabels=_;}},
+        wrapLabels:  {get: function(){return wrapLabels;}, set: function(_){wrapLabels=!!_;}},
+        showXAxis: {get: function(){return showXAxis;}, set: function(_){showXAxis=_;}},
+        showYAxis: {get: function(){return showYAxis;}, set: function(_){showYAxis=_;}},
+        noData:    {get: function(){return noData;}, set: function(_){noData=_;}},
+
+        // options that require extra logic in the setter
+        margin: {get: function(){return margin;}, set: function(_){
+            margin.top    = _.top    !== undefined ? _.top    : margin.top;
+            margin.right  = _.right  !== undefined ? _.right  : margin.right;
+            margin.bottom = _.bottom !== undefined ? _.bottom : margin.bottom;
+            margin.left   = _.left   !== undefined ? _.left   : margin.left;
+        }},
+        duration: {get: function(){return duration;}, set: function(_){
+            duration = _;
+            renderWatch.reset(duration);
+            discretebar.duration(duration);
+            xAxis.duration(duration);
+            yAxis.duration(duration);
+        }},
+        color:  {get: function(){return color;}, set: function(_){
+            color = nv.utils.getColor(_);
+            discretebar.color(color);
+	    legend.color(color);
+        }},
+        rightAlignYAxis: {get: function(){return rightAlignYAxis;}, set: function(_){
+            rightAlignYAxis = _;
+            yAxis.orient( (_) ? 'right' : 'left');
+        }}
+    });
+
+    nv.utils.inheritOptions(chart, discretebar);
+    nv.utils.initOptions(chart);
+
+    return chart;
+}
+nv.models.pieChart = function() {
+    "use strict";
+
+    //============================================================
+    // Public Variables with Default Settings
+    //------------------------------------------------------------
+
+    var pie = nv.models.pie();
+    var legend = nv.models.legend();
+    var tooltip = nv.models.tooltip();
+
+    var margin = {top: 30, right: 20, bottom: 20, left: 20}
+        , width = null
+        , height = null
+        , showLegend = true
+        , legendPosition = "top"
+        , color = nv.utils.defaultColor()
+        , state = nv.utils.state()
+        , defaultState = null
+        , noData = null
+        , duration = 250
+        , dispatch = d3.dispatch('stateChange', 'changeState','renderEnd')
+        ;
+
+    tooltip
+        .duration(0)
+        .headerEnabled(false)
+        .valueFormatter(function(d, i) {
+            return pie.valueFormat()(d, i);
+        });
+
+    //============================================================
+    // Private Variables
+    //------------------------------------------------------------
+
+    var renderWatch = nv.utils.renderWatch(dispatch);
+
+    var stateGetter = function(data) {
+        return function(){
+            return {
+                active: data.map(function(d) { return !d.disabled })
+            };
+        }
+    };
+
+    var stateSetter = function(data) {
+        return function(state) {
+            if (state.active !== undefined) {
+                data.forEach(function (series, i) {
+                    series.disabled = !state.active[i];
+                });
+            }
+        }
+    };
+
+    //============================================================
+    // Chart function
+    //------------------------------------------------------------
+
+    function chart(selection) {
+        renderWatch.reset();
+        renderWatch.models(pie);
+
+        selection.each(function(data) {
+            var container = d3.select(this);
+            nv.utils.initSVG(container);
+
+            var that = this;
+            var availableWidth = nv.utils.availableWidth(width, container, margin),
+                availableHeight = nv.utils.availableHeight(height, container, margin);
+
+            chart.update = function() { container.transition().call(chart); };
+            chart.container = this;
+
+            state.setter(stateSetter(data), chart.update)
+                .getter(stateGetter(data))
+                .update();
+
+            //set state.disabled
+            state.disabled = data.map(function(d) { return !!d.disabled });
+
+            if (!defaultState) {
+                var key;
+                defaultState = {};
+                for (key in state) {
+                    if (state[key] instanceof Array)
+                        defaultState[key] = state[key].slice(0);
+                    else
+                        defaultState[key] = state[key];
+                }
+            }
+
+            // Display No Data message if there's nothing to show.
+            if (!data || !data.length) {
+                nv.utils.noData(chart, container);
+                return chart;
+            } else {
+                container.selectAll('.nv-noData').remove();
+            }
+
+            // Setup containers and skeleton of chart
+            var wrap = container.selectAll('g.nv-wrap.nv-pieChart').data([data]);
+            var gEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-wrap nv-pieChart').append('g');
+            var g = wrap.select('g');
+
+            gEnter.append('g').attr('class', 'nv-pieWrap');
+            gEnter.append('g').attr('class', 'nv-legendWrap');
+
+            // Legend
+            if (!showLegend) {
+                g.select('.nv-legendWrap').selectAll('*').remove();
+            } else {
+                if (legendPosition === "top") {
+                    legend.width( availableWidth ).key(pie.x());
+
+                    wrap.select('.nv-legendWrap')
+                        .datum(data)
+                        .call(legend);
+
+                    if ( margin.top != legend.height()) {
+                        margin.top = legend.height();
+                        availableHeight = nv.utils.availableHeight(height, container, margin);
+                    }
+
+                    wrap.select('.nv-legendWrap')
+                        .attr('transform', 'translate(0,' + (-margin.top) +')');
+                } else if (legendPosition === "right") {
+                    var legendWidth = nv.models.legend().width();
+                    if (availableWidth / 2 < legendWidth) {
+                        legendWidth = (availableWidth / 2)
+                    }
+                    legend.height(availableHeight).key(pie.x());
+                    legend.width(legendWidth);
+                    availableWidth -= legend.width();
+
+                    wrap.select('.nv-legendWrap')
+                        .datum(data)
+                        .call(legend)
+                        .attr('transform', 'translate(' + (availableWidth) +',0)');
+                }
+            }
+            wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
+
+            // Main Chart Component(s)
+            pie.width(availableWidth).height(availableHeight);
+            var pieWrap = g.select('.nv-pieWrap').datum([data]);
+            d3.transition(pieWrap).call(pie);
+
+            //============================================================
+            // Event Handling/Dispatching (in chart's scope)
+            //------------------------------------------------------------
+
+            legend.dispatch.on('stateChange', function(newState) {
+                for (var key in newState) {
+                    state[key] = newState[key];
+                }
+                dispatch.stateChange(state);
+                chart.update();
+            });
+
+            // Update chart from a state object passed to event handler
+            dispatch.on('changeState', function(e) {
+                if (typeof e.disabled !== 'undefined') {
+                    data.forEach(function(series,i) {
+                        series.disabled = e.disabled[i];
+                    });
+                    state.disabled = e.disabled;
+                }
+                chart.update();
+            });
+        });
+
+        renderWatch.renderEnd('pieChart immediate');
+        return chart;
+    }
+
+    //============================================================
+    // Event Handling/Dispatching (out of chart's scope)
+    //------------------------------------------------------------
+
+    pie.dispatch.on('elementMouseover.tooltip', function(evt) {
+        evt['series'] = {
+            key: chart.x()(evt.data),
+            value: chart.y()(evt.data),
+            color: evt.color
+        };
+        tooltip.data(evt).hidden(false);
+    });
+
+    pie.dispatch.on('elementMouseout.tooltip', function(evt) {
+        tooltip.hidden(true);
+    });
+
+    pie.dispatch.on('elementMousemove.tooltip', function(evt) {
+        tooltip();
+    });
+
+    //============================================================
+    // Expose Public Variables
+    //------------------------------------------------------------
+
+    // expose chart's sub-components
+    chart.legend = legend;
+    chart.dispatch = dispatch;
+    chart.pie = pie;
+    chart.tooltip = tooltip;
+    chart.options = nv.utils.optionsFunc.bind(chart);
+
+    // use Object get/set functionality to map between vars and chart functions
+    chart._options = Object.create({}, {
+        // simple options, just get/set the necessary values
+        width:      {get: function(){return width;}, set: function(_){width=_;}},
+        height:     {get: function(){return height;}, set: function(_){height=_;}},
+        noData:         {get: function(){return noData;},         set: function(_){noData=_;}},
+        showLegend:     {get: function(){return showLegend;},     set: function(_){showLegend=_;}},
+        legendPosition: {get: function(){return legendPosition;}, set: function(_){legendPosition=_;}},
+        defaultState:   {get: function(){return defaultState;},   set: function(_){defaultState=_;}},
+
+        // options that require extra logic in the setter
+        color: {get: function(){return color;}, set: function(_){
+            color = _;
+            legend.color(color);
+            pie.color(color);
+        }},
+        duration: {get: function(){return duration;}, set: function(_){
+            duration = _;
+            renderWatch.reset(duration);
+        }},
+        margin: {get: function(){return margin;}, set: function(_){
+            margin.top    = _.top    !== undefined ? _.top    : margin.top;
+            margin.right  = _.right  !== undefined ? _.right  : margin.right;
+            margin.bottom = _.bottom !== undefined ? _.bottom : margin.bottom;
+            margin.left   = _.left   !== undefined ? _.left   : margin.left;
+        }}
+    });
+    nv.utils.inheritOptions(chart, pie);
+    nv.utils.initOptions(chart);
+    return chart;
+};
+//TODO: consider deprecating by adding necessary features to multiBar model
+nv.models.discreteBar = function() {
+    "use strict";
+
+    //============================================================
+    // Public Variables with Default Settings
+    //------------------------------------------------------------
+
+    var margin = {top: 0, right: 0, bottom: 0, left: 0}
+        , width = 960
+        , height = 500
+        , id = Math.floor(Math.random() * 10000) //Create semi-unique ID in case user doesn't select one
+        , container
+        , x = d3.scale.ordinal()
+        , y = d3.scale.linear()
+        , getX = function(d) { return d.x }
+        , getY = function(d) { return d.y }
+        , forceY = [0] // 0 is forced by default.. this makes sense for the majority of bar graphs... user can always do chart.forceY([]) to remove
+        , color = nv.utils.defaultColor()
+        , showValues = false
+        , valueFormat = d3.format(',.2f')
+        , xDomain
+        , yDomain
+        , xRange
+        , yRange
+        , dispatch = d3.dispatch('chartClick', 'elementClick', 'elementDblClick', 'elementMouseover', 'elementMouseout', 'elementMousemove', 'renderEnd')
+        , rectClass = 'discreteBar'
+        , duration = 250
+        ;
+
+    //============================================================
+    // Private Variables
+    //------------------------------------------------------------
+
+    var x0, y0;
+    var renderWatch = nv.utils.renderWatch(dispatch, duration);
+
+    function chart(selection) {
+        renderWatch.reset();
+        selection.each(function(data) {
+            var availableWidth = width - margin.left - margin.right,
+                availableHeight = height - margin.top - margin.bottom;
+
+            container = d3.select(this);
+            nv.utils.initSVG(container);
+
+            //add series index to each data point for reference
+            data.forEach(function(series, i) {
+                series.values.forEach(function(point) {
+                    point.series = i;
+                });
+            });
+
+            // Setup Scales
+            // remap and flatten the data for use in calculating the scales' domains
+            var seriesData = (xDomain && yDomain) ? [] : // if we know xDomain and yDomain, no need to calculate
+                data.map(function(d) {
+                    return d.values.map(function(d,i) {
+                        return { x: getX(d,i), y: getY(d,i), y0: d.y0 }
+                    })
+                });
+
+            x   .domain(xDomain || d3.merge(seriesData).map(function(d) { return d.x }))
+                .rangeBands(xRange || [0, availableWidth], .1);
+            y   .domain(yDomain || d3.extent(d3.merge(seriesData).map(function(d) { return d.y }).concat(forceY)));
+
+            // If showValues, pad the Y axis range to account for label height
+            if (showValues) y.range(yRange || [availableHeight - (y.domain()[0] < 0 ? 12 : 0), y.domain()[1] > 0 ? 12 : 0]);
+            else y.range(yRange || [availableHeight, 0]);
+
+            //store old scales if they exist
+            x0 = x0 || x;
+            y0 = y0 || y.copy().range([y(0),y(0)]);
+
+            // Setup containers and skeleton of chart
+            var wrap = container.selectAll('g.nv-wrap.nv-discretebar').data([data]);
+            var wrapEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-wrap nv-discretebar');
+            var gEnter = wrapEnter.append('g');
+            var g = wrap.select('g');
+
+            gEnter.append('g').attr('class', 'nv-groups');
+            wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
+
+            //TODO: by definition, the discrete bar should not have multiple groups, will modify/remove later
+            var groups = wrap.select('.nv-groups').selectAll('.nv-group')
+                .data(function(d) { return d }, function(d) { return d.key });
+            groups.enter().append('g')
+                .style('stroke-opacity', 1e-6)
+                .style('fill-opacity', 1e-6);
+            groups.exit()
+                .watchTransition(renderWatch, 'discreteBar: exit groups')
+                .style('stroke-opacity', 1e-6)
+                .style('fill-opacity', 1e-6)
+                .remove();
+            groups
+                .attr('class', function(d,i) { return 'nv-group nv-series-' + i })
+                .classed('hover', function(d) { return d.hover });
+            groups
+                .watchTransition(renderWatch, 'discreteBar: groups')
+                .style('stroke-opacity', 1)
+                .style('fill-opacity', .75);
+
+            var bars = groups.selectAll('g.nv-bar')
+                .data(function(d) { return d.values });
+            bars.exit().remove();
+
+            var barsEnter = bars.enter().append('g')
+                .attr('transform', function(d,i,j) {
+                    return 'translate(' + (x(getX(d,i)) + x.rangeBand() * .05 ) + ', ' + y(0) + ')'
+                })
+                .on('mouseover', function(d,i) { //TODO: figure out why j works above, but not here
+                    d3.select(this).classed('hover', true);
+                    dispatch.elementMouseover({
+                        data: d,
+                        index: i,
+                        color: d3.select(this).style("fill")
+                    });
+                })
+                .on('mouseout', function(d,i) {
+                    d3.select(this).classed('hover', false);
+                    dispatch.elementMouseout({
+                        data: d,
+                        index: i,
+                        color: d3.select(this).style("fill")
+                    });
+                })
+                .on('mousemove', function(d,i) {
+                    dispatch.elementMousemove({
+                        data: d,
+                        index: i,
+                        color: d3.select(this).style("fill")
+                    });
+                })
+                .on('click', function(d,i) {
+                    var element = this;
+                    dispatch.elementClick({
+                        data: d,
+                        index: i,
+                        color: d3.select(this).style("fill"),
+                        event: d3.event,
+                        element: element
+                    });
+                    d3.event.stopPropagation();
+                })
+                .on('dblclick', function(d,i) {
+                    dispatch.elementDblClick({
+                        data: d,
+                        index: i,
+                        color: d3.select(this).style("fill")
+                    });
+                    d3.event.stopPropagation();
+                });
+
+            barsEnter.append('rect')
+                .attr('height', 0)
+                .attr('width', x.rangeBand() * .9 / data.length )
+
+            if (showValues) {
+                barsEnter.append('text')
+                    .attr('text-anchor', 'middle')
+                ;
+
+                bars.select('text')
+                    .text(function(d,i) { return valueFormat(getY(d,i)) })
+                    .watchTransition(renderWatch, 'discreteBar: bars text')
+                    .attr('x', x.rangeBand() * .9 / 2)
+                    .attr('y', function(d,i) { return getY(d,i) < 0 ? y(getY(d,i)) - y(0) + 12 : -4 })
+
+                ;
+            } else {
+                bars.selectAll('text').remove();
+            }
+
+            bars
+                .attr('class', function(d,i) { return getY(d,i) < 0 ? 'nv-bar negative' : 'nv-bar positive' })
+                .style('fill', function(d,i) { return d.color || color(d,i) })
+                .style('stroke', function(d,i) { return d.color || color(d,i) })
+                .select('rect')
+                .attr('class', rectClass)
+                .watchTransition(renderWatch, 'discreteBar: bars rect')
+                .attr('width', x.rangeBand() * .9 / data.length);
+            bars.watchTransition(renderWatch, 'discreteBar: bars')
+                //.delay(function(d,i) { return i * 1200 / data[0].values.length })
+                .attr('transform', function(d,i) {
+                    var left = x(getX(d,i)) + x.rangeBand() * .05,
+                        top = getY(d,i) < 0 ?
+                            y(0) :
+                                y(0) - y(getY(d,i)) < 1 ?
+                            y(0) - 1 : //make 1 px positive bars show up above y=0
+                            y(getY(d,i));
+
+                    return 'translate(' + left + ', ' + top + ')'
+                })
+                .select('rect')
+                .attr('height', function(d,i) {
+                    return  Math.max(Math.abs(y(getY(d,i)) - y(0)), 1)
+                });
+
+
+            //store old scales for use in transitions on update
+            x0 = x.copy();
+            y0 = y.copy();
+
+        });
+
+        renderWatch.renderEnd('discreteBar immediate');
+        return chart;
+    }
+
+    //============================================================
+    // Expose Public Variables
+    //------------------------------------------------------------
+
+    chart.dispatch = dispatch;
+    chart.options = nv.utils.optionsFunc.bind(chart);
+
+    chart._options = Object.create({}, {
+        // simple options, just get/set the necessary values
+        width:   {get: function(){return width;}, set: function(_){width=_;}},
+        height:  {get: function(){return height;}, set: function(_){height=_;}},
+        forceY:  {get: function(){return forceY;}, set: function(_){forceY=_;}},
+        showValues: {get: function(){return showValues;}, set: function(_){showValues=_;}},
+        x:       {get: function(){return getX;}, set: function(_){getX=_;}},
+        y:       {get: function(){return getY;}, set: function(_){getY=_;}},
+        xScale:  {get: function(){return x;}, set: function(_){x=_;}},
+        yScale:  {get: function(){return y;}, set: function(_){y=_;}},
+        xDomain: {get: function(){return xDomain;}, set: function(_){xDomain=_;}},
+        yDomain: {get: function(){return yDomain;}, set: function(_){yDomain=_;}},
+        xRange:  {get: function(){return xRange;}, set: function(_){xRange=_;}},
+        yRange:  {get: function(){return yRange;}, set: function(_){yRange=_;}},
+        valueFormat:    {get: function(){return valueFormat;}, set: function(_){valueFormat=_;}},
+        id:          {get: function(){return id;}, set: function(_){id=_;}},
+        rectClass: {get: function(){return rectClass;}, set: function(_){rectClass=_;}},
+
+        // options that require extra logic in the setter
+        margin: {get: function(){return margin;}, set: function(_){
+            margin.top    = _.top    !== undefined ? _.top    : margin.top;
+            margin.right  = _.right  !== undefined ? _.right  : margin.right;
+            margin.bottom = _.bottom !== undefined ? _.bottom : margin.bottom;
+            margin.left   = _.left   !== undefined ? _.left   : margin.left;
+        }},
+        color:  {get: function(){return color;}, set: function(_){
+            color = nv.utils.getColor(_);
+        }},
+        duration: {get: function(){return duration;}, set: function(_){
+            duration = _;
+            renderWatch.reset(duration);
+        }}
+    });
+
+    nv.utils.initOptions(chart);
+
+    return chart;
+};
+nv.models.multiBarChart = function() {
+    "use strict";
+
+    //============================================================
+    // Public Variables with Default Settings
+    //------------------------------------------------------------
+
+    var multibar = nv.models.multiBar()
+        , xAxis = nv.models.axis()
+        , yAxis = nv.models.axis()
+        , interactiveLayer = nv.interactiveGuideline()
+        , legend = nv.models.legend()
+        , controls = nv.models.legend()
+        , tooltip = nv.models.tooltip()
+        ;
+
+    var margin = {top: 30, right: 20, bottom: 50, left: 60}
+        , width = null
+        , height = null
+        , color = nv.utils.defaultColor()
+        , showControls = true
+        , controlLabels = {}
+        , showLegend = true
+        , showXAxis = true
+        , showYAxis = true
+        , rightAlignYAxis = false
+        , reduceXTicks = true // if false a tick will show for every data point
+        , staggerLabels = false
+        , wrapLabels = false
+        , rotateLabels = 0
+        , x //can be accessed via chart.xScale()
+        , y //can be accessed via chart.yScale()
+        , state = nv.utils.state()
+        , defaultState = null
+        , noData = null
+        , dispatch = d3.dispatch('stateChange', 'changeState', 'renderEnd')
+        , controlWidth = function() { return showControls ? 180 : 0 }
+        , duration = 250
+        , useInteractiveGuideline = false
+        ;
+
+    state.stacked = false // DEPRECATED Maintained for backward compatibility
+
+    multibar.stacked(false);
+    xAxis
+        .orient('bottom')
+        .tickPadding(7)
+        .showMaxMin(false)
+        .tickFormat(function(d) { return d })
+    ;
+    yAxis
+        .orient((rightAlignYAxis) ? 'right' : 'left')
+        .tickFormat(d3.format(',.1f'))
+    ;
+
+    tooltip
+        .duration(0)
+        .valueFormatter(function(d, i) {
+            return yAxis.tickFormat()(d, i);
+        })
+        .headerFormatter(function(d, i) {
+            return xAxis.tickFormat()(d, i);
+        });
+
+    controls.updateState(false);
+
+    //============================================================
+    // Private Variables
+    //------------------------------------------------------------
+
+    var renderWatch = nv.utils.renderWatch(dispatch);
+    var stacked = false;
+
+    var stateGetter = function(data) {
+        return function(){
+            return {
+                active: data.map(function(d) { return !d.disabled }),
+                stacked: stacked
+            };
+        }
+    };
+
+    var stateSetter = function(data) {
+        return function(state) {
+            if (state.stacked !== undefined)
+                stacked = state.stacked;
+            if (state.active !== undefined)
+                data.forEach(function(series,i) {
+                    series.disabled = !state.active[i];
+                });
+        }
+    };
+
+    function chart(selection) {
+        renderWatch.reset();
+        renderWatch.models(multibar);
+        if (showXAxis) renderWatch.models(xAxis);
+        if (showYAxis) renderWatch.models(yAxis);
+
+        selection.each(function(data) {
+            var container = d3.select(this),
+                that = this;
+            nv.utils.initSVG(container);
+            var availableWidth = nv.utils.availableWidth(width, container, margin),
+                availableHeight = nv.utils.availableHeight(height, container, margin);
+
+            chart.update = function() {
+                if (duration === 0)
+                    container.call(chart);
+                else
+                    container.transition()
+                        .duration(duration)
+                        .call(chart);
+            };
+            chart.container = this;
+
+            state
+                .setter(stateSetter(data), chart.update)
+                .getter(stateGetter(data))
+                .update();
+
+            // DEPRECATED set state.disableddisabled
+            state.disabled = data.map(function(d) { return !!d.disabled });
+
+            if (!defaultState) {
+                var key;
+                defaultState = {};
+                for (key in state) {
+                    if (state[key] instanceof Array)
+                        defaultState[key] = state[key].slice(0);
+                    else
+                        defaultState[key] = state[key];
+                }
+            }
+
+            // Display noData message if there's nothing to show.
+            if (!data || !data.length || !data.filter(function(d) { return d.values.length }).length) {
+                nv.utils.noData(chart, container)
+                return chart;
+            } else {
+                container.selectAll('.nv-noData').remove();
+            }
+
+            // Setup Scales
+            x = multibar.xScale();
+            y = multibar.yScale();
+
+            // Setup containers and skeleton of chart
+            var wrap = container.selectAll('g.nv-wrap.nv-multiBarWithLegend').data([data]);
+            var gEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-wrap nv-multiBarWithLegend').append('g');
+            var g = wrap.select('g');
+
+            gEnter.append('g').attr('class', 'nv-x nv-axis');
+            gEnter.append('g').attr('class', 'nv-y nv-axis');
+            gEnter.append('g').attr('class', 'nv-barsWrap');
+            gEnter.append('g').attr('class', 'nv-legendWrap');
+            gEnter.append('g').attr('class', 'nv-controlsWrap');
+            gEnter.append('g').attr('class', 'nv-interactive');
+
+            // Legend
+            if (!showLegend) {
+                g.select('.nv-legendWrap').selectAll('*').remove();
+            } else {
+                legend.width(availableWidth - controlWidth());
+
+                g.select('.nv-legendWrap')
+                    .datum(data)
+                    .call(legend);
+
+                if ( margin.top != legend.height()) {
+                    margin.top = legend.height();
+                    availableHeight = nv.utils.availableHeight(height, container, margin);
+                }
+
+                g.select('.nv-legendWrap')
+                    .attr('transform', 'translate(' + controlWidth() + ',' + (-margin.top) +')');
+            }
+
+            // Controls
+            if (!showControls) {
+                 g.select('.nv-controlsWrap').selectAll('*').remove();
+            } else {
+                var controlsData = [
+                    { key: controlLabels.grouped || 'Grouped', disabled: multibar.stacked() },
+                    { key: controlLabels.stacked || 'Stacked', disabled: !multibar.stacked() }
+                ];
+
+                controls.width(controlWidth()).color(['#444', '#444', '#444']);
+                g.select('.nv-controlsWrap')
+                    .datum(controlsData)
+                    .attr('transform', 'translate(0,' + (-margin.top) +')')
+                    .call(controls);
+            }
+
+            wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
+            if (rightAlignYAxis) {
+                g.select(".nv-y.nv-axis")
+                    .attr("transform", "translate(" + availableWidth + ",0)");
+            }
+
+            // Main Chart Component(s)
+            multibar
+                .disabled(data.map(function(series) { return series.disabled }))
+                .width(availableWidth)
+                .height(availableHeight)
+                .color(data.map(function(d,i) {
+                    return d.color || color(d, i);
+                }).filter(function(d,i) { return !data[i].disabled }));
+
+
+            var barsWrap = g.select('.nv-barsWrap')
+                .datum(data.filter(function(d) { return !d.disabled }));
+
+            barsWrap.call(multibar);
+
+            // Setup Axes
+            if (showXAxis) {
+                xAxis
+                    .scale(x)
+                    ._ticks( nv.utils.calcTicksX(availableWidth/100, data) )
+                    .tickSize(-availableHeight, 0);
+
+                g.select('.nv-x.nv-axis')
+                    .attr('transform', 'translate(0,' + y.range()[0] + ')');
+                g.select('.nv-x.nv-axis')
+                    .call(xAxis);
+
+                var xTicks = g.select('.nv-x.nv-axis > g').selectAll('g');
+
+                xTicks
+                    .selectAll('line, text')
+                    .style('opacity', 1)
+
+                if (staggerLabels) {
+                    var getTranslate = function(x,y) {
+                        return "translate(" + x + "," + y + ")";
+                    };
+
+                    var staggerUp = 5, staggerDown = 17;  //pixels to stagger by
+                    // Issue #140
+                    xTicks
+                        .selectAll("text")
+                        .attr('transform', function(d,i,j) {
+                            return  getTranslate(0, (j % 2 == 0 ? staggerUp : staggerDown));
+                        });
+
+                    var totalInBetweenTicks = d3.selectAll(".nv-x.nv-axis .nv-wrap g g text")[0].length;
+                    g.selectAll(".nv-x.nv-axis .nv-axisMaxMin text")
+                        .attr("transform", function(d,i) {
+                            return getTranslate(0, (i === 0 || totalInBetweenTicks % 2 !== 0) ? staggerDown : staggerUp);
+                        });
+                }
+
+                if (wrapLabels) {
+                    g.selectAll('.tick text')
+                        .call(nv.utils.wrapTicks, chart.xAxis.rangeBand())
+                }
+
+                if (reduceXTicks)
+                    xTicks
+                        .filter(function(d,i) {
+                            return i % Math.ceil(data[0].values.length / (availableWidth / 100)) !== 0;
+                        })
+                        .selectAll('text, line')
+                        .style('opacity', 0);
+
+                if(rotateLabels)
+                    xTicks
+                        .selectAll('.tick text')
+                        .attr('transform', 'rotate(' + rotateLabels + ' 0,0)')
+                        .style('text-anchor', rotateLabels > 0 ? 'start' : 'end');
+
+                g.select('.nv-x.nv-axis').selectAll('g.nv-axisMaxMin text')
+                    .style('opacity', 1);
+            }
+
+            if (showYAxis) {
+                yAxis
+                    .scale(y)
+                    ._ticks( nv.utils.calcTicksY(availableHeight/36, data) )
+                    .tickSize( -availableWidth, 0);
+
+                g.select('.nv-y.nv-axis')
+                    .call(yAxis);
+            }
+
+            //Set up interactive layer
+            if (useInteractiveGuideline) {
+                interactiveLayer
+                    .width(availableWidth)
+                    .height(availableHeight)
+                    .margin({left:margin.left, top:margin.top})
+                    .svgContainer(container)
+                    .xScale(x);
+                wrap.select(".nv-interactive").call(interactiveLayer);
+            }
+
+            //============================================================
+            // Event Handling/Dispatching (in chart's scope)
+            //------------------------------------------------------------
+
+            legend.dispatch.on('stateChange', function(newState) {
+                for (var key in newState)
+                    state[key] = newState[key];
+                dispatch.stateChange(state);
+                chart.update();
+            });
+
+            controls.dispatch.on('legendClick', function(d,i) {
+                if (!d.disabled) return;
+                controlsData = controlsData.map(function(s) {
+                    s.disabled = true;
+                    return s;
+                });
+                d.disabled = false;
+
+                switch (d.key) {
+                    case 'Grouped':
+                    case controlLabels.grouped:
+                        multibar.stacked(false);
+                        break;
+                    case 'Stacked':
+                    case controlLabels.stacked:
+                        multibar.stacked(true);
+                        break;
+                }
+
+                state.stacked = multibar.stacked();
+                dispatch.stateChange(state);
+                chart.update();
+            });
+
+            // Update chart from a state object passed to event handler
+            dispatch.on('changeState', function(e) {
+                if (typeof e.disabled !== 'undefined') {
+                    data.forEach(function(series,i) {
+                        series.disabled = e.disabled[i];
+                    });
+                    state.disabled = e.disabled;
+                }
+                if (typeof e.stacked !== 'undefined') {
+                    multibar.stacked(e.stacked);
+                    state.stacked = e.stacked;
+                    stacked = e.stacked;
+                }
+                chart.update();
+            });
+
+            if (useInteractiveGuideline) {
+                interactiveLayer.dispatch.on('elementMousemove', function(e) {
+                    if (e.pointXValue == undefined) return;
+
+                    var singlePoint, pointIndex, pointXLocation, xValue, allData = [];
+                    data
+                        .filter(function(series, i) {
+                            series.seriesIndex = i;
+                            return !series.disabled;
+                        })
+                        .forEach(function(series,i) {
+                            pointIndex = x.domain().indexOf(e.pointXValue)
+
+                            var point = series.values[pointIndex];
+                            if (point === undefined) return;
+
+                            xValue = point.x;
+                            if (singlePoint === undefined) singlePoint = point;
+                            if (pointXLocation === undefined) pointXLocation = e.mouseX
+                            allData.push({
+                                key: series.key,
+                                value: chart.y()(point, pointIndex),
+                                color: color(series,series.seriesIndex),
+                                data: series.values[pointIndex]
+                            });
+                        });
+
+                    interactiveLayer.tooltip
+                        .chartContainer(that.parentNode)
+                        .data({
+                            value: xValue,
+                            index: pointIndex,
+                            series: allData
+                        })();
+
+                    interactiveLayer.renderGuideLine(pointXLocation);
+                });
+
+                interactiveLayer.dispatch.on("elementMouseout",function(e) {
+                    interactiveLayer.tooltip.hidden(true);
+                });
+            }
+            else {
+                multibar.dispatch.on('elementMouseover.tooltip', function(evt) {
+                    evt.value = chart.x()(evt.data);
+                    evt['series'] = {
+                        key: evt.data.key,
+                        value: chart.y()(evt.data),
+                        color: evt.color
+                    };
+                    tooltip.data(evt).hidden(false);
+                });
+
+                multibar.dispatch.on('elementMouseout.tooltip', function(evt) {
+                    tooltip.hidden(true);
+                });
+
+                multibar.dispatch.on('elementMousemove.tooltip', function(evt) {
+                    tooltip();
+                });
+            }
+        });
+
+        renderWatch.renderEnd('multibarchart immediate');
+        return chart;
+    }
+
+    //============================================================
+    // Expose Public Variables
+    //------------------------------------------------------------
+
+    // expose chart's sub-components
+    chart.dispatch = dispatch;
+    chart.multibar = multibar;
+    chart.legend = legend;
+    chart.controls = controls;
+    chart.xAxis = xAxis;
+    chart.yAxis = yAxis;
+    chart.state = state;
+    chart.tooltip = tooltip;
+    chart.interactiveLayer = interactiveLayer;
+
+    chart.options = nv.utils.optionsFunc.bind(chart);
+
+    chart._options = Object.create({}, {
+        // simple options, just get/set the necessary values
+        width:      {get: function(){return width;}, set: function(_){width=_;}},
+        height:     {get: function(){return height;}, set: function(_){height=_;}},
+        showLegend: {get: function(){return showLegend;}, set: function(_){showLegend=_;}},
+        showControls: {get: function(){return showControls;}, set: function(_){showControls=_;}},
+        controlLabels: {get: function(){return controlLabels;}, set: function(_){controlLabels=_;}},
+        showXAxis:      {get: function(){return showXAxis;}, set: function(_){showXAxis=_;}},
+        showYAxis:    {get: function(){return showYAxis;}, set: function(_){showYAxis=_;}},
+        defaultState:    {get: function(){return defaultState;}, set: function(_){defaultState=_;}},
+        noData:    {get: function(){return noData;}, set: function(_){noData=_;}},
+        reduceXTicks:    {get: function(){return reduceXTicks;}, set: function(_){reduceXTicks=_;}},
+        rotateLabels:    {get: function(){return rotateLabels;}, set: function(_){rotateLabels=_;}},
+        staggerLabels:    {get: function(){return staggerLabels;}, set: function(_){staggerLabels=_;}},
+        wrapLabels:   {get: function(){return wrapLabels;}, set: function(_){wrapLabels=!!_;}},
+
+        // options that require extra logic in the setter
+        margin: {get: function(){return margin;}, set: function(_){
+            margin.top    = _.top    !== undefined ? _.top    : margin.top;
+            margin.right  = _.right  !== undefined ? _.right  : margin.right;
+            margin.bottom = _.bottom !== undefined ? _.bottom : margin.bottom;
+            margin.left   = _.left   !== undefined ? _.left   : margin.left;
+        }},
+        duration: {get: function(){return duration;}, set: function(_){
+            duration = _;
+            multibar.duration(duration);
+            xAxis.duration(duration);
+            yAxis.duration(duration);
+            renderWatch.reset(duration);
+        }},
+        color:  {get: function(){return color;}, set: function(_){
+            color = nv.utils.getColor(_);
+            legend.color(color);
+        }},
+        rightAlignYAxis: {get: function(){return rightAlignYAxis;}, set: function(_){
+            rightAlignYAxis = _;
+            yAxis.orient( rightAlignYAxis ? 'right' : 'left');
+        }},
+        useInteractiveGuideline: {get: function(){return useInteractiveGuideline;}, set: function(_){
+            useInteractiveGuideline = _;
+        }},
+        barColor:  {get: function(){return multibar.barColor;}, set: function(_){
+            multibar.barColor(_);
+            legend.color(function(d,i) {return d3.rgb('#ccc').darker(i * 1.5).toString();})
+        }}
+    });
+
+    nv.utils.inheritOptions(chart, multibar);
+    nv.utils.initOptions(chart);
+
+    return chart;
+};
+nv.models.pie = function() {
+    "use strict";
+
+    //============================================================
+    // Public Variables with Default Settings
+    //------------------------------------------------------------
+
+    var margin = {top: 0, right: 0, bottom: 0, left: 0}
+        , width = 500
+        , height = 500
+        , getX = function(d) { return d.x }
+        , getY = function(d) { return d.y }
+        , id = Math.floor(Math.random() * 10000) //Create semi-unique ID in case user doesn't select one
+        , container = null
+        , color = nv.utils.defaultColor()
+        , valueFormat = d3.format(',.2f')
+        , showLabels = true
+        , labelsOutside = false
+        , labelType = "key"
+        , labelThreshold = .02 //if slice percentage is under this, don't show label
+        , donut = false
+        , title = false
+        , growOnHover = true
+        , titleOffset = 0
+        , labelSunbeamLayout = false
+        , startAngle = false
+        , padAngle = false
+        , endAngle = false
+        , cornerRadius = 0
+        , donutRatio = 0.5
+        , arcsRadius = []
+        , dispatch = d3.dispatch('chartClick', 'elementClick', 'elementDblClick', 'elementMouseover', 'elementMouseout', 'elementMousemove', 'renderEnd')
+        ;
+
+    var arcs = [];
+    var arcsOver = [];
+
+    //============================================================
+    // chart function
+    //------------------------------------------------------------
+
+    var renderWatch = nv.utils.renderWatch(dispatch);
+
+    function chart(selection) {
+        renderWatch.reset();
+        selection.each(function(data) {
+            var availableWidth = width - margin.left - margin.right
+                , availableHeight = height - margin.top - margin.bottom
+                , radius = Math.min(availableWidth, availableHeight) / 2
+                , arcsRadiusOuter = []
+                , arcsRadiusInner = []
+                ;
+
+            container = d3.select(this)
+            if (arcsRadius.length === 0) {
+                var outer = radius - radius / 5;
+                var inner = donutRatio * radius;
+                for (var i = 0; i < data[0].length; i++) {
+                    arcsRadiusOuter.push(outer);
+                    arcsRadiusInner.push(inner);
+                }
+            } else {
+                if(growOnHover){
+                    arcsRadiusOuter = arcsRadius.map(function (d) { return (d.outer - d.outer / 5) * radius; });
+                    arcsRadiusInner = arcsRadius.map(function (d) { return (d.inner - d.inner / 5) * radius; });
+                    donutRatio = d3.min(arcsRadius.map(function (d) { return (d.inner - d.inner / 5); }));
+                } else {
+                    arcsRadiusOuter = arcsRadius.map(function (d) { return d.outer * radius; });
+                    arcsRadiusInner = arcsRadius.map(function (d) { return d.inner * radius; });
+                    donutRatio = d3.min(arcsRadius.map(function (d) { return d.inner; }));
+                }
+            }
+            nv.utils.initSVG(container);
+
+            // Setup containers and skeleton of chart
+            var wrap = container.selectAll('.nv-wrap.nv-pie').data(data);
+            var wrapEnter = wrap.enter().append('g').attr('class','nvd3 nv-wrap nv-pie nv-chart-' + id);
+            var gEnter = wrapEnter.append('g');
+            var g = wrap.select('g');
+            var g_pie = gEnter.append('g').attr('class', 'nv-pie');
+            gEnter.append('g').attr('class', 'nv-pieLabels');
+
+            wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
+            g.select('.nv-pie').attr('transform', 'translate(' + availableWidth / 2 + ',' + availableHeight / 2 + ')');
+            g.select('.nv-pieLabels').attr('transform', 'translate(' + availableWidth / 2 + ',' + availableHeight / 2 + ')');
+
+            //
+            container.on('click', function(d,i) {
+                dispatch.chartClick({
+                    data: d,
+                    index: i,
+                    pos: d3.event,
+                    id: id
+                });
+            });
+
+            arcs = [];
+            arcsOver = [];
+            for (var i = 0; i < data[0].length; i++) {
+
+                var arc = d3.svg.arc().outerRadius(arcsRadiusOuter[i]);
+                var arcOver = d3.svg.arc().outerRadius(arcsRadiusOuter[i] + 5);
+
+                if (startAngle !== false) {
+                    arc.startAngle(startAngle);
+                    arcOver.startAngle(startAngle);
+                }
+                if (endAngle !== false) {
+                    arc.endAngle(endAngle);
+                    arcOver.endAngle(endAngle);
+                }
+                if (donut) {
+                    arc.innerRadius(arcsRadiusInner[i]);
+                    arcOver.innerRadius(arcsRadiusInner[i]);
+                }
+
+                if (arc.cornerRadius && cornerRadius) {
+                    arc.cornerRadius(cornerRadius);
+                    arcOver.cornerRadius(cornerRadius);
+                }
+
+                arcs.push(arc);
+                arcsOver.push(arcOver);
+            }
+
+            // Setup the Pie chart and choose the data element
+            var pie = d3.layout.pie()
+                .sort(null)
+                .value(function(d) { return d.disabled ? 0 : getY(d) });
+
+            // padAngle added in d3 3.5
+            if (pie.padAngle && padAngle) {
+                pie.padAngle(padAngle);
+            }
+
+            // if title is specified and donut, put it in the middle
+            if (donut && title) {
+                g_pie.append("text").attr('class', 'nv-pie-title');
+
+                wrap.select('.nv-pie-title')
+                    .style("text-anchor", "middle")
+                    .text(function (d) {
+                        return title;
+                    })
+                    .style("font-size", (Math.min(availableWidth, availableHeight)) * donutRatio * 2 / (title.length + 2) + "px")
+                    .attr("dy", "0.35em") // trick to vertically center text
+                    .attr('transform', function(d, i) {
+                        return 'translate(0, '+ titleOffset + ')';
+                    });
+            }
+
+            var slices = wrap.select('.nv-pie').selectAll('.nv-slice').data(pie);
+            var pieLabels = wrap.select('.nv-pieLabels').selectAll('.nv-label').data(pie);
+
+            slices.exit().remove();
+            pieLabels.exit().remove();
+
+            var ae = slices.enter().append('g');
+            ae.attr('class', 'nv-slice');
+            ae.on('mouseover', function(d, i) {
+                d3.select(this).classed('hover', true);
+                if (growOnHover) {
+                    d3.select(this).select("path").transition()
+                        .duration(70)
+                        .attr("d", arcsOver[i]);
+                }
+                dispatch.elementMouseover({
+                    data: d.data,
+                    index: i,
+                    color: d3.select(this).style("fill")
+                });
+            });
+            ae.on('mouseout', function(d, i) {
+                d3.select(this).classed('hover', false);
+                if (growOnHover) {
+                    d3.select(this).select("path").transition()
+                        .duration(50)
+                        .attr("d", arcs[i]);
+                }
+                dispatch.elementMouseout({data: d.data, index: i});
+            });
+            ae.on('mousemove', function(d, i) {
+                dispatch.elementMousemove({data: d.data, index: i});
+            });
+            ae.on('click', function(d, i) {
+                var element = this;
+                dispatch.elementClick({
+                    data: d.data,
+                    index: i,
+                    color: d3.select(this).style("fill"),
+                    event: d3.event,
+                    element: element
+                });
+            });
+            ae.on('dblclick', function(d, i) {
+                dispatch.elementDblClick({
+                    data: d.data,
+                    index: i,
+                    color: d3.select(this).style("fill")
+                });
+            });
+
+            slices.attr('fill', function(d,i) { return color(d.data, i); });
+            slices.attr('stroke', function(d,i) { return color(d.data, i); });
+
+            var paths = ae.append('path').each(function(d) {
+                this._current = d;
+            });
+
+            slices.select('path')
+                .transition()
+                .attr('d', function (d, i) { return arcs[i](d); })
+                .attrTween('d', arcTween);
+
+            if (showLabels) {
+                // This does the normal label
+                var labelsArc = [];
+                for (var i = 0; i < data[0].length; i++) {
+                    labelsArc.push(arcs[i]);
+
+                    if (labelsOutside) {
+                        if (donut) {
+                            labelsArc[i] = d3.svg.arc().outerRadius(arcs[i].outerRadius());
+                            if (startAngle !== false) labelsArc[i].startAngle(startAngle);
+                            if (endAngle !== false) labelsArc[i].endAngle(endAngle);
+                        }
+                    } else if (!donut) {
+                            labelsArc[i].innerRadius(0);
+                    }
+                }
+
+                pieLabels.enter().append("g").classed("nv-label",true).each(function(d,i) {
+                    var group = d3.select(this);
+
+                    group.attr('transform', function (d, i) {
+                        if (labelSunbeamLayout) {
+                            d.outerRadius = arcsRadiusOuter[i] + 10; // Set Outer Coordinate
+                            d.innerRadius = arcsRadiusOuter[i] + 15; // Set Inner Coordinate
+                            var rotateAngle = (d.startAngle + d.endAngle) / 2 * (180 / Math.PI);
+                            if ((d.startAngle + d.endAngle) / 2 < Math.PI) {
+                                rotateAngle -= 90;
+                            } else {
+                                rotateAngle += 90;
+                            }
+                            return 'translate(' + labelsArc[i].centroid(d) + ') rotate(' + rotateAngle + ')';
+                        } else {
+                            d.outerRadius = radius + 10; // Set Outer Coordinate
+                            d.innerRadius = radius + 15; // Set Inner Coordinate
+                            return 'translate(' + labelsArc[i].centroid(d) + ')'
+                        }
+                    });
+
+                    group.append('rect')
+                        .style('stroke', '#fff')
+                        .style('fill', '#fff')
+                        .attr("rx", 3)
+                        .attr("ry", 3);
+
+                    group.append('text')
+                        .style('text-anchor', labelSunbeamLayout ? ((d.startAngle + d.endAngle) / 2 < Math.PI ? 'start' : 'end') : 'middle') //center the text on it's origin or begin/end if orthogonal aligned
+                        .style('fill', '#000')
+                });
+
+                var labelLocationHash = {};
+                var avgHeight = 14;
+                var avgWidth = 140;
+                var createHashKey = function(coordinates) {
+                    return Math.floor(coordinates[0]/avgWidth) * avgWidth + ',' + Math.floor(coordinates[1]/avgHeight) * avgHeight;
+                };
+                var getSlicePercentage = function(d) {
+                    return (d.endAngle - d.startAngle) / (2 * Math.PI);
+                };
+
+                pieLabels.watchTransition(renderWatch, 'pie labels').attr('transform', function (d, i) {
+                    if (labelSunbeamLayout) {
+                        d.outerRadius = arcsRadiusOuter[i] + 10; // Set Outer Coordinate
+                        d.innerRadius = arcsRadiusOuter[i] + 15; // Set Inner Coordinate
+                        var rotateAngle = (d.startAngle + d.endAngle) / 2 * (180 / Math.PI);
+                        if ((d.startAngle + d.endAngle) / 2 < Math.PI) {
+                            rotateAngle -= 90;
+                        } else {
+                            rotateAngle += 90;
+                        }
+                        return 'translate(' + labelsArc[i].centroid(d) + ') rotate(' + rotateAngle + ')';
+                    } else {
+                        d.outerRadius = radius + 10; // Set Outer Coordinate
+                        d.innerRadius = radius + 15; // Set Inner Coordinate
+
+                        /*
+                        Overlapping pie labels are not good. What this attempts to do is, prevent overlapping.
+                        Each label location is hashed, and if a hash collision occurs, we assume an overlap.
+                        Adjust the label's y-position to remove the overlap.
+                        */
+                        var center = labelsArc[i].centroid(d);
+                        var percent = getSlicePercentage(d);
+                        if (d.value && percent >= labelThreshold) {
+                            var hashKey = createHashKey(center);
+                            if (labelLocationHash[hashKey]) {
+                                center[1] -= avgHeight;
+                            }
+                            labelLocationHash[createHashKey(center)] = true;
+                        }
+                        return 'translate(' + center + ')'
+                    }
+                });
+
+                pieLabels.select(".nv-label text")
+                    .style('text-anchor', function(d,i) {
+                        //center the text on it's origin or begin/end if orthogonal aligned
+                        return labelSunbeamLayout ? ((d.startAngle + d.endAngle) / 2 < Math.PI ? 'start' : 'end') : 'middle';
+                    })
+                    .text(function(d, i) {
+                        var percent = getSlicePercentage(d);
+                        var label = '';
+                        if (!d.value || percent < labelThreshold) return '';
+
+                        if(typeof labelType === 'function') {
+                            label = labelType(d, i, {
+                                'key': getX(d.data),
+                                'value': getY(d.data),
+                                'percent': valueFormat(percent)
+                            });
+                        } else {
+                            switch (labelType) {
+                                case 'key':
+                                    label = getX(d.data);
+                                    break;
+                                case 'value':
+                                    label = valueFormat(getY(d.data));
+                                    break;
+                                case 'percent':
+                                    label = d3.format('%')(percent);
+                                    break;
+                            }
+                        }
+                        return label;
+                    })
+                ;
+            }
+
+
+            // Computes the angle of an arc, converting from radians to degrees.
+            function angle(d) {
+                var a = (d.startAngle + d.endAngle) * 90 / Math.PI - 90;
+                return a > 90 ? a - 180 : a;
+            }
+
+            function arcTween(a, idx) {
+                a.endAngle = isNaN(a.endAngle) ? 0 : a.endAngle;
+                a.startAngle = isNaN(a.startAngle) ? 0 : a.startAngle;
+                if (!donut) a.innerRadius = 0;
+                var i = d3.interpolate(this._current, a);
+                this._current = i(0);
+                return function (t) {
+                    return arcs[idx](i(t));
+                };
+            }
+        });
+
+        renderWatch.renderEnd('pie immediate');
+        return chart;
+    }
+
+    //============================================================
+    // Expose Public Variables
+    //------------------------------------------------------------
+
+    chart.dispatch = dispatch;
+    chart.options = nv.utils.optionsFunc.bind(chart);
+
+    chart._options = Object.create({}, {
+        // simple options, just get/set the necessary values
+        arcsRadius: { get: function () { return arcsRadius; }, set: function (_) { arcsRadius = _; } },
+        width:      {get: function(){return width;}, set: function(_){width=_;}},
+        height:     {get: function(){return height;}, set: function(_){height=_;}},
+        showLabels: {get: function(){return showLabels;}, set: function(_){showLabels=_;}},
+        title:      {get: function(){return title;}, set: function(_){title=_;}},
+        titleOffset:    {get: function(){return titleOffset;}, set: function(_){titleOffset=_;}},
+        labelThreshold: {get: function(){return labelThreshold;}, set: function(_){labelThreshold=_;}},
+        valueFormat:    {get: function(){return valueFormat;}, set: function(_){valueFormat=_;}},
+        x:          {get: function(){return getX;}, set: function(_){getX=_;}},
+        id:         {get: function(){return id;}, set: function(_){id=_;}},
+        endAngle:   {get: function(){return endAngle;}, set: function(_){endAngle=_;}},
+        startAngle: {get: function(){return startAngle;}, set: function(_){startAngle=_;}},
+        padAngle:   {get: function(){return padAngle;}, set: function(_){padAngle=_;}},
+        cornerRadius: {get: function(){return cornerRadius;}, set: function(_){cornerRadius=_;}},
+        donutRatio:   {get: function(){return donutRatio;}, set: function(_){donutRatio=_;}},
+        labelsOutside: {get: function(){return labelsOutside;}, set: function(_){labelsOutside=_;}},
+        labelSunbeamLayout: {get: function(){return labelSunbeamLayout;}, set: function(_){labelSunbeamLayout=_;}},
+        donut:              {get: function(){return donut;}, set: function(_){donut=_;}},
+        growOnHover:        {get: function(){return growOnHover;}, set: function(_){growOnHover=_;}},
+
+        // depreciated after 1.7.1
+        pieLabelsOutside: {get: function(){return labelsOutside;}, set: function(_){
+            labelsOutside=_;
+            nv.deprecated('pieLabelsOutside', 'use labelsOutside instead');
+        }},
+        // depreciated after 1.7.1
+        donutLabelsOutside: {get: function(){return labelsOutside;}, set: function(_){
+            labelsOutside=_;
+            nv.deprecated('donutLabelsOutside', 'use labelsOutside instead');
+        }},
+        // deprecated after 1.7.1
+        labelFormat: {get: function(){ return valueFormat;}, set: function(_) {
+            valueFormat=_;
+            nv.deprecated('labelFormat','use valueFormat instead');
+        }},
+
+        // options that require extra logic in the setter
+        margin: {get: function(){return margin;}, set: function(_){
+            margin.top    = typeof _.top    != 'undefined' ? _.top    : margin.top;
+            margin.right  = typeof _.right  != 'undefined' ? _.right  : margin.right;
+            margin.bottom = typeof _.bottom != 'undefined' ? _.bottom : margin.bottom;
+            margin.left   = typeof _.left   != 'undefined' ? _.left   : margin.left;
+        }},
+        y: {get: function(){return getY;}, set: function(_){
+            getY=d3.functor(_);
+        }},
+        color: {get: function(){return color;}, set: function(_){
+            color=nv.utils.getColor(_);
+        }},
+        labelType:          {get: function(){return labelType;}, set: function(_){
+            labelType= _ || 'key';
+        }}
+    });
+
+    nv.utils.initOptions(chart);
+    return chart;
+};
+
+nv.version = "1.8.2-dev";
+})();
\ No newline at end of file
diff --git a/kpi_dashboard/static/src/js/dashboard_controller.js b/kpi_dashboard/static/src/js/dashboard_controller.js
index 7910f82c..bf6e5554 100644
--- a/kpi_dashboard/static/src/js/dashboard_controller.js
+++ b/kpi_dashboard/static/src/js/dashboard_controller.js
@@ -1,3 +1,6 @@
+/*
+    global py
+*/
 odoo.define("kpi_dashboard.DashboardController", function(require) {
     "use strict";
 
@@ -20,7 +23,7 @@ odoo.define("kpi_dashboard.DashboardController", function(require) {
             add_modify_color: "_addModifyColor",
             refresh_colors: "_refreshColors",
         }),
-        _refreshOnFly: function(event) {
+        _refreshOnFly: function() {
             var self = this;
             this._rpc({
                 model: this.modelName,
@@ -37,12 +40,14 @@ odoo.define("kpi_dashboard.DashboardController", function(require) {
             });
         },
         renderPager: function($node, options) {
+            // eslint-disable-next-line no-param-reassign
             options = _.extend({}, options, {
                 validate: this.canBeDiscarded.bind(this),
             });
             this._super($node, options);
         },
         _pushState: function(state) {
+            // eslint-disable-next-line no-param-reassign
             state = state || {};
             var env = this.model.get(this.handle, {env: true});
             state.id = env.currentId;
diff --git a/kpi_dashboard/static/src/js/dashboard_model.js b/kpi_dashboard/static/src/js/dashboard_model.js
index 93f0eb5c..bd15e643 100644
--- a/kpi_dashboard/static/src/js/dashboard_model.js
+++ b/kpi_dashboard/static/src/js/dashboard_model.js
@@ -4,7 +4,7 @@ odoo.define("kpi_dashboard.DashboardModel", function(require) {
     var BasicModel = require("web.BasicModel");
 
     var DashboardModel = BasicModel.extend({
-        _fetchRecord: function(record, options) {
+        _fetchRecord: function(record) {
             return this._rpc({
                 model: record.model,
                 method: "read_dashboard",
diff --git a/kpi_dashboard/static/src/js/dashboard_renderer.js b/kpi_dashboard/static/src/js/dashboard_renderer.js
index 0caa85fc..823831e5 100644
--- a/kpi_dashboard/static/src/js/dashboard_renderer.js
+++ b/kpi_dashboard/static/src/js/dashboard_renderer.js
@@ -4,7 +4,6 @@ odoo.define("kpi_dashboard.DashboardRenderer", function(require) {
     var BasicRenderer = require("web.BasicRenderer");
     var core = require("web.core");
     var registry = require("kpi_dashboard.widget_registry");
-    var BusService = require("bus.BusService");
     var qweb = core.qweb;
 
     var DashboardRenderer = BasicRenderer.extend({
diff --git a/kpi_dashboard/static/src/js/lib/nvd3.js b/kpi_dashboard/static/src/js/lib/nvd3.js
new file mode 100644
index 00000000..e27fe602
--- /dev/null
+++ b/kpi_dashboard/static/src/js/lib/nvd3.js
@@ -0,0 +1,50 @@
+/*
+global nv
+*/
+odoo.define("web.nvd3.extensions", function() {
+    "use strict";
+
+    /**
+     * The nvd3 library extensions and fixes should be done here to avoid patching
+     * in place.
+     */
+
+    nv.dev = false;
+    // Sets nvd3 library in production mode
+
+    // monkey patch nvd3 to allow removing eventhandler on windowresize events
+    // see https://github.com/novus/nvd3/pull/396 for more details
+
+    // Adds a resize listener to the window.
+    nv.utils.onWindowResize = function(fun) {
+        if (fun === null) return;
+        window.addEventListener("resize", fun);
+    };
+
+    // Backwards compatibility with current API.
+    nv.utils.windowResize = nv.utils.onWindowResize;
+
+    // Removes a resize listener from the window.
+    nv.utils.offWindowResize = function(fun) {
+        if (fun === null) return;
+        window.removeEventListener("resize", fun);
+    };
+
+    // Monkey patch nvd3 to prevent crashes when user changes view and nvd3
+    // tries to remove tooltips after 500 ms...  seriously nvd3, what were you
+    // thinking?
+    nv.tooltip.cleanup = function() {
+        $(".nvtooltip").remove();
+    };
+
+    // Monkey patch nvd3 to prevent it to display a tooltip (position: absolute)
+    // with a negative `top`; with this patch the highest tooltip's position is
+    // still in the graph
+    var originalCalcTooltipPosition = nv.tooltip.calcTooltipPosition;
+    nv.tooltip.calcTooltipPosition = function() {
+        var container = originalCalcTooltipPosition.apply(this, arguments);
+        container.style.top =
+            container.style.top.split("px")[0] < 0 ? 0 + "px" : container.style.top;
+        return container;
+    };
+});
diff --git a/kpi_dashboard/static/src/js/widget/abstract_widget.js b/kpi_dashboard/static/src/js/widget/abstract_widget.js
index 0d1ffb4f..22ee823c 100644
--- a/kpi_dashboard/static/src/js/widget/abstract_widget.js
+++ b/kpi_dashboard/static/src/js/widget/abstract_widget.js
@@ -7,9 +7,12 @@ odoo.define("kpi_dashboard.AbstractWidget", function(require) {
     var registry = require("kpi_dashboard.widget_registry");
 
     var AbstractWidget = Widget.extend({
-        template: "kpi_dashboard.base_widget", // Template used by the widget
-        cssLibs: [], // Specific css of the widget
-        jsLibs: [], // Specific Javascript libraries of the widget
+        // Template used by the widget
+        template: "kpi_dashboard.base_widget",
+        // Specific css of the widget
+        cssLibs: [],
+        // Specific Javascript libraries of the widget
+        jsLibs: [],
         events: {
             "click .o_kpi_dashboard_toggle_button": "_onClickToggleButton",
             "click .direct_action": "_onClickDirectAction",
diff --git a/kpi_dashboard/static/src/js/widget/counter_widget.js b/kpi_dashboard/static/src/js/widget/counter_widget.js
index 019afd67..54d7f8cc 100644
--- a/kpi_dashboard/static/src/js/widget/counter_widget.js
+++ b/kpi_dashboard/static/src/js/widget/counter_widget.js
@@ -3,7 +3,6 @@ odoo.define("kpi_dashboard.CounterWidget", function(require) {
 
     var IntegerWidget = require("kpi_dashboard.IntegerWidget");
     var registry = require("kpi_dashboard.widget_registry");
-    var field_utils = require("web.field_utils");
 
     var CounterWidget = IntegerWidget.extend({
         shortList: [],
diff --git a/kpi_dashboard/static/src/js/widget/graph_widget.js b/kpi_dashboard/static/src/js/widget/graph_widget.js
index d3e49226..91820b4b 100644
--- a/kpi_dashboard/static/src/js/widget/graph_widget.js
+++ b/kpi_dashboard/static/src/js/widget/graph_widget.js
@@ -1,3 +1,6 @@
+/*
+global nv, d3
+*/
 odoo.define("kpi_dashboard.GraphWidget", function(require) {
     "use strict";
 
@@ -9,11 +12,11 @@ odoo.define("kpi_dashboard.GraphWidget", function(require) {
     var GraphWidget = AbstractWidget.extend({
         template: "kpi_dashboard.graph",
         jsLibs: [
-            "/web/static/lib/nvd3/d3.v3.js",
-            "/web/static/lib/nvd3/nv.d3.js",
-            "/web/static/src/js/libs/nvd3.js",
+            "/kpi_dashboard/static/lib/nvd3/d3.v3.js",
+            "/kpi_dashboard/static/lib/nvd3/nv.d3.js",
+            "/kpi_dashboard/static/src/js/lib/nvd3.js",
         ],
-        cssLibs: ["/web/static/lib/nvd3/nv.d3.css"],
+        cssLibs: ["/kpi_dashboard/static/lib/nvd3/nv.d3.css"],
         start: function() {
             this._onResize = this._onResize.bind(this);
             nv.utils.windowResize(this._onResize);
@@ -28,7 +31,7 @@ odoo.define("kpi_dashboard.GraphWidget", function(require) {
             }
             this._super.apply(this, arguments);
         },
-        _getChartOptions: function(values) {
+        _getChartOptions: function() {
             return {
                 x: function(d, u) {
                     return u;
diff --git a/kpi_dashboard/static/src/js/widget/integer_widget.js b/kpi_dashboard/static/src/js/widget/integer_widget.js
index 615ac238..5ba03e0e 100644
--- a/kpi_dashboard/static/src/js/widget/integer_widget.js
+++ b/kpi_dashboard/static/src/js/widget/integer_widget.js
@@ -18,16 +18,17 @@ odoo.define("kpi_dashboard.IntegerWidget", function(require) {
             var suffix = "";
             var shortened = false;
             var digits = this.digits;
+            var result = num;
             _.each(this.shortList, function(shortItem) {
                 if (!shortened && Math.abs(num) >= shortItem[0]) {
                     shortened = true;
                     suffix = shortItem[1];
-                    num /= shortItem[0];
+                    result /= shortItem[0];
                     digits = shortItem[2];
                 }
             });
             return (
-                field_utils.format.float(num, false, {
+                field_utils.format.float(result, false, {
                     digits: digits,
                 }) + suffix
             );
diff --git a/kpi_dashboard/static/src/js/widget/meter_widget.js b/kpi_dashboard/static/src/js/widget/meter_widget.js
index 9c1353d5..606e3874 100644
--- a/kpi_dashboard/static/src/js/widget/meter_widget.js
+++ b/kpi_dashboard/static/src/js/widget/meter_widget.js
@@ -21,8 +21,8 @@ odoo.define("kpi_dashboard.MeterWidget", function(require) {
                 style: "Arch",
                 width: 10,
                 size: size,
-                prepend: values.prefix !== undefined ? values.prefix : "",
-                append: values.suffix !== undefined ? values.suffix : "",
+                prepend: values.prefix === undefined ? "" : values.prefix,
+                append: values.suffix === undefined ? "" : values.suffix,
                 color: values.font_color,
                 animate_text_colors: true,
             };
diff --git a/kpi_dashboard/tests/test_formula.py b/kpi_dashboard/tests/test_formula.py
index da5c9f69..1c707150 100644
--- a/kpi_dashboard/tests/test_formula.py
+++ b/kpi_dashboard/tests/test_formula.py
@@ -9,7 +9,7 @@ class TestFormula(TransactionCase):
     def setUp(self):
         super().setUp()
         self.kpi = self.env["kpi.kpi"].create(
-            {"name": "DEMO KPI", "widget": "number", "computation_method": "code",}
+            {"name": "DEMO KPI", "widget": "number", "computation_method": "code"}
         )
 
     def test_forbidden_words_01(self):
@@ -45,8 +45,7 @@ result = {{}}
 result['value'] = len(model.search([('id', '=', {})]))
 result['previous'] = len(model.search([('id', '!=', {})]))
         """.format(
-            self.kpi.id,
-            self.kpi.id,
+            self.kpi.id, self.kpi.id,
         )
         self.kpi.compute()
         value = self.kpi.value
@@ -66,8 +65,7 @@ result = {{}}
 result['value'] = len(model.search([('id', '=', {})]))
 result['previous'] = len(model.search([('id', '!=', {})]))
         """.format(
-            self.kpi.id,
-            self.kpi.id,
+            self.kpi.id, self.kpi.id,
         )
         self.kpi.compute()
         value = self.kpi.value
diff --git a/kpi_dashboard/tests/test_kpi_dashboard.py b/kpi_dashboard/tests/test_kpi_dashboard.py
index 1bbb4392..9a581a2e 100644
--- a/kpi_dashboard/tests/test_kpi_dashboard.py
+++ b/kpi_dashboard/tests/test_kpi_dashboard.py
@@ -53,16 +53,18 @@ class TestKpiDashboard(TransactionCase):
             }
         )
         self.env["kpi.dashboard.item"].create(
-            {"dashboard_id": self.dashboard.id, "name": "TITLE", "row": 2, "column": 1,}
+            {"dashboard_id": self.dashboard.id, "name": "TITLE", "row": 2, "column": 1}
         )
 
     def test_constrains_01(self):
         with self.assertRaises(ValidationError):
             self.kpi_01.dashboard_item_ids.write({"size_x": 2})
+            self.kpi_01.flush()
 
     def test_constrains_02(self):
         with self.assertRaises(ValidationError):
             self.kpi_02.dashboard_item_ids.write({"size_x": 4})
+            self.kpi_01.flush()
 
     def test_constrains_03(self):
         with self.assertRaises(ValidationError):
diff --git a/kpi_dashboard/wizards/kpi_dashboard_menu.py b/kpi_dashboard/wizards/kpi_dashboard_menu.py
index 367dea50..a9a3c3b8 100644
--- a/kpi_dashboard/wizards/kpi_dashboard_menu.py
+++ b/kpi_dashboard/wizards/kpi_dashboard_menu.py
@@ -1,7 +1,7 @@
 # Copyright 2020 Creu Blanca
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
-from odoo import api, fields, models
+from odoo import fields, models
 
 
 class KpiDashboardMenu(models.TransientModel):
@@ -12,6 +12,5 @@ class KpiDashboardMenu(models.TransientModel):
     dashboard_id = fields.Many2one("kpi.dashboard", required=True)
     menu_id = fields.Many2one("ir.ui.menu")
 
-    @api.multi
     def generate_menu(self):
         self.dashboard_id._generate_menu(self.menu_id)