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From kxe...@apache.org
Subject [43/50] [abbrv] Updating d3 to v3.4.3 and nv.d3 to v1.1.15
Date Tue, 01 Apr 2014 09:14:59 GMT
http://git-wip-us.apache.org/repos/asf/couchdb-fauxton/blob/58029ef9/assets/js/libs/d3.js
----------------------------------------------------------------------
diff --git a/assets/js/libs/d3.js b/assets/js/libs/d3.js
index 44fc0b0..b57c8d0 100644
--- a/assets/js/libs/d3.js
+++ b/assets/js/libs/d3.js
@@ -1,4 +1,223 @@
-(function() {
+!function() {
+  var d3 = {
+    version: "3.4.3"
+  };
+  if (!Date.now) Date.now = function() {
+    return +new Date();
+  };
+  var d3_arraySlice = [].slice, d3_array = function(list) {
+    return d3_arraySlice.call(list);
+  };
+  var d3_document = document, d3_documentElement = d3_document.documentElement, d3_window = window;
+  try {
+    d3_array(d3_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;
+    };
+  }
+  try {
+    d3_document.createElement("div").style.setProperty("opacity", 0, "");
+  } catch (error) {
+    var d3_element_prototype = d3_window.Element.prototype, d3_element_setAttribute = d3_element_prototype.setAttribute, d3_element_setAttributeNS = d3_element_prototype.setAttributeNS, d3_style_prototype = d3_window.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 = function(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 && !((a = array[i]) != null && a <= a)) a = undefined;
+      while (++i < n) if ((b = array[i]) != null && a > b) a = b;
+    } else {
+      while (++i < n && !((a = f.call(array, array[i], i)) != null && a <= a)) a = undefined;
+      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 && !((a = array[i]) != null && a <= a)) a = undefined;
+      while (++i < n) if ((b = array[i]) != null && b > a) a = b;
+    } else {
+      while (++i < n && !((a = f.call(array, array[i], i)) != null && a <= a)) a = undefined;
+      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 && !((a = c = array[i]) != null && a <= a)) a = c = undefined;
+      while (++i < n) if ((b = array[i]) != null) {
+        if (a > b) a = b;
+        if (c < b) c = b;
+      }
+    } else {
+      while (++i < n && !((a = c = f.call(array, array[i], i)) != null && a <= a)) a = undefined;
+      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 ];
+  };
+  d3.sum = function(array, f) {
+    var s = 0, n = array.length, a, i = -1;
+    if (arguments.length === 1) {
+      while (++i < n) if (!isNaN(a = +array[i])) s += a;
+    } else {
+      while (++i < n) if (!isNaN(a = +f.call(array, array[i], i))) s += a;
+    }
+    return s;
+  };
+  function d3_number(x) {
+    return x != null && !isNaN(x);
+  }
+  d3.mean = function(array, f) {
+    var n = array.length, a, m = 0, i = -1, j = 0;
+    if (arguments.length === 1) {
+      while (++i < n) if (d3_number(a = array[i])) m += (a - m) / ++j;
+    } else {
+      while (++i < n) if (d3_number(a = f.call(array, array[i], i))) m += (a - m) / ++j;
+    }
+    return j ? m : undefined;
+  };
+  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) {
+    if (arguments.length > 1) array = array.map(f);
+    array = array.filter(d3_number);
+    return array.length ? d3.quantile(array.sort(d3.ascending), .5) : undefined;
+  };
+  d3.bisector = function(f) {
+    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 (f.call(a, a[mid], mid) < x) 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 (x < f.call(a, a[mid], mid)) hi = mid; else lo = mid + 1;
+        }
+        return lo;
+      }
+    };
+  };
+  var d3_bisector = d3.bisector(function(d) {
+    return d;
+  });
+  d3.bisectLeft = d3_bisector.left;
+  d3.bisect = d3.bisectRight = d3_bisector.right;
+  d3.shuffle = function(array) {
+    var m = array.length, t, i;
+    while (m) {
+      i = Math.random() * m-- | 0;
+      t = array[m], array[m] = array[i], array[i] = 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) {
     try {
       for (var key in properties) {
@@ -11,60 +230,206 @@
       ctor.prototype = properties;
     }
   }
-  function d3_arrayCopy(pseudoarray) {
-    var i = -1, n = pseudoarray.length, array = [];
-    while (++i < n) array.push(pseudoarray[i]);
-    return array;
+  d3.map = function(object) {
+    var map = new d3_Map();
+    if (object instanceof d3_Map) object.forEach(function(key, value) {
+      map.set(key, value);
+    }); else for (var key in object) map.set(key, object[key]);
+    return map;
+  };
+  function d3_Map() {}
+  d3_class(d3_Map, {
+    has: d3_map_has,
+    get: function(key) {
+      return this[d3_map_prefix + key];
+    },
+    set: function(key, value) {
+      return this[d3_map_prefix + key] = value;
+    },
+    remove: d3_map_remove,
+    keys: d3_map_keys,
+    values: function() {
+      var values = [];
+      this.forEach(function(key, value) {
+        values.push(value);
+      });
+      return values;
+    },
+    entries: function() {
+      var entries = [];
+      this.forEach(function(key, value) {
+        entries.push({
+          key: key,
+          value: value
+        });
+      });
+      return entries;
+    },
+    size: d3_map_size,
+    empty: d3_map_empty,
+    forEach: function(f) {
+      for (var key in this) if (key.charCodeAt(0) === d3_map_prefixCode) f.call(this, key.substring(1), this[key]);
+    }
+  });
+  var d3_map_prefix = "\x00", d3_map_prefixCode = d3_map_prefix.charCodeAt(0);
+  function d3_map_has(key) {
+    return d3_map_prefix + key in this;
   }
-  function d3_arraySlice(pseudoarray) {
-    return Array.prototype.slice.call(pseudoarray);
+  function d3_map_remove(key) {
+    key = d3_map_prefix + key;
+    return key in this && delete this[key];
   }
-  function d3_Map() {}
-  function d3_identity(d) {
-    return d;
+  function d3_map_keys() {
+    var keys = [];
+    this.forEach(function(key) {
+      keys.push(key);
+    });
+    return keys;
   }
-  function d3_this() {
-    return this;
+  function d3_map_size() {
+    var size = 0;
+    for (var key in this) if (key.charCodeAt(0) === d3_map_prefixCode) ++size;
+    return size;
   }
-  function d3_true() {
+  function d3_map_empty() {
+    for (var key in this) if (key.charCodeAt(0) === d3_map_prefixCode) return false;
     return true;
   }
-  function d3_functor(v) {
-    return typeof v === "function" ? v : function() {
-      return v;
+  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);
     };
-  }
-  function d3_rebind(target, source, method) {
-    return function() {
-      var value = method.apply(source, arguments);
-      return arguments.length ? target : value;
+    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() {}
+  d3_class(d3_Set, {
+    has: d3_map_has,
+    add: function(value) {
+      this[d3_map_prefix + value] = true;
+      return value;
+    },
+    remove: function(value) {
+      value = d3_map_prefix + value;
+      return value in this && delete this[value];
+    },
+    values: d3_map_keys,
+    size: d3_map_size,
+    empty: d3_map_empty,
+    forEach: function(f) {
+      for (var value in this) if (value.charCodeAt(0) === d3_map_prefixCode) f.call(this, value.substring(1));
+    }
+  });
+  d3.behavior = {};
+  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.substring(1);
+    for (var i = 0, n = d3_vendorPrefixes.length; i < n; ++i) {
+      var prefixName = d3_vendorPrefixes[i] + name;
+      if (prefixName in object) return prefixName;
+    }
   }
-  function d3_number(x) {
-    return x != null && !isNaN(x);
-  }
-  function d3_zipLength(d) {
-    return d.length;
-  }
-  function d3_splitter(d) {
-    return d == null;
-  }
-  function d3_collapse(s) {
-    return s.trim().replace(/\s+/g, " ");
-  }
-  function d3_range_integerScale(x) {
-    var k = 1;
-    while (x * k % 1) k *= 10;
-    return k;
-  }
+  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.substring(i + 1);
+      type = type.substring(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;
     }
-    var listeners = [], listenerByName = new d3_Map;
     event.on = function(name, listener) {
       var l = listenerByName.get(name), i;
       if (arguments.length < 2) return l && l.on;
@@ -80,82 +445,8 @@
     };
     return event;
   }
-  function d3_format_precision(x, p) {
-    return p - (x ? 1 + Math.floor(Math.log(x + Math.pow(10, 1 + Math.floor(Math.log(x) / Math.LN10) - p)) / Math.LN10) : 1);
-  }
-  function d3_format_typeDefault(x) {
-    return x + "";
-  }
-  function d3_format_group(value) {
-    var i = value.lastIndexOf("."), f = i >= 0 ? value.substring(i) : (i = value.length, ""), t = [];
-    while (i > 0) t.push(value.substring(i -= 3, i + 3));
-    return t.reverse().join(",") + f;
-  }
-  function d3_formatPrefix(d, i) {
-    var k = Math.pow(10, Math.abs(8 - i) * 3);
-    return {
-      scale: i > 8 ? function(d) {
-        return d / k;
-      } : function(d) {
-        return d * k;
-      },
-      symbol: d
-    };
-  }
-  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_identity(t) {
-    return t;
-  }
-  function d3_ease_poly(e) {
-    return function(t) {
-      return Math.pow(t, e);
-    };
-  }
-  function d3_ease_sin(t) {
-    return 1 - Math.cos(t * Math.PI / 2);
-  }
-  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 < 1) {
-      a = 1;
-      s = p / 4;
-    } else s = p / (2 * Math.PI) * Math.asin(1 / a);
-    return function(t) {
-      return 1 + a * Math.pow(2, 10 * -t) * Math.sin((t - s) * 2 * Math.PI / 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;
-  }
-  function d3_eventCancel() {
-    d3.event.stopPropagation();
+  d3.event = null;
+  function d3_eventPreventDefault() {
     d3.event.preventDefault();
   }
   function d3_eventSource() {
@@ -164,7 +455,7 @@
     return e;
   }
   function d3_eventDispatch(target) {
-    var dispatch = new d3_dispatch, i = 0, n = arguments.length;
+    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) {
@@ -180,204 +471,114 @@
     };
     return dispatch;
   }
-  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_transformDegrees;
-    this.translate = [ m.e, m.f ];
-    this.scale = [ kx, ky ];
-    this.skew = ky ? Math.atan2(kz, ky) * d3_transformDegrees : 0;
-  }
-  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;
-  }
-  function d3_interpolateByName(name) {
-    return name == "transform" ? d3.interpolateTransform : d3.interpolate;
+  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;
   }
-  function d3_uninterpolateNumber(a, b) {
-    b = b - (a = +a) ? 1 / (b - a) : 0;
-    return function(x) {
-      return (x - a) * b;
+  var d3_select = function(s, n) {
+    return n.querySelector(s);
+  }, d3_selectAll = function(s, n) {
+    return n.querySelectorAll(s);
+  }, d3_selectMatcher = d3_documentElement[d3_vendorSymbol(d3_documentElement, "matchesSelector")], d3_selectMatches = function(n, s) {
+    return d3_selectMatcher.call(n, s);
+  };
+  if (typeof Sizzle === "function") {
+    d3_select = function(s, n) {
+      return Sizzle(s, n)[0] || null;
     };
-  }
-  function d3_uninterpolateClamp(a, b) {
-    b = b - (a = +a) ? 1 / (b - a) : 0;
-    return function(x) {
-      return Math.max(0, Math.min(1, (x - a) * b));
+    d3_selectAll = function(s, n) {
+      return Sizzle.uniqueSort(Sizzle(s, n));
     };
+    d3_selectMatches = Sizzle.matchesSelector;
   }
-  function d3_Color() {}
-  function d3_rgb(r, g, b) {
-    return new d3_Rgb(r, g, b);
-  }
-  function d3_Rgb(r, g, b) {
-    this.r = r;
-    this.g = g;
-    this.b = 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, name;
-    m1 = /([a-z]+)\((.*)\)/i.exec(format);
-    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]));
+  d3.selection = function() {
+    return d3_selectionRoot;
+  };
+  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);
         }
       }
     }
-    if (name = d3_rgb_names.get(format)) return rgb(name.r, name.g, name.b);
-    if (format != null && format.charAt(0) === "#") {
-      if (format.length === 4) {
-        r = format.charAt(1);
-        r += r;
-        g = format.charAt(2);
-        g += g;
-        b = format.charAt(3);
-        b += b;
-      } else if (format.length === 7) {
-        r = format.substring(1, 3);
-        g = format.substring(3, 5);
-        b = format.substring(5, 7);
-      }
-      r = parseInt(r, 16);
-      g = parseInt(g, 16);
-      b = parseInt(b, 16);
-    }
-    return rgb(r, g, b);
+    return d3_selection(subgroups);
+  };
+  function d3_selection_selector(selector) {
+    return typeof selector === "function" ? selector : function() {
+      return d3_select(selector, this);
+    };
   }
-  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 {
-      s = h = 0;
+  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_hsl(h, s, l);
+    return d3_selection(subgroups);
+  };
+  function d3_selection_selectorAll(selector) {
+    return typeof selector === "function" ? selector : function() {
+      return d3_selectAll(selector, this);
+    };
   }
-  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;
-  }
-  function d3_hsl(h, s, l) {
-    return new d3_Hsl(h, s, l);
-  }
-  function d3_Hsl(h, s, l) {
-    this.h = h;
-    this.s = s;
-    this.l = l;
-  }
-  function d3_hsl_rgb(h, s, l) {
-    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;
+  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.substring(0, i);
+        name = name.substring(i + 1);
+      }
+      return d3_nsPrefix.hasOwnProperty(prefix) ? {
+        space: d3_nsPrefix[prefix],
+        local: name
+      } : name;
     }
-    function vv(h) {
-      return Math.round(v(h) * 255);
+  };
+  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;
     }
-    var m1, m2;
-    h = h % 360;
-    if (h < 0) h += 360;
-    s = 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;
-    return d3_rgb(vv(h + 120), vv(h), vv(h - 120));
-  }
-  function d3_hcl(h, c, l) {
-    return new d3_Hcl(h, c, l);
-  }
-  function d3_Hcl(h, c, l) {
-    this.h = h;
-    this.c = c;
-    this.l = l;
-  }
-  function d3_hcl_lab(h, c, l) {
-    return d3_lab(l, Math.cos(h *= Math.PI / 180) * c, Math.sin(h) * c);
-  }
-  function d3_lab(l, a, b) {
-    return new d3_Lab(l, a, b);
-  }
-  function d3_Lab(l, a, b) {
-    this.l = l;
-    this.a = a;
-    this.b = 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 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 d3_hcl(Math.atan2(b, a) / Math.PI * 180, Math.sqrt(a * a + b * b), 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));
-  }
-  function d3_selection(groups) {
-    d3_arraySubclass(groups, d3_selectionPrototype);
-    return groups;
-  }
-  function d3_selection_selector(selector) {
-    return function() {
-      return d3_select(selector, this);
-    };
-  }
-  function d3_selection_selectorAll(selector) {
-    return function() {
-      return d3_selectAll(selector, 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);
     }
@@ -398,13 +599,37 @@
       var x = value.apply(this, arguments);
       if (x == null) this.removeAttributeNS(name.space, name.local); else this.setAttributeNS(name.space, name.local, x);
     }
-    name = d3.ns.qualify(name);
     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);
@@ -413,27 +638,34 @@
       var i = -1, x = value.apply(this, arguments);
       while (++i < n) name[i](this, x);
     }
-    name = name.trim().split(/\s+/).map(d3_selection_classedName);
-    var n = name.length;
     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.className, cb = c.baseVal != null, cv = cb ? c.baseVal : c;
+      var c = node.getAttribute("class") || "";
       if (value) {
         re.lastIndex = 0;
-        if (!re.test(cv)) {
-          cv = d3_collapse(cv + " " + name);
-          if (cb) c.baseVal = cv; else node.className = cv;
-        }
-      } else if (cv) {
-        cv = d3_collapse(cv.replace(re, " "));
-        if (cb) c.baseVal = cv; else node.className = cv;
+        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) return d3_window.getComputedStyle(this.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);
@@ -447,6 +679,14 @@
     }
     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];
@@ -460,2648 +700,5021 @@
     }
     return value == null ? propertyNull : typeof value === "function" ? propertyFunction : propertyConstant;
   }
-  function d3_selection_dataNode(data) {
-    return {
-      __data__: data
-    };
-  }
-  function d3_selection_filter(selector) {
-    return function() {
-      return d3_selectMatches(this, selector);
-    };
-  }
-  function d3_selection_sortComparator(comparator) {
-    if (!arguments.length) comparator = d3.ascending;
-    return function(a, b) {
-      return comparator(a && a.__data__, b && b.__data__);
+  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) {
+    return typeof name === "function" ? name : (name = d3.ns.qualify(name)).local ? function() {
+      return this.ownerDocument.createElementNS(name.space, name.local);
+    } : function() {
+      return this.ownerDocument.createElementNS(this.namespaceURI, name);
     };
   }
-  function d3_selection_on(type, listener, capture) {
-    function onRemove() {
-      var wrapper = this[name];
-      if (wrapper) {
-        this.removeEventListener(type, wrapper, wrapper.$);
-        delete this[name];
-      }
-    }
-    function onAdd() {
-      function wrapper(e) {
-        var o = d3.event;
-        d3.event = e;
-        args[0] = node.__data__;
-        try {
-          listener.apply(node, args);
-        } finally {
-          d3.event = o;
+  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(function() {
+      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__;
         }
       }
-      var node = this, args = arguments;
-      onRemove.call(this);
-      this.addEventListener(type, this[name] = wrapper, wrapper.$ = capture);
-      wrapper._ = listener;
-    }
-    var name = "__on" + type, i = type.indexOf(".");
-    if (i > 0) type = type.substring(0, i);
-    return listener ? onAdd : onRemove;
-  }
-  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 value;
     }
-    return groups;
-  }
-  function d3_selection_enter(selection) {
-    d3_arraySubclass(selection, d3_selection_enterPrototype);
-    return selection;
-  }
-  function d3_transition(groups, id, time) {
-    d3_arraySubclass(groups, d3_transitionPrototype);
-    var tweens = new d3_Map, event = d3.dispatch("start", "end"), ease = d3_transitionEase;
-    groups.id = id;
-    groups.time = time;
-    groups.tween = function(name, tween) {
-      if (arguments.length < 2) return tweens.get(name);
-      if (tween == null) tweens.remove(name); else tweens.set(name, tween);
-      return groups;
-    };
-    groups.ease = function(value) {
-      if (!arguments.length) return ease;
-      ease = typeof value === "function" ? value : d3.ease.apply(d3, arguments);
-      return groups;
-    };
-    groups.each = function(type, listener) {
-      if (arguments.length < 2) return d3_transition_each.call(groups, type);
-      event.on(type, listener);
-      return groups;
-    };
-    d3.timer(function(elapsed) {
-      return d3_selection_each(groups, function(node, i, j) {
-        function start(elapsed) {
-          if (lock.active > id) return stop();
-          lock.active = id;
-          tweens.forEach(function(key, value) {
-            if (value = value.call(node, d, i)) {
-              tweened.push(value);
-            }
-          });
-          event.start.call(node, d, i);
-          if (!tick(elapsed)) d3.timer(tick, 0, time);
-          return 1;
+    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(), dataByKeyValue = new d3_Map(), keyValues = [], keyValue;
+        for (i = -1; ++i < n; ) {
+          keyValue = key.call(node = group[i], node.__data__, i);
+          if (nodeByKeyValue.has(keyValue)) {
+            exitNodes[i] = node;
+          } else {
+            nodeByKeyValue.set(keyValue, node);
+          }
+          keyValues.push(keyValue);
         }
-        function tick(elapsed) {
-          if (lock.active !== id) return stop();
-          var t = (elapsed - delay) / duration, e = ease(t), n = tweened.length;
-          while (n > 0) {
-            tweened[--n].call(node, e);
+        for (i = -1; ++i < m; ) {
+          keyValue = key.call(groupData, nodeData = groupData[i], i);
+          if (node = nodeByKeyValue.get(keyValue)) {
+            updateNodes[i] = node;
+            node.__data__ = nodeData;
+          } else if (!dataByKeyValue.has(keyValue)) {
+            enterNodes[i] = d3_selection_dataNode(nodeData);
           }
-          if (t >= 1) {
-            stop();
-            d3_transitionId = id;
-            event.end.call(node, d, i);
-            d3_transitionId = 0;
-            return 1;
+          dataByKeyValue.set(keyValue, nodeData);
+          nodeByKeyValue.remove(keyValue);
+        }
+        for (i = -1; ++i < n; ) {
+          if (nodeByKeyValue.has(keyValues[i])) {
+            exitNodes[i] = group[i];
           }
         }
-        function stop() {
-          if (!--lock.count) delete node.__transition__;
-          return 1;
+      } 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);
+          }
         }
-        var tweened = [], delay = node.delay, duration = node.duration, lock = (node = node.node).__transition__ || (node.__transition__ = {
-          active: 0,
-          count: 0
-        }), d = node.__data__;
-        ++lock.count;
-        delay <= elapsed ? start(elapsed) : d3.timer(start, delay, time);
-      });
-    }, 0, time);
-    return groups;
+        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;
+    };
   }
-  function d3_transition_each(callback) {
-    var id = d3_transitionId, ease = d3_transitionEase, delay = d3_transitionDelay, duration = d3_transitionDuration;
-    d3_transitionId = this.id;
-    d3_transitionEase = this.ease();
-    d3_selection_each(this, function(node, i, j) {
-      d3_transitionDelay = node.delay;
-      d3_transitionDuration = node.duration;
-      callback.call(node = node.node, node.__data__, i, j);
+  d3_selectionPrototype.each = function(callback) {
+    return d3_selection_each(this, function(node, i, j) {
+      callback.call(node, node.__data__, i, j);
     });
-    d3_transitionId = id;
-    d3_transitionEase = ease;
-    d3_transitionDelay = delay;
-    d3_transitionDuration = duration;
+  };
+  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;
+    this.each(function() {
+      ++n;
+    });
+    return n;
+  };
+  function d3_selection_enter(selection) {
+    d3_subclass(selection, d3_selection_enterPrototype);
+    return selection;
   }
-  function d3_tweenNull(d, i, a) {
-    return a != "" && d3_tweenRemove;
+  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;
+    };
   }
-  function d3_tweenByName(b, name) {
-    return d3.tween(b, d3_interpolateByName(name));
+  d3_selectionPrototype.transition = function() {
+    var id = d3_transitionInheritId || ++d3_transitionId, 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, id, transition);
+        subgroup.push(node);
+      }
+    }
+    return d3_transition(subgroups, id);
+  };
+  d3_selectionPrototype.interrupt = function() {
+    return this.each(d3_selection_interrupt);
+  };
+  function d3_selection_interrupt() {
+    var lock = this.__transition__;
+    if (lock) ++lock.active;
   }
-  function d3_timer_step() {
-    var elapsed, now = Date.now(), t1 = d3_timer_queue;
-    while (t1) {
-      elapsed = now - t1.then;
-      if (elapsed >= t1.delay) t1.flush = t1.callback(elapsed);
-      t1 = t1.next;
+  d3.select = function(node) {
+    var group = [ typeof node === "string" ? d3_select(node, d3_document) : node ];
+    group.parentNode = d3_documentElement;
+    return d3_selection([ group ]);
+  };
+  d3.selectAll = function(nodes) {
+    var group = d3_array(typeof nodes === "string" ? d3_selectAll(nodes, d3_document) : nodes);
+    group.parentNode = d3_documentElement;
+    return d3_selection([ group ]);
+  };
+  var d3_selectionRoot = d3.select(d3_documentElement);
+  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;
     }
-    var delay = d3_timer_flush() - now;
-    if (delay > 24) {
-      if (isFinite(delay)) {
-        clearTimeout(d3_timer_timeout);
-        d3_timer_timeout = setTimeout(d3_timer_step, delay);
+    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.substring(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.$);
+        delete this[name];
       }
-      d3_timer_interval = 0;
-    } else {
-      d3_timer_interval = 1;
-      d3_timer_frame(d3_timer_step);
     }
+    function onAdd() {
+      var l = wrap(listener, d3_array(arguments));
+      onRemove.call(this);
+      this.addEventListener(type, this[name] = l, l.$ = 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;
   }
-  function d3_timer_flush() {
-    var t0 = null, t1 = d3_timer_queue, then = Infinity;
-    while (t1) {
-      if (t1.flush) {
-        delete d3_timer_byId[t1.callback.id];
-        t1 = t0 ? t0.next = t1.next : d3_timer_queue = t1.next;
-      } else {
-        then = Math.min(then, t1.then + t1.delay);
-        t1 = (t0 = t1).next;
+  var d3_selection_onFilters = d3.map({
+    mouseenter: "mouseover",
+    mouseleave: "mouseout"
+  });
+  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 = "onselectstart" in d3_document ? null : d3_vendorSymbol(d3_documentElement.style, "userSelect"), d3_event_dragId = 0;
+  function d3_event_dragSuppress() {
+    var name = ".dragsuppress-" + ++d3_event_dragId, click = "click" + name, w = d3.select(d3_window).on("touchmove" + name, d3_eventPreventDefault).on("dragstart" + name, d3_eventPreventDefault).on("selectstart" + name, d3_eventPreventDefault);
+    if (d3_event_dragSelect) {
+      var style = d3_documentElement.style, select = style[d3_event_dragSelect];
+      style[d3_event_dragSelect] = "none";
     }
-    return then;
+    return function(suppressClick) {
+      w.on(name, null);
+      if (d3_event_dragSelect) style[d3_event_dragSelect] = select;
+      if (suppressClick) {
+        function off() {
+          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 = /WebKit/.test(d3_window.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 && (window.scrollX || window.scrollY)) {
-        svg = d3.select(document.body).append("svg").style("position", "absolute").style("top", 0).style("left", 0);
+      if (d3_mouse_bug44083 < 0 && (d3_window.scrollX || d3_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;
-      }
+      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 ];
   }
-  function d3_noop() {}
-  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_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;
-    }
-    if (nice = nice(x1 - x0)) {
-      domain[i0] = nice.floor(x0);
-      domain[i1] = nice.ceil(x1);
+  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;
+    }) : [];
+  };
+  d3.behavior.drag = function() {
+    var event = d3_eventDispatch(drag, "drag", "dragstart", "dragend"), origin = null, mousedown = dragstart(d3_noop, d3.mouse, "mousemove", "mouseup"), touchstart = dragstart(touchid, touchposition, "touchmove", "touchend");
+    function drag() {
+      this.on("mousedown.drag", mousedown).on("touchstart.drag", touchstart);
     }
-    return domain;
-  }
-  function d3_scale_niceDefault() {
-    return Math;
-  }
-  function d3_scale_linear(domain, range, interpolate, clamp) {
-    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 touchid() {
+      return d3.event.changedTouches[0].identifier;
     }
-    function scale(x) {
-      return output(x);
+    function touchposition(parent, id) {
+      return d3.touches(parent).filter(function(p) {
+        return p.identifier === id;
+      })[0];
     }
-    var output, input;
-    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) {
-      return d3_scale_linearTickFormat(domain, m);
-    };
-    scale.nice = function() {
-      d3_scale_nice(domain, d3_scale_linearNice);
-      return rescale();
-    };
-    scale.copy = function() {
-      return d3_scale_linear(domain, range, interpolate, clamp);
+    function dragstart(id, position, move, end) {
+      return function() {
+        var target = this, parent = target.parentNode, event_ = event.of(target, arguments), eventTarget = d3.event.target, eventId = id(), drag = eventId == null ? "drag" : "drag-" + eventId, origin_ = position(parent, eventId), dragged = 0, offset, w = d3.select(d3_window).on(move + "." + drag, moved).on(end + "." + drag, ended), dragRestore = d3_event_dragSuppress();
+        if (origin) {
+          offset = origin.apply(target, arguments);
+          offset = [ offset.x - origin_[0], offset.y - origin_[1] ];
+        } else {
+          offset = [ 0, 0 ];
+        }
+        event_({
+          type: "dragstart"
+        });
+        function moved() {
+          var p = position(parent, eventId), dx = p[0] - origin_[0], dy = p[1] - origin_[1];
+          dragged |= dx | dy;
+          origin_ = p;
+          event_({
+            type: "drag",
+            x: p[0] + offset[0],
+            y: p[1] + offset[1],
+            dx: dx,
+            dy: dy
+          });
+        }
+        function ended() {
+          w.on(move + "." + drag, null).on(end + "." + drag, null);
+          dragRestore(dragged && d3.event.target === eventTarget);
+          event_({
+            type: "dragend"
+          });
+        }
+      };
+    }
+    drag.origin = function(x) {
+      if (!arguments.length) return origin;
+      origin = x;
+      return drag;
     };
-    return rescale();
+    return d3.rebind(drag, event, "on");
+  };
+  var π = Math.PI, τ = 2 * π, halfπ = π / 2, ε = 1e-6, ε2 = ε * ε, d3_radians = π / 180, d3_degrees = 180 / π;
+  function d3_sgn(x) {
+    return x > 0 ? 1 : x < 0 ? -1 : 0;
   }
-  function d3_scale_linearRebind(scale, linear) {
-    return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp");
+  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_scale_linearNice(dx) {
-    dx = Math.pow(10, Math.round(Math.log(dx) / Math.LN10) - 1);
-    return dx && {
-      floor: function(x) {
-        return Math.floor(x / dx) * dx;
-      },
-      ceil: function(x) {
-        return Math.ceil(x / dx) * dx;
-      }
-    };
+  function d3_acos(x) {
+    return x > 1 ? 0 : x < -1 ? π : Math.acos(x);
   }
-  function d3_scale_linearTickRange(domain, m) {
-    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_asin(x) {
+    return x > 1 ? halfπ : x < -1 ? -halfπ : Math.asin(x);
   }
-  function d3_scale_linearTicks(domain, m) {
-    return d3.range.apply(d3, d3_scale_linearTickRange(domain, m));
+  function d3_sinh(x) {
+    return ((x = Math.exp(x)) - 1 / x) / 2;
   }
-  function d3_scale_linearTickFormat(domain, m) {
-    return d3.format(",." + Math.max(0, -Math.floor(Math.log(d3_scale_linearTickRange(domain, m)[2]) / Math.LN10 + .01)) + "f");
+  function d3_cosh(x) {
+    return ((x = Math.exp(x)) + 1 / x) / 2;
   }
-  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_tanh(x) {
+    return ((x = Math.exp(2 * x)) - 1) / (x + 1);
   }
-  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));
-    };
+  function d3_haversin(x) {
+    return (x = Math.sin(x / 2)) * x;
   }
-  function d3_scale_log(linear, log) {
-    function scale(x) {
-      return linear(log(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) ];
     }
-    var pow = log.pow;
-    scale.invert = function(x) {
-      return pow(linear.invert(x));
-    };
-    scale.domain = function(x) {
-      if (!arguments.length) return linear.domain().map(pow);
-      log = x[0] < 0 ? d3_scale_logn : d3_scale_logp;
-      pow = log.pow;
-      linear.domain(x.map(log));
-      return scale;
-    };
-    scale.nice = function() {
-      linear.domain(d3_scale_nice(linear.domain(), d3_scale_niceDefault));
-      return scale;
-    };
-    scale.ticks = function() {
-      var extent = d3_scaleExtent(linear.domain()), ticks = [];
-      if (extent.every(isFinite)) {
-        var i = Math.floor(extent[0]), j = Math.ceil(extent[1]), u = pow(extent[0]), v = pow(extent[1]);
-        if (log === d3_scale_logn) {
-          ticks.push(pow(i));
-          for (; i++ < j; ) for (var k = 9; k > 0; k--) ticks.push(pow(i) * k);
+    interpolate.duration = S * 1e3;
+    return interpolate;
+  };
+  d3.behavior.zoom = function() {
+    var view = {
+      x: 0,
+      y: 0,
+      k: 1
+    }, translate0, center, size = [ 960, 500 ], scaleExtent = d3_behavior_zoomInfinity, 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;
+    function zoom(g) {
+      g.on(mousedown, mousedowned).on(d3_behavior_zoomWheel + ".zoom", mousewheeled).on(mousemove, mousewheelreset).on("dblclick.zoom", dblclicked).on(touchstart, touchstarted);
+    }
+    zoom.event = function(g) {
+      g.each(function() {
+        var event_ = 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(event_);
+          }).tween("zoom:zoom", function() {
+            var dx = size[0], dy = size[1], cx = dx / 2, cy = 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(event_);
+            };
+          }).each("end.zoom", function() {
+            zoomended(event_);
+          });
         } else {
-          for (; i < j; i++) for (var k = 1; k < 10; k++) ticks.push(pow(i) * k);
-          ticks.push(pow(i));
+          this.__chart__ = view;
+          zoomstarted(event_);
+          zoomed(event_);
+          zoomended(event_);
         }
-        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 < 2) format = d3_scale_logFormat;
-      if (arguments.length < 1) return format;
-      var k = Math.max(.1, n / scale.ticks().length), f = log === d3_scale_logn ? (e = -1e-12, Math.floor) : (e = 1e-12, Math.ceil), e;
-      return function(d) {
-        return d / pow(f(log(d) + e)) <= k ? format(d) : "";
-      };
-    };
-    scale.copy = function() {
-      return d3_scale_log(linear.copy(), log);
-    };
-    return d3_scale_linearRebind(scale, linear);
-  }
-  function d3_scale_logp(x) {
-    return Math.log(x < 0 ? 0 : x) / Math.LN10;
-  }
-  function d3_scale_logn(x) {
-    return -Math.log(x > 0 ? 0 : -x) / Math.LN10;
-  }
-  function d3_scale_pow(linear, exponent) {
-    function scale(x) {
-      return linear(powp(x));
-    }
-    var powp = d3_scale_powPow(exponent), powb = d3_scale_powPow(1 / exponent);
-    scale.invert = function(x) {
-      return powb(linear.invert(x));
-    };
-    scale.domain = function(x) {
-      if (!arguments.length) return linear.domain().map(powb);
-      linear.domain(x.map(powp));
-      return scale;
-    };
-    scale.ticks = function(m) {
-      return d3_scale_linearTicks(scale.domain(), m);
-    };
-    scale.tickFormat = function(m) {
-      return d3_scale_linearTickFormat(scale.domain(), m);
-    };
-    scale.nice = function() {
-      return scale.domain(d3_scale_nice(scale.domain(), d3_scale_linearNice));
-    };
-    scale.exponent = function(x) {
-      if (!arguments.length) return exponent;
-      var domain = scale.domain();
-      powp = d3_scale_powPow(exponent = x);
-      powb = d3_scale_powPow(1 / exponent);
-      return scale.domain(domain);
-    };
-    scale.copy = function() {
-      return d3_scale_pow(linear.copy(), exponent);
-    };
-    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);
-    };
-  }
-  function d3_scale_ordinal(domain, ranger) {
-    function scale(x) {
-      return range[((index.get(x) || index.set(x, domain.push(x))) - 1) % range.length];
-    }
-    function steps(start, step) {
-      return d3.range(domain.length).map(function(i) {
-        return start + step * i;
       });
-    }
-    var index, range, rangeBand;
-    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
+    zoom.translate = function(_) {
+      if (!arguments.length) return [ view.x, view.y ];
+      view = {
+        x: +_[0],
+        y: +_[1],
+        k: view.k
       };
-      return scale;
+      rescale();
+      return zoom;
     };
-    scale.rangePoints = function(x, padding) {
-      if (arguments.length < 2) padding = 0;
-      var start = x[0], stop = x[1], step = (stop - start) / (Math.max(1, domain.length - 1) + padding);
-      range = steps(domain.length < 2 ? (start + stop) / 2 : start + step * padding / 2, step);
-      rangeBand = 0;
-      ranger = {
-        t: "rangePoints",
-        a: arguments
+    zoom.scale = function(_) {
+      if (!arguments.length) return view.k;
+      view = {
+        x: view.x,
+        y: view.y,
+        k: +_
       };
-      return scale;
+      rescale();
+      return zoom;
     };
-    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;
+    zoom.scaleExtent = function(_) {
+      if (!arguments.length) return scaleExtent;
+      scaleExtent = _ == null ? d3_behavior_zoomInfinity : [ +_[0], +_[1] ];
+      return zoom;
     };
-    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)), error = stop - start - (domain.length - padding) * step;
-      range = steps(start + Math.round(error / 2), step);
-      if (reverse) range.reverse();
-      rangeBand = Math.round(step * (1 - padding));
-      ranger = {
-        t: "rangeRoundBands",
-        a: arguments
-      };
-      return scale;
+    zoom.center = function(_) {
+      if (!arguments.length) return center;
+      center = _ && [ +_[0], +_[1] ];
+      return zoom;
     };
-    scale.rangeBand = function() {
-      return rangeBand;
+    zoom.size = function(_) {
+      if (!arguments.length) return size;
+      size = _ && [ +_[0], +_[1] ];
+      return zoom;
     };
-    scale.rangeExtent = function() {
-      return d3_scaleExtent(ranger.a[0]);
+    zoom.x = function(z) {
+      if (!arguments.length) return x1;
+      x1 = z;
+      x0 = z.copy();
+      view = {
+        x: 0,
+        y: 0,
+        k: 1
+      };
+      return zoom;
     };
-    scale.copy = function() {
-      return d3_scale_ordinal(domain, ranger);
+    zoom.y = function(z) {
+      if (!arguments.length) return y1;
+      y1 = z;
+      y0 = z.copy();
+      view = {
+        x: 0,
+        y: 0,
+        k: 1
+      };
+      return zoom;
     };
-    return scale.domain(domain);
-  }
-  function d3_scale_quantile(domain, range) {
+    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 rescale() {
-      var k = 0, n = domain.length, q = range.length;
-      thresholds = [];
-      while (++k < q) thresholds[k - 1] = d3.quantile(domain, k / q);
-      return scale;
+      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 scale(x) {
-      if (isNaN(x = +x)) return NaN;
-      return range[d3.bisect(thresholds, x)];
+    function zoomstarted(event) {
+      event({
+        type: "zoomstart"
+      });
     }
-    var thresholds;
-    scale.domain = function(x) {
-      if (!arguments.length) return domain;
-      domain = x.filter(function(d) {
-        return !isNaN(d);
-      }).sort(d3.ascending);
-      return rescale();
-    };
-    scale.range = function(x) {
-      if (!arguments.length) return range;
-      range = x;
-      return rescale();
-    };
-    scale.quantiles = function() {
-      return thresholds;
-    };
-    scale.copy = function() {
-      return d3_scale_quantile(domain, range);
-    };
-    return rescale();
-  }
-  function d3_scale_quantize(x0, x1, range) {
-    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;
-    }
-    var kx, i;
-    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.copy = function() {
-      return d3_scale_quantize(x0, x1, range);
-    };
-    return rescale();
-  }
-  function d3_scale_threshold(domain, range) {
-    function scale(x) {
-      return range[d3.bisect(domain, x)];
+    function zoomed(event) {
+      rescale();
+      event({
+        type: "zoom",
+        scale: view.k,
+        translate: [ view.x, view.y ]
+      });
     }
-    scale.domain = function(_) {
-      if (!arguments.length) return domain;
-      domain = _;
-      return scale;
-    };
-    scale.range = function(_) {
-      if (!arguments.length) return range;
-      range = _;
-      return scale;
-    };
-    scale.copy = function() {
-      return d3_scale_threshold(domain, range);
-    };
-    return scale;
-  }
-  function d3_scale_identity(domain) {
-    function identity(x) {
-      return +x;
+    function zoomended(event) {
+      event({
+        type: "zoomend"
+      });
     }
-    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) {
-      return d3_scale_linearTickFormat(domain, m);
-    };
-    identity.copy = function() {
-      return d3_scale_identity(domain);
-    };
-    return identity;
-  }
-  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_line(projection) {
-    function line(data) {
-      function segment() {
-        segments.push("M", interpolate(projection(points), tension));
+    function mousedowned() {
+      var target = this, event_ = event.of(target, arguments), eventTarget = d3.event.target, dragged = 0, w = d3.select(d3_window).on(mousemove, moved).on(mouseup, ended), l = location(d3.mouse(target)), dragRestore = d3_event_dragSuppress();
+      d3_selection_interrupt.call(target);
+      zoomstarted(event_);
+      function moved() {
+        dragged = 1;
+        translateTo(d3.mouse(target), l);
+        zoomed(event_);
+      }
+      function ended() {
+        w.on(mousemove, d3_window === target ? mousewheelreset : null).on(mouseup, null);
+        dragRestore(dragged && d3.event.target === eventTarget);
+        zoomended(event_);
+      }
+    }
+    function touchstarted() {
+      var target = this, event_ = event.of(target, arguments), locations0 = {}, distance0 = 0, scale0, eventId = d3.event.changedTouches[0].identifier, touchmove = "touchmove.zoom-" + eventId, touchend = "touchend.zoom-" + eventId, w = d3.select(d3_window).on(touchmove, moved).on(touchend, ended), t = d3.select(target).on(mousedown, null).on(touchstart, started), dragRestore = d3_event_dragSuppress();
+      d3_selection_interrupt.call(target);
+      started();
+      zoomstarted(event_);
+      function relocate() {
+        var touches = d3.touches(target);
+        scale0 = view.k;
+        touches.forEach(function(t) {
+          if (t.identifier in locations0) locations0[t.identifier] = location(t);
+        });
+        return touches;
       }
-      var segments = [], points = [], i = -1, n = data.length, d, fx = d3_functor(x), fy = d3_functor(y);
-      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 = [];
+      function started() {
+        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], l = locations0[p.identifier];
+            scaleTo(view.k * 2);
+            translateTo(p, l);
+            d3_eventPreventDefault();
+            zoomed(event_);
+          }
+          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;
         }
       }
-      if (points.length) segment();
-      return segments.length ? segments.join("") : null;
+      function moved() {
+        var touches = d3.touches(target), p0, l0, p1, l1;
+        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(event_);
+      }
+      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();
+          }
+        }
+        w.on(touchmove, null).on(touchend, null);
+        t.on(mousedown, mousedowned).on(touchstart, touchstarted);
+        dragRestore();
+        zoomended(event_);
+      }
+    }
+    function mousewheeled() {
+      var event_ = event.of(this, arguments);
+      if (mousewheelTimer) clearTimeout(mousewheelTimer); else d3_selection_interrupt.call(this), 
+      zoomstarted(event_);
+      mousewheelTimer = setTimeout(function() {
+        mousewheelTimer = null;
+        zoomended(event_);
+      }, 50);
+      d3_eventPreventDefault();
+      var point = center || d3.mouse(this);
+      if (!translate0) translate0 = location(point);
+      scaleTo(Math.pow(2, d3_behavior_zoomDelta() * .002) * view.k);
+      translateTo(point, translate0);
+      zoomed(event_);
+    }
+    function mousewheelreset() {
+      translate0 = null;
     }
-    var x = d3_svg_lineX, y = d3_svg_lineY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, tension = .7;
-    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;
+    function dblclicked() {
+      var event_ = event.of(this, arguments), p = d3.mouse(this), l = location(p), k = Math.log(view.k) / Math.LN2;
+      zoomstarted(event_);
+      scaleTo(Math.pow(2, d3.event.shiftKey ? Math.ceil(k) - 1 : Math.floor(k) + 1));
+      translateTo(p, l);
+      zoomed(event_);
+      zoomended(event_);
+    }
+    return d3.rebind(zoom, event, "on");
+  };
+  var d3_behavior_zoomInfinity = [ 0, Infinity ];
+  var d3_behavior_zoomDelta, 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 d3_Color() {}
+  d3_Color.prototype.toString = function() {
+    return this.rgb() + "";
+  };
+  d3.hsl = function(h, s, l) {
+    return arguments.length === 1 ? h instanceof d3_Hsl ? d3_hsl(h.h, h.s, h.l) : d3_rgb_parse("" + h, d3_rgb_hsl, d3_hsl) : d3_hsl(+h, +s, +l);
+  };
+  function d3_hsl(h, s, l) {
+    return new d3_Hsl(h, s, l);
   }
-  function d3_svg_lineX(d) {
-    return d[0];
+  function d3_Hsl(h, s, l) {
+    this.h = h;
+    this.s = s;
+    this.l = l;
   }
-  function d3_svg_lineY(d) {
-    return d[1];
+  var d3_hslPrototype = d3_Hsl.prototype = new d3_Color();
+  d3_hslPrototype.brighter = function(k) {
+    k = Math.pow(.7, arguments.length ? k : 1);
+    return d3_hsl(this.h, this.s, this.l / k);
+  };
+  d3_hslPrototype.darker = function(k) {
+    k = Math.pow(.7, arguments.length ? k : 1);
+    return 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 d3_rgb(vv(h + 120), vv(h), vv(h - 120));
   }
-  function d3_svg_lineLinear(points) {
-    return points.join("L");
+  d3.hcl = function(h, c, l) {
+    return arguments.length === 1 ? h instanceof d3_Hcl ? 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) : d3_hcl(+h, +c, +l);
+  };
+  function d3_hcl(h, c, l) {
+    return new d3_Hcl(h, c, l);
   }
-  function d3_svg_lineLinearClosed(points) {
-    return d3_svg_lineLinear(points) + "Z";
+  function d3_Hcl(h, c, l) {
+    this.h = h;
+    this.c = c;
+    this.l = l;
   }
-  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("");
+  var d3_hclPrototype = d3_Hcl.prototype = new d3_Color();
+  d3_hclPrototype.brighter = function(k) {
+    return d3_hcl(this.h, this.c, Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)));
+  };
+  d3_hclPrototype.darker = function(k) {
+    return 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 d3_lab(l, Math.cos(h *= d3_radians) * c, Math.sin(h) * c);
   }
-  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("");
+  d3.lab = function(l, a, b) {
+    return arguments.length === 1 ? l instanceof d3_Lab ? d3_lab(l.l, l.a, l.b) : l instanceof d3_Hcl ? d3_hcl_lab(l.l, l.c, l.h) : d3_rgb_lab((l = d3.rgb(l)).r, l.g, l.b) : d3_lab(+l, +a, +b);
+  };
+  function d3_lab(l, a, b) {
+    return new d3_Lab(l, a, b);
   }
-  function d3_svg_lineCardinalOpen(points, tension) {
-    return points.length < 4 ? d3_svg_lineLinear(points) : points[1] + d3_svg_lineHermite(points.slice(1, points.length - 1), d3_svg_lineCardinalTangents(points, tension));
+  function d3_Lab(l, a, b) {
+    this.l = l;
+    this.a = a;
+    this.b = b;
   }
-  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));
+  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 d3_lab(Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);
+  };
+  d3_labPrototype.darker = function(k) {
+    return 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 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_svg_lineCardinal(points, tension, closed) {
-    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineCardinalTangents(points, tension));
+  function d3_lab_hcl(l, a, b) {
+    return l > 0 ? d3_hcl(Math.atan2(b, a) * d3_degrees, Math.sqrt(a * a + b * b), l) : d3_hcl(NaN, NaN, l);
   }
-  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_lab_xyz(x) {
+    return x > .206893034 ? x * x * x : (x - 4 / 29) / 7.787037;
   }
-  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_xyz_lab(x) {
+    return x > .008856 ? Math.pow(x, 1 / 3) : 7.787037 * x + 4 / 29;
   }
-  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 ];
-    d3_svg_lineBasisBezier(path, px, py);
-    while (++i < n) {
-      pi = points[i];
-      px.shift();
-      px.push(pi[0]);
-      py.shift();
-      py.push(pi[1]);
-      d3_svg_lineBasisBezier(path, px, py);
-    }
-    i = -1;
-    while (++i < 2) {
-      px.shift();
-      px.push(pi[0]);
-      py.shift();
-      py.push(pi[1]);
-      d3_svg_lineBasisBezier(path, px, py);
-    }
-    return path.jo

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