text: (function() {
    function d3_class(ctor, properties) {
      try {
        for (var key in properties) {
          Object.defineProperty(ctor.prototype, key, {
            value: properties[key],
            enumerable: false
          });
        }
      } catch (e) {
        ctor.prototype = properties;
      }
    }
    function d3_arrayCopy(pseudoarray) {
      var i = -1, n = pseudoarray.length, array = [];
      while (++i < n) array.push(pseudoarray[i]);
      return array;
    }
    function d3_arraySlice(pseudoarray) {
      return Array.prototype.slice.call(pseudoarray);
    }
    function d3_Map() {}
    function d3_identity(d) {
      return d;
    }
    function d3_this() {
      return this;
    }
    function d3_true() {
      return true;
    }
    function d3_functor(v) {
      return typeof v === "function" ? v : function() {
        return v;
      };
    }
    function d3_rebind(target, source, method) {
      return function() {
        var value = method.apply(source, arguments);
        return arguments.length ? target : value;
      };
    }
    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;
    }
    function d3_dispatch() {}
    function d3_dispatch_event(dispatch) {
      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;
        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;
    }
    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.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;
    }
    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;
    }
    function d3_uninterpolateNumber(a, b) {
      b = b - (a = +a) ? 1 / (b - a) : 0;
      return function(x) {
        return (x - a) * b;
      };
    }
    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));
      };
    }
    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]));
          }
        }
      }
      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);
    }
    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;
      }
      return 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;
    }
    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;
      }
      function vv(h) {
        return Math.round(v(h) * 255);
      }
      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);
      };
    }
    function d3_selection_attr(name, value) {
      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);
      }
      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_selection_classedRe(name) {
      return new RegExp("(?:^|\\s+)" + d3.requote(name) + "(?:\\s+|$)", "g");
    }
    function d3_selection_classed(name, value) {
      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);
      }
      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;
        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;
        }
      };
    }
    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;
    }
    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;
    }
    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__);
      };
    }
    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;
          }
        }
        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 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 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);
            }
            if (t >= 1) {
              stop();
              d3_transitionId = id;
              event.end.call(node, d, i);
              d3_transitionId = 0;
              return 1;
            }
          }
          function stop() {
            if (!--lock.count) delete node.__transition__;
            return 1;
          }
          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;
    }
    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_transitionId = id;
      d3_transitionEase = ease;
      d3_transitionDelay = delay;
      d3_transitionDuration = duration;
      return this;
    }
    function d3_tweenNull(d, i, a) {
      return a != "" && d3_tweenRemove;
    }
    function d3_tweenByName(b, name) {
      return d3.tween(b, d3_interpolateByName(name));
    }
    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;
      }
      var delay = d3_timer_flush() - 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);
      }
    }
    function d3_timer_flush() {
      var t0 = null, t1 = d3_timer_queue, then = Infinity;
      while (t1) {
        if (t1.flush) {
          t1 = t0 ? t0.next = t1.next : d3_timer_queue = t1.next;
        } else {
          then = Math.min(then, t1.then + t1.delay);
          t1 = (t0 = t1).next;
        }
      }
      return then;
    }
    function d3_mousePoint(container, e) {
      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);
          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 ];
    }
    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);
      }
      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 scale(x) {
        return output(x);
      }
      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);
      };
      return rescale();
    }
    function d3_scale_linearRebind(scale, linear) {
      return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp");
    }
    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_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_scale_linearTicks(domain, m) {
      return d3.range.apply(d3, d3_scale_linearTickRange(domain, m));
    }
    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_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_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_scale_log(linear, log) {
      function scale(x) {
        return linear(log(x));
      }
      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);
          } else {
            for (; i < j; i++) for (var k = 1; k < 10; k++) ticks.push(pow(i) * k);
            ticks.push(pow(i));
          }
          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
        };
        return scale;
      };
      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
        };
        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)), 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;
      };
      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);
    }
    function d3_scale_quantile(domain, range) {
      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;
      }
      function scale(x) {
        if (isNaN(x = +x)) return NaN;
        return range[d3.bisect(thresholds, x)];
      }
      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)];
      }
      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;
      }
      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));
        }
        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 = [];
          }
        }
        if (points.length) segment();
        return segments.length ? segments.join("") : 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 d3_svg_lineX(d) {
      return d[0];
    }
    function d3_svg_lineY(d) {
      return d[1];
    }
    function d3_svg_lineLinear(points) {
      return points.join("L");
    }
    function d3_svg_lineLinearClosed(points) {
      return d3_svg_lineLinear(points) + "Z";
    }
    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, points.length - 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, closed) {
      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 ];
      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.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];
    }
    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 (Math.abs(d) < 1e-6) {
          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));
    }
    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] + d3_svg_arcOffset;
        point[0] = r * Math.cos(a);
        point[1] = r * Math.sin(a);
      }
      return points;
    }
    function d3_svg_area(projection) {
      function area(data) {
        function segment() {
          segments.push("M", interpolate(projection(points1), tension), L, interpolateReverse(projection(points0.reverse()), tension), "Z");
        }
        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;
        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;
      }
      var x0 = d3_svg_lineX, x1 = d3_svg_lineX, y0 = 0, y1 = d3_svg_lineY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, interpolateReverse = interpolate, L = "L", tension = .7;
      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;
    }
    function d3_svg_chordSource(d) {
      return d.source;
    }
    function d3_svg_chordTarget(d) {
      return d.target;
    }
    function d3_svg_chordRadius(d) {
      return d.radius;
    }
    function d3_svg_chordStartAngle(d) {
      return d.startAngle;
    }
    function d3_svg_chordEndAngle(d) {
      return d.endAngle;
    }
    function d3_svg_diagonalProjection(d) {
      return [ d.x, d.y ];
    }
    function d3_svg_diagonalRadialProjection(projection) {
      return function() {
        var d = projection.apply(this, arguments), r = d[0], a = d[1] + d3_svg_arcOffset;
        return [ r * Math.cos(a), r * Math.sin(a) ];
      };
    }
    function d3_svg_symbolSize() {
      return 64;
    }
    function d3_svg_symbolType() {
      return "circle";
    }
    function d3_svg_symbolCircle(size) {
      var r = Math.sqrt(size / Math.PI);
      return "M0," + r + "A" + r + "," + r + " 0 1,1 0," + -r + "A" + r + "," + r + " 0 1,1 0," + r + "Z";
    }
    function d3_svg_axisX(selection, x) {
      selection.attr("transform", function(d) {
        return "translate(" + x(d) + ",0)";
      });
    }
    function d3_svg_axisY(selection, y) {
      selection.attr("transform", function(d) {
        return "translate(0," + y(d) + ")";
      });
    }
    function d3_svg_axisSubdivide(scale, ticks, m) {
      subticks = [];
      if (m && ticks.length > 1) {
        var extent = d3_scaleExtent(scale.domain()), subticks, i = -1, n = ticks.length, d = (ticks[1] - ticks[0]) / ++m, j, v;
        while (++i < n) {
          for (j = m; --j > 0; ) {
            if ((v = +ticks[i] - j * d) >= extent[0]) {
              subticks.push(v);
            }
          }
        }
        for (--i, j = 0; ++j < m && (v = +ticks[i] + j * d) < extent[1]; ) {
          subticks.push(v);
        }
      }
      return subticks;
    }
    function d3_behavior_zoomDelta() {
      if (!d3_behavior_zoomDiv) {
        d3_behavior_zoomDiv = d3.select("body").append("div").style("visibility", "hidden").style("top", 0).style("height", 0).style("width", 0).style("overflow-y", "scroll").append("div").style("height", "2000px").node().parentNode;
      }
      var e = d3.event, delta;
      try {
        d3_behavior_zoomDiv.scrollTop = 1e3;
        d3_behavior_zoomDiv.dispatchEvent(e);
        delta = 1e3 - d3_behavior_zoomDiv.scrollTop;
      } catch (error) {
        delta = e.wheelDelta || -e.detail * 5;
      }
      return delta;
    }
    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;
    }
    function d3_layout_forceDragstart(d) {
      d.fixed |= 2;
    }
    function d3_layout_forceDragend(d) {
      d.fixed &= 1;
    }
    function d3_layout_forceMouseover(d) {
      d.fixed |= 4;
    }
    function d3_layout_forceMouseout(d) {
      d.fixed &= 3;
    }
    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;
    }
    function d3_layout_forceLinkDistance(link) {
      return 20;
    }
    function d3_layout_forceLinkStrength(link) {
      return 1;
    }
    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;
    }
    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];
    }
    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) ];
    }
    function d3_layout_hierarchyRebind(object, hierarchy) {
      d3.rebind(object, hierarchy, "sort", "children", "value");
      object.links = d3_layout_hierarchyLinks;
      object.nodes = function(d) {
        d3_layout_hierarchyInline = true;
        return (object.nodes = object)(d);
      };
      return object;
    }
    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
          };
        });
      }));
    }
    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 dr * dr - dx * dx - dy * dy > .001;
    }
    function d3_layout_packSiblings(node) {
      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);
      }
      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;
      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;
      }
    }
    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;
    }
    function d3_layout_treeSeparation(a, b) {
      return a.parent == b.parent ? 1 : 2;
    }
    function d3_layout_treeLeft(node) {
      var children = node.children;
      return children && children.length ? children[0] : node._tree.thread;
    }
    function d3_layout_treeRight(node) {
      var children = node.children, n;
      return children && (n = children.length) ? children[n - 1] : node._tree.thread;
    }
    function d3_layout_treeSearch(node, compare) {
      var children = node.children;
      if (children && (n = children.length)) {
        var child, n, i = -1;
        while (++i < n) {
          if (compare(child = d3_layout_treeSearch(children[i], compare), node) > 0) {
            node = child;
          }
        }
      }
      return node;
    }
    function d3_layout_treeRightmost(a, b) {
      return a.x - b.x;
    }
    function d3_layout_treeLeftmost(a, b) {
      return b.x - a.x;
    }
    function d3_layout_treeDeepest(a, b) {
      return a.depth - b.depth;
    }
    function d3_layout_treeVisitAfter(node, callback) {
      function visit(node, previousSibling) {
        var children = node.children;
        if (children && (n = children.length)) {
          var child, previousChild = null, i = -1, n;
          while (++i < n) {
            child = children[i];
            visit(child, previousChild);
            previousChild = child;
          }
        }
        callback(node, previousSibling);
      }
      visit(node, null);
    }
    function d3_layout_treeShift(node) {
      var shift = 0, change = 0, children = node.children, i = children.length, child;
      while (--i >= 0) {
        child = children[i]._tree;
        child.prelim += shift;
        child.mod += shift;
        shift += child.shift + (change += child.change);
      }
    }
    function d3_layout_treeMove(ancestor, node, shift) {
      ancestor = ancestor._tree;
      node = node._tree;
      var change = shift / (node.number - ancestor.number);
      ancestor.change += change;
      node.change -= change;
      node.shift += shift;
      node.prelim += shift;
      node.mod += shift;
    }
    function d3_layout_treeAncestor(vim, node, ancestor) {
      return vim._tree.ancestor.parent == node.parent ? vim._tree.ancestor : ancestor;
    }
    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
      };
    }
    function d3_dsv(delimiter, mimeType) {
      function dsv(url, callback) {
        d3.text(url, mimeType, function(text) {
          callback(text && dsv.parse(text));
        });
      }
      function formatRow(row) {
        return row.map(formatValue).join(delimiter);
      }
      function formatValue(text) {
        return reFormat.test(text) ? '"' + text.replace(/\"/g, '""') + '"' : text;
      }
      var reParse = new RegExp("\r\n|[" + delimiter + "\r\n]", "g"), reFormat = new RegExp('["' + delimiter + "\n]"), delimiterCode = delimiter.charCodeAt(0);
      dsv.parse = function(text) {
        var header;
        return dsv.parseRows(text, function(row, i) {
          if (i) {
            var o = {}, j = -1, m = header.length;
            while (++j < m) o[header[j]] = row[j];
            return o;
          } else {
            header = row;
            return null;
          }
        });
      };
      dsv.parseRows = function(text, f) {
        function token() {
          if (reParse.lastIndex >= text.length) return EOF;
          if (eol) {
            eol = false;
            return EOL;
          }
          var j = reParse.lastIndex;
          if (text.charCodeAt(j) === 34) {
            var i = j;
            while (i++ < text.length) {
              if (text.charCodeAt(i) === 34) {
                if (text.charCodeAt(i + 1) !== 34) break;
                i++;
              }
            }
            reParse.lastIndex = i + 2;
            var c = text.charCodeAt(i + 1);
            if (c === 13) {
              eol = true;
              if (text.charCodeAt(i + 2) === 10) reParse.lastIndex++;
            } else if (c === 10) {
              eol = true;
            }
            return text.substring(j + 1, i).replace(/""/g, '"');
          }
          var m = reParse.exec(text);
          if (m) {
            eol = m[0].charCodeAt(0) !== delimiterCode;
            return text.substring(j, m.index);
          }
          reParse.lastIndex = text.length;
          return text.substring(j);
        }
        var EOL = {}, EOF = {}, rows = [], n = 0, t, eol;
        reParse.lastIndex = 0;
        while ((t = token()) !== EOF) {
          var a = [];
          while (t !== EOL && t !== EOF) {
            a.push(t);
            t = token();
          }
          if (f && !(a = f(a, n++))) continue;
          rows.push(a);
        }
        return rows;
      };
      dsv.format = function(rows) {
        return rows.map(formatRow).join("\n");
      };
      return dsv;
    }
    function d3_geo_type(types, defaultValue) {
      return function(object) {
        return object && types.hasOwnProperty(object.type) ? types[object.type](object) : defaultValue;
      };
    }
    function d3_path_circle(radius) {
      return "m0," + radius + "a" + radius + "," + radius + " 0 1,1 0," + -2 * radius + "a" + radius + "," + radius + " 0 1,1 0," + +2 * radius + "z";
    }
    function d3_geo_bounds(o, f) {
      if (d3_geo_boundsTypes.hasOwnProperty(o.type)) d3_geo_boundsTypes[o.type](o, f);
    }
    function d3_geo_boundsFeature(o, f) {
      d3_geo_bounds(o.geometry, f);
    }
    function d3_geo_boundsFeatureCollection(o, f) {
      for (var a = o.features, i = 0, n = a.length; i < n; i++) {
        d3_geo_bounds(a[i].geometry, f);
      }
    }
    function d3_geo_boundsGeometryCollection(o, f) {
      for (var a = o.geometries, i = 0, n = a.length; i < n; i++) {
        d3_geo_bounds(a[i], f);
      }
    }
    function d3_geo_boundsLineString(o, f) {
      for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) {
        f.apply(null, a[i]);
      }
    }
    function d3_geo_boundsMultiLineString(o, f) {
      for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) {
        for (var b = a[i], j = 0, m = b.length; j < m; j++) {
          f.apply(null, b[j]);
        }
      }
    }
    function d3_geo_boundsMultiPolygon(o, f) {
      for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) {
        for (var b = a[i][0], j = 0, m = b.length; j < m; j++) {
          f.apply(null, b[j]);
        }
      }
    }
    function d3_geo_boundsPoint(o, f) {
      f.apply(null, o.coordinates);
    }
    function d3_geo_boundsPolygon(o, f) {
      for (var a = o.coordinates[0], i = 0, n = a.length; i < n; i++) {
        f.apply(null, a[i]);
      }
    }
    function d3_geo_greatArcSource(d) {
      return d.source;
    }
    function d3_geo_greatArcTarget(d) {
      return d.target;
    }
    function d3_geo_greatArcInterpolator() {
      function interpolate(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_geo_radians, Math.atan2(z, Math.sqrt(x * x + y * y)) / d3_geo_radians ];
      }
      var x0, y0, cy0, sy0, kx0, ky0, x1, y1, cy1, sy1, kx1, ky1, d, k;
      interpolate.distance = function() {
        if (d == null) k = 1 / Math.sin(d = Math.acos(Math.max(-1, Math.min(1, sy0 * sy1 + cy0 * cy1 * Math.cos(x1 - x0)))));
        return d;
      };
      interpolate.source = function(_) {
        var cx0 = Math.cos(x0 = _[0] * d3_geo_radians), sx0 = Math.sin(x0);
        cy0 = Math.cos(y0 = _[1] * d3_geo_radians);
        sy0 = Math.sin(y0);
        kx0 = cy0 * cx0;
        ky0 = cy0 * sx0;
        d = null;
        return interpolate;
      };
      interpolate.target = function(_) {
        var cx1 = Math.cos(x1 = _[0] * d3_geo_radians), sx1 = Math.sin(x1);
        cy1 = Math.cos(y1 = _[1] * d3_geo_radians);
        sy1 = Math.sin(y1);
        kx1 = cy1 * cx1;
        ky1 = cy1 * sx1;
        d = null;
        return interpolate;
      };
      return interpolate;
    }
    function d3_geo_greatArcInterpolate(a, b) {
      var i = d3_geo_greatArcInterpolator().source(a).target(b);
      i.distance();
      return i;
    }
    function d3_geom_contourStart(grid) {
      var x = 0, y = 0;
      while (true) {
        if (grid(x, y)) {
          return [ x, y ];
        }
        if (x === 0) {
          x = y + 1;
          y = 0;
        } else {
          x = x - 1;
          y = y + 1;
        }
      }
    }
    function d3_geom_hullCCW(i1, i2, i3, v) {
      var t, a, b, c, d, e, f;
      t = v[i1];
      a = t[0];
      b = t[1];
      t = v[i2];
      c = t[0];
      d = t[1];
      t = v[i3];
      e = t[0];
      f = t[1];
      return (f - b) * (c - a) - (d - b) * (e - a) > 0;
    }
    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], x2 = d[0], x3 = a[0], x4 = b[0], y1 = c[1], y2 = d[1], y3 = a[1], y4 = b[1], x13 = x1 - x3, x21 = x2 - x1, x43 = x4 - x3, y13 = y1 - y3, y21 = y2 - y1, y43 = y4 - y3, ua = (x43 * y13 - y43 * x13) / (y43 * x21 - x43 * y21);
      return [ x1 + ua * x21, y1 + ua * y21 ];
    }
    function d3_voronoi_tessellate(vertices, callback) {
      var Sites = {
        list: vertices.map(function(v, i) {
          return {
            index: i,
            x: v[0],
            y: v[1]
          };
        }).sort(function(a, b) {
          return a.y < b.y ? -1 : a.y > b.y ? 1 : a.x < b.x ? -1 : a.x > b.x ? 1 : 0;
        }),
        bottomSite: null
      };
      var EdgeList = {
        list: [],
        leftEnd: null,
        rightEnd: null,
        init: function() {
          EdgeList.leftEnd = EdgeList.createHalfEdge(null, "l");
          EdgeList.rightEnd = EdgeList.createHalfEdge(null, "l");
          EdgeList.leftEnd.r = EdgeList.rightEnd;
          EdgeList.rightEnd.l = EdgeList.leftEnd;
          EdgeList.list.unshift(EdgeList.leftEnd, EdgeList.rightEnd);
        },
        createHalfEdge: function(edge, side) {
          return {
            edge: edge,
            side: side,
            vertex: null,
            l: null,
            r: null
          };
        },
        insert: function(lb, he) {
          he.l = lb;
          he.r = lb.r;
          lb.r.l = he;
          lb.r = he;
        },
        leftBound: function(p) {
          var he = EdgeList.leftEnd;
          do {
            he = he.r;
          } while (he != EdgeList.rightEnd && Geom.rightOf(he, p));
          he = he.l;
          return he;
        },
        del: function(he) {
          he.l.r = he.r;
          he.r.l = he.l;
          he.edge = null;
        },
        right: function(he) {
          return he.r;
        },
        left: function(he) {
          return he.l;
        },
        leftRegion: function(he) {
          return he.edge == null ? Sites.bottomSite : he.edge.region[he.side];
        },
        rightRegion: function(he) {
          return he.edge == null ? Sites.bottomSite : he.edge.region[d3_voronoi_opposite[he.side]];
        }
      };
      var Geom = {
        bisect: function(s1, s2) {
          var newEdge = {
            region: {
              l: s1,
              r: s2
            },
            ep: {
              l: null,
              r: null
            }
          };
          var dx = s2.x - s1.x, dy = s2.y - s1.y, adx = dx > 0 ? dx : -dx, ady = dy > 0 ? dy : -dy;
          newEdge.c = s1.x * dx + s1.y * dy + (dx * dx + dy * dy) * .5;
          if (adx > ady) {
            newEdge.a = 1;
            newEdge.b = dy / dx;
            newEdge.c /= dx;
          } else {
            newEdge.b = 1;
            newEdge.a = dx / dy;
            newEdge.c /= dy;
          }
          return newEdge;
        },
        intersect: function(el1, el2) {
          var e1 = el1.edge, e2 = el2.edge;
          if (!e1 || !e2 || e1.region.r == e2.region.r) {
            return null;
          }
          var d = e1.a * e2.b - e1.b * e2.a;
          if (Math.abs(d) < 1e-10) {
            return null;
          }
          var xint = (e1.c * e2.b - e2.c * e1.b) / d, yint = (e2.c * e1.a - e1.c * e2.a) / d, e1r = e1.region.r, e2r = e2.region.r, el, e;
          if (e1r.y < e2r.y || e1r.y == e2r.y && e1r.x < e2r.x) {
            el = el1;
            e = e1;
          } else {
            el = el2;
            e = e2;
          }
          var rightOfSite = xint >= e.region.r.x;
          if (rightOfSite && el.side === "l" || !rightOfSite && el.side === "r") {
            return null;
          }
          return {
            x: xint,
            y: yint
          };
        },
        rightOf: function(he, p) {
          var e = he.edge, topsite = e.region.r, rightOfSite = p.x > topsite.x;
          if (rightOfSite && he.side === "l") {
            return 1;
          }
          if (!rightOfSite && he.side === "r") {
            return 0;
          }
          if (e.a === 1) {
            var dyp = p.y - topsite.y, dxp = p.x - topsite.x, fast = 0, above = 0;
            if (!rightOfSite && e.b < 0 || rightOfSite && e.b >= 0) {
              above = fast = dyp >= e.b * dxp;
            } else {
              above = p.x + p.y * e.b > e.c;
              if (e.b < 0) {
                above = !above;
              }
              if (!above) {
                fast = 1;
              }
            }
            if (!fast) {
              var dxs = topsite.x - e.region.l.x;
              above = e.b * (dxp * dxp - dyp * dyp) < dxs * dyp * (1 + 2 * dxp / dxs + e.b * e.b);
              if (e.b < 0) {
                above = !above;
              }
            }
          } else {
            var yl = e.c - e.a * p.x, t1 = p.y - yl, t2 = p.x - topsite.x, t3 = yl - topsite.y;
            above = t1 * t1 > t2 * t2 + t3 * t3;
          }
          return he.side === "l" ? above : !above;
        },
        endPoint: function(edge, side, site) {
          edge.ep[side] = site;
          if (!edge.ep[d3_voronoi_opposite[side]]) return;
          callback(edge);
        },
        distance: function(s, t) {
          var dx = s.x - t.x, dy = s.y - t.y;
          return Math.sqrt(dx * dx + dy * dy);
        }
      };
      var EventQueue = {
        list: [],
        insert: function(he, site, offset) {
          he.vertex = site;
          he.ystar = site.y + offset;
          for (var i = 0, list = EventQueue.list, l = list.length; i < l; i++) {
            var next = list[i];
            if (he.ystar > next.ystar || he.ystar == next.ystar && site.x > next.vertex.x) {
              continue;
            } else {
              break;
            }
          }
          list.splice(i, 0, he);
        },
        del: function(he) {
          for (var i = 0, ls = EventQueue.list, l = ls.length; i < l && ls[i] != he; ++i) {}
          ls.splice(i, 1);
        },
        empty: function() {
          return EventQueue.list.length === 0;
        },
        nextEvent: function(he) {
          for (var i = 0, ls = EventQueue.list, l = ls.length; i < l; ++i) {
            if (ls[i] == he) return ls[i + 1];
          }
          return null;
        },
        min: function() {
          var elem = EventQueue.list[0];
          return {
            x: elem.vertex.x,
            y: elem.ystar
          };
        },
        extractMin: function() {
          return EventQueue.list.shift();
        }
      };
      EdgeList.init();
      Sites.bottomSite = Sites.list.shift();
      var newSite = Sites.list.shift(), newIntStar;
      var lbnd, rbnd, llbnd, rrbnd, bisector;
      var bot, top, temp, p, v;
      var e, pm;
      while (true) {
        if (!EventQueue.empty()) {
          newIntStar = EventQueue.min();
        }
        if (newSite && (EventQueue.empty() || newSite.y < newIntStar.y || newSite.y == newIntStar.y && newSite.x < newIntStar.x)) {
          lbnd = EdgeList.leftBound(newSite);
          rbnd = EdgeList.right(lbnd);
          bot = EdgeList.rightRegion(lbnd);
          e = Geom.bisect(bot, newSite);
          bisector = EdgeList.createHalfEdge(e, "l");
          EdgeList.insert(lbnd, bisector);
          p = Geom.intersect(lbnd, bisector);
          if (p) {
            EventQueue.del(lbnd);
            EventQueue.insert(lbnd, p, Geom.distance(p, newSite));
          }
          lbnd = bisector;
          bisector = EdgeList.createHalfEdge(e, "r");
          EdgeList.insert(lbnd, bisector);
          p = Geom.intersect(bisector, rbnd);
          if (p) {
            EventQueue.insert(bisector, p, Geom.distance(p, newSite));
          }
          newSite = Sites.list.shift();
        } else if (!EventQueue.empty()) {
          lbnd = EventQueue.extractMin();
          llbnd = EdgeList.left(lbnd);
          rbnd = EdgeList.right(lbnd);
          rrbnd = EdgeList.right(rbnd);
          bot = EdgeList.leftRegion(lbnd);
          top = EdgeList.rightRegion(rbnd);
          v = lbnd.vertex;
          Geom.endPoint(lbnd.edge, lbnd.side, v);
          Geom.endPoint(rbnd.edge, rbnd.side, v);
          EdgeList.del(lbnd);
          EventQueue.del(rbnd);
          EdgeList.del(rbnd);
          pm = "l";
          if (bot.y > top.y) {
            temp = bot;
            bot = top;
            top = temp;
            pm = "r";
          }
          e = Geom.bisect(bot, top);
          bisector = EdgeList.createHalfEdge(e, pm);
          EdgeList.insert(llbnd, bisector);
          Geom.endPoint(e, d3_voronoi_opposite[pm], v);
          p = Geom.intersect(llbnd, bisector);
          if (p) {
            EventQueue.del(llbnd);
            EventQueue.insert(llbnd, p, Geom.distance(p, bot));
          }
          p = Geom.intersect(bisector, rrbnd);
          if (p) {
            EventQueue.insert(bisector, p, Geom.distance(p, bot));
          }
        } else {
          break;
        }
      }
      for (lbnd = EdgeList.right(EdgeList.leftEnd); lbnd != EdgeList.rightEnd; lbnd = EdgeList.right(lbnd)) {
        callback(lbnd.edge);
      }
    }
    function d3_geom_quadtreeNode() {
      return {
        leaf: true,
        nodes: [],
        point: 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_quadtreePoint(p) {
      return {
        x: p[0],
        y: p[1]
      };
    }
    function d3_time_utc() {
      this._ = new Date(arguments.length > 1 ? Date.UTC.apply(this, arguments) : arguments[0]);
    }
    function d3_time_formatAbbreviate(name) {
      return name.substring(0, 3);
    }
    function d3_time_parse(date, template, string, j) {
      var c, p, i = 0, n = template.length, m = string.length;
      while (i < n) {
        if (j >= m) return -1;
        c = template.charCodeAt(i++);
        if (c == 37) {
          p = d3_time_parsers[template.charAt(i++)];
          if (!p || (j = p(date, string, j)) < 0) return -1;
        } else if (c != string.charCodeAt(j++)) {
          return -1;
        }
      }
      return j;
    }
    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_parseWeekdayAbbrev(date, string, i) {
      d3_time_dayAbbrevRe.lastIndex = 0;
      var n = d3_time_dayAbbrevRe.exec(string.substring(i));
      return n ? i += n[0].length : -1;
    }
    function d3_time_parseWeekday(date, string, i) {
      d3_time_dayRe.lastIndex = 0;
      var n = d3_time_dayRe.exec(string.substring(i));
      return n ? i += n[0].length : -1;
    }
    function d3_time_parseMonthAbbrev(date, string, i) {
      d3_time_monthAbbrevRe.lastIndex = 0;
      var n = d3_time_monthAbbrevRe.exec(string.substring(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.substring(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_parseFullYear(date, string, i) {
      d3_time_numberRe.lastIndex = 0;
      var n = d3_time_numberRe.exec(string.substring(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.substring(i, i + 2));
      return n ? (date.y = d3_time_expandYear(+n[0]), i += n[0].length) : -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.substring(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.substring(i, i + 2));
      return n ? (date.d = +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.substring(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.substring(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.substring(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.substring(i, i + 3));
      return n ? (date.L = +n[0], i += n[0].length) : -1;
    }
    function d3_time_parseAmPm(date, string, i) {
      var n = d3_time_amPmLookup.get(string.substring(i, i += 2).toLowerCase());
      return n == null ? -1 : (date.p = n, i);
    }
    function d3_time_zone(d) {
      var z = d.getTimezoneOffset(), zs = z > 0 ? "-" : "+", zh = ~~(Math.abs(z) / 60), zm = Math.abs(z) % 60;
      return zs + d3_time_zfill2(zh) + d3_time_zfill2(zm);
    }
    function d3_time_formatIsoNative(date) {
      return date.toISOString();
    }
    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_time(date - 1)), 1);
        return date;
      }
      function offset(date, k) {
        step(date = new d3_time(+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_time = d3_time_utc;
          var utc = new d3_time_utc;
          utc._ = t0;
          return range(utc, t1, dt);
        } finally {
          d3_time = 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_time = d3_time_utc;
          var utc = new d3_time_utc;
          utc._ = date;
          return method(utc, k)._;
        } finally {
          d3_time = Date;
        }
      };
    }
    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;
      };
      scale.nice = function(m) {
        return scale.domain(d3_scale_nice(scale.domain(), function() {
          return m;
        }));
      };
      scale.ticks = function(m, k) {
        var extent = d3_time_scaleExtent(scale.domain());
        if (typeof m !== "function") {
          var span = extent[1] - extent[0], target = span / m, i = d3.bisect(d3_time_scaleSteps, target);
          if (i == d3_time_scaleSteps.length) return methods.year(extent, m);
          if (!i) return linear.ticks(m).map(d3_time_scaleDate);
          if (Math.log(target / d3_time_scaleSteps[i - 1]) < Math.log(d3_time_scaleSteps[i] / target)) --i;
          m = methods[i];
          k = m[1];
          m = m[0].range;
        }
        return m(extent[0], new Date(+extent[1] + 1), k);
      };
      scale.tickFormat = function() {
        return format;
      };
      scale.copy = function() {
        return d3_time_scale(linear.copy(), methods, format);
      };
      return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp");
    }
    function d3_time_scaleExtent(domain) {
      var start = domain[0], stop = domain[domain.length - 1];
      return start < stop ? [ start, stop ] : [ stop, start ];
    }
    function d3_time_scaleDate(t) {
      return new Date(t);
    }
    function d3_time_scaleFormat(formats) {
      return function(date) {
        var i = formats.length - 1, f = formats[i];
        while (!f[1](date)) f = formats[--i];
        return f[0](date);
      };
    }
    function d3_time_scaleSetYear(y) {
      var d = new Date(y, 0, 1);
      d.setFullYear(y);
      return d;
    }
    function d3_time_scaleGetYear(d) {
      var y = d.getFullYear(), d0 = d3_time_scaleSetYear(y), d1 = d3_time_scaleSetYear(y + 1);
      return y + (d - d0) / (d1 - d0);
    }
    function d3_time_scaleUTCSetYear(y) {
      var d = new Date(Date.UTC(y, 0, 1));
      d.setUTCFullYear(y);
      return d;
    }
    function d3_time_scaleUTCGetYear(d) {
      var y = d.getUTCFullYear(), d0 = d3_time_scaleUTCSetYear(y), d1 = d3_time_scaleUTCSetYear(y + 1);
      return y + (d - d0) / (d1 - d0);
    }
    if (!Date.now) Date.now = function() {
      return +(new Date);
    };
    try {
      document.createElement("div").style.setProperty("opacity", 0, "");
    } catch (error) {
      var d3_style_prototype = CSSStyleDeclaration.prototype, d3_style_setProperty = d3_style_prototype.setProperty;
      d3_style_prototype.setProperty = function(name, value, priority) {
        d3_style_setProperty.call(this, name, value + "", priority);
      };
    }
    d3 = {
      version: "2.10.2"
    };
    var d3_array = d3_arraySlice;
    try {
      d3_array(document.documentElement.childNodes)[0].nodeType;
    } catch (e) {
      d3_array = d3_arrayCopy;
    }
    var d3_arraySubclass = [].__proto__ ? function(array, prototype) {
      array.__proto__ = prototype;
    } : function(array, prototype) {
      for (var property in prototype) array[property] = prototype[property];
    };
    d3.map = function(object) {
      var map = new d3_Map;
      for (var key in object) map.set(key, object[key]);
      return map;
    };
    d3_class(d3_Map, {
      has: function(key) {
        return d3_map_prefix + key in this;
      },
      get: function(key) {
        return this[d3_map_prefix + key];
      },
      set: function(key, value) {
        return this[d3_map_prefix + key] = value;
      },
      remove: function(key) {
        key = d3_map_prefix + key;
        return key in this && delete this[key];
      },
      keys: function() {
        var keys = [];
        this.forEach(function(key) {
          keys.push(key);
        });
        return 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;
      },
      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 = "\0", d3_map_prefixCode = d3_map_prefix.charCodeAt(0);
    d3.functor = d3_functor;
    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;
    };
    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.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.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.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.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(µ, σ) {
        var n = arguments.length;
        if (n < 2) σ = 1;
        if (n < 1) µ = 0;
        var random = d3.random.normal();
        return function() {
          return Math.exp(µ + σ * random());
        };
      },
      irwinHall: function(m) {
        return function() {
          for (var s = 0, j = 0; j < m; j++) s += Math.random();
          return s / m;
        };
      }
    };
    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;
    };
    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.transpose = function(matrix) {
      return d3.zip.apply(d3, matrix);
    };
    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;
    };
    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.first = function(array, f) {
      var i = 0, n = array.length, a = array[0], b;
      if (arguments.length === 1) f = d3.ascending;
      while (++i < n) {
        if (f.call(array, a, b = array[i]) > 0) {
          a = b;
        }
      }
      return a;
    };
    d3.last = function(array, f) {
      var i = 0, n = array.length, a = array[0], b;
      if (arguments.length === 1) f = d3.ascending;
      while (++i < n) {
        if (f.call(array, a, b = array[i]) <= 0) {
          a = b;
        }
      }
      return a;
    };
    d3.nest = function() {
      function map(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, valuesByKey = new d3_Map, values, o = {};
        while (++i < n) {
          if (values = valuesByKey.get(keyValue = key(object = array[i]))) {
            values.push(object);
          } else {
            valuesByKey.set(keyValue, [ object ]);
          }
        }
        valuesByKey.forEach(function(keyValue, values) {
          o[keyValue] = map(values, depth);
        });
        return o;
      }
      function entries(map, depth) {
        if (depth >= keys.length) return map;
        var a = [], sortKey = sortKeys[depth++], key;
        for (key in map) {
          a.push({
            key: key,
            values: entries(map[key], depth)
          });
        }
        if (sortKey) a.sort(function(a, b) {
          return sortKey(a.key, b.key);
        });
        return a;
      }
      var nest = {}, keys = [], sortKeys = [], sortValues, rollup;
      nest.map = function(array) {
        return map(array, 0);
      };
      nest.entries = function(array) {
        return entries(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.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.permute = function(array, indexes) {
      var permutes = [], i = -1, n = indexes.length;
      while (++i < n) permutes[i] = array[indexes[i]];
      return permutes;
    };
    d3.merge = function(arrays) {
      return Array.prototype.concat.apply([], arrays);
    };
    d3.split = function(array, f) {
      var arrays = [], values = [], value, i = -1, n = array.length;
      if (arguments.length < 2) f = d3_splitter;
      while (++i < n) {
        if (f.call(values, value = array[i], i)) {
          values = [];
        } else {
          if (!values.length) arrays.push(values);
          values.push(value);
        }
      }
      return arrays;
    };
    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(Math.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;
    };
    d3.requote = function(s) {
      return s.replace(d3_requote_re, "\\$&");
    };
    var d3_requote_re = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g;
    d3.round = function(x, n) {
      return n ? Math.round(x * (n = Math.pow(10, n))) / n : Math.round(x);
    };
    d3.xhr = function(url, mime, callback) {
      var req = new XMLHttpRequest;
      if (arguments.length < 3) callback = mime, mime = null; else if (mime && req.overrideMimeType) req.overrideMimeType(mime);
      req.open("GET", url, true);
      if (mime) req.setRequestHeader("Accept", mime);
      req.onreadystatechange = function() {
        if (req.readyState === 4) {
          var s = req.status;
          callback(!s && req.response || s >= 200 && s < 300 || s === 304 ? req : null);
        }
      };
      req.send(null);
    };
    d3.text = function(url, mime, callback) {
      function ready(req) {
        callback(req && req.responseText);
      }
      if (arguments.length < 3) {
        callback = mime;
        mime = null;
      }
      d3.xhr(url, mime, ready);
    };
    d3.json = function(url, callback) {
      d3.text(url, "application/json", function(text) {
        callback(text ? JSON.parse(text) : null);
      });
    };
    d3.html = function(url, callback) {
      d3.text(url, "text/html", function(text) {
        if (text != null) {
          var range = document.createRange();
          range.selectNode(document.body);
          text = range.createContextualFragment(text);
        }
        callback(text);
      });
    };
    d3.xml = function(url, mime, callback) {
      function ready(req) {
        callback(req && req.responseXML);
      }
      if (arguments.length < 3) {
        callback = mime;
        mime = null;
      }
      d3.xhr(url, mime, ready);
    };
    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;
      }
    };
    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;
    };
    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);
      }
      return arguments.length < 2 ? this[type].on(name) : this[type].on(name, listener);
    };
    d3.format = function(specifier) {
      var match = d3_format_re.exec(specifier), fill = match[1] || " ", sign = match[3] || "", zfill = match[5], width = +match[6], comma = match[7], precision = match[8], type = match[9], scale = 1, suffix = "", integer = false;
      if (precision) precision = +precision.substring(1);
      if (zfill) {
        fill = "0";
        if (comma) width -= Math.floor((width - 1) / 4);
      }
      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 "d":
        integer = true;
        precision = 0;
        break;
       case "s":
        scale = -1;
        type = "r";
        break;
      }
      if (type == "r" && !precision) type = "g";
      type = d3_format_types.get(type) || d3_format_typeDefault;
      return function(value) {
        if (integer && value % 1) return "";
        var negative = value < 0 && (value = -value) ? "-" : sign;
        if (scale < 0) {
          var prefix = d3.formatPrefix(value, precision);
          value = prefix.scale(value);
          suffix = prefix.symbol;
        } else {
          value *= scale;
        }
        value = type(value, precision);
        if (zfill) {
          var length = value.length + negative.length;
          if (length < width) value = (new Array(width - length + 1)).join(fill) + value;
          if (comma) value = d3_format_group(value);
          value = negative + value;
        } else {
          if (comma) value = d3_format_group(value);
          value = negative + value;
          var length = value.length;
          if (length < width) value = (new Array(width - length + 1)).join(fill) + value;
        }
        return value + suffix;
      };
    };
    var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?(#)?(0)?([0-9]+)?(,)?(\.[0-9]+)?([a-zA-Z%])?/;
    var d3_format_types = d3.map({
      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 d3.round(x, p = d3_format_precision(x, p)).toFixed(Math.max(0, Math.min(20, p)));
      }
    });
    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 <= 0 ? i + 1 : i - 1) / 3) * 3));
      }
      return d3_formatPrefixes[8 + i / 3];
    };
    var d3_ease_quad = d3_ease_poly(2), d3_ease_cubic = d3_ease_poly(3), d3_ease_default = function() {
      return d3_ease_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_ease_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.substring(0, i) : name, m = i >= 0 ? name.substring(i + 1) : "in";
      t = d3_ease.get(t) || d3_ease_default;
      m = d3_ease_mode.get(m) || d3_ease_identity;
      return d3_ease_clamp(m(t.apply(null, Array.prototype.slice.call(arguments, 1))));
    };
    d3.event = null;
    d3.transform = function(string) {
      var g = document.createElementNS(d3.ns.prefix.svg, "g");
      return (d3.transform = function(string) {
        g.setAttribute("transform", string);
        var t = g.transform.baseVal.consolidate();
        return new d3_transform(t ? t.matrix : d3_transformIdentity);
      })(string);
    };
    d3_transform.prototype.toString = function() {
      return "translate(" + this.translate + ")rotate(" + this.rotate + ")skewX(" + this.skew + ")scale(" + this.scale + ")";
    };
    var d3_transformDegrees = 180 / Math.PI, d3_transformIdentity = {
      a: 1,
      b: 0,
      c: 0,
      d: 1,
      e: 0,
      f: 0
    };
    d3.interpolate = function(a, b) {
      var i = d3.interpolators.length, f;
      while (--i >= 0 && !(f = d3.interpolators[i](a, b))) ;
      return f;
    };
    d3.interpolateNumber = function(a, b) {
      b -= a;
      return function(t) {
        return a + b * t;
      };
    };
    d3.interpolateRound = function(a, b) {
      b -= a;
      return function(t) {
        return Math.round(a + b * t);
      };
    };
    d3.interpolateString = function(a, b) {
      var m, i, j, s0 = 0, s1 = 0, s = [], q = [], n, o;
      d3_interpolate_number.lastIndex = 0;
      for (i = 0; m = d3_interpolate_number.exec(b); ++i) {
        if (m.index) s.push(b.substring(s0, s1 = m.index));
        q.push({
          i: s.length,
          x: m[0]
        });
        s.push(null);
        s0 = d3_interpolate_number.lastIndex;
      }
      if (s0 < b.length) s.push(b.substring(s0));
      for (i = 0, n = q.length; (m = d3_interpolate_number.exec(a)) && i < n; ++i) {
        o = q[i];
        if (o.x == m[0]) {
          if (o.i) {
            if (s[o.i + 1] == null) {
              s[o.i - 1] += o.x;
              s.splice(o.i, 1);
              for (j = i + 1; j < n; ++j) q[j].i--;
            } else {
              s[o.i - 1] += o.x + s[o.i + 1];
              s.splice(o.i, 2);
              for (j = i + 1; j < n; ++j) q[j].i -= 2;
            }
          } else {
            if (s[o.i + 1] == null) {
              s[o.i] = o.x;
            } else {
              s[o.i] = o.x + s[o.i + 1];
              s.splice(o.i + 1, 1);
              for (j = i + 1; j < n; ++j) q[j].i--;
            }
          }
          q.splice(i, 1);
          n--;
          i--;
        } else {
          o.x = d3.interpolateNumber(parseFloat(m[0]), parseFloat(o.x));
        }
      }
      while (i < n) {
        o = q.pop();
        if (s[o.i + 1] == null) {
          s[o.i] = o.x;
        } else {
          s[o.i] = o.x + s[o.i + 1];
          s.splice(o.i + 1, 1);
        }
        n--;
      }
      if (s.length === 1) {
        return s[0] == null ? q[0].x : function() {
          return b;
        };
      }
      return function(t) {
        for (i = 0; i < n; ++i) s[(o = q[i]).i] = o.x(t);
        return s.join("");
      };
    };
    d3.interpolateTransform = function(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("");
      };
    };
    d3.interpolateRgb = function(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.interpolateHsl = function(a, b) {
      a = d3.hsl(a);
      b = d3.hsl(b);
      var h0 = a.h, s0 = a.s, l0 = a.l, h1 = b.h - h0, s1 = b.s - s0, l1 = b.l - l0;
      if (h1 > 180) h1 -= 360; else if (h1 < -180) h1 += 360;
      return function(t) {
        return d3_hsl_rgb(h0 + h1 * t, s0 + s1 * t, l0 + l1 * t) + "";
      };
    };
    d3.interpolateLab = function(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.interpolateHcl = function(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 (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.interpolateArray = function(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;
      };
    };
    d3.interpolateObject = function(a, b) {
      var i = {}, c = {}, k;
      for (k in a) {
        if (k in b) {
          i[k] = d3_interpolateByName(k)(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;
      };
    };
    var d3_interpolate_number = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g;
    d3.interpolators = [ d3.interpolateObject, function(a, b) {
      return b instanceof Array && d3.interpolateArray(a, b);
    }, function(a, b) {
      return (typeof a === "string" || typeof b === "string") && d3.interpolateString(a + "", b + "");
    }, function(a, b) {
      return (typeof b === "string" ? d3_rgb_names.has(b) || /^(#|rgb\(|hsl\()/.test(b) : b instanceof d3_Rgb || b instanceof d3_Hsl) && d3.interpolateRgb(a, b);
    }, function(a, b) {
      return !isNaN(a = +a) && !isNaN(b = +b) && d3.interpolateNumber(a, b);
    } ];
    d3.rgb = function(r, g, b) {
      return arguments.length === 1 ? r instanceof d3_Rgb ? d3_rgb(r.r, r.g, r.b) : d3_rgb_parse("" + r, d3_rgb, d3_hsl_rgb) : d3_rgb(~~r, ~~g, ~~b);
    };
    d3_Rgb.prototype.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 d3_rgb(i, i, i);
      if (r && r < i) r = i;
      if (g && g < i) g = i;
      if (b && b < i) b = i;
      return d3_rgb(Math.min(255, Math.floor(r / k)), Math.min(255, Math.floor(g / k)), Math.min(255, Math.floor(b / k)));
    };
    d3_Rgb.prototype.darker = function(k) {
      k = Math.pow(.7, arguments.length ? k : 1);
      return d3_rgb(Math.floor(k * this.r), Math.floor(k * this.g), Math.floor(k * this.b));
    };
    d3_Rgb.prototype.hsl = function() {
      return d3_rgb_hsl(this.r, this.g, this.b);
    };
    d3_Rgb.prototype.toString = function() {
      return "#" + d3_rgb_hex(this.r) + d3_rgb_hex(this.g) + d3_rgb_hex(this.b);
    };
    var d3_rgb_names = d3.map({
      aliceblue: "#f0f8ff",
      antiquewhite: "#faebd7",
      aqua: "#00ffff",
      aquamarine: "#7fffd4",
      azure: "#f0ffff",
      beige: "#f5f5dc",
      bisque: "#ffe4c4",
      black: "#000000",
      blanchedalmond: "#ffebcd",
      blue: "#0000ff",
      blueviolet: "#8a2be2",
      brown: "#a52a2a",
      burlywood: "#deb887",
      cadetblue: "#5f9ea0",
      chartreuse: "#7fff00",
      chocolate: "#d2691e",
      coral: "#ff7f50",
      cornflowerblue: "#6495ed",
      cornsilk: "#fff8dc",
      crimson: "#dc143c",
      cyan: "#00ffff",
      darkblue: "#00008b",
      darkcyan: "#008b8b",
      darkgoldenrod: "#b8860b",
      darkgray: "#a9a9a9",
      darkgreen: "#006400",
      darkgrey: "#a9a9a9",
      darkkhaki: "#bdb76b",
      darkmagenta: "#8b008b",
      darkolivegreen: "#556b2f",
      darkorange: "#ff8c00",
      darkorchid: "#9932cc",
      darkred: "#8b0000",
      darksalmon: "#e9967a",
      darkseagreen: "#8fbc8f",
      darkslateblue: "#483d8b",
      darkslategray: "#2f4f4f",
      darkslategrey: "#2f4f4f",
      darkturquoise: "#00ced1",
      darkviolet: "#9400d3",
      deeppink: "#ff1493",
      deepskyblue: "#00bfff",
      dimgray: "#696969",
      dimgrey: "#696969",
      dodgerblue: "#1e90ff",
      firebrick: "#b22222",
      floralwhite: "#fffaf0",
      forestgreen: "#228b22",
      fuchsia: "#ff00ff",
      gainsboro: "#dcdcdc",
      ghostwhite: "#f8f8ff",
      gold: "#ffd700",
      goldenrod: "#daa520",
      gray: "#808080",
      green: "#008000",
      greenyellow: "#adff2f",
      grey: "#808080",
      honeydew: "#f0fff0",
      hotpink: "#ff69b4",
      indianred: "#cd5c5c",
      indigo: "#4b0082",
      ivory: "#fffff0",
      khaki: "#f0e68c",
      lavender: "#e6e6fa",
      lavenderblush: "#fff0f5",
      lawngreen: "#7cfc00",
      lemonchiffon: "#fffacd",
      lightblue: "#add8e6",
      lightcoral: "#f08080",
      lightcyan: "#e0ffff",
      lightgoldenrodyellow: "#fafad2",
      lightgray: "#d3d3d3",
      lightgreen: "#90ee90",
      lightgrey: "#d3d3d3",
      lightpink: "#ffb6c1",
      lightsalmon: "#ffa07a",
      lightseagreen: "#20b2aa",
      lightskyblue: "#87cefa",
      lightslategray: "#778899",
      lightslategrey: "#778899",
      lightsteelblue: "#b0c4de",
      lightyellow: "#ffffe0",
      lime: "#00ff00",
      limegreen: "#32cd32",
      linen: "#faf0e6",
      magenta: "#ff00ff",
      maroon: "#800000",
      mediumaquamarine: "#66cdaa",
      mediumblue: "#0000cd",
      mediumorchid: "#ba55d3",
      mediumpurple: "#9370db",
      mediumseagreen: "#3cb371",
      mediumslateblue: "#7b68ee",
      mediumspringgreen: "#00fa9a",
      mediumturquoise: "#48d1cc",
      mediumvioletred: "#c71585",
      midnightblue: "#191970",
      mintcream: "#f5fffa",
      mistyrose: "#ffe4e1",
      moccasin: "#ffe4b5",
      navajowhite: "#ffdead",
      navy: "#000080",
      oldlace: "#fdf5e6",
      olive: "#808000",
      olivedrab: "#6b8e23",
      orange: "#ffa500",
      orangered: "#ff4500",
      orchid: "#da70d6",
      palegoldenrod: "#eee8aa",
      palegreen: "#98fb98",
      paleturquoise: "#afeeee",
      palevioletred: "#db7093",
      papayawhip: "#ffefd5",
      peachpuff: "#ffdab9",
      peru: "#cd853f",
      pink: "#ffc0cb",
      plum: "#dda0dd",
      powderblue: "#b0e0e6",
      purple: "#800080",
      red: "#ff0000",
      rosybrown: "#bc8f8f",
      royalblue: "#4169e1",
      saddlebrown: "#8b4513",
      salmon: "#fa8072",
      sandybrown: "#f4a460",
      seagreen: "#2e8b57",
      seashell: "#fff5ee",
      sienna: "#a0522d",
      silver: "#c0c0c0",
      skyblue: "#87ceeb",
      slateblue: "#6a5acd",
      slategray: "#708090",
      slategrey: "#708090",
      snow: "#fffafa",
      springgreen: "#00ff7f",
      steelblue: "#4682b4",
      tan: "#d2b48c",
      teal: "#008080",
      thistle: "#d8bfd8",
      tomato: "#ff6347",
      turquoise: "#40e0d0",
      violet: "#ee82ee",
      wheat: "#f5deb3",
      white: "#ffffff",
      whitesmoke: "#f5f5f5",
      yellow: "#ffff00",
      yellowgreen: "#9acd32"
    });
    d3_rgb_names.forEach(function(key, value) {
      d3_rgb_names.set(key, d3_rgb_parse(value, d3_rgb, d3_hsl_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);
    };
    d3_Hsl.prototype.brighter = function(k) {
      k = Math.pow(.7, arguments.length ? k : 1);
      return d3_hsl(this.h, this.s, this.l / k);
    };
    d3_Hsl.prototype.darker = function(k) {
      k = Math.pow(.7, arguments.length ? k : 1);
      return d3_hsl(this.h, this.s, k * this.l);
    };
    d3_Hsl.prototype.rgb = function() {
      return d3_hsl_rgb(this.h, this.s, this.l);
    };
    d3_Hsl.prototype.toString = function() {
      return this.rgb().toString();
    };
    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);
    };
    d3_Hcl.prototype.brighter = function(k) {
      return d3_hcl(this.h, this.c, Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)));
    };
    d3_Hcl.prototype.darker = function(k) {
      return d3_hcl(this.h, this.c, Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)));
    };
    d3_Hcl.prototype.rgb = function() {
      return d3_hcl_lab(this.h, this.c, this.l).rgb();
    };
    d3_Hcl.prototype.toString = function() {
      return this.rgb() + "";
    };
    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);
    };
    var d3_lab_K = 18;
    var d3_lab_X = .95047, d3_lab_Y = 1, d3_lab_Z = 1.08883;
    d3_Lab.prototype.brighter = function(k) {
      return d3_lab(Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);
    };
    d3_Lab.prototype.darker = function(k) {
      return d3_lab(Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);
    };
    d3_Lab.prototype.rgb = function() {
      return d3_lab_rgb(this.l, this.a, this.b);
    };
    d3_Lab.prototype.toString = function() {
      return this.rgb() + "";
    };
    var d3_select = function(s, n) {
      return n.querySelector(s);
    }, d3_selectAll = function(s, n) {
      return n.querySelectorAll(s);
    }, d3_selectRoot = document.documentElement, d3_selectMatcher = d3_selectRoot.matchesSelector || d3_selectRoot.webkitMatchesSelector || d3_selectRoot.mozMatchesSelector || d3_selectRoot.msMatchesSelector || d3_selectRoot.oMatchesSelector, 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;
      };
      d3_selectAll = function(s, n) {
        return Sizzle.uniqueSort(Sizzle(s, n));
      };
      d3_selectMatches = Sizzle.matchesSelector;
    }
    var d3_selectionPrototype = [];
    d3.selection = function() {
      return d3_selectionRoot;
    };
    d3.selection.prototype = d3_selectionPrototype;
    d3_selectionPrototype.select = function(selector) {
      var subgroups = [], subgroup, subnode, group, node;
      if (typeof selector !== "function") 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));
            if (subnode && "__data__" in node) subnode.__data__ = node.__data__;
          } else {
            subgroup.push(null);
          }
        }
      }
      return d3_selection(subgroups);
    };
    d3_selectionPrototype.selectAll = function(selector) {
      var subgroups = [], subgroup, node;
      if (typeof selector !== "function") 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)));
            subgroup.parentNode = node;
          }
        }
      }
      return d3_selection(subgroups);
    };
    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));
    };
    d3_selectionPrototype.classed = function(name, value) {
      if (arguments.length < 2) {
        if (typeof name === "string") {
          var node = this.node(), n = (name = name.trim().split(/^|\s+/g)).length, i = -1;
          if (value = node.classList) {
            while (++i < n) if (!value.contains(name[i])) return false;
          } else {
            value = node.className;
            if (value.baseVal != null) value = value.baseVal;
            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));
    };
    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 window.getComputedStyle(this.node(), null).getPropertyValue(name);
        priority = "";
      }
      return this.each(d3_selection_style(name, value, priority));
    };
    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));
    };
    d3_selectionPrototype.text = function(value) {
      return arguments.length < 1 ? this.node().textContent : 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;
      });
    };
    d3_selectionPrototype.html = function(value) {
      return arguments.length < 1 ? this.node().innerHTML : 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;
      });
    };
    d3_selectionPrototype.append = function(name) {
      function append() {
        return this.appendChild(document.createElementNS(this.namespaceURI, name));
      }
      function appendNS() {
        return this.appendChild(document.createElementNS(name.space, name.local));
      }
      name = d3.ns.qualify(name);
      return this.select(name.local ? appendNS : append);
    };
    d3_selectionPrototype.insert = function(name, before) {
      function insert() {
        return this.insertBefore(document.createElementNS(this.namespaceURI, name), d3_select(before, this));
      }
      function insertNS() {
        return this.insertBefore(document.createElementNS(name.space, name.local), d3_select(before, this));
      }
      name = d3.ns.qualify(name);
      return this.select(name.local ? insertNS : insert);
    };
    d3_selectionPrototype.remove = function() {
      return this.each(function() {
        var parent = this.parentNode;
        if (parent) parent.removeChild(this);
      });
    };
    d3_selectionPrototype.data = function(value, key) {
      function bind(group, groupData) {
        var i, n = group.length, m = groupData.length, n0 = Math.min(n, m), n1 = Math.max(n, m), updateNodes = [], enterNodes = [], exitNodes = [], node, nodeData;
        if (key) {
          var nodeByKeyValue = new d3_Map, keyValues = [], keyValue, j = groupData.length;
          for (i = -1; ++i < n; ) {
            keyValue = key.call(node = group[i], node.__data__, i);
            if (nodeByKeyValue.has(keyValue)) {
              exitNodes[j++] = node;
            } else {
              nodeByKeyValue.set(keyValue, node);
            }
            keyValues.push(keyValue);
          }
          for (i = -1; ++i < m; ) {
            keyValue = key.call(groupData, nodeData = groupData[i], i);
            if (nodeByKeyValue.has(keyValue)) {
              updateNodes[i] = node = nodeByKeyValue.get(keyValue);
              node.__data__ = nodeData;
              enterNodes[i] = exitNodes[i] = null;
            } else {
              enterNodes[i] = d3_selection_dataNode(nodeData);
              updateNodes[i] = exitNodes[i] = null;
            }
            nodeByKeyValue.remove(keyValue);
          }
          for (i = -1; ++i < n; ) {
            if (nodeByKeyValue.has(keyValues[i])) {
              exitNodes[i] = group[i];
            }
          }
        } else {
          for (i = -1; ++i < n0; ) {
            node = group[i];
            nodeData = groupData[i];
            if (node) {
              node.__data__ = nodeData;
              updateNodes[i] = node;
              enterNodes[i] = exitNodes[i] = null;
            } else {
              enterNodes[i] = d3_selection_dataNode(nodeData);
              updateNodes[i] = exitNodes[i] = null;
            }
          }
          for (; i < m; ++i) {
            enterNodes[i] = d3_selection_dataNode(groupData[i]);
            updateNodes[i] = exitNodes[i] = null;
          }
          for (; i < n1; ++i) {
            exitNodes[i] = group[i];
            enterNodes[i] = updateNodes[i] = null;
          }
        }
        enterNodes.update = updateNodes;
        enterNodes.parentNode = updateNodes.parentNode = exitNodes.parentNode = group.parentNode;
        enter.push(enterNodes);
        update.push(updateNodes);
        exit.push(exitNodes);
      }
      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;
      }
      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;
    };
    d3_selectionPrototype.datum = d3_selectionPrototype.map = function(value) {
      return arguments.length < 1 ? this.property("__data__") : this.property("__data__", value);
    };
    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)) {
            subgroup.push(node);
          }
        }
      }
      return d3_selection(subgroups);
    };
    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();
    };
    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));
    };
    d3_selectionPrototype.each = function(callback) {
      return d3_selection_each(this, function(node, i, j) {
        callback.call(node, node.__data__, i, j);
      });
    };
    d3_selectionPrototype.call = function(callback) {
      callback.apply(this, (arguments[0] = this, arguments));
      return this;
    };
    d3_selectionPrototype.empty = function() {
      return !this.node();
    };
    d3_selectionPrototype.node = function(callback) {
      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.transition = function() {
      var subgroups = [], subgroup, node;
      for (var j = -1, m = this.length; ++j < m; ) {
        subgroups.push(subgroup = []);
        for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
          subgroup.push((node = group[i]) ? {
            node: node,
            delay: d3_transitionDelay,
            duration: d3_transitionDuration
          } : null);
        }
      }
      return d3_transition(subgroups, d3_transitionId || ++d3_transitionNextId, Date.now());
    };
    var d3_selectionRoot = d3_selection([ [ document ] ]);
    d3_selectionRoot[0].parentNode = d3_selectRoot;
    d3.select = function(selector) {
      return typeof selector === "string" ? d3_selectionRoot.select(selector) : d3_selection([ [ selector ] ]);
    };
    d3.selectAll = function(selector) {
      return typeof selector === "string" ? d3_selectionRoot.selectAll(selector) : d3_selection([ d3_array(selector) ]);
    };
    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.insert = d3_selectionPrototype.insert;
    d3_selection_enterPrototype.empty = d3_selectionPrototype.empty;
    d3_selection_enterPrototype.node = d3_selectionPrototype.node;
    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));
            subnode.__data__ = node.__data__;
          } else {
            subgroup.push(null);
          }
        }
      }
      return d3_selection(subgroups);
    };
    var d3_transitionPrototype = [], d3_transitionNextId = 0, d3_transitionId = 0, d3_transitionDefaultDelay = 0, d3_transitionDefaultDuration = 250, d3_transitionDefaultEase = d3.ease("cubic-in-out"), d3_transitionDelay = d3_transitionDefaultDelay, d3_transitionDuration = d3_transitionDefaultDuration, d3_transitionEase = d3_transitionDefaultEase;
    d3_transitionPrototype.call = d3_selectionPrototype.call;
    d3.transition = function(selection) {
      return arguments.length ? d3_transitionId ? selection.transition() : selection : d3_selectionRoot.transition();
    };
    d3.transition.prototype = d3_transitionPrototype;
    d3_transitionPrototype.select = function(selector) {
      var subgroups = [], subgroup, subnode, node;
      if (typeof selector !== "function") 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, node.node.__data__, i))) {
            if ("__data__" in node.node) subnode.__data__ = node.node.__data__;
            subgroup.push({
              node: subnode,
              delay: node.delay,
              duration: node.duration
            });
          } else {
            subgroup.push(null);
          }
        }
      }
      return d3_transition(subgroups, this.id, this.time).ease(this.ease());
    };
    d3_transitionPrototype.selectAll = function(selector) {
      var subgroups = [], subgroup, subnodes, node;
      if (typeof selector !== "function") 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]) {
            subnodes = selector.call(node.node, node.node.__data__, i);
            subgroups.push(subgroup = []);
            for (var k = -1, o = subnodes.length; ++k < o; ) {
              subgroup.push({
                node: subnodes[k],
                delay: node.delay,
                duration: node.duration
              });
            }
          }
        }
      }
      return d3_transition(subgroups, this.id, this.time).ease(this.ease());
    };
    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, node.node.__data__, i)) {
            subgroup.push(node);
          }
        }
      }
      return d3_transition(subgroups, this.id, this.time).ease(this.ease());
    };
    d3_transitionPrototype.attr = function(name, value) {
      if (arguments.length < 2) {
        for (value in name) this.attrTween(value, d3_tweenByName(name[value], value));
        return this;
      }
      return this.attrTween(name, d3_tweenByName(value, name));
    };
    d3_transitionPrototype.attrTween = function(nameNS, tween) {
      function attrTween(d, i) {
        var f = tween.call(this, d, i, this.getAttribute(name));
        return f === d3_tweenRemove ? (this.removeAttribute(name), null) : 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 === d3_tweenRemove ? (this.removeAttributeNS(name.space, name.local), null) : f && function(t) {
          this.setAttributeNS(name.space, name.local, f(t));
        };
      }
      var name = d3.ns.qualify(nameNS);
      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.styleTween(priority, d3_tweenByName(name[priority], priority), value);
          return this;
        }
        priority = "";
      }
      return this.styleTween(name, d3_tweenByName(value, name), priority);
    };
    d3_transitionPrototype.styleTween = function(name, tween, priority) {
      if (arguments.length < 3) priority = "";
      return this.tween("style." + name, function(d, i) {
        var f = tween.call(this, d, i, window.getComputedStyle(this, null).getPropertyValue(name));
        return f === d3_tweenRemove ? (this.style.removeProperty(name), null) : f && function(t) {
          this.style.setProperty(name, f(t), priority);
        };
      });
    };
    d3_transitionPrototype.text = function(value) {
      return this.tween("text", function(d, i) {
        this.textContent = typeof value === "function" ? value.call(this, d, i) : value;
      });
    };
    d3_transitionPrototype.remove = function() {
      return this.each("end.transition", function() {
        var p;
        if (!this.__transition__ && (p = this.parentNode)) p.removeChild(this);
      });
    };
    d3_transitionPrototype.delay = function(value) {
      return d3_selection_each(this, typeof value === "function" ? function(node, i, j) {
        node.delay = value.call(node = node.node, node.__data__, i, j) | 0;
      } : (value = value | 0, function(node) {
        node.delay = value;
      }));
    };
    d3_transitionPrototype.duration = function(value) {
      return d3_selection_each(this, typeof value === "function" ? function(node, i, j) {
        node.duration = Math.max(1, value.call(node = node.node, node.__data__, i, j) | 0);
      } : (value = Math.max(1, value | 0), function(node) {
        node.duration = value;
      }));
    };
    d3_transitionPrototype.transition = function() {
      return this.select(d3_this);
    };
    d3.tween = function(b, interpolate) {
      function tweenFunction(d, i, a) {
        var v = b.call(this, d, i);
        return v == null ? a != "" && d3_tweenRemove : a != v && interpolate(a, v);
      }
      function tweenString(d, i, a) {
        return a != b && interpolate(a, b);
      }
      return typeof b === "function" ? tweenFunction : b == null ? d3_tweenNull : (b += "", tweenString);
    };
    var d3_tweenRemove = {};
    var d3_timer_queue = null, d3_timer_interval, d3_timer_timeout;
    d3.timer = function(callback, delay, then) {
      var found = false, t0, t1 = d3_timer_queue;
      if (arguments.length < 3) {
        if (arguments.length < 2) delay = 0; else if (!isFinite(delay)) return;
        then = Date.now();
      }
      while (t1) {
        if (t1.callback === callback) {
          t1.then = then;
          t1.delay = delay;
          found = true;
          break;
        }
        t0 = t1;
        t1 = t1.next;
      }
      if (!found) d3_timer_queue = {
        callback: callback,
        then: then,
        delay: delay,
        next: d3_timer_queue
      };
      if (!d3_timer_interval) {
        d3_timer_timeout = clearTimeout(d3_timer_timeout);
        d3_timer_interval = 1;
        d3_timer_frame(d3_timer_step);
      }
    };
    d3.timer.flush = function() {
      var elapsed, now = Date.now(), t1 = d3_timer_queue;
      while (t1) {
        elapsed = now - t1.then;
        if (!t1.delay) t1.flush = t1.callback(elapsed);
        t1 = t1.next;
      }
      d3_timer_flush();
    };
    var d3_timer_frame = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function(callback) {
      setTimeout(callback, 17);
    };
    d3.mouse = function(container) {
      return d3_mousePoint(container, d3_eventSource());
    };
    var d3_mouse_bug44083 = /WebKit/.test(navigator.userAgent) ? -1 : 0;
    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.scale = {};
    d3.scale.linear = function() {
      return d3_scale_linear([ 0, 1 ], [ 0, 1 ], d3.interpolate, false);
    };
    d3.scale.log = function() {
      return d3_scale_log(d3.scale.linear(), d3_scale_logp);
    };
    var d3_scale_logFormat = d3.format(".0e");
    d3_scale_logp.pow = function(x) {
      return Math.pow(10, x);
    };
    d3_scale_logn.pow = function(x) {
      return -Math.pow(10, -x);
    };
    d3.scale.pow = function() {
      return d3_scale_pow(d3.scale.linear(), 1);
    };
    d3.scale.sqrt = function() {
      return d3.scale.pow().exponent(.5);
    };
    d3.scale.ordinal = function() {
      return d3_scale_ordinal([], {
        t: "range",
        a: [ [] ]
      });
    };
    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 = [ "#1f77b4", "#ff7f0e", "#2ca02c", "#d62728", "#9467bd", "#8c564b", "#e377c2", "#7f7f7f", "#bcbd22", "#17becf" ];
    var d3_category20 = [ "#1f77b4", "#aec7e8", "#ff7f0e", "#ffbb78", "#2ca02c", "#98df8a", "#d62728", "#ff9896", "#9467bd", "#c5b0d5", "#8c564b", "#c49c94", "#e377c2", "#f7b6d2", "#7f7f7f", "#c7c7c7", "#bcbd22", "#dbdb8d", "#17becf", "#9edae5" ];
    var d3_category20b = [ "#393b79", "#5254a3", "#6b6ecf", "#9c9ede", "#637939", "#8ca252", "#b5cf6b", "#cedb9c", "#8c6d31", "#bd9e39", "#e7ba52", "#e7cb94", "#843c39", "#ad494a", "#d6616b", "#e7969c", "#7b4173", "#a55194", "#ce6dbd", "#de9ed6" ];
    var d3_category20c = [ "#3182bd", "#6baed6", "#9ecae1", "#c6dbef", "#e6550d", "#fd8d3c", "#fdae6b", "#fdd0a2", "#31a354", "#74c476", "#a1d99b", "#c7e9c0", "#756bb1", "#9e9ac8", "#bcbddc", "#dadaeb", "#636363", "#969696", "#bdbdbd", "#d9d9d9" ];
    d3.scale.quantile = function() {
      return d3_scale_quantile([], []);
    };
    d3.scale.quantize = function() {
      return d3_scale_quantize(0, 1, [ 0, 1 ]);
    };
    d3.scale.threshold = function() {
      return d3_scale_threshold([ .5 ], [ 0, 1 ]);
    };
    d3.scale.identity = function() {
      return d3_scale_identity([ 0, 1 ]);
    };
    d3.svg = {};
    d3.svg.arc = function() {
      function arc() {
        var r0 = innerRadius.apply(this, arguments), r1 = outerRadius.apply(this, arguments), a0 = startAngle.apply(this, arguments) + d3_svg_arcOffset, a1 = endAngle.apply(this, arguments) + d3_svg_arcOffset, da = (a1 < a0 && (da = a0, a0 = a1, a1 = da), a1 - a0), df = da < Math.PI ? "0" : "1", c0 = Math.cos(a0), s0 = Math.sin(a0), c1 = Math.cos(a1), s1 = Math.sin(a1);
        return da >= d3_svg_arcMax ? r0 ? "M0," + r1 + "A" + r1 + "," + r1 + " 0 1,1 0," + -r1 + "A" + r1 + "," + r1 + " 0 1,1 0," + r1 + "M0," + r0 + "A" + r0 + "," + r0 + " 0 1,0 0," + -r0 + "A" + r0 + "," + r0 + " 0 1,0 0," + r0 + "Z" : "M0," + r1 + "A" + r1 + "," + r1 + " 0 1,1 0," + -r1 + "A" + r1 + "," + r1 + " 0 1,1 0," + r1 + "Z" : r0 ? "M" + r1 * c0 + "," + r1 * s0 + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1 + "L" + r0 * c1 + "," + r0 * s1 + "A" + r0 + "," + r0 + " 0 " + df + ",0 " + r0 * c0 + "," + r0 * s0 + "Z" : "M" + r1 * c0 + "," + r1 * s0 + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1 + "L0,0" + "Z";
      }
      var innerRadius = d3_svg_arcInnerRadius, outerRadius = d3_svg_arcOuterRadius, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle;
      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.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.centroid = function() {
        var r = (innerRadius.apply(this, arguments) + outerRadius.apply(this, arguments)) / 2, a = (startAngle.apply(this, arguments) + endAngle.apply(this, arguments)) / 2 + d3_svg_arcOffset;
        return [ Math.cos(a) * r, Math.sin(a) * r ];
      };
      return arc;
    };
    var d3_svg_arcOffset = -Math.PI / 2, d3_svg_arcMax = 2 * Math.PI - 1e-6;
    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-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);
    });
    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 ];
    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;
    };
    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() {
      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) + d3_svg_arcOffset, a1 = endAngle.call(self, subgroup, i) + d3_svg_arcOffset;
        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 > Math.PI) + ",1 " + p;
      }
      function curve(r0, p0, r1, p1) {
        return "Q 0,0 " + p1;
      }
      var source = d3_svg_chordSource, target = d3_svg_chordTarget, radius = d3_svg_chordRadius, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle;
      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;
    };
    d3.svg.diagonal = function() {
      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];
      }
      var source = d3_svg_chordSource, target = d3_svg_chordTarget, projection = d3_svg_diagonalProjection;
      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;
    };
    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;
    };
    d3.svg.mouse = d3.mouse;
    d3.svg.touches = d3.touches;
    d3.svg.symbol = function() {
      function symbol(d, i) {
        return (d3_svg_symbols.get(type.call(this, d, i)) || d3_svg_symbolCircle)(size.call(this, d, i));
      }
      var type = d3_svg_symbolType, size = d3_svg_symbolSize;
      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;
    };
    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 * Math.PI / 180);
    d3.svg.axis = function() {
      function axis(g) {
        g.each(function() {
          var g = d3.select(this);
          var ticks = tickValues == null ? scale.ticks ? scale.ticks.apply(scale, tickArguments_) : scale.domain() : tickValues, tickFormat = tickFormat_ == null ? scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments_) : String : tickFormat_;
          var subticks = d3_svg_axisSubdivide(scale, ticks, tickSubdivide), subtick = g.selectAll(".minor").data(subticks, String), subtickEnter = subtick.enter().insert("line", "g").attr("class", "tick minor").style("opacity", 1e-6), subtickExit = d3.transition(subtick.exit()).style("opacity", 1e-6).remove(), subtickUpdate = d3.transition(subtick).style("opacity", 1);
          var tick = g.selectAll("g").data(ticks, String), tickEnter = tick.enter().insert("g", "path").style("opacity", 1e-6), tickExit = d3.transition(tick.exit()).style("opacity", 1e-6).remove(), tickUpdate = d3.transition(tick).style("opacity", 1), tickTransform;
          var range = d3_scaleRange(scale), path = g.selectAll(".domain").data([ 0 ]), pathEnter = path.enter().append("path").attr("class", "domain"), pathUpdate = d3.transition(path);
          var scale1 = scale.copy(), scale0 = this.__chart__ || scale1;
          this.__chart__ = scale1;
          tickEnter.append("line").attr("class", "tick");
          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");
          switch (orient) {
           case "bottom":
            {
              tickTransform = d3_svg_axisX;
              subtickEnter.attr("y2", tickMinorSize);
              subtickUpdate.attr("x2", 0).attr("y2", tickMinorSize);
              lineEnter.attr("y2", tickMajorSize);
              textEnter.attr("y", Math.max(tickMajorSize, 0) + tickPadding);
              lineUpdate.attr("x2", 0).attr("y2", tickMajorSize);
              textUpdate.attr("x", 0).attr("y", Math.max(tickMajorSize, 0) + tickPadding);
              text.attr("dy", ".71em").attr("text-anchor", "middle");
              pathUpdate.attr("d", "M" + range[0] + "," + tickEndSize + "V0H" + range[1] + "V" + tickEndSize);
              break;
            }
           case "top":
            {
              tickTransform = d3_svg_axisX;
              subtickEnter.attr("y2", -tickMinorSize);
              subtickUpdate.attr("x2", 0).attr("y2", -tickMinorSize);
              lineEnter.attr("y2", -tickMajorSize);
              textEnter.attr("y", -(Math.max(tickMajorSize, 0) + tickPadding));
              lineUpdate.attr("x2", 0).attr("y2", -tickMajorSize);
              textUpdate.attr("x", 0).attr("y", -(Math.max(tickMajorSize, 0) + tickPadding));
              text.attr("dy", "0em").attr("text-anchor", "middle");
              pathUpdate.attr("d", "M" + range[0] + "," + -tickEndSize + "V0H" + range[1] + "V" + -tickEndSize);
              break;
            }
           case "left":
            {
              tickTransform = d3_svg_axisY;
              subtickEnter.attr("x2", -tickMinorSize);
              subtickUpdate.attr("x2", -tickMinorSize).attr("y2", 0);
              lineEnter.attr("x2", -tickMajorSize);
              textEnter.attr("x", -(Math.max(tickMajorSize, 0) + tickPadding));
              lineUpdate.attr("x2", -tickMajorSize).attr("y2", 0);
              textUpdate.attr("x", -(Math.max(tickMajorSize, 0) + tickPadding)).attr("y", 0);
              text.attr("dy", ".32em").attr("text-anchor", "end");
              pathUpdate.attr("d", "M" + -tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + -tickEndSize);
              break;
            }
           case "right":
            {
              tickTransform = d3_svg_axisY;
              subtickEnter.attr("x2", tickMinorSize);
              subtickUpdate.attr("x2", tickMinorSize).attr("y2", 0);
              lineEnter.attr("x2", tickMajorSize);
              textEnter.attr("x", Math.max(tickMajorSize, 0) + tickPadding);
              lineUpdate.attr("x2", tickMajorSize).attr("y2", 0);
              textUpdate.attr("x", Math.max(tickMajorSize, 0) + tickPadding).attr("y", 0);
              text.attr("dy", ".32em").attr("text-anchor", "start");
              pathUpdate.attr("d", "M" + tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + tickEndSize);
              break;
            }
          }
          if (scale.ticks) {
            tickEnter.call(tickTransform, scale0);
            tickUpdate.call(tickTransform, scale1);
            tickExit.call(tickTransform, scale1);
            subtickEnter.call(tickTransform, scale0);
            subtickUpdate.call(tickTransform, scale1);
            subtickExit.call(tickTransform, scale1);
          } else {
            var dx = scale1.rangeBand() / 2, x = function(d) {
              return scale1(d) + dx;
            };
            tickEnter.call(tickTransform, x);
            tickUpdate.call(tickTransform, x);
          }
        });
      }
      var scale = d3.scale.linear(), orient = "bottom", tickMajorSize = 6, tickMinorSize = 6, tickEndSize = 6, tickPadding = 3, tickArguments_ = [ 10 ], tickValues = null, tickFormat_, tickSubdivide = 0;
      axis.scale = function(x) {
        if (!arguments.length) return scale;
        scale = x;
        return axis;
      };
      axis.orient = function(x) {
        if (!arguments.length) return orient;
        orient = x;
        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, y, z) {
        if (!arguments.length) return tickMajorSize;
        var n = arguments.length - 1;
        tickMajorSize = +x;
        tickMinorSize = n > 1 ? +y : tickMajorSize;
        tickEndSize = n > 0 ? +arguments[n] : tickMajorSize;
        return axis;
      };
      axis.tickPadding = function(x) {
        if (!arguments.length) return tickPadding;
        tickPadding = +x;
        return axis;
      };
      axis.tickSubdivide = function(x) {
        if (!arguments.length) return tickSubdivide;
        tickSubdivide = +x;
        return axis;
      };
      return axis;
    };
    d3.svg.brush = function() {
      function brush(g) {
        g.each(function() {
          var g = d3.select(this), bg = g.selectAll(".background").data([ 0 ]), fg = g.selectAll(".extent").data([ 0 ]), tz = g.selectAll(".resize").data(resizes, String), e;
          g.style("pointer-events", "all").on("mousedown.brush", brushstart).on("touchstart.brush", brushstart);
          bg.enter().append("rect").attr("class", "background").style("visibility", "hidden").style("cursor", "crosshair");
          fg.enter().append("rect").attr("class", "extent").style("cursor", "move");
          tz.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");
          tz.style("display", brush.empty() ? "none" : null);
          tz.exit().remove();
          if (x) {
            e = d3_scaleRange(x);
            bg.attr("x", e[0]).attr("width", e[1] - e[0]);
            redrawX(g);
          }
          if (y) {
            e = d3_scaleRange(y);
            bg.attr("y", e[0]).attr("height", e[1] - e[0]);
            redrawY(g);
          }
          redraw(g);
        });
      }
      function redraw(g) {
        g.selectAll(".resize").attr("transform", function(d) {
          return "translate(" + extent[+/e$/.test(d)][0] + "," + extent[+/^s/.test(d)][1] + ")";
        });
      }
      function redrawX(g) {
        g.select(".extent").attr("x", extent[0][0]);
        g.selectAll(".extent,.n>rect,.s>rect").attr("width", extent[1][0] - extent[0][0]);
      }
      function redrawY(g) {
        g.select(".extent").attr("y", extent[0][1]);
        g.selectAll(".extent,.e>rect,.w>rect").attr("height", extent[1][1] - extent[0][1]);
      }
      function brushstart() {
        function mouse() {
          var touches = d3.event.changedTouches;
          return touches ? d3.touches(target, touches)[0] : d3.mouse(target);
        }
        function keydown() {
          if (d3.event.keyCode == 32) {
            if (!dragging) {
              center = null;
              origin[0] -= extent[1][0];
              origin[1] -= extent[1][1];
              dragging = 2;
            }
            d3_eventCancel();
          }
        }
        function keyup() {
          if (d3.event.keyCode == 32 && dragging == 2) {
            origin[0] += extent[1][0];
            origin[1] += extent[1][1];
            dragging = 0;
            d3_eventCancel();
          }
        }
        function brushmove() {
          var point = mouse(), moved = false;
          if (offset) {
            point[0] += offset[0];
            point[1] += offset[1];
          }
          if (!dragging) {
            if (d3.event.altKey) {
              if (!center) center = [ (extent[0][0] + extent[1][0]) / 2, (extent[0][1] + extent[1][1]) / 2 ];
              origin[0] = extent[+(point[0] < center[0])][0];
              origin[1] = extent[+(point[1] < center[1])][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], size = extent[1][i] - extent[0][i], min, max;
          if (dragging) {
            r0 -= position;
            r1 -= size + position;
          }
          min = Math.max(r0, Math.min(r1, 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][i] !== min || extent[1][i] !== max) {
            extentDomain = null;
            extent[0][i] = min;
            extent[1][i] = 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);
          event_({
            type: "brushend"
          });
          d3_eventCancel();
        }
        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)$/.test(resizing) && y, dragging = eventTarget.classed("extent"), center, origin = mouse(), offset;
        var w = d3.select(window).on("mousemove.brush", brushmove).on("mouseup.brush", brushend).on("touchmove.brush", brushmove).on("touchend.brush", brushend).on("keydown.brush", keydown).on("keyup.brush", keyup);
        if (dragging) {
          origin[0] = extent[0][0] - origin[0];
          origin[1] = extent[0][1] - origin[1];
        } else if (resizing) {
          var ex = +/w$/.test(resizing), ey = +/^n/.test(resizing);
          offset = [ extent[1 - ex][0] - origin[0], extent[1 - ey][1] - origin[1] ];
          origin[0] = extent[ex][0];
          origin[1] = extent[ey][1];
        } 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();
        d3_eventCancel();
      }
      var event = d3_eventDispatch(brush, "brushstart", "brush", "brushend"), x = null, y = null, resizes = d3_svg_brushResizes[0], extent = [ [ 0, 0 ], [ 0, 0 ] ], extentDomain;
      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.extent = function(z) {
        var x0, x1, y0, y1, t;
        if (!arguments.length) {
          z = extentDomain || extent;
          if (x) {
            x0 = z[0][0], x1 = z[1][0];
            if (!extentDomain) {
              x0 = extent[0][0], x1 = extent[1][0];
              if (x.invert) x0 = x.invert(x0), x1 = x.invert(x1);
              if (x1 < x0) t = x0, x0 = x1, x1 = t;
            }
          }
          if (y) {
            y0 = z[0][1], y1 = z[1][1];
            if (!extentDomain) {
              y0 = extent[0][1], y1 = extent[1][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 ];
        }
        extentDomain = [ [ 0, 0 ], [ 0, 0 ] ];
        if (x) {
          x0 = z[0], x1 = z[1];
          if (y) x0 = x0[0], x1 = x1[0];
          extentDomain[0][0] = x0, extentDomain[1][0] = x1;
          if (x.invert) x0 = x(x0), x1 = x(x1);
          if (x1 < x0) t = x0, x0 = x1, x1 = t;
          extent[0][0] = x0 | 0, extent[1][0] = x1 | 0;
        }
        if (y) {
          y0 = z[0], y1 = z[1];
          if (x) y0 = y0[1], y1 = y1[1];
          extentDomain[0][1] = y0, extentDomain[1][1] = y1;
          if (y.invert) y0 = y(y0), y1 = y(y1);
          if (y1 < y0) t = y0, y0 = y1, y1 = t;
          extent[0][1] = y0 | 0, extent[1][1] = y1 | 0;
        }
        return brush;
      };
      brush.clear = function() {
        extentDomain = null;
        extent[0][0] = extent[0][1] = extent[1][0] = extent[1][1] = 0;
        return brush;
      };
      brush.empty = function() {
        return x && extent[0][0] === extent[1][0] || y && extent[0][1] === extent[1][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" ], [] ];
    d3.behavior = {};
    d3.behavior.drag = function() {
      function drag() {
        this.on("mousedown.drag", mousedown).on("touchstart.drag", mousedown);
      }
      function mousedown() {
        function point() {
          var p = target.parentNode;
          return touchId ? d3.touches(p).filter(function(p) {
            return p.identifier === touchId;
          })[0] : d3.mouse(p);
        }
        function dragmove() {
          if (!target.parentNode) return dragend();
          var p = point(), dx = p[0] - origin_[0], dy = p[1] - origin_[1];
          moved |= dx | dy;
          origin_ = p;
          d3_eventCancel();
          event_({
            type: "drag",
            x: p[0] + offset[0],
            y: p[1] + offset[1],
            dx: dx,
            dy: dy
          });
        }
        function dragend() {
          event_({
            type: "dragend"
          });
          if (moved) {
            d3_eventCancel();
            if (d3.event.target === eventTarget) w.on("click.drag", click, true);
          }
          w.on(touchId ? "touchmove.drag-" + touchId : "mousemove.drag", null).on(touchId ? "touchend.drag-" + touchId : "mouseup.drag", null);
        }
        function click() {
          d3_eventCancel();
          w.on("click.drag", null);
        }
        var target = this, event_ = event.of(target, arguments), eventTarget = d3.event.target, touchId = d3.event.touches && d3.event.changedTouches[0].identifier, offset, origin_ = point(), moved = 0;
        var w = d3.select(window).on(touchId ? "touchmove.drag-" + touchId : "mousemove.drag", dragmove).on(touchId ? "touchend.drag-" + touchId : "mouseup.drag", dragend, true);
        if (origin) {
          offset = origin.apply(target, arguments);
          offset = [ offset.x - origin_[0], offset.y - origin_[1] ];
        } else {
          offset = [ 0, 0 ];
        }
        if (!touchId) d3_eventCancel();
        event_({
          type: "dragstart"
        });
      }
      var event = d3_eventDispatch(drag, "drag", "dragstart", "dragend"), origin = null;
      drag.origin = function(x) {
        if (!arguments.length) return origin;
        origin = x;
        return drag;
      };
      return d3.rebind(drag, event, "on");
    };
    d3.behavior.zoom = function() {
      function zoom() {
        this.on("mousedown.zoom", mousedown).on("mousewheel.zoom", mousewheel).on("mousemove.zoom", mousemove).on("DOMMouseScroll.zoom", mousewheel).on("dblclick.zoom", dblclick).on("touchstart.zoom", touchstart).on("touchmove.zoom", touchmove).on("touchend.zoom", touchstart);
      }
      function location(p) {
        return [ (p[0] - translate[0]) / scale, (p[1] - translate[1]) / scale ];
      }
      function point(l) {
        return [ l[0] * scale + translate[0], l[1] * scale + translate[1] ];
      }
      function scaleTo(s) {
        scale = Math.max(scaleExtent[0], Math.min(scaleExtent[1], s));
      }
      function translateTo(p, l) {
        l = point(l);
        translate[0] += p[0] - l[0];
        translate[1] += p[1] - l[1];
      }
      function dispatch(event) {
        if (x1) x1.domain(x0.range().map(function(x) {
          return (x - translate[0]) / scale;
        }).map(x0.invert));
        if (y1) y1.domain(y0.range().map(function(y) {
          return (y - translate[1]) / scale;
        }).map(y0.invert));
        d3.event.preventDefault();
        event({
          type: "zoom",
          scale: scale,
          translate: translate
        });
      }
      function mousedown() {
        function mousemove() {
          moved = 1;
          translateTo(d3.mouse(target), l);
          dispatch(event_);
        }
        function mouseup() {
          if (moved) d3_eventCancel();
          w.on("mousemove.zoom", null).on("mouseup.zoom", null);
          if (moved && d3.event.target === eventTarget) w.on("click.zoom", click, true);
        }
        function click() {
          d3_eventCancel();
          w.on("click.zoom", null);
        }
        var target = this, event_ = event.of(target, arguments), eventTarget = d3.event.target, moved = 0, w = d3.select(window).on("mousemove.zoom", mousemove).on("mouseup.zoom", mouseup), l = location(d3.mouse(target));
        window.focus();
        d3_eventCancel();
      }
      function mousewheel() {
        if (!translate0) translate0 = location(d3.mouse(this));
        scaleTo(Math.pow(2, d3_behavior_zoomDelta() * .002) * scale);
        translateTo(d3.mouse(this), translate0);
        dispatch(event.of(this, arguments));
      }
      function mousemove() {
        translate0 = null;
      }
      function dblclick() {
        var p = d3.mouse(this), l = location(p);
        scaleTo(d3.event.shiftKey ? scale / 2 : scale * 2);
        translateTo(p, l);
        dispatch(event.of(this, arguments));
      }
      function touchstart() {
        var touches = d3.touches(this), now = Date.now();
        scale0 = scale;
        translate0 = {};
        touches.forEach(function(t) {
          translate0[t.identifier] = location(t);
        });
        d3_eventCancel();
        if (touches.length === 1) {
          if (now - touchtime < 500) {
            var p = touches[0], l = location(touches[0]);
            scaleTo(scale * 2);
            translateTo(p, l);
            dispatch(event.of(this, arguments));
          }
          touchtime = now;
        }
      }
      function touchmove() {
        var touches = d3.touches(this), p0 = touches[0], l0 = translate0[p0.identifier];
        if (p1 = touches[1]) {
          var p1, l1 = translate0[p1.identifier];
          p0 = [ (p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2 ];
          l0 = [ (l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2 ];
          scaleTo(d3.event.scale * scale0);
        }
        translateTo(p0, l0);
        touchtime = null;
        dispatch(event.of(this, arguments));
      }
      var translate = [ 0, 0 ], translate0, scale = 1, scale0, scaleExtent = d3_behavior_zoomInfinity, event = d3_eventDispatch(zoom, "zoom"), x0, x1, y0, y1, touchtime;
      zoom.translate = function(x) {
        if (!arguments.length) return translate;
        translate = x.map(Number);
        return zoom;
      };
      zoom.scale = function(x) {
        if (!arguments.length) return scale;
        scale = +x;
        return zoom;
      };
      zoom.scaleExtent = function(x) {
        if (!arguments.length) return scaleExtent;
        scaleExtent = x == null ? d3_behavior_zoomInfinity : x.map(Number);
        return zoom;
      };
      zoom.x = function(z) {
        if (!arguments.length) return x1;
        x1 = z;
        x0 = z.copy();
        return zoom;
      };
      zoom.y = function(z) {
        if (!arguments.length) return y1;
        y1 = z;
        y0 = z.copy();
        return zoom;
      };
      return d3.rebind(zoom, event, "on");
    };
    var d3_behavior_zoomDiv, d3_behavior_zoomInfinity = [ 0, Infinity ];
    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;
      };
    };
    d3.layout.chord = function() {
      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 = (2 * Math.PI - 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);
        });
      }
      var chord = {}, chords, groups, matrix, n, padding = 0, sortGroups, sortSubgroups, sortChords;
      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() {
      function repulse(node) {
        return function(quad, x1, y1, x2, y2) {
          if (quad.point !== node) {
            var dx = quad.cx - node.x, dy = quad.cy - node.y, dn = 1 / Math.sqrt(dx * dx + dy * dy);
            if ((x2 - x1) * dn < theta) {
              var k = quad.charge * dn * dn;
              node.px -= dx * k;
              node.py -= dy * k;
              return true;
            }
            if (quad.point && isFinite(dn)) {
              var k = quad.pointCharge * dn * dn;
              node.px -= dx * k;
              node.py -= dy * k;
            }
          }
          return !quad.charge;
        };
      }
      function dragmove(d) {
        d.px = d3.event.x;
        d.py = d3.event.y;
        force.resume();
      }
      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, gravity = .1, theta = .8, interval, nodes = [], links = [], distances, strengths, charges;
      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 = d3_functor(x);
        return force;
      };
      force.distance = force.linkDistance;
      force.linkStrength = function(x) {
        if (!arguments.length) return linkStrength;
        linkStrength = d3_functor(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.gravity = function(x) {
        if (!arguments.length) return gravity;
        gravity = x;
        return force;
      };
      force.theta = function(x) {
        if (!arguments.length) return theta;
        theta = x;
        return force;
      };
      force.alpha = function(x) {
        if (!arguments.length) return alpha;
        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() {
        function position(dimension, size) {
          var neighbors = neighbor(i), j = -1, m = neighbors.length, x;
          while (++j < m) if (!isNaN(x = neighbors[j][dimension])) return x;
          return Math.random() * size;
        }
        function neighbor() {
          if (!neighbors) {
            neighbors = [];
            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);
            }
          }
          return neighbors[i];
        }
        var i, j, 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;
        }
        distances = [];
        strengths = [];
        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];
          distances[i] = linkDistance.call(this, o, i);
          strengths[i] = linkStrength.call(this, o, i);
          ++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;
        }
        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;
          }
        }
        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", d3_layout_forceDragstart).on("drag", dragmove).on("dragend", d3_layout_forceDragend);
        this.on("mouseover.force", d3_layout_forceMouseover).on("mouseout.force", d3_layout_forceMouseout).call(drag);
      };
      return d3.rebind(force, event, "on");
    };
    d3.layout.partition = function() {
      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;
      }
      var hierarchy = d3.layout.hierarchy(), size = [ 1, 1 ];
      partition.size = function(x) {
        if (!arguments.length) return size;
        size = x;
        return partition;
      };
      return d3_layout_hierarchyRebind(partition, hierarchy);
    };
    d3.layout.pie = function() {
      function pie(data, i) {
        var values = data.map(function(d, i) {
          return +value.call(pie, d, i);
        });
        var a = +(typeof startAngle === "function" ? startAngle.apply(this, arguments) : startAngle);
        var k = ((typeof endAngle === "function" ? endAngle.apply(this, arguments) : endAngle) - startAngle) / d3.sum(values);
        var index = d3.range(data.length);
        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]);
        });
        var arcs = [];
        index.forEach(function(i) {
          var d;
          arcs[i] = {
            data: data[i],
            value: d = values[i],
            startAngle: a,
            endAngle: a += d * k
          };
        });
        return arcs;
      }
      var value = Number, sort = d3_layout_pieSortByValue, startAngle = 0, endAngle = 2 * Math.PI;
      pie.value = function(x) {
        if (!arguments.length) return value;
        value = x;
        return pie;
      };
      pie.sort = function(x) {
        if (!arguments.length) return sort;
        sort = x;
        return pie;
      };
      pie.startAngle = function(x) {
        if (!arguments.length) return startAngle;
        startAngle = x;
        return pie;
      };
      pie.endAngle = function(x) {
        if (!arguments.length) return endAngle;
        endAngle = x;
        return pie;
      };
      return pie;
    };
    var d3_layout_pieSortByValue = {};
    d3.layout.stack = function() {
      function stack(data, index) {
        var series = data.map(function(d, i) {
          return values.call(stack, d, i);
        });
        var points = series.map(function(d, i) {
          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 n = series.length, m = series[0].length, 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;
      }
      var values = d3_identity, order = d3_layout_stackOrderDefault, offset = d3_layout_stackOffsetZero, out = d3_layout_stackOut, x = d3_layout_stackX, y = d3_layout_stackY;
      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;
    };
    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, max = 0, 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
    });
    d3.layout.histogram = function() {
      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;
      }
      var frequency = true, valuer = Number, ranger = d3_layout_histogramRange, binner = d3_layout_histogramBinSturges;
      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;
    };
    d3.layout.hierarchy = function() {
      function recurse(data, depth, nodes) {
        var childs = children.call(hierarchy, data, depth), node = d3_layout_hierarchyInline ? data : {
          data: data
        };
        node.depth = depth;
        nodes.push(node);
        if (childs && (n = childs.length)) {
          var i = -1, n, c = node.children = [], v = 0, j = depth + 1, d;
          while (++i < n) {
            d = recurse(childs[i], j, nodes);
            d.parent = node;
            c.push(d);
            v += d.value;
          }
          if (sort) c.sort(sort);
          if (value) node.value = v;
        } else if (value) {
          node.value = +value.call(hierarchy, data, depth) || 0;
        }
        return node;
      }
      function revalue(node, depth) {
        var children = node.children, v = 0;
        if (children && (n = children.length)) {
          var i = -1, n, j = depth + 1;
          while (++i < n) v += revalue(children[i], j);
        } else if (value) {
          v = +value.call(hierarchy, d3_layout_hierarchyInline ? node : node.data, depth) || 0;
        }
        if (value) node.value = v;
        return v;
      }
      function hierarchy(d) {
        var nodes = [];
        recurse(d, 0, nodes);
        return nodes;
      }
      var sort = d3_layout_hierarchySort, children = d3_layout_hierarchyChildren, value = d3_layout_hierarchyValue;
      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) {
        revalue(root, 0);
        return root;
      };
      return hierarchy;
    };
    var d3_layout_hierarchyInline = false;
    d3.layout.pack = function() {
      function pack(d, i) {
        var nodes = hierarchy.call(this, d, i), root = nodes[0];
        root.x = 0;
        root.y = 0;
        d3_layout_treeVisitAfter(root, function(d) {
          d.r = Math.sqrt(d.value);
        });
        d3_layout_treeVisitAfter(root, d3_layout_packSiblings);
        var w = size[0], h = size[1], k = Math.max(2 * root.r / w, 2 * root.r / h);
        if (padding > 0) {
          var dr = padding * k / 2;
          d3_layout_treeVisitAfter(root, function(d) {
            d.r += dr;
          });
          d3_layout_treeVisitAfter(root, d3_layout_packSiblings);
          d3_layout_treeVisitAfter(root, function(d) {
            d.r -= dr;
          });
          k = Math.max(2 * root.r / w, 2 * root.r / h);
        }
        d3_layout_packTransform(root, w / 2, h / 2, 1 / k);
        return nodes;
      }
      var hierarchy = d3.layout.hierarchy().sort(d3_layout_packSort), padding = 0, size = [ 1, 1 ];
      pack.size = function(x) {
        if (!arguments.length) return size;
        size = x;
        return pack;
      };
      pack.padding = function(_) {
        if (!arguments.length) return padding;
        padding = +_;
        return pack;
      };
      return d3_layout_hierarchyRebind(pack, hierarchy);
    };
    d3.layout.cluster = function() {
      function cluster(d, i) {
        var nodes = hierarchy.call(this, d, i), root = nodes[0], previousNode, x = 0, kx, ky;
        d3_layout_treeVisitAfter(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_treeVisitAfter(root, 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;
      }
      var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ];
      cluster.separation = function(x) {
        if (!arguments.length) return separation;
        separation = x;
        return cluster;
      };
      cluster.size = function(x) {
        if (!arguments.length) return size;
        size = x;
        return cluster;
      };
      return d3_layout_hierarchyRebind(cluster, hierarchy);
    };
    d3.layout.tree = function() {
      function tree(d, i) {
        function firstWalk(node, previousSibling) {
          var children = node.children, layout = node._tree;
          if (children && (n = children.length)) {
            var n, firstChild = children[0], previousChild, ancestor = firstChild, child, i = -1;
            while (++i < n) {
              child = children[i];
              firstWalk(child, previousChild);
              ancestor = apportion(child, previousChild, ancestor);
              previousChild = child;
            }
            d3_layout_treeShift(node);
            var midpoint = .5 * (firstChild._tree.prelim + child._tree.prelim);
            if (previousSibling) {
              layout.prelim = previousSibling._tree.prelim + separation(node, previousSibling);
              layout.mod = layout.prelim - midpoint;
            } else {
              layout.prelim = midpoint;
            }
          } else {
            if (previousSibling) {
              layout.prelim = previousSibling._tree.prelim + separation(node, previousSibling);
            }
          }
        }
        function secondWalk(node, x) {
          node.x = node._tree.prelim + x;
          var children = node.children;
          if (children && (n = children.length)) {
            var i = -1, n;
            x += node._tree.mod;
            while (++i < n) {
              secondWalk(children[i], x);
            }
          }
        }
        function apportion(node, previousSibling, ancestor) {
          if (previousSibling) {
            var vip = node, vop = node, vim = previousSibling, vom = node.parent.children[0], sip = vip._tree.mod, sop = vop._tree.mod, sim = vim._tree.mod, som = vom._tree.mod, 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._tree.ancestor = node;
              shift = vim._tree.prelim + sim - vip._tree.prelim - sip + separation(vim, vip);
              if (shift > 0) {
                d3_layout_treeMove(d3_layout_treeAncestor(vim, node, ancestor), node, shift);
                sip += shift;
                sop += shift;
              }
              sim += vim._tree.mod;
              sip += vip._tree.mod;
              som += vom._tree.mod;
              sop += vop._tree.mod;
            }
            if (vim && !d3_layout_treeRight(vop)) {
              vop._tree.thread = vim;
              vop._tree.mod += sim - sop;
            }
            if (vip && !d3_layout_treeLeft(vom)) {
              vom._tree.thread = vip;
              vom._tree.mod += sip - som;
              ancestor = node;
            }
          }
          return ancestor;
        }
        var nodes = hierarchy.call(this, d, i), root = nodes[0];
        d3_layout_treeVisitAfter(root, function(node, previousSibling) {
          node._tree = {
            ancestor: node,
            prelim: 0,
            mod: 0,
            change: 0,
            shift: 0,
            number: previousSibling ? previousSibling._tree.number + 1 : 0
          };
        });
        firstWalk(root);
        secondWalk(root, -root._tree.prelim);
        var left = d3_layout_treeSearch(root, d3_layout_treeLeftmost), right = d3_layout_treeSearch(root, d3_layout_treeRightmost), deep = d3_layout_treeSearch(root, d3_layout_treeDeepest), x0 = left.x - separation(left, right) / 2, x1 = right.x + separation(right, left) / 2, y1 = deep.depth || 1;
        d3_layout_treeVisitAfter(root, function(node) {
          node.x = (node.x - x0) / (x1 - x0) * size[0];
          node.y = node.depth / y1 * size[1];
          delete node._tree;
        });
        return nodes;
      }
      var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ];
      tree.separation = function(x) {
        if (!arguments.length) return separation;
        separation = x;
        return tree;
      };
      tree.size = function(x) {
        if (!arguments.length) return size;
        size = x;
        return tree;
      };
      return d3_layout_hierarchyRebind(tree, hierarchy);
    };
    d3.layout.treemap = function() {
      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 = 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 ((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;
      }
      var hierarchy = d3.layout.hierarchy(), round = Math.round, size = [ 1, 1 ], padding = null, pad = d3_layout_treemapPadNull, sticky = false, stickies, ratio = .5 * (1 + Math.sqrt(5));
      treemap.size = function(x) {
        if (!arguments.length) return size;
        size = x;
        return treemap;
      };
      treemap.padding = function(x) {
        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);
        }
        if (!arguments.length) return padding;
        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;
      };
      return d3_layout_hierarchyRebind(treemap, hierarchy);
    };
    d3.csv = d3_dsv(",", "text/csv");
    d3.tsv = d3_dsv("	", "text/tab-separated-values");
    d3.geo = {};
    var d3_geo_radians = Math.PI / 180;
    d3.geo.azimuthal = function() {
      function azimuthal(coordinates) {
        var x1 = coordinates[0] * d3_geo_radians - x0, y1 = coordinates[1] * d3_geo_radians, cx1 = Math.cos(x1), sx1 = Math.sin(x1), cy1 = Math.cos(y1), sy1 = Math.sin(y1), cc = mode !== "orthographic" ? sy0 * sy1 + cy0 * cy1 * cx1 : null, c, k = mode === "stereographic" ? 1 / (1 + cc) : mode === "gnomonic" ? 1 / cc : mode === "equidistant" ? (c = Math.acos(cc), c ? c / Math.sin(c) : 0) : mode === "equalarea" ? Math.sqrt(2 / (1 + cc)) : 1, x = k * cy1 * sx1, y = k * (sy0 * cy1 * cx1 - cy0 * sy1);
        return [ scale * x + translate[0], scale * y + translate[1] ];
      }
      var mode = "orthographic", origin, scale = 200, translate = [ 480, 250 ], x0, y0, cy0, sy0;
      azimuthal.invert = function(coordinates) {
        var x = (coordinates[0] - translate[0]) / scale, y = (coordinates[1] - translate[1]) / scale, p = Math.sqrt(x * x + y * y), c = mode === "stereographic" ? 2 * Math.atan(p) : mode === "gnomonic" ? Math.atan(p) : mode === "equidistant" ? p : mode === "equalarea" ? 2 * Math.asin(.5 * p) : Math.asin(p), sc = Math.sin(c), cc = Math.cos(c);
        return [ (x0 + Math.atan2(x * sc, p * cy0 * cc + y * sy0 * sc)) / d3_geo_radians, Math.asin(cc * sy0 - (p ? y * sc * cy0 / p : 0)) / d3_geo_radians ];
      };
      azimuthal.mode = function(x) {
        if (!arguments.length) return mode;
        mode = x + "";
        return azimuthal;
      };
      azimuthal.origin = function(x) {
        if (!arguments.length) return origin;
        origin = x;
        x0 = origin[0] * d3_geo_radians;
        y0 = origin[1] * d3_geo_radians;
        cy0 = Math.cos(y0);
        sy0 = Math.sin(y0);
        return azimuthal;
      };
      azimuthal.scale = function(x) {
        if (!arguments.length) return scale;
        scale = +x;
        return azimuthal;
      };
      azimuthal.translate = function(x) {
        if (!arguments.length) return translate;
        translate = [ +x[0], +x[1] ];
        return azimuthal;
      };
      return azimuthal.origin([ 0, 0 ]);
    };
    d3.geo.albers = function() {
      function albers(coordinates) {
        var t = n * (d3_geo_radians * coordinates[0] - lng0), p = Math.sqrt(C - 2 * n * Math.sin(d3_geo_radians * coordinates[1])) / n;
        return [ scale * p * Math.sin(t) + translate[0], scale * (p * Math.cos(t) - p0) + translate[1] ];
      }
      function reload() {
        var phi1 = d3_geo_radians * parallels[0], phi2 = d3_geo_radians * parallels[1], lat0 = d3_geo_radians * origin[1], s = Math.sin(phi1), c = Math.cos(phi1);
        lng0 = d3_geo_radians * origin[0];
        n = .5 * (s + Math.sin(phi2));
        C = c * c + 2 * n * s;
        p0 = Math.sqrt(C - 2 * n * Math.sin(lat0)) / n;
        return albers;
      }
      var origin = [ -98, 38 ], parallels = [ 29.5, 45.5 ], scale = 1e3, translate = [ 480, 250 ], lng0, n, C, p0;
      albers.invert = function(coordinates) {
        var x = (coordinates[0] - translate[0]) / scale, y = (coordinates[1] - translate[1]) / scale, p0y = p0 + y, t = Math.atan2(x, p0y), p = Math.sqrt(x * x + p0y * p0y);
        return [ (lng0 + t / n) / d3_geo_radians, Math.asin((C - p * p * n * n) / (2 * n)) / d3_geo_radians ];
      };
      albers.origin = function(x) {
        if (!arguments.length) return origin;
        origin = [ +x[0], +x[1] ];
        return reload();
      };
      albers.parallels = function(x) {
        if (!arguments.length) return parallels;
        parallels = [ +x[0], +x[1] ];
        return reload();
      };
      albers.scale = function(x) {
        if (!arguments.length) return scale;
        scale = +x;
        return albers;
      };
      albers.translate = function(x) {
        if (!arguments.length) return translate;
        translate = [ +x[0], +x[1] ];
        return albers;
      };
      return reload();
    };
    d3.geo.albersUsa = function() {
      function albersUsa(coordinates) {
        var lon = coordinates[0], lat = coordinates[1];
        return (lat > 50 ? alaska : lon < -140 ? hawaii : lat < 21 ? puertoRico : lower48)(coordinates);
      }
      var lower48 = d3.geo.albers();
      var alaska = d3.geo.albers().origin([ -160, 60 ]).parallels([ 55, 65 ]);
      var hawaii = d3.geo.albers().origin([ -160, 20 ]).parallels([ 8, 18 ]);
      var puertoRico = d3.geo.albers().origin([ -60, 10 ]).parallels([ 8, 18 ]);
      albersUsa.scale = function(x) {
        if (!arguments.length) return lower48.scale();
        lower48.scale(x);
        alaska.scale(x * .6);
        hawaii.scale(x);
        puertoRico.scale(x * 1.5);
        return albersUsa.translate(lower48.translate());
      };
      albersUsa.translate = function(x) {
        if (!arguments.length) return lower48.translate();
        var dz = lower48.scale() / 1e3, dx = x[0], dy = x[1];
        lower48.translate(x);
        alaska.translate([ dx - 400 * dz, dy + 170 * dz ]);
        hawaii.translate([ dx - 190 * dz, dy + 200 * dz ]);
        puertoRico.translate([ dx + 580 * dz, dy + 430 * dz ]);
        return albersUsa;
      };
      return albersUsa.scale(lower48.scale());
    };
    d3.geo.bonne = function() {
      function bonne(coordinates) {
        var x = coordinates[0] * d3_geo_radians - x0, y = coordinates[1] * d3_geo_radians - y0;
        if (y1) {
          var p = c1 + y1 - y, E = x * Math.cos(y) / p;
          x = p * Math.sin(E);
          y = p * Math.cos(E) - c1;
        } else {
          x *= Math.cos(y);
          y *= -1;
        }
        return [ scale * x + translate[0], scale * y + translate[1] ];
      }
      var scale = 200, translate = [ 480, 250 ], x0, y0, y1, c1;
      bonne.invert = function(coordinates) {
        var x = (coordinates[0] - translate[0]) / scale, y = (coordinates[1] - translate[1]) / scale;
        if (y1) {
          var c = c1 + y, p = Math.sqrt(x * x + c * c);
          y = c1 + y1 - p;
          x = x0 + p * Math.atan2(x, c) / Math.cos(y);
        } else {
          y *= -1;
          x /= Math.cos(y);
        }
        return [ x / d3_geo_radians, y / d3_geo_radians ];
      };
      bonne.parallel = function(x) {
        if (!arguments.length) return y1 / d3_geo_radians;
        c1 = 1 / Math.tan(y1 = x * d3_geo_radians);
        return bonne;
      };
      bonne.origin = function(x) {
        if (!arguments.length) return [ x0 / d3_geo_radians, y0 / d3_geo_radians ];
        x0 = x[0] * d3_geo_radians;
        y0 = x[1] * d3_geo_radians;
        return bonne;
      };
      bonne.scale = function(x) {
        if (!arguments.length) return scale;
        scale = +x;
        return bonne;
      };
      bonne.translate = function(x) {
        if (!arguments.length) return translate;
        translate = [ +x[0], +x[1] ];
        return bonne;
      };
      return bonne.origin([ 0, 0 ]).parallel(45);
    };
    d3.geo.equirectangular = function() {
      function equirectangular(coordinates) {
        var x = coordinates[0] / 360, y = -coordinates[1] / 360;
        return [ scale * x + translate[0], scale * y + translate[1] ];
      }
      var scale = 500, translate = [ 480, 250 ];
      equirectangular.invert = function(coordinates) {
        var x = (coordinates[0] - translate[0]) / scale, y = (coordinates[1] - translate[1]) / scale;
        return [ 360 * x, -360 * y ];
      };
      equirectangular.scale = function(x) {
        if (!arguments.length) return scale;
        scale = +x;
        return equirectangular;
      };
      equirectangular.translate = function(x) {
        if (!arguments.length) return translate;
        translate = [ +x[0], +x[1] ];
        return equirectangular;
      };
      return equirectangular;
    };
    d3.geo.mercator = function() {
      function mercator(coordinates) {
        var x = coordinates[0] / 360, y = -(Math.log(Math.tan(Math.PI / 4 + coordinates[1] * d3_geo_radians / 2)) / d3_geo_radians) / 360;
        return [ scale * x + translate[0], scale * Math.max(-.5, Math.min(.5, y)) + translate[1] ];
      }
      var scale = 500, translate = [ 480, 250 ];
      mercator.invert = function(coordinates) {
        var x = (coordinates[0] - translate[0]) / scale, y = (coordinates[1] - translate[1]) / scale;
        return [ 360 * x, 2 * Math.atan(Math.exp(-360 * y * d3_geo_radians)) / d3_geo_radians - 90 ];
      };
      mercator.scale = function(x) {
        if (!arguments.length) return scale;
        scale = +x;
        return mercator;
      };
      mercator.translate = function(x) {
        if (!arguments.length) return translate;
        translate = [ +x[0], +x[1] ];
        return mercator;
      };
      return mercator;
    };
    d3.geo.path = function() {
      function path(d, i) {
        if (typeof pointRadius === "function") pointCircle = d3_path_circle(pointRadius.apply(this, arguments));
        pathType(d);
        var result = buffer.length ? buffer.join("") : null;
        buffer = [];
        return result;
      }
      function project(coordinates) {
        return projection(coordinates).join(",");
      }
      function polygonArea(coordinates) {
        var sum = area(coordinates[0]), i = 0, n = coordinates.length;
        while (++i < n) sum -= area(coordinates[i]);
        return sum;
      }
      function polygonCentroid(coordinates) {
        var polygon = d3.geom.polygon(coordinates[0].map(projection)), area = polygon.area(), centroid = polygon.centroid(area < 0 ? (area *= -1, 1) : -1), x = centroid[0], y = centroid[1], z = area, i = 0, n = coordinates.length;
        while (++i < n) {
          polygon = d3.geom.polygon(coordinates[i].map(projection));
          area = polygon.area();
          centroid = polygon.centroid(area < 0 ? (area *= -1, 1) : -1);
          x -= centroid[0];
          y -= centroid[1];
          z -= area;
        }
        return [ x, y, 6 * z ];
      }
      function area(coordinates) {
        return Math.abs(d3.geom.polygon(coordinates.map(projection)).area());
      }
      var pointRadius = 4.5, pointCircle = d3_path_circle(pointRadius), projection = d3.geo.albersUsa(), buffer = [];
      var pathType = d3_geo_type({
        FeatureCollection: function(o) {
          var features = o.features, i = -1, n = features.length;
          while (++i < n) buffer.push(pathType(features[i].geometry));
        },
        Feature: function(o) {
          pathType(o.geometry);
        },
        Point: function(o) {
          buffer.push("M", project(o.coordinates), pointCircle);
        },
        MultiPoint: function(o) {
          var coordinates = o.coordinates, i = -1, n = coordinates.length;
          while (++i < n) buffer.push("M", project(coordinates[i]), pointCircle);
        },
        LineString: function(o) {
          var coordinates = o.coordinates, i = -1, n = coordinates.length;
          buffer.push("M");
          while (++i < n) buffer.push(project(coordinates[i]), "L");
          buffer.pop();
        },
        MultiLineString: function(o) {
          var coordinates = o.coordinates, i = -1, n = coordinates.length, subcoordinates, j, m;
          while (++i < n) {
            subcoordinates = coordinates[i];
            j = -1;
            m = subcoordinates.length;
            buffer.push("M");
            while (++j < m) buffer.push(project(subcoordinates[j]), "L");
            buffer.pop();
          }
        },
        Polygon: function(o) {
          var coordinates = o.coordinates, i = -1, n = coordinates.length, subcoordinates, j, m;
          while (++i < n) {
            subcoordinates = coordinates[i];
            j = -1;
            if ((m = subcoordinates.length - 1) > 0) {
              buffer.push("M");
              while (++j < m) buffer.push(project(subcoordinates[j]), "L");
              buffer[buffer.length - 1] = "Z";
            }
          }
        },
        MultiPolygon: function(o) {
          var coordinates = o.coordinates, i = -1, n = coordinates.length, subcoordinates, j, m, subsubcoordinates, k, p;
          while (++i < n) {
            subcoordinates = coordinates[i];
            j = -1;
            m = subcoordinates.length;
            while (++j < m) {
              subsubcoordinates = subcoordinates[j];
              k = -1;
              if ((p = subsubcoordinates.length - 1) > 0) {
                buffer.push("M");
                while (++k < p) buffer.push(project(subsubcoordinates[k]), "L");
                buffer[buffer.length - 1] = "Z";
              }
            }
          }
        },
        GeometryCollection: function(o) {
          var geometries = o.geometries, i = -1, n = geometries.length;
          while (++i < n) buffer.push(pathType(geometries[i]));
        }
      });
      var areaType = path.area = d3_geo_type({
        FeatureCollection: function(o) {
          var area = 0, features = o.features, i = -1, n = features.length;
          while (++i < n) area += areaType(features[i]);
          return area;
        },
        Feature: function(o) {
          return areaType(o.geometry);
        },
        Polygon: function(o) {
          return polygonArea(o.coordinates);
        },
        MultiPolygon: function(o) {
          var sum = 0, coordinates = o.coordinates, i = -1, n = coordinates.length;
          while (++i < n) sum += polygonArea(coordinates[i]);
          return sum;
        },
        GeometryCollection: function(o) {
          var sum = 0, geometries = o.geometries, i = -1, n = geometries.length;
          while (++i < n) sum += areaType(geometries[i]);
          return sum;
        }
      }, 0);
      var centroidType = path.centroid = d3_geo_type({
        Feature: function(o) {
          return centroidType(o.geometry);
        },
        Polygon: function(o) {
          var centroid = polygonCentroid(o.coordinates);
          return [ centroid[0] / centroid[2], centroid[1] / centroid[2] ];
        },
        MultiPolygon: function(o) {
          var area = 0, coordinates = o.coordinates, centroid, x = 0, y = 0, z = 0, i = -1, n = coordinates.length;
          while (++i < n) {
            centroid = polygonCentroid(coordinates[i]);
            x += centroid[0];
            y += centroid[1];
            z += centroid[2];
          }
          return [ x / z, y / z ];
        }
      });
      path.projection = function(x) {
        projection = x;
        return path;
      };
      path.pointRadius = function(x) {
        if (typeof x === "function") pointRadius = x; else {
          pointRadius = +x;
          pointCircle = d3_path_circle(pointRadius);
        }
        return path;
      };
      return path;
    };
    d3.geo.bounds = function(feature) {
      var left = Infinity, bottom = Infinity, right = -Infinity, top = -Infinity;
      d3_geo_bounds(feature, function(x, y) {
        if (x < left) left = x;
        if (x > right) right = x;
        if (y < bottom) bottom = y;
        if (y > top) top = y;
      });
      return [ [ left, bottom ], [ right, top ] ];
    };
    var d3_geo_boundsTypes = {
      Feature: d3_geo_boundsFeature,
      FeatureCollection: d3_geo_boundsFeatureCollection,
      GeometryCollection: d3_geo_boundsGeometryCollection,
      LineString: d3_geo_boundsLineString,
      MultiLineString: d3_geo_boundsMultiLineString,
      MultiPoint: d3_geo_boundsLineString,
      MultiPolygon: d3_geo_boundsMultiPolygon,
      Point: d3_geo_boundsPoint,
      Polygon: d3_geo_boundsPolygon
    };
    d3.geo.circle = function() {
      function circle() {}
      function visible(point) {
        return arc.distance(point) < radians;
      }
      function clip(coordinates) {
        var i = -1, n = coordinates.length, clipped = [], p0, p1, p2, d0, d1;
        while (++i < n) {
          d1 = arc.distance(p2 = coordinates[i]);
          if (d1 < radians) {
            if (p1) clipped.push(d3_geo_greatArcInterpolate(p1, p2)((d0 - radians) / (d0 - d1)));
            clipped.push(p2);
            p0 = p1 = null;
          } else {
            p1 = p2;
            if (!p0 && clipped.length) {
              clipped.push(d3_geo_greatArcInterpolate(clipped[clipped.length - 1], p1)((radians - d0) / (d1 - d0)));
              p0 = p1;
            }
          }
          d0 = d1;
        }
        p0 = coordinates[0];
        p1 = clipped[0];
        if (p1 && p2[0] === p0[0] && p2[1] === p0[1] && !(p2[0] === p1[0] && p2[1] === p1[1])) {
          clipped.push(p1);
        }
        return resample(clipped);
      }
      function resample(coordinates) {
        var i = 0, n = coordinates.length, j, m, resampled = n ? [ coordinates[0] ] : coordinates, resamples, origin = arc.source();
        while (++i < n) {
          resamples = arc.source(coordinates[i - 1])(coordinates[i]).coordinates;
          for (j = 0, m = resamples.length; ++j < m; ) resampled.push(resamples[j]);
        }
        arc.source(origin);
        return resampled;
      }
      var origin = [ 0, 0 ], degrees = 90 - .01, radians = degrees * d3_geo_radians, arc = d3.geo.greatArc().source(origin).target(d3_identity);
      circle.clip = function(d) {
        if (typeof origin === "function") arc.source(origin.apply(this, arguments));
        return clipType(d) || null;
      };
      var clipType = d3_geo_type({
        FeatureCollection: function(o) {
          var features = o.features.map(clipType).filter(d3_identity);
          return features && (o = Object.create(o), o.features = features, o);
        },
        Feature: function(o) {
          var geometry = clipType(o.geometry);
          return geometry && (o = Object.create(o), o.geometry = geometry, o);
        },
        Point: function(o) {
          return visible(o.coordinates) && o;
        },
        MultiPoint: function(o) {
          var coordinates = o.coordinates.filter(visible);
          return coordinates.length && {
            type: o.type,
            coordinates: coordinates
          };
        },
        LineString: function(o) {
          var coordinates = clip(o.coordinates);
          return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);
        },
        MultiLineString: function(o) {
          var coordinates = o.coordinates.map(clip).filter(function(d) {
            return d.length;
          });
          return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);
        },
        Polygon: function(o) {
          var coordinates = o.coordinates.map(clip);
          return coordinates[0].length && (o = Object.create(o), o.coordinates = coordinates, o);
        },
        MultiPolygon: function(o) {
          var coordinates = o.coordinates.map(function(d) {
            return d.map(clip);
          }).filter(function(d) {
            return d[0].length;
          });
          return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);
        },
        GeometryCollection: function(o) {
          var geometries = o.geometries.map(clipType).filter(d3_identity);
          return geometries.length && (o = Object.create(o), o.geometries = geometries, o);
        }
      });
      circle.origin = function(x) {
        if (!arguments.length) return origin;
        origin = x;
        if (typeof origin !== "function") arc.source(origin);
        return circle;
      };
      circle.angle = function(x) {
        if (!arguments.length) return degrees;
        radians = (degrees = +x) * d3_geo_radians;
        return circle;
      };
      return d3.rebind(circle, arc, "precision");
    };
    d3.geo.greatArc = function() {
      function greatArc() {
        var d = greatArc.distance.apply(this, arguments), t = 0, dt = precision / d, coordinates = [ p0 ];
        while ((t += dt) < 1) coordinates.push(interpolate(t));
        coordinates.push(p1);
        return {
          type: "LineString",
          coordinates: coordinates
        };
      }
      var source = d3_geo_greatArcSource, p0, target = d3_geo_greatArcTarget, p1, precision = 6 * d3_geo_radians, interpolate = d3_geo_greatArcInterpolator();
      greatArc.distance = function() {
        if (typeof source === "function") interpolate.source(p0 = source.apply(this, arguments));
        if (typeof target === "function") interpolate.target(p1 = target.apply(this, arguments));
        return interpolate.distance();
      };
      greatArc.source = function(_) {
        if (!arguments.length) return source;
        source = _;
        if (typeof source !== "function") interpolate.source(p0 = source);
        return greatArc;
      };
      greatArc.target = function(_) {
        if (!arguments.length) return target;
        target = _;
        if (typeof target !== "function") interpolate.target(p1 = target);
        return greatArc;
      };
      greatArc.precision = function(_) {
        if (!arguments.length) return precision / d3_geo_radians;
        precision = _ * d3_geo_radians;
        return greatArc;
      };
      return greatArc;
    };
    d3.geo.greatCircle = d3.geo.circle;
    d3.geom = {};
    d3.geom.contour = function(grid, start) {
      var s = start || d3_geom_contourStart(grid), c = [], x = s[0], y = s[1], dx = 0, dy = 0, pdx = NaN, pdy = NaN, i = 0;
      do {
        i = 0;
        if (grid(x - 1, y - 1)) i += 1;
        if (grid(x, y - 1)) i += 2;
        if (grid(x - 1, y)) i += 4;
        if (grid(x, y)) i += 8;
        if (i === 6) {
          dx = pdy === -1 ? -1 : 1;
          dy = 0;
        } else if (i === 9) {
          dx = 0;
          dy = pdx === 1 ? -1 : 1;
        } else {
          dx = d3_geom_contourDx[i];
          dy = d3_geom_contourDy[i];
        }
        if (dx != pdx && dy != pdy) {
          c.push([ x, y ]);
          pdx = dx;
          pdy = dy;
        }
        x += dx;
        y += dy;
      } while (s[0] != x || s[1] != y);
      return c;
    };
    var d3_geom_contourDx = [ 1, 0, 1, 1, -1, 0, -1, 1, 0, 0, 0, 0, -1, 0, -1, NaN ], d3_geom_contourDy = [ 0, -1, 0, 0, 0, -1, 0, 0, 1, -1, 1, 1, 0, -1, 0, NaN ];
    d3.geom.hull = function(vertices) {
      if (vertices.length < 3) return [];
      var len = vertices.length, plen = len - 1, points = [], stack = [], i, j, h = 0, x1, y1, x2, y2, u, v, a, sp;
      for (i = 1; i < len; ++i) {
        if (vertices[i][1] < vertices[h][1]) {
          h = i;
        } else if (vertices[i][1] == vertices[h][1]) {
          h = vertices[i][0] < vertices[h][0] ? i : h;
        }
      }
      for (i = 0; i < len; ++i) {
        if (i === h) continue;
        y1 = vertices[i][1] - vertices[h][1];
        x1 = vertices[i][0] - vertices[h][0];
        points.push({
          angle: Math.atan2(y1, x1),
          index: i
        });
      }
      points.sort(function(a, b) {
        return a.angle - b.angle;
      });
      a = points[0].angle;
      v = points[0].index;
      u = 0;
      for (i = 1; i < plen; ++i) {
        j = points[i].index;
        if (a == points[i].angle) {
          x1 = vertices[v][0] - vertices[h][0];
          y1 = vertices[v][1] - vertices[h][1];
          x2 = vertices[j][0] - vertices[h][0];
          y2 = vertices[j][1] - vertices[h][1];
          if (x1 * x1 + y1 * y1 >= x2 * x2 + y2 * y2) {
            points[i].index = -1;
          } else {
            points[u].index = -1;
            a = points[i].angle;
            u = i;
            v = j;
          }
        } else {
          a = points[i].angle;
          u = i;
          v = j;
        }
      }
      stack.push(h);
      for (i = 0, j = 0; i < 2; ++j) {
        if (points[j].index !== -1) {
          stack.push(points[j].index);
          i++;
        }
      }
      sp = stack.length;
      for (; j < plen; ++j) {
        if (points[j].index === -1) continue;
        while (!d3_geom_hullCCW(stack[sp - 2], stack[sp - 1], points[j].index, vertices)) {
          --sp;
        }
        stack[sp++] = points[j].index;
      }
      var poly = [];
      for (i = 0; i < sp; ++i) {
        poly.push(vertices[stack[i]]);
      }
      return poly;
    };
    d3.geom.polygon = function(coordinates) {
      coordinates.area = function() {
        var i = 0, n = coordinates.length, a = coordinates[n - 1][0] * coordinates[0][1], b = coordinates[n - 1][1] * coordinates[0][0];
        while (++i < n) {
          a += coordinates[i - 1][0] * coordinates[i][1];
          b += coordinates[i - 1][1] * coordinates[i][0];
        }
        return (b - a) * .5;
      };
      coordinates.centroid = function(k) {
        var i = -1, n = coordinates.length, x = 0, y = 0, a, b = coordinates[n - 1], c;
        if (!arguments.length) k = -1 / (6 * coordinates.area());
        while (++i < n) {
          a = b;
          b = coordinates[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 ];
      };
      coordinates.clip = function(subject) {
        var input, i = -1, n = coordinates.length, j, m, a = coordinates[n - 1], b, c, d;
        while (++i < n) {
          input = subject.slice();
          subject.length = 0;
          b = coordinates[i];
          c = input[(m = input.length) - 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;
          }
          a = b;
        }
        return subject;
      };
      return coordinates;
    };
    d3.geom.voronoi = function(vertices) {
      var polygons = vertices.map(function() {
        return [];
      });
      d3_voronoi_tessellate(vertices, function(e) {
        var s1, s2, x1, x2, y1, y2;
        if (e.a === 1 && e.b >= 0) {
          s1 = e.ep.r;
          s2 = e.ep.l;
        } else {
          s1 = e.ep.l;
          s2 = e.ep.r;
        }
        if (e.a === 1) {
          y1 = s1 ? s1.y : -1e6;
          x1 = e.c - e.b * y1;
          y2 = s2 ? s2.y : 1e6;
          x2 = e.c - e.b * y2;
        } else {
          x1 = s1 ? s1.x : -1e6;
          y1 = e.c - e.a * x1;
          x2 = s2 ? s2.x : 1e6;
          y2 = e.c - e.a * x2;
        }
        var v1 = [ x1, y1 ], v2 = [ x2, y2 ];
        polygons[e.region.l.index].push(v1, v2);
        polygons[e.region.r.index].push(v1, v2);
      });
      return polygons.map(function(polygon, i) {
        var cx = vertices[i][0], cy = vertices[i][1];
        polygon.forEach(function(v) {
          v.angle = Math.atan2(v[0] - cx, v[1] - cy);
        });
        return polygon.sort(function(a, b) {
          return a.angle - b.angle;
        }).filter(function(d, i) {
          return !i || d.angle - polygon[i - 1].angle > 1e-10;
        });
      });
    };
    var d3_voronoi_opposite = {
      l: "r",
      r: "l"
    };
    d3.geom.delaunay = function(vertices) {
      var edges = vertices.map(function() {
        return [];
      }), triangles = [];
      d3_voronoi_tessellate(vertices, function(e) {
        edges[e.region.l.index].push(vertices[e.region.r.index]);
      });
      edges.forEach(function(edge, i) {
        var v = vertices[i], cx = v[0], cy = v[1];
        edge.forEach(function(v) {
          v.angle = Math.atan2(v[0] - cx, v[1] - cy);
        });
        edge.sort(function(a, b) {
          return a.angle - b.angle;
        });
        for (var j = 0, m = edge.length - 1; j < m; j++) {
          triangles.push([ v, edge[j], edge[j + 1] ]);
        }
      });
      return triangles;
    };
    d3.geom.quadtree = function(points, x1, y1, x2, y2) {
      function insert(n, p, x1, y1, x2, y2) {
        if (isNaN(p.x) || isNaN(p.y)) return;
        if (n.leaf) {
          var v = n.point;
          if (v) {
            if (Math.abs(v.x - p.x) + Math.abs(v.y - p.y) < .01) {
              insertChild(n, p, x1, y1, x2, y2);
            } else {
              n.point = null;
              insertChild(n, v, x1, y1, x2, y2);
              insertChild(n, p, x1, y1, x2, y2);
            }
          } else {
            n.point = p;
          }
        } else {
          insertChild(n, p, x1, y1, x2, y2);
        }
      }
      function insertChild(n, p, x1, y1, x2, y2) {
        var sx = (x1 + x2) * .5, sy = (y1 + y2) * .5, right = p.x >= sx, bottom = p.y >= sy, i = (bottom << 1) + right;
        n.leaf = false;
        n = n.nodes[i] || (n.nodes[i] = d3_geom_quadtreeNode());
        if (right) x1 = sx; else x2 = sx;
        if (bottom) y1 = sy; else y2 = sy;
        insert(n, p, x1, y1, x2, y2);
      }
      var p, i = -1, n = points.length;
      if (n && isNaN(points[0].x)) points = points.map(d3_geom_quadtreePoint);
      if (arguments.length < 5) {
        if (arguments.length === 3) {
          y2 = x2 = y1;
          y1 = x1;
        } else {
          x1 = y1 = Infinity;
          x2 = y2 = -Infinity;
          while (++i < n) {
            p = points[i];
            if (p.x < x1) x1 = p.x;
            if (p.y < y1) y1 = p.y;
            if (p.x > x2) x2 = p.x;
            if (p.y > y2) y2 = p.y;
          }
          var dx = x2 - x1, dy = y2 - y1;
          if (dx > dy) y2 = y1 + dx; else x2 = x1 + dy;
        }
      }
      var root = d3_geom_quadtreeNode();
      root.add = function(p) {
        insert(root, p, x1, y1, x2, y2);
      };
      root.visit = function(f) {
        d3_geom_quadtreeVisit(f, root, x1, y1, x2, y2);
      };
      points.forEach(root.add);
      return root;
    };
    d3.time = {};
    var d3_time = Date, d3_time_daySymbols = [ "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" ];
    d3_time_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;
    var d3_time_formatDateTime = "%a %b %e %H:%M:%S %Y", d3_time_formatDate = "%m/%d/%y", d3_time_formatTime = "%H:%M:%S";
    var d3_time_days = d3_time_daySymbols, d3_time_dayAbbreviations = d3_time_days.map(d3_time_formatAbbreviate), d3_time_months = [ "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" ], d3_time_monthAbbreviations = d3_time_months.map(d3_time_formatAbbreviate);
    d3.time.format = function(template) {
      function format(date) {
        var string = [], i = -1, j = 0, c, f;
        while (++i < n) {
          if (template.charCodeAt(i) == 37) {
            string.push(template.substring(j, i), (f = d3_time_formats[c = template.charAt(++i)]) ? f(date) : c);
            j = i + 1;
          }
        }
        string.push(template.substring(j, i));
        return string.join("");
      }
      var n = template.length;
      format.parse = function(string) {
        var d = {
          y: 1900,
          m: 0,
          d: 1,
          H: 0,
          M: 0,
          S: 0,
          L: 0
        }, 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 date = new d3_time;
        date.setFullYear(d.y, d.m, d.d);
        date.setHours(d.H, d.M, d.S, d.L);
        return date;
      };
      format.toString = function() {
        return template;
      };
      return format;
    };
    var d3_time_zfill2 = d3.format("02d"), d3_time_zfill3 = d3.format("03d"), d3_time_zfill4 = d3.format("04d"), d3_time_sfill2 = d3.format("2d");
    var d3_time_dayRe = d3_time_formatRe(d3_time_days), d3_time_dayAbbrevRe = d3_time_formatRe(d3_time_dayAbbreviations), d3_time_monthRe = d3_time_formatRe(d3_time_months), d3_time_monthLookup = d3_time_formatLookup(d3_time_months), d3_time_monthAbbrevRe = d3_time_formatRe(d3_time_monthAbbreviations), d3_time_monthAbbrevLookup = d3_time_formatLookup(d3_time_monthAbbreviations);
    var d3_time_formats = {
      a: function(d) {
        return d3_time_dayAbbreviations[d.getDay()];
      },
      A: function(d) {
        return d3_time_days[d.getDay()];
      },
      b: function(d) {
        return d3_time_monthAbbreviations[d.getMonth()];
      },
      B: function(d) {
        return d3_time_months[d.getMonth()];
      },
      c: d3.time.format(d3_time_formatDateTime),
      d: function(d) {
        return d3_time_zfill2(d.getDate());
      },
      e: function(d) {
        return d3_time_sfill2(d.getDate());
      },
      H: function(d) {
        return d3_time_zfill2(d.getHours());
      },
      I: function(d) {
        return d3_time_zfill2(d.getHours() % 12 || 12);
      },
      j: function(d) {
        return d3_time_zfill3(1 + d3.time.dayOfYear(d));
      },
      L: function(d) {
        return d3_time_zfill3(d.getMilliseconds());
      },
      m: function(d) {
        return d3_time_zfill2(d.getMonth() + 1);
      },
      M: function(d) {
        return d3_time_zfill2(d.getMinutes());
      },
      p: function(d) {
        return d.getHours() >= 12 ? "PM" : "AM";
      },
      S: function(d) {
        return d3_time_zfill2(d.getSeconds());
      },
      U: function(d) {
        return d3_time_zfill2(d3.time.sundayOfYear(d));
      },
      w: function(d) {
        return d.getDay();
      },
      W: function(d) {
        return d3_time_zfill2(d3.time.mondayOfYear(d));
      },
      x: d3.time.format(d3_time_formatDate),
      X: d3.time.format(d3_time_formatTime),
      y: function(d) {
        return d3_time_zfill2(d.getFullYear() % 100);
      },
      Y: function(d) {
        return d3_time_zfill4(d.getFullYear() % 1e4);
      },
      Z: d3_time_zone,
      "%": function(d) {
        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,
      L: d3_time_parseMilliseconds,
      m: d3_time_parseMonthNumber,
      M: d3_time_parseMinutes,
      p: d3_time_parseAmPm,
      S: d3_time_parseSeconds,
      x: d3_time_parseLocaleDate,
      X: d3_time_parseLocaleTime,
      y: d3_time_parseYear,
      Y: d3_time_parseFullYear
    };
    var d3_time_numberRe = /^\s*\d+/;
    var d3_time_amPmLookup = d3.map({
      am: 0,
      pm: 1
    });
    d3.time.format.utc = function(template) {
      function format(date) {
        try {
          d3_time = d3_time_utc;
          var utc = new d3_time;
          utc._ = date;
          return local(utc);
        } finally {
          d3_time = Date;
        }
      }
      var local = d3.time.format(template);
      format.parse = function(string) {
        try {
          d3_time = d3_time_utc;
          var date = local.parse(string);
          return date && date._;
        } finally {
          d3_time = Date;
        }
      };
      format.toString = local.toString;
      return format;
    };
    var d3_time_formatIso = d3.time.format.utc("%Y-%m-%dT%H:%M:%S.%LZ");
    d3.time.format.iso = Date.prototype.toISOString ? d3_time_formatIsoNative : d3_time_formatIso;
    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_time(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_time(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_time((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.day = d3_time_interval(function(date) {
      var day = new d3_time(1970, 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);
    };
    d3_time_daySymbols.forEach(function(day, i) {
      day = day.toLowerCase();
      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;
    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;
    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;
    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_scaleLocalFormats = [ [ d3.time.format("%Y"), function(d) {
      return true;
    } ], [ d3.time.format("%B"), function(d) {
      return d.getMonth();
    } ], [ d3.time.format("%b %d"), function(d) {
      return d.getDate() != 1;
    } ], [ d3.time.format("%a %d"), function(d) {
      return d.getDay() && d.getDate() != 1;
    } ], [ d3.time.format("%I %p"), function(d) {
      return d.getHours();
    } ], [ d3.time.format("%I:%M"), function(d) {
      return d.getMinutes();
    } ], [ d3.time.format(":%S"), function(d) {
      return d.getSeconds();
    } ], [ d3.time.format(".%L"), function(d) {
      return d.getMilliseconds();
    } ] ];
    var d3_time_scaleLinear = d3.scale.linear(), d3_time_scaleLocalFormat = d3_time_scaleFormat(d3_time_scaleLocalFormats);
    d3_time_scaleLocalMethods.year = function(extent, m) {
      return d3_time_scaleLinear.domain(extent.map(d3_time_scaleGetYear)).ticks(m).map(d3_time_scaleSetYear);
    };
    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_scaleUTCFormats = [ [ d3.time.format.utc("%Y"), function(d) {
      return true;
    } ], [ d3.time.format.utc("%B"), function(d) {
      return d.getUTCMonth();
    } ], [ d3.time.format.utc("%b %d"), function(d) {
      return d.getUTCDate() != 1;
    } ], [ d3.time.format.utc("%a %d"), function(d) {
      return d.getUTCDay() && d.getUTCDate() != 1;
    } ], [ d3.time.format.utc("%I %p"), function(d) {
      return d.getUTCHours();
    } ], [ d3.time.format.utc("%I:%M"), function(d) {
      return d.getUTCMinutes();
    } ], [ d3.time.format.utc(":%S"), function(d) {
      return d.getUTCSeconds();
    } ], [ d3.time.format.utc(".%L"), function(d) {
      return d.getUTCMilliseconds();
    } ] ];
    var d3_time_scaleUTCFormat = d3_time_scaleFormat(d3_time_scaleUTCFormats);
    d3_time_scaleUTCMethods.year = function(extent, m) {
      return d3_time_scaleLinear.domain(extent.map(d3_time_scaleUTCGetYear)).ticks(m).map(d3_time_scaleUTCSetYear);
    };
    d3.time.scale.utc = function() {
      return d3_time_scale(d3.scale.linear(), d3_time_scaleUTCMethods, d3_time_scaleUTCFormat);
    };
  })();