text: /**
   * @license Highcharts JS v6.0.1 (2017-10-05)
   *
   * (c) 2016 Highsoft AS
   * Authors: Jon Arild Nygard
   *
   * License: www.highcharts.com/license
   */
  'use strict';
  (function (factory) {
      if (typeof module === 'object' && module.exports) {
          module.exports = factory;
      } else {
          factory(Highcharts);
      }
  }(function (Highcharts) {
      (function (H) {
          /**
           * (c) 2010-2017 Torstein Honsi
           *
           * License: www.highcharts.com/license
           */
          var deg2rad = H.deg2rad,
              isNumber = H.isNumber,
              pick = H.pick,
              relativeLength = H.relativeLength;
          H.CenteredSeriesMixin = {
              /**
               * Get the center of the pie based on the size and center options relative to the
               * plot area. Borrowed by the polar and gauge series types.
               */
              getCenter: function () {
  
                  var options = this.options,
                      chart = this.chart,
                      slicingRoom = 2 * (options.slicedOffset || 0),
                      handleSlicingRoom,
                      plotWidth = chart.plotWidth - 2 * slicingRoom,
                      plotHeight = chart.plotHeight - 2 * slicingRoom,
                      centerOption = options.center,
                      positions = [pick(centerOption[0], '50%'), pick(centerOption[1], '50%'), options.size || '100%', options.innerSize || 0],
                      smallestSize = Math.min(plotWidth, plotHeight),
                      i,
                      value;
  
                  for (i = 0; i < 4; ++i) {
                      value = positions[i];
                      handleSlicingRoom = i < 2 || (i === 2 && /%$/.test(value));
  
                      // i == 0: centerX, relative to width
                      // i == 1: centerY, relative to height
                      // i == 2: size, relative to smallestSize
                      // i == 3: innerSize, relative to size
                      positions[i] = relativeLength(value, [plotWidth, plotHeight, smallestSize, positions[2]][i]) +
                          (handleSlicingRoom ? slicingRoom : 0);
  
                  }
                  // innerSize cannot be larger than size (#3632)
                  if (positions[3] > positions[2]) {
                      positions[3] = positions[2];
                  }
                  return positions;
              },
              /**
               * getStartAndEndRadians - Calculates start and end angles in radians.
               * Used in series types such as pie and sunburst.
               *
               * @param  {Number} start Start angle in degrees.
               * @param  {Number} end Start angle in degrees.
               * @return {object} Returns an object containing start and end angles as
               * radians.
               */
              getStartAndEndRadians: function getStartAndEndRadians(start, end) {
                  var startAngle = isNumber(start) ? start : 0, // must be a number
                      endAngle = (
                          (
                              isNumber(end) && // must be a number
                              end > startAngle && // must be larger than the start angle
                              // difference must be less than 360 degrees
                              (end - startAngle) < 360
                          ) ?
                              end :
                          startAngle + 360
                      ),
                      correction = -90;
                  return {
                      start: deg2rad * (startAngle + correction),
                      end: deg2rad * (endAngle + correction)
                  };
              }
          };
  
      }(Highcharts));
      var draw = (function () {
          var isFn = function (x) {
              return typeof x === 'function';
          };
  
          /**
           * draw - Handles the drawing of a point.
           * TODO: add type checking.
           *
           * @param  {object} params Parameters.
           * @return {undefined} Returns undefined.
           */
          var draw = function draw(params) {
              var point = this,
                  graphic = point.graphic,
                  animate = params.animate,
                  attr = params.attr,
                  onComplete = params.onComplete,
                  css = params.css,
                  group = params.group,
                  renderer = params.renderer,
                  shape = params.shapeArgs,
                  type = params.shapeType;
  
              if (point.shouldDraw()) {
                  if (!graphic) {
                      point.graphic = graphic = renderer[type](shape).add(group);
                  }
                  graphic.css(css).attr(attr).animate(animate, undefined, onComplete);
              } else if (graphic) {
                  graphic.animate(animate, undefined, function () {
                      point.graphic = graphic = graphic.destroy();
                      if (isFn(onComplete)) {
                          onComplete();
                      }
                  });
              }
          };
          return draw;
      }());
      var result = (function (H) {
          var each = H.each,
              extend = H.extend,
              isBoolean = function (x) {
                  return typeof x === 'boolean';
              },
              isFn = function (x) {
                  return typeof x === 'function';
              },
              pick = H.pick;
          // TODO Combine buildTree and buildNode with setTreeValues
          // TODO Remove logic from Treemap and make it utilize this mixin.
          var setTreeValues = function setTreeValues(tree, options) {
              var before = options.before,
                  idRoot = options.idRoot,
                  mapIdToNode = options.mapIdToNode,
                  nodeRoot = mapIdToNode[idRoot],
                  levelIsConstant = (
                      isBoolean(options.levelIsConstant) ?
                          options.levelIsConstant :
                          true
                  ),
                  points = options.points,
                  point = points[tree.i],
                  optionsPoint = point && point.options || {},
                  childrenTotal = 0,
                  children = [],
                  value;
              extend(tree, {
                  levelDynamic: tree.level - (levelIsConstant ? 0 : nodeRoot.level),
                  name: pick(point && point.name, ''),
                  visible: (
                      idRoot === tree.id ||
                      (isBoolean(options.visible) ? options.visible : false)
                  )
              });
              if (isFn(before)) {
                  tree = before(tree, options);
              }
              // First give the children some values
              each(tree.children, function (child, i) {
                  var newOptions = extend({}, options);
                  extend(newOptions, {
                      index: i,
                      siblings: tree.children.length,
                      visible: tree.visible
                  });
                  child = setTreeValues(child, newOptions);
                  children.push(child);
                  if (child.visible) {
                      childrenTotal += child.val;
                  }
              });
              tree.visible = childrenTotal > 0 || tree.visible;
              // Set the values
              value = pick(optionsPoint.value, childrenTotal);
              extend(tree, {
                  children: children,
                  childrenTotal: childrenTotal,
                  isLeaf: tree.visible && !childrenTotal,
                  val: value
              });
              return tree;
          };
  
          var getColor = function getColor(node, options) {
              var index = options.index,
                  levelMap = options.levelMap,
                  parentColor = options.parentColor,
                  parentColorIndex = options.parentColorIndex,
                  series = options.series,
                  colors = options.colors,
                  siblings = options.siblings,
                  points = series.points,
                  getColorByPoint,
                  point,
                  level,
                  colorByPoint,
                  color,
                  colorIndex;
  
              function variation(color) {
                  var colorVariation = level && level.colorVariation;
                  if (colorVariation) {
                      if (colorVariation.key === 'brightness') {
                          return H.color(color).brighten(
                              colorVariation.to * (index / siblings)
                          ).get();
                      }
                  }
  
                  return color;
              }
  
              if (node) {
                  point = points[node.i];
                  level = levelMap[node.levelDynamic] || {};
                  getColorByPoint = (
                      point &&
                      (
                          isBoolean(level.colorByPoint) ?
                              level.colorByPoint :
                              !!series.options.colorByPoint
                      )
                  );
                  if (getColorByPoint) {
                      colorByPoint = colors[(point.index % colors.length)];
                  }
                  // Select either point color, level color or inherited color.
                  color = pick(
                      point && point.options.color,
                      level && level.color,
                      colorByPoint,
                      parentColor && variation(parentColor),
                      series.color
                  );
                  colorIndex = pick(
                      point && point.options.colorIndex,
                      level && level.colorIndex,
                      parentColorIndex,
                      options.colorIndex
                  );
              }
              return {
                  color: color,
                  colorIndex: colorIndex
              };
          };
  
          var result = {
              getColor: getColor,
              setTreeValues: setTreeValues
          };
          return result;
      }(Highcharts));
      (function (H, mixinTreeSeries) {
          /**
           * (c) 2014 Highsoft AS
           * Authors: Jon Arild Nygard / Oystein Moseng
           *
           * License: www.highcharts.com/license
           */
  
          var seriesType = H.seriesType,
              seriesTypes = H.seriesTypes,
              map = H.map,
              merge = H.merge,
              extend = H.extend,
              noop = H.noop,
              each = H.each,
              getColor = mixinTreeSeries.getColor,
              grep = H.grep,
              isNumber = H.isNumber,
              isString = H.isString,
              pick = H.pick,
              Series = H.Series,
              stableSort = H.stableSort,
              color = H.Color,
              eachObject = function (list, func, context) {
                  context = context || this;
                  H.objectEach(list, function (val, key) {
                      func.call(context, val, key, list);
                  });
              },
              reduce = H.reduce,
          // @todo find correct name for this function. 
          // @todo Similar to reduce, this function is likely redundant
              recursive = function (item, func, context) {
                  var next;
                  context = context || this;
                  next = func.call(context, item);
                  if (next !== false) {
                      recursive(next, func, context);
                  }
              };
  
          /**
           * A treemap displays hierarchical data using nested rectangles. The data can be
           * laid out in varying ways depending on options.
           *
           * @sample highcharts/demo/treemap-large-dataset/ Treemap
           *
           * @extends {plotOptions.scatter}
           * @excluding marker
           * @product highcharts
           * @optionparent plotOptions.treemap
           */
          seriesType('treemap', 'scatter', {
  
              /**
               * When enabled the user can click on a point which is a parent and
               * zoom in on its children.
               *
               * @type {Boolean}
               * @sample {highcharts} highcharts/plotoptions/treemap-allowdrilltonode/ Enabled
               * @default false
               * @since 4.1.0
               * @product highcharts
               * @apioption plotOptions.treemap.allowDrillToNode
               */
  
              /**
               * When the series contains less points than the crop threshold, all
               * points are drawn, event if the points fall outside the visible plot
               * area at the current zoom. The advantage of drawing all points (including
               * markers and columns), is that animation is performed on updates.
               * On the other hand, when the series contains more points than the
               * crop threshold, the series data is cropped to only contain points
               * that fall within the plot area. The advantage of cropping away invisible
               * points is to increase performance on large series.
               *
               * @type {Number}
               * @default 300
               * @since 4.1.0
               * @product highcharts
               * @apioption plotOptions.treemap.cropThreshold
               */
  
              /**
               * This option decides if the user can interact with the parent nodes
               * or just the leaf nodes. When this option is undefined, it will be
               * true by default. However when allowDrillToNode is true, then it will
               * be false by default.
               *
               * @type {Boolean}
               * @sample {highcharts} highcharts/plotoptions/treemap-interactbyleaf-false/ False
               * @sample {highcharts} highcharts/plotoptions/treemap-interactbyleaf-true-and-allowdrilltonode/ InteractByLeaf and allowDrillToNode is true
               * @since 4.1.2
               * @product highcharts
               * @apioption plotOptions.treemap.interactByLeaf
               */
  
              /**
               * The sort index of the point inside the treemap level.
               *
               * @type {Number}
               * @sample {highcharts} highcharts/plotoptions/treemap-sortindex/ Sort by years
               * @since 4.1.10
               * @product highcharts
               * @apioption plotOptions.treemap.sortIndex
               */
  
              /**
               * Whether to display this series type or specific series item in the
               * legend.
               *
               * @type {Boolean}
               * @default false
               * @product highcharts
               */
              showInLegend: false,
  
              /**
               * @ignore
               */
              marker: false,
  
              /**
               * @extends plotOptions.heatmap.dataLabels
               * @since 4.1.0
               * @product highcharts
               */
              dataLabels: {
                  enabled: true,
                  defer: false,
                  verticalAlign: 'middle',
                  formatter: function () { // #2945
                      return this.point.name || this.point.id;
                  },
                  inside: true
              },
  
              tooltip: {
                  headerFormat: '',
                  pointFormat: '<b>{point.name}</b>: {point.value}<br/>'
              },
  
              /**
               * Whether to ignore hidden points when the layout algorithm runs.
               * If `false`, hidden points will leave open spaces.
               *
               * @type {Boolean}
               * @default true
               * @since 5.0.8
               * @product highcharts
               */
              ignoreHiddenPoint: true,
  
              /**
               * This option decides which algorithm is used for setting position
               * and dimensions of the points. Can be one of `sliceAndDice`, `stripes`,
               *  `squarified` or `strip`.
               *
               * @validvalue ["sliceAndDice", "stripes", "squarified", "strip"]
               * @type {String}
               * @see [How to write your own algorithm](http://www.highcharts.com/docs/chart-
               * and-series-types/treemap)
               * @sample {highcharts} highcharts/plotoptions/treemap-layoutalgorithm-sliceanddice/ SliceAndDice by default
               * @sample {highcharts} highcharts/plotoptions/treemap-layoutalgorithm-stripes/ Stripes
               * @sample {highcharts} highcharts/plotoptions/treemap-layoutalgorithm-squarified/ Squarified
               * @sample {highcharts} highcharts/plotoptions/treemap-layoutalgorithm-strip/ Strip
               * @default sliceAndDice
               * @since 4.1.0
               * @product highcharts
               */
              layoutAlgorithm: 'sliceAndDice',
  
              /**
               * Defines which direction the layout algorithm will start drawing.
               *  Possible values are "vertical" and "horizontal".
               *
               * @validvalue ["vertical", "horizontal"]
               * @type {String}
               * @default vertical
               * @since 4.1.0
               * @product highcharts
               */
              layoutStartingDirection: 'vertical',
  
              /**
               * Enabling this option will make the treemap alternate the drawing
               * direction between vertical and horizontal. The next levels starting
               * direction will always be the opposite of the previous.
               *
               * @type {Boolean}
               * @sample {highcharts} highcharts/plotoptions/treemap-alternatestartingdirection-true/ Enabled
               * @default false
               * @since 4.1.0
               * @product highcharts
               */
              alternateStartingDirection: false,
  
              /**
               * Used together with the levels and allowDrillToNode options. When
               * set to false the first level visible when drilling is considered
               * to be level one. Otherwise the level will be the same as the tree
               * structure.
               *
               * @validvalue [true, false]
               * @type {Boolean}
               * @default true
               * @since 4.1.0
               * @product highcharts
               */
              levelIsConstant: true,
  
              /**
               * Options for the button appearing when drilling down in a treemap.
               */
              drillUpButton: {
  
                  /**
                   * The position of the button.
                   */
                  position: {
  
                      /**
                       * Horizontal alignment of the button.
                       * @validvalue ["left", "center", "right"]
                       */
                      align: 'right',
  
                      /**
                       * Horizontal offset of the button.
                       * @default -10
                       * @type {Number}
                       */
                      x: -10,
  
                      /**
                       * Vertical offset of the button.
                       */
                      y: 10
  
                      /**
                       * Vertical alignment of the button.
                       *
                       * @default top
                       * @validvalue ["top", "middle", "bottom"]
                       * @apioption plotOptions.treemap.drillUpButton.position.verticalAlign
                       */
                  }
              },
  
  
              /**
               * Set options on specific levels. Takes precedence over series options,
               * but not point options.
               *
               * @type {Array<Object>}
               * @sample {highcharts} highcharts/plotoptions/treemap-levels/
               *         Styling dataLabels and borders
               * @sample {highcharts} highcharts/demo/treemap-with-levels/
               *         Different layoutAlgorithm
               * @since 4.1.0
               * @product highcharts
               * @apioption plotOptions.treemap.levels
               */
  
              /**
               * Can set a `borderColor` on all points which lies on the same level.
               *
               * @type {Color}
               * @since 4.1.0
               * @product highcharts
               * @apioption plotOptions.treemap.levels.borderColor
               */
  
              /**
               * Set the dash style of the border of all the point which lies on the
               * level. See <a href"#plotoptions.scatter.dashstyle">
               * plotOptions.scatter.dashStyle</a> for possible options.
               *
               * @type {String}
               * @since 4.1.0
               * @product highcharts
               * @apioption plotOptions.treemap.levels.borderDashStyle
               */
  
              /**
               * Can set the borderWidth on all points which lies on the same level.
               *
               * @type {Number}
               * @since 4.1.0
               * @product highcharts
               * @apioption plotOptions.treemap.levels.borderWidth
               */
  
              /**
               * Can set a color on all points which lies on the same level.
               *
               * @type {Color}
               * @since 4.1.0
               * @product highcharts
               * @apioption plotOptions.treemap.levels.color
               */
  
              /**
               * A configuration object to define how the color of a child varies from the
               * parent's color. The variation is distributed among the children of node.
               * For example when setting brightness, the brightness change will range
               * from the parent's original brightness on the first child, to the amount
               * set in the `to` setting on the last node. This allows a gradient-like
               * color scheme that sets children out from each other while highlighting
               * the grouping on treemaps and sectors on sunburst charts.
               *
               * @type {Object}
               * @sample highcharts/demo/sunburst/ Sunburst with color variation
               * @since 6.0.0
               * @product highcharts
               * @apioption plotOptions.treemap.levels.colorVariation
               */
  
              /**
               * The key of a color variation. Currently supports `brightness` only.
               *
               * @type {String}
               * @validvalue ["brightness"]
               * @since 6.0.0
               * @product highcharts
               * @apioption plotOptions.treemap.levels.colorVariation.key
               */
  
              /**
               * The ending value of a color variation. The last sibling will receive this
               * value.
               *
               * @type {Number}
               * @since 6.0.0
               * @product highcharts
               * @apioption plotOptions.treemap.levels.colorVariation.to
               */
  
              /**
               * Can set the options of dataLabels on each point which lies on the
               * level. [plotOptions.treemap.dataLabels](#plotOptions.treemap.dataLabels)
               * for possible values.
               *
               * @type {Object}
               * @default undefined
               * @since 4.1.0
               * @product highcharts
               * @apioption plotOptions.treemap.levels.dataLabels
               */
  
              /**
               * Can set the layoutAlgorithm option on a specific level.
               *
               * @validvalue ["sliceAndDice", "stripes", "squarified", "strip"]
               * @type {String}
               * @since 4.1.0
               * @product highcharts
               * @apioption plotOptions.treemap.levels.layoutAlgorithm
               */
  
              /**
               * Can set the layoutStartingDirection option on a specific level.
               *
               * @validvalue ["vertical", "horizontal"]
               * @type {String}
               * @since 4.1.0
               * @product highcharts
               * @apioption plotOptions.treemap.levels.layoutStartingDirection
               */
  
              /**
               * Decides which level takes effect from the options set in the levels
               * object.
               *
               * @type {Number}
               * @sample {highcharts} highcharts/plotoptions/treemap-levels/
               *         Styling of both levels
               * @since 4.1.0
               * @product highcharts
               * @apioption plotOptions.treemap.levels.level
               */
  
              // Prototype members
          }, {
              pointArrayMap: ['value'],
              axisTypes: seriesTypes.heatmap ? ['xAxis', 'yAxis', 'colorAxis'] : ['xAxis', 'yAxis'],
              directTouch: true,
              optionalAxis: 'colorAxis',
              getSymbol: noop,
              parallelArrays: ['x', 'y', 'value', 'colorValue'],
              colorKey: 'colorValue', // Point color option key
              translateColors: (
                  seriesTypes.heatmap &&
                  seriesTypes.heatmap.prototype.translateColors
              ),
              colorAttribs: (
                  seriesTypes.heatmap &&
                  seriesTypes.heatmap.prototype.colorAttribs
              ),
              trackerGroups: ['group', 'dataLabelsGroup'],
              /**
               * Creates an object map from parent id to childrens index.
               * @param {Array} data List of points set in options.
               * @param {string} data[].parent Parent id of point.
               * @param {Array} ids List of all point ids.
               * @return {Object} Map from parent id to children index in data.
               */
              getListOfParents: function (data, ids) {
                  var listOfParents = reduce(data || [], function (prev, curr, i) {
                      var parent = pick(curr.parent, '');
                      if (prev[parent] === undefined) {
                          prev[parent] = [];
                      }
                      prev[parent].push(i);
                      return prev;
                  }, {});
  
                  // If parent does not exist, hoist parent to root of tree.
                  eachObject(listOfParents, function (children, parent, list) {
                      if ((parent !== '') && (H.inArray(parent, ids) === -1)) {
                          each(children, function (child) {
                              list[''].push(child);
                          });
                          delete list[parent];
                      }
                  });
                  return listOfParents;
              },
              /**
               * Creates a tree structured object from the series points
               */
              getTree: function () {
                  var series = this,
                      allIds = map(this.data, function (d) {
                          return d.id;
                      }),
                      parentList = series.getListOfParents(this.data, allIds);
  
                  series.nodeMap = [];
                  return series.buildNode('', -1, 0, parentList, null);
              },
              init: function (chart, options) {
                  var series = this;
                  Series.prototype.init.call(series, chart, options);
                  if (series.options.allowDrillToNode) {
                      H.addEvent(series, 'click', series.onClickDrillToNode);
                  }
              },
              buildNode: function (id, i, level, list, parent) {
                  var series = this,
                      children = [],
                      point = series.points[i],
                      height = 0,
                      node,
                      child;
  
                  // Actions
                  each((list[id] || []), function (i) {
                      child = series.buildNode(series.points[i].id, i, (level + 1), list, id);
                      height = Math.max(child.height + 1, height);
                      children.push(child);
                  });
                  node = {
                      id: id,
                      i: i,
                      children: children,
                      height: height,
                      level: level,
                      parent: parent,
                      visible: false // @todo move this to better location
                  };
                  series.nodeMap[node.id] = node;
                  if (point) {
                      point.node = node;
                  }
                  return node;
              },
              setTreeValues: function (tree) {
                  var series = this,
                      options = series.options,
                      childrenTotal = 0,
                      children = [],
                      val,
                      point = series.points[tree.i];
  
                  // First give the children some values
                  each(tree.children, function (child) {
                      child = series.setTreeValues(child);
                      children.push(child);
                      if (!child.ignore) {
                          childrenTotal += child.val;
                      }
                  });
                  // Sort the children
                  stableSort(children, function (a, b) {
                      return a.sortIndex - b.sortIndex;
                  });
                  // Set the values
                  val = pick(point && point.options.value, childrenTotal);
                  if (point) {
                      point.value = val;
                  }
                  extend(tree, {
                      children: children,
                      childrenTotal: childrenTotal,
                      // Ignore this node if point is not visible
                      ignore: !(pick(point && point.visible, true) && (val > 0)),
                      isLeaf: tree.visible && !childrenTotal,
                      levelDynamic: tree.level - (options.levelIsConstant ? series.nodeMap[series.rootNode].level : 0),
                      name: pick(point && point.name, ''),
                      sortIndex: pick(point && point.sortIndex, -val),
                      val: val
                  });
                  return tree;
              },
              /**
               * Recursive function which calculates the area for all children of a node.
               * @param {Object} node The node which is parent to the children.
               * @param {Object} area The rectangular area of the parent.
               */
              calculateChildrenAreas: function (parent, area) {
                  var series = this,
                      options = series.options,
                      level = this.levelMap[parent.levelDynamic + 1],
                      algorithm = pick((series[level && level.layoutAlgorithm] && level.layoutAlgorithm), options.layoutAlgorithm),
                      alternate = options.alternateStartingDirection,
                      childrenValues = [],
                      children;
  
                  // Collect all children which should be included
                  children = grep(parent.children, function (n) {
                      return !n.ignore;
                  });
  
                  if (level && level.layoutStartingDirection) {
                      area.direction = level.layoutStartingDirection === 'vertical' ? 0 : 1;
                  }
                  childrenValues = series[algorithm](area, children);
                  each(children, function (child, index) {
                      var values = childrenValues[index];
                      child.values = merge(values, {
                          val: child.childrenTotal,
                          direction: (alternate ? 1 - area.direction : area.direction)
                      });
                      child.pointValues = merge(values, {
                          x: (values.x / series.axisRatio),
                          width: (values.width / series.axisRatio)
                      });
                      // If node has children, then call method recursively
                      if (child.children.length) {
                          series.calculateChildrenAreas(child, child.values);
                      }
                  });
              },
              setPointValues: function () {
                  var series = this,
                      xAxis = series.xAxis,
                      yAxis = series.yAxis;
                  each(series.points, function (point) {
                      var node = point.node,
                          values = node.pointValues,
                          x1,
                          x2,
                          y1,
                          y2,
                          crispCorr = 0;
  
  
                      // Points which is ignored, have no values.
                      if (values && node.visible) {
                          x1 = Math.round(xAxis.translate(values.x, 0, 0, 0, 1)) - crispCorr;
                          x2 = Math.round(xAxis.translate(values.x + values.width, 0, 0, 0, 1)) - crispCorr;
                          y1 = Math.round(yAxis.translate(values.y, 0, 0, 0, 1)) - crispCorr;
                          y2 = Math.round(yAxis.translate(values.y + values.height, 0, 0, 0, 1)) - crispCorr;
                          // Set point values
                          point.shapeType = 'rect';
                          point.shapeArgs = {
                              x: Math.min(x1, x2),
                              y: Math.min(y1, y2),
                              width: Math.abs(x2 - x1),
                              height: Math.abs(y2 - y1)
                          };
                          point.plotX = point.shapeArgs.x + (point.shapeArgs.width / 2);
                          point.plotY = point.shapeArgs.y + (point.shapeArgs.height / 2);
                      } else {
                          // Reset visibility
                          delete point.plotX;
                          delete point.plotY;
                      }
                  });
              },
  
              /**
               * Set the node's color recursively, from the parent down.
               */
              setColorRecursive: function (node, parentColor, colorIndex, index, siblings) {
                  var series = this,
                      chart = series && series.chart,
                      colors = chart && chart.options && chart.options.colors,
                      colorInfo,
                      point;
  
                  if (node) {
                      colorInfo = getColor(node, {
                          colors: colors,
                          index: index,
                          levelMap: series.levelMap,
                          parentColor: parentColor,
                          parentColorIndex: colorIndex,
                          series: series,
                          siblings: siblings
                      });
  
                      point = series.points[node.i];
                      if (point) {
                          point.color = colorInfo.color;
                          point.colorIndex = colorInfo.colorIndex;
                      }
  
                      // Do it all again with the children
                      each(node.children || [], function (child, i) {
                          series.setColorRecursive(
                              child,
                              colorInfo.color,
                              colorInfo.colorIndex,
                              i,
                              node.children.length
                          );
                      });
                  }
              },
              algorithmGroup: function (h, w, d, p) {
                  this.height = h;
                  this.width = w;
                  this.plot = p;
                  this.direction = d;
                  this.startDirection = d;
                  this.total = 0;
                  this.nW = 0;
                  this.lW = 0;
                  this.nH = 0;
                  this.lH = 0;
                  this.elArr = [];
                  this.lP = {
                      total: 0,
                      lH: 0,
                      nH: 0,
                      lW: 0,
                      nW: 0,
                      nR: 0,
                      lR: 0,
                      aspectRatio: function (w, h) {
                          return Math.max((w / h), (h / w));
                      }
                  };
                  this.addElement = function (el) {
                      this.lP.total = this.elArr[this.elArr.length - 1];
                      this.total = this.total + el;
                      if (this.direction === 0) {
                          // Calculate last point old aspect ratio
                          this.lW = this.nW;
                          this.lP.lH = this.lP.total / this.lW;
                          this.lP.lR = this.lP.aspectRatio(this.lW, this.lP.lH);
                          // Calculate last point new aspect ratio
                          this.nW = this.total / this.height;
                          this.lP.nH = this.lP.total / this.nW;
                          this.lP.nR = this.lP.aspectRatio(this.nW, this.lP.nH);
                      } else {
                          // Calculate last point old aspect ratio
                          this.lH = this.nH;
                          this.lP.lW = this.lP.total / this.lH;
                          this.lP.lR = this.lP.aspectRatio(this.lP.lW, this.lH);
                          // Calculate last point new aspect ratio
                          this.nH = this.total / this.width;
                          this.lP.nW = this.lP.total / this.nH;
                          this.lP.nR = this.lP.aspectRatio(this.lP.nW, this.nH);
                      }
                      this.elArr.push(el);
                  };
                  this.reset = function () {
                      this.nW = 0;
                      this.lW = 0;
                      this.elArr = [];
                      this.total = 0;
                  };
              },
              algorithmCalcPoints: function (directionChange, last, group, childrenArea) {
                  var pX,
                      pY,
                      pW,
                      pH,
                      gW = group.lW,
                      gH = group.lH,
                      plot = group.plot,
                      keep,
                      i = 0,
                      end = group.elArr.length - 1;
                  if (last) {
                      gW = group.nW;
                      gH = group.nH;
                  } else {
                      keep = group.elArr[group.elArr.length - 1];
                  }
                  each(group.elArr, function (p) {
                      if (last || (i < end)) {
                          if (group.direction === 0) {
                              pX = plot.x;
                              pY = plot.y;
                              pW = gW;
                              pH = p / pW;
                          } else {
                              pX = plot.x;
                              pY = plot.y;
                              pH = gH;
                              pW = p / pH;
                          }
                          childrenArea.push({
                              x: pX,
                              y: pY,
                              width: pW,
                              height: pH
                          });
                          if (group.direction === 0) {
                              plot.y = plot.y + pH;
                          } else {
                              plot.x = plot.x + pW;
                          }
                      }
                      i = i + 1;
                  });
                  // Reset variables
                  group.reset();
                  if (group.direction === 0) {
                      group.width = group.width - gW;
                  } else {
                      group.height = group.height - gH;
                  }
                  plot.y = plot.parent.y + (plot.parent.height - group.height);
                  plot.x = plot.parent.x + (plot.parent.width - group.width);
                  if (directionChange) {
                      group.direction = 1 - group.direction;
                  }
                  // If not last, then add uncalculated element
                  if (!last) {
                      group.addElement(keep);
                  }
              },
              algorithmLowAspectRatio: function (directionChange, parent, children) {
                  var childrenArea = [],
                      series = this,
                      pTot,
                      plot = {
                          x: parent.x,
                          y: parent.y,
                          parent: parent
                      },
                      direction = parent.direction,
                      i = 0,
                      end = children.length - 1,
                      group = new this.algorithmGroup(parent.height, parent.width, direction, plot); // eslint-disable-line new-cap
                  // Loop through and calculate all areas
                  each(children, function (child) {
                      pTot = (parent.width * parent.height) * (child.val / parent.val);
                      group.addElement(pTot);
                      if (group.lP.nR > group.lP.lR) {
                          series.algorithmCalcPoints(directionChange, false, group, childrenArea, plot);
                      }
                      // If last child, then calculate all remaining areas
                      if (i === end) {
                          series.algorithmCalcPoints(directionChange, true, group, childrenArea, plot);
                      }
                      i = i + 1;
                  });
                  return childrenArea;
              },
              algorithmFill: function (directionChange, parent, children) {
                  var childrenArea = [],
                      pTot,
                      direction = parent.direction,
                      x = parent.x,
                      y = parent.y,
                      width = parent.width,
                      height = parent.height,
                      pX,
                      pY,
                      pW,
                      pH;
                  each(children, function (child) {
                      pTot = (parent.width * parent.height) * (child.val / parent.val);
                      pX = x;
                      pY = y;
                      if (direction === 0) {
                          pH = height;
                          pW = pTot / pH;
                          width = width - pW;
                          x = x + pW;
                      } else {
                          pW = width;
                          pH = pTot / pW;
                          height = height - pH;
                          y = y + pH;
                      }
                      childrenArea.push({
                          x: pX,
                          y: pY,
                          width: pW,
                          height: pH
                      });
                      if (directionChange) {
                          direction = 1 - direction;
                      }
                  });
                  return childrenArea;
              },
              strip: function (parent, children) {
                  return this.algorithmLowAspectRatio(false, parent, children);
              },
              squarified: function (parent, children) {
                  return this.algorithmLowAspectRatio(true, parent, children);
              },
              sliceAndDice: function (parent, children) {
                  return this.algorithmFill(true, parent, children);
              },
              stripes: function (parent, children) {
                  return this.algorithmFill(false, parent, children);
              },
              translate: function () {
                  var series = this,
                      rootId = series.rootNode = pick(series.rootNode, series.options.rootId, ''),
                      rootNode,
                      pointValues,
                      seriesArea,
                      tree,
                      val;
  
                  // Call prototype function
                  Series.prototype.translate.call(series);
                  // Create a object map from level to options
                  series.levelMap = reduce(series.options.levels || [],
                      function (arr, item) {
                          arr[item.level] = item;
                          return arr;
                      }, {});
                  tree = series.tree = series.getTree(); // @todo Only if series.isDirtyData is true
                  rootNode = series.nodeMap[rootId];
                  if (
                      rootId !== '' &&
                      (!rootNode || !rootNode.children.length)
                  ) {
                      series.drillToNode('', false);
                      rootId = series.rootNode;
                      rootNode = series.nodeMap[rootId];
                  }
                  // Parents of the root node is by default visible
                  recursive(series.nodeMap[series.rootNode], function (node) {
                      var next = false,
                          p = node.parent;
                      node.visible = true;
                      if (p || p === '') {
                          next = series.nodeMap[p];
                      }
                      return next;
                  });
                  // Children of the root node is by default visible
                  recursive(series.nodeMap[series.rootNode].children, function (children) {
                      var next = false;
                      each(children, function (child) {
                          child.visible = true;
                          if (child.children.length) {
                              next = (next || []).concat(child.children);
                          }
                      });
                      return next;
                  });
                  series.setTreeValues(tree);
  
                  // Calculate plotting values.
                  series.axisRatio = (series.xAxis.len / series.yAxis.len);
                  series.nodeMap[''].pointValues = pointValues = {
                      x: 0,
                      y: 0,
                      width: 100,
                      height: 100
                  };
                  series.nodeMap[''].values = seriesArea = merge(pointValues, {
                      width: (pointValues.width * series.axisRatio),
                      direction: (series.options.layoutStartingDirection === 'vertical' ? 0 : 1),
                      val: tree.val
                  });
                  series.calculateChildrenAreas(tree, seriesArea);
  
                  // Logic for point colors
                  if (series.colorAxis) {
                      series.translateColors();
                  } else if (!series.options.colorByPoint) {
                      series.setColorRecursive(series.tree);
                  }
  
                  // Update axis extremes according to the root node.
                  if (series.options.allowDrillToNode) {
                      val = rootNode.pointValues;
                      series.xAxis.setExtremes(val.x, val.x + val.width, false);
                      series.yAxis.setExtremes(val.y, val.y + val.height, false);
                      series.xAxis.setScale();
                      series.yAxis.setScale();
                  }
  
                  // Assign values to points.
                  series.setPointValues();
              },
              /**
               * Extend drawDataLabels with logic to handle custom options related to the treemap series:
               * - Points which is not a leaf node, has dataLabels disabled by default.
               * - Options set on series.levels is merged in.
               * - Width of the dataLabel is set to match the width of the point shape.
               */
              drawDataLabels: function () {
                  var series = this,
                      points = grep(series.points, function (n) {
                          return n.node.visible;
                      }),
                      options,
                      level;
                  each(points, function (point) {
                      level = series.levelMap[point.node.levelDynamic];
                      // Set options to new object to avoid problems with scope
                      options = {
                          style: {}
                      };
  
                      // If not a leaf, then label should be disabled as default
                      if (!point.node.isLeaf) {
                          options.enabled = false;
                      }
  
                      // If options for level exists, include them as well
                      if (level && level.dataLabels) {
                          options = merge(options, level.dataLabels);
                          series._hasPointLabels = true;
                      }
  
                      // Set dataLabel width to the width of the point shape.
                      if (point.shapeArgs) {
                          options.style.width = point.shapeArgs.width;
                          if (point.dataLabel) {
                              point.dataLabel.css({
                                  width: point.shapeArgs.width + 'px'
                              });
                          }
                      }
  
                      // Merge custom options with point options
                      point.dlOptions = merge(options, point.options.dataLabels);
                  });
                  Series.prototype.drawDataLabels.call(this);
              },
  
              /**
               * Over the alignment method by setting z index
               */
              alignDataLabel: function (point) {
                  seriesTypes.column.prototype.alignDataLabel.apply(this, arguments);
                  if (point.dataLabel) {
                      // point.node.zIndex could be undefined (#6956)
                      point.dataLabel.attr({
                          zIndex: (point.node.zIndex || 0) + 1
                      });
                  }
              },
  
  
              /**
               * Extending ColumnSeries drawPoints
               */
              drawPoints: function () {
                  var series = this,
                      points = grep(series.points, function (n) {
                          return n.node.visible;
                      });
  
                  each(points, function (point) {
                      var groupKey = 'level-group-' + point.node.levelDynamic;
                      if (!series[groupKey]) {
                          series[groupKey] = series.chart.renderer.g(groupKey)
                              .attr({
                                  zIndex: 1000 - point.node.levelDynamic // @todo Set the zIndex based upon the number of levels, instead of using 1000
                              })
                              .add(series.group);
                      }
                      point.group = series[groupKey];
  
                  });
                  // Call standard drawPoints
                  seriesTypes.column.prototype.drawPoints.call(this);
  
  
                  // In styled mode apply point.color. Use CSS, otherwise the fill
                  // used in the style sheet will take precedence over the fill
                  // attribute.
                  if (this.colorAttribs) { // Heatmap is loaded
                      each(this.points, function (point) {
                          point.graphic.css(this.colorAttribs(point));
                      }, this);
                  }
  
  
                  // If drillToNode is allowed, set a point cursor on clickables & add drillId to point 
                  if (series.options.allowDrillToNode) {
                      each(points, function (point) {
                          if (point.graphic) {
                              point.drillId = series.options.interactByLeaf ? series.drillToByLeaf(point) : series.drillToByGroup(point);
                          }
                      });
                  }
              },
              /**
               * Add drilling on the suitable points
               */
              onClickDrillToNode: function (event) {
                  var series = this,
                      point = event.point,
                      drillId = point && point.drillId;
                  // If a drill id is returned, add click event and cursor. 
                  if (isString(drillId)) {
                      point.setState(''); // Remove hover
                      series.drillToNode(drillId);
                  }
              },
              /**
               * Finds the drill id for a parent node.
               * Returns false if point should not have a click event
               * @param {Object} point
               * @return {String|Boolean} Drill to id or false when point should not have a click event
               */
              drillToByGroup: function (point) {
                  var series = this,
                      drillId = false;
                  if ((point.node.level - series.nodeMap[series.rootNode].level) === 1 && !point.node.isLeaf) {
                      drillId = point.id;
                  }
                  return drillId;
              },
              /**
               * Finds the drill id for a leaf node.
               * Returns false if point should not have a click event
               * @param {Object} point
               * @return {String|Boolean} Drill to id or false when point should not have a click event
               */
              drillToByLeaf: function (point) {
                  var series = this,
                      drillId = false,
                      nodeParent;
                  if ((point.node.parent !== series.rootNode) && (point.node.isLeaf)) {
                      nodeParent = point.node;
                      while (!drillId) {
                          nodeParent = series.nodeMap[nodeParent.parent];
                          if (nodeParent.parent === series.rootNode) {
                              drillId = nodeParent.id;
                          }
                      }
                  }
                  return drillId;
              },
              drillUp: function () {
                  var series = this,
                      node = series.nodeMap[series.rootNode];
                  if (node && isString(node.parent)) {
                      series.drillToNode(node.parent);
                  }
              },
              drillToNode: function (id, redraw) {
                  var series = this,
                      nodeMap = series.nodeMap,
                      node = nodeMap[id];
                  series.idPreviousRoot = series.rootNode;
                  series.rootNode = id;
                  if (id === '') {
                      series.drillUpButton = series.drillUpButton.destroy();
                  } else {
                      series.showDrillUpButton((node && node.name || id));
                  }
                  this.isDirty = true; // Force redraw
                  if (pick(redraw, true)) {
                      this.chart.redraw();
                  }
              },
              showDrillUpButton: function (name) {
                  var series = this,
                      backText = (name || '< Back'),
                      buttonOptions = series.options.drillUpButton,
                      attr,
                      states;
  
                  if (buttonOptions.text) {
                      backText = buttonOptions.text;
                  }
                  if (!this.drillUpButton) {
                      attr = buttonOptions.theme;
                      states = attr && attr.states;
  
                      this.drillUpButton = this.chart.renderer.button(
                          backText,
                          null,
                          null,
                          function () {
                              series.drillUp();
                          },
                          attr,
                          states && states.hover,
                          states && states.select
                      )
                          .attr({
                              align: buttonOptions.position.align,
                              zIndex: 7
                          })
                          .add()
                          .align(buttonOptions.position, false, buttonOptions.relativeTo || 'plotBox');
                  } else {
                      this.drillUpButton.attr({
                          text: backText
                      })
                          .align();
                  }
              },
              buildKDTree: noop,
              drawLegendSymbol: H.LegendSymbolMixin.drawRectangle,
              getExtremes: function () {
                  // Get the extremes from the value data
                  Series.prototype.getExtremes.call(this, this.colorValueData);
                  this.valueMin = this.dataMin;
                  this.valueMax = this.dataMax;
  
                  // Get the extremes from the y data
                  Series.prototype.getExtremes.call(this);
              },
              getExtremesFromAll: true,
              bindAxes: function () {
                  var treeAxis = {
                      endOnTick: false,
                      gridLineWidth: 0,
                      lineWidth: 0,
                      min: 0,
                      dataMin: 0,
                      minPadding: 0,
                      max: 100,
                      dataMax: 100,
                      maxPadding: 0,
                      startOnTick: false,
                      title: null,
                      tickPositions: []
                  };
                  Series.prototype.bindAxes.call(this);
                  H.extend(this.yAxis.options, treeAxis);
                  H.extend(this.xAxis.options, treeAxis);
              },
              utils: {
                  recursive: recursive,
                  reduce: reduce
              }
  
              // Point class
          }, {
              getClassName: function () {
                  var className = H.Point.prototype.getClassName.call(this),
                      series = this.series,
                      options = series.options;
  
                  // Above the current level
                  if (this.node.level <= series.nodeMap[series.rootNode].level) {
                      className += ' highcharts-above-level';
  
                  } else if (!this.node.isLeaf && !pick(options.interactByLeaf, !options.allowDrillToNode)) {
                      className += ' highcharts-internal-node-interactive';
  
                  } else if (!this.node.isLeaf) {
                      className += ' highcharts-internal-node';
                  }
                  return className;
              },
  
              /**
               * A tree point is valid if it has han id too, assume it may be a parent
               * item.
               */
              isValid: function () {
                  return this.id || isNumber(this.value);
              },
              setState: function (state) {
                  H.Point.prototype.setState.call(this, state);
  
                  // Graphic does not exist when point is not visible.
                  if (this.graphic) {
                      this.graphic.attr({
                          zIndex: state === 'hover' ? 1 : 0
                      });
                  }
              },
              setVisible: seriesTypes.pie.prototype.pointClass.prototype.setVisible
          });
  
  
          /**
           * A `treemap` series. If the [type](#series.treemap.type) option is
           * not specified, it is inherited from [chart.type](#chart.type).
           *
           * For options that apply to multiple series, it is recommended to add
           * them to the [plotOptions.series](#plotOptions.series) options structure.
           * To apply to all series of this specific type, apply it to [plotOptions.
           * treemap](#plotOptions.treemap).
           *
           * @type {Object}
           * @extends series,plotOptions.treemap
           * @excluding dataParser,dataURL,stack
           * @product highcharts
           * @apioption series.treemap
           */
  
          /**
           * An array of data points for the series. For the `treemap` series
           * type, points can be given in the following ways:
           *
           * 1.  An array of numerical values. In this case, the numerical values
           * will be interpreted as `value` options. Example:
           *
           *  ```js
           *  data: [0, 5, 3, 5]
           *  ```
           *
           * 2.  An array of objects with named values. The objects are point
           * configuration objects as seen below. If the total number of data
           * points exceeds the series' [turboThreshold](#series.treemap.turboThreshold),
           * this option is not available.
           *
           *  ```js
           *     data: [{
           *         value: 9,
           *         name: "Point2",
           *         color: "#00FF00"
           *     }, {
           *         value: 6,
           *         name: "Point1",
           *         color: "#FF00FF"
           *     }]
           *  ```
           *
           * @type {Array<Object|Number>}
           * @extends series.heatmap.data
           * @excluding x,y
           * @sample {highcharts} highcharts/chart/reflow-true/ Numerical values
           * @sample {highcharts} highcharts/series/data-array-of-arrays/ Arrays of numeric x and y
           * @sample {highcharts} highcharts/series/data-array-of-arrays-datetime/ Arrays of datetime x and y
           * @sample {highcharts} highcharts/series/data-array-of-name-value/ Arrays of point.name and y
           * @sample {highcharts} highcharts/series/data-array-of-objects/ Config objects
           * @product highcharts
           * @apioption series.treemap.data
           */
  
          /**
           * The value of the point, resulting in a relative area of the point
           * in the treemap.
           *
           * @type {Number}
           * @product highcharts
           * @apioption series.treemap.data.value
           */
  
          /**
           * Serves a purpose only if a `colorAxis` object is defined in the chart
           * options. This value will decide which color the point gets from the
           * scale of the colorAxis.
           *
           * @type {Number}
           * @default undefined
           * @since 4.1.0
           * @product highcharts
           * @apioption series.treemap.data.colorValue
           */
  
          /**
           * Only for treemap. Use this option to build a tree structure. The
           * value should be the id of the point which is the parent. If no points
           * has a matching id, or this option is undefined, then the parent will
           * be set to the root.
           *
           * @type {String}
           * @sample {highcharts} highcharts/point/parent/ Point parent
           * @sample {highcharts} highcharts/demo/treemap-with-levels/ Example where parent id is not matching
           * @default undefined
           * @since 4.1.0
           * @product highcharts
           * @apioption series.treemap.data.parent
           */
  
      }(Highcharts, result));
      (function (H, drawPoint, mixinTreeSeries) {
          /**
           * (c) 2016 Highsoft AS
           * Authors: Jon Arild Nygard
           *
           * License: www.highcharts.com/license
           *
           * This is an experimental Highcharts module which enables visualization
           * of a word cloud.
           */
          var CenteredSeriesMixin = H.CenteredSeriesMixin,
              Series = H.Series,
              each = H.each,
              extend = H.extend,
              getCenter = CenteredSeriesMixin.getCenter,
              getColor = mixinTreeSeries.getColor,
              getStartAndEndRadians = CenteredSeriesMixin.getStartAndEndRadians,
              grep = H.grep,
              isBoolean = function (x) {
                  return typeof x === 'boolean';
              },
              isNumber = H.isNumber,
              isObject = H.isObject,
              isString = H.isString,
              merge = H.merge,
              noop = H.noop,
              pick = H.pick,
              rad2deg = 180 / Math.PI,
              seriesType = H.seriesType,
              seriesTypes = H.seriesTypes,
              setTreeValues = mixinTreeSeries.setTreeValues,
              reduce = H.reduce;
  
          var layoutAlgorithm = function layoutAlgorithm(parent, children) {
              var startAngle = parent.start,
                  range = parent.end - startAngle,
                  total = parent.val,
                  x = parent.x,
                  y = parent.y,
                  innerRadius = parent.r,
                  outerRadius = innerRadius + parent.radius;
  
              return reduce(children || [], function (arr, child) {
                  var percentage = (1 / total) * child.val,
                      radians = percentage * range,
                      values = {
                          x: x,
                          y: y,
                          innerR: innerRadius,
                          r: outerRadius,
                          radius: parent.radius,
                          start: startAngle,
                          end: startAngle + radians
                      };
                  arr.push(values);
                  startAngle = values.end;
                  return arr;
              }, []);
          };
  
          /**
           * getEndPoint - Find a set of coordinates given a start coordinates, an angle,
           *     and a distance.
           *
           * @param  {number} x Start coordinate x
           * @param  {number} y Start coordinate y
           * @param  {number} angle Angle in radians
           * @param  {number} distance Distance from start to end coordinates
           * @return {object} Returns the end coordinates, x and y.
           */
          var getEndPoint = function getEndPoint(x, y, angle, distance) {
              return {
                  x: x + (Math.cos(angle) * distance),
                  y: y + (Math.sin(angle) * distance)
              };
          };
  
          var getDlOptions = function getDlOptions(params) {
              // Set options to new object to avoid problems with scope
              var shape = isObject(params.shapeArgs) ? params.shapeArgs : {},
                  optionsSeries = (
                      isObject(params.optionsSeries) ?
                          params.optionsSeries.dataLabels : {}
                  ),
                  optionsPoint = (
                      isObject(params.optionsPoint) ?
                          params.optionsPoint.dataLabels : {}
                  ),
                  optionsLevel = (
                      isObject(params.level) ?
                          params.level.dataLabels : {}
                  ),
                  options = merge({
                      rotationMode: 'perpendicular',
                      style: {
                          width: shape.radius
                      }
                  }, optionsSeries, optionsLevel, optionsPoint),
                  rotationRad,
                  rotation;
              if (!isNumber(options.rotation)) {
                  rotationRad = (shape.end - (shape.end - shape.start) / 2);
                  rotation = (rotationRad * rad2deg) % 180;
                  if (options.rotationMode === 'parallel') {
                      rotation -= 90;
                  }
                  // Data labels should not rotate beyond 90 degrees, for readability.
                  if (rotation > 90) {
                      rotation -= 180;
                  }
                  options.rotation = rotation;
              }
              // NOTE: alignDataLabel positions the data label differntly when rotation is
              // 0. Avoiding this by setting rotation to a small number.
              if (options.rotation === 0) {
                  options.rotation = 0.001;
              }
              return options;
          };
  
          var getAnimation = function getAnimation(shape, params) {
              var to = {
                      end: shape.end,
                      start: shape.start,
                      innerR: shape.innerR,
                      r: shape.r
                  },
                  from = {},
                  point = params.point,
                  radians = params.radians,
                  innerR = params.innerR,
                  idRoot = params.idRoot,
                  idPreviousRoot = params.idPreviousRoot,
                  shapeExisting = params.shapeExisting,
                  shapeRoot = params.shapeRoot,
                  shapePreviousRoot = params.shapePreviousRoot,
                  visible = params.visible;
              if (visible) {
                  // Animate points in
                  if (!point.graphic && shapePreviousRoot) {
                      if (idRoot === point.id) {
                          from = {
                              start: radians.start,
                              end: radians.end
                          };
                      } else {
                          from = (shapePreviousRoot.end <= shape.start) ? {
                              start: radians.end,
                              end: radians.end
                          } : {
                              start: radians.start,
                              end: radians.start
                          };
                      }
                      // Animate from center and outwards.
                      from.innerR = from.r = innerR;
                  }
              } else {
                  // Animate points out
                  if (point.graphic) {
                      if (idPreviousRoot === point.id) {
                          to = {
                              innerR: innerR,
                              r: innerR
                          };
                      } else if (shapeRoot) {
                          to = (shapeRoot.end <= shapeExisting.start) ? {
                              innerR: innerR,
                              r: innerR,
                              start: radians.end,
                              end: radians.end
                          } : {
                              innerR: innerR,
                              r: innerR,
                              start: radians.start,
                              end: radians.start
                          };
                      }
                  }
              }
              return {
                  from: from,
                  to: to
              };
          };
  
          var setShapeArgs = function setShapeArgs(parent, parentValues) {
              var childrenValues = [],
              // Collect all children which should be included
                  children = grep(parent.children, function (n) {
                      return n.visible;
                  });
              childrenValues = layoutAlgorithm(parentValues, children);
              each(children, function (child, index) {
                  var values = childrenValues[index],
                      angle = values.start + ((values.end - values.start) / 2),
                      radius = values.innerR + ((values.r - values.innerR) / 2),
                      isCircle = (
                          values.innerR === 0 &&
                          (values.end - values.start) > 6.28
                      ),
                      center = (
                          isCircle ? {
                              x: values.x,
                              y: values.y
                          } :
                              getEndPoint(values.x, values.y, angle, radius)
                      ),
                      val = (
                          child.val ?
                              (
                                  child.childrenTotal > child.val ?
                                      child.childrenTotal :
                                      child.val
                              ) :
                              child.childrenTotal
                      );
                  child.shapeArgs = merge(values, {
                      plotX: center.x,
                      plotY: center.y
                  });
                  child.values = merge(values, {
                      val: val
                  });
                  // If node has children, then call method recursively
                  if (child.children.length) {
                      setShapeArgs(child, child.values);
                  }
              });
          };
  
          var getDrillId = function getDrillId(point, idRoot, mapIdToNode) {
              var drillId,
                  node = point.node,
                  nodeRoot;
              if (!node.isLeaf) {
                  // When it is the root node, the drillId should be set to parent.
                  if (idRoot === point.id) {
                      nodeRoot = mapIdToNode[idRoot];
                      drillId = nodeRoot.parent;
                  } else {
                      drillId = point.id;
                  }
              }
              return drillId;
          };
  
          var cbSetTreeValuesBefore = function before(node, options) {
              var mapIdToNode = options.mapIdToNode,
                  nodeParent = mapIdToNode[node.parent],
                  series = options.series,
                  chart = series.chart,
                  points = series.points,
                  point = points[node.i],
                  colorInfo = getColor(node, {
                      colors: chart && chart.options && chart.options.colors,
                      colorIndex: series.colorIndex,
                      colorByPoint: series.colorByPoint,
                      index: options.index,
                      levelMap: options.levelMap,
                      parentColor: nodeParent && nodeParent.color,
                      parentColorIndex: nodeParent && nodeParent.colorIndex,
                      series: options.series,
                      siblings: options.siblings
                  });
              node.color = colorInfo.color;
              node.colorIndex = colorInfo.colorIndex;
              if (point) {
                  point.color = node.color;
                  point.colorIndex = node.colorIndex;
              }
              return node;
          };
  
          /**
           * A Sunburst displays hierarchical data, where a level in the hierarchy is represented by a circle.
           * The center represents the root node of the tree.
           * The visualization bears a resemblance to both treemap and pie charts.
           *
           * @extends {plotOptions.pie}
           * @sample highcharts/demo/sunburst Sunburst chart
           * @excluding allAreas, center, clip, colorAxis, compare, compareBase,
           *            dataGrouping, depth, endAngle, gapSize, gapUnit,
           *            ignoreHiddenPoint, innerSize, joinBy, legendType, linecap,
           *            minSize, navigatorOptions, pointRange, slicedOffset
           * @product highcharts
           * @optionparent plotOptions.sunburst
           */
          var sunburstOptions = {
              /**
               * The center of the sunburst chart relative to the plot area. Can be
               * percentages or pixel values.
               *
               * @type {Array<String|Number>}
               * @sample {highcharts} highcharts/plotoptions/pie-center/ Centered at 100, 100
               * @product highcharts
               */
              center: ['50%', '50%'],
              /**
               * @extends plotOptions.series.dataLabels
               * @excluding align,allowOverlap,staggerLines,step
               */
              dataLabels: {
                  defer: true,
                  style: {
                      textOverflow: 'ellipsis'
                  },
                  /**
                   * Decides how the data label will be rotated according to the perimeter
                   * of the sunburst. It can either be parallel or perpendicular to the
                   * perimeter.
                   * `series.rotation` takes precedence over `rotationMode`.
                   * @since 6.0.0
                   * @validvalue ["perpendicular", "parallel"]
                   */
                  rotationMode: 'perpendicular'
              },
              /**
               * Which point to use as a root in the visualization.
               *
               * @type {String|undefined}
               * @default undefined
               */
              rootId: undefined,
  
              /**
               * Used together with the levels and `allowDrillToNode` options. When
               * set to false the first level visible when drilling is considered
               * to be level one. Otherwise the level will be the same as the tree
               * structure.
               */
              levelIsConstant: true
              /**
               * Set options on specific levels. Takes precedence over series options,
               * but not point options.
               *
               * @type {Array<Object>}
               * @sample highcharts/demo/sunburst Sunburst chart
               * @apioption plotOptions.sunburst.levels
               */
              /**
               * Can set a `borderColor` on all points which lies on the same level.
               *
               * @type {String}
               * @apioption plotOptions.sunburst.levels.borderColor
               */
              /**
               * Can set a `borderWidth` on all points which lies on the same level.
               *
               * @type {String}
               * @apioption plotOptions.sunburst.levels.borderWidth
               */
              /**
               * Can set a `borderDashStyle` on all points which lies on the same level.
               *
               * @type {String}
               * @apioption plotOptions.sunburst.levels.borderDashStyle
               */
              /**
               * Can set a `color` on all points which lies on the same level.
               *
               * @type {String}
               * @apioption plotOptions.sunburst.levels.color
               */
              /**
               * Can set a `colorVariation` on all points which lies on the same level.
               *
               * @type {Object}
               * @apioption plotOptions.sunburst.levels.colorVariation
               */
              /**
               * The key of a color variation. Currently supports `brightness` only.
               *
               * @type {String}
               * @apioption plotOptions.sunburst.levels.colorVariation.key
               */
              /**
               * The ending value of a color variation. The last sibling will receive this
               * value.
               *
               * @type {String}
               * @apioption plotOptions.sunburst.levels.colorVariation.to
               */
              /**
               * Can set a `dataLabels` on all points which lies on the same level.
               *
               * @type {Object}
               * @apioption plotOptions.sunburst.levels.dataLabels
               */
              /**
               * Can set a `rotation` on all points which lies on the same level.
               *
               * @type {Number}
               * @apioption plotOptions.sunburst.levels.rotation
               */
              /**
               * Can set a `rotationMode` on all points which lies on the same level.
               *
               * @type {String}
               * @apioption plotOptions.sunburst.levels.rotationMode
               */
              /**
               * When enabled the user can click on a point which is a parent and
               * zoom in on its children.
               *
               * @sample highcharts/demo/sunburst
               *         Allow drill to node
               * @type {Boolean}
               * @default false
               * @apioption plotOptions.sunburst.allowDrillToNode
               */
          };
  
          /**
           * Properties of the Sunburst series.
           */
          var sunburstSeries = {
              drawDataLabels: noop, // drawDataLabels is called in drawPoints
              drawPoints: function drawPoints() {
                  var series = this,
                      levelMap = series.levelMap,
                      shapeRoot = series.shapeRoot,
                      group = series.group,
                      hasRendered = series.hasRendered,
                      idRoot = series.rootNode,
                      idPreviousRoot = series.idPreviousRoot,
                      nodeMap = series.nodeMap,
                      nodePreviousRoot = nodeMap[idPreviousRoot],
                      shapePreviousRoot = nodePreviousRoot && nodePreviousRoot.shapeArgs,
                      points = series.points,
                      radians = series.startAndEndRadians,
                      chart = series.chart,
                      optionsChart = chart && chart.options && chart.options.chart || {},
                      animation = (
                          isBoolean(optionsChart.animation) ?
                              optionsChart.animation :
                              true
                      ),
                      positions = series.center,
                      innerR = positions[3] / 2,
                      renderer = series.chart.renderer,
                      animateLabels,
                      addedHack = false,
                      hackDataLabelAnimation = !!(
                          animation &&
                          hasRendered &&
                          idRoot !== idPreviousRoot &&
                          series.dataLabelsGroup
                      );
  
                  if (hackDataLabelAnimation) {
                      series.dataLabelsGroup.attr({
                          opacity: 0
                      });
                      animateLabels = function () {
                          var s = series;
                          if (s.dataLabelsGroup) {
                              s.dataLabelsGroup.animate({
                                  opacity: 1,
                                  visibility: 'visible'
                              });
                          }
                      };
                  }
                  each(points, function (point) {
                      var node = point.node,
                          level = levelMap[node.levelDynamic],
                          shapeExisting = point.shapeExisting || {},
                          shape = node.shapeArgs || {},
                          attrStyle = series.pointAttribs(point, point.selected && 'select'),
                          animationInfo,
                          onComplete,
                          visible = !!(node.visible && node.shapeArgs);
                      if (hasRendered && animation) {
                          animationInfo = getAnimation(shape, {
                              point: point,
                              radians: radians,
                              innerR: innerR,
                              idRoot: idRoot,
                              idPreviousRoot: idPreviousRoot,
                              shapeExisting: shapeExisting,
                              shapeRoot: shapeRoot,
                              shapePreviousRoot: shapePreviousRoot,
                              visible: visible
                          });
                      } else {
                          // When animation is disabled, attr is called from animation.
                          animationInfo = {
                              to: shape,
                              from: {}
                          };
                      }
                      extend(point, {
                          shapeExisting: shape, // Store for use in animation
                          tooltipPos: [shape.plotX, shape.plotY],
                          drillId: getDrillId(point, idRoot, nodeMap),
                          name: '' + (point.name || point.id || point.index),
                          plotX: shape.plotX, // used for data label position
                          plotY: shape.plotY, // used for data label position
                          value: node.val,
                          isNull: !visible // used for dataLabels & point.draw
                      });
                      point.dlOptions = getDlOptions({
                          level: level,
                          optionsPoint: point.options,
                          optionsSeries: series.options,
                          shapeArgs: shape
                      });
                      if (!addedHack && visible) {
                          addedHack = true;
                          onComplete = animateLabels;
                      }
                      point.draw({
                          animate: animationInfo.to,
                          attr: extend(animationInfo.from, attrStyle),
                          onComplete: onComplete,
                          group: group,
                          renderer: renderer,
                          shapeType: 'arc',
                          shapeArgs: shape
                      });
                  });
                  // Draw data labels after points
                  // TODO draw labels one by one to avoid addtional looping
                  if (hackDataLabelAnimation && addedHack) {
                      series.hasRendered = false;
                      series.options.dataLabels.defer = true;
                      Series.prototype.drawDataLabels.call(series);
                      series.hasRendered = true;
                  } else {
                      Series.prototype.drawDataLabels.call(series);
                  }
              },
              pointAttribs: seriesTypes.column.prototype.pointAttribs,
              translate: function translate() {
                  var series = this,
                      options = series.options,
                      positions = series.center = getCenter.call(series),
                      radians = series.startAndEndRadians = getStartAndEndRadians(options.startAngle, options.endAngle),
                      innerRadius = positions[3] / 2,
                      outerRadius = positions[2] / 2,
                      idRoot = series.rootNode = pick(series.rootNode, options.rootId, ''),
                      mapIdToNode = series.nodeMap,
                      idTop,
                      nodeRoot = mapIdToNode && mapIdToNode[idRoot],
                      nodeTop,
                      radiusPerLevel,
                      tree,
                      height,
                      values;
                  series.shapeRoot = nodeRoot && nodeRoot.shapeArgs;
                  // Call prototype function
                  Series.prototype.translate.call(series);
                  // Create a object map from level to options
                  series.levelMap = reduce(series.options.levels || [],
                      function (arr, item) {
                          arr[item.level] = item;
                          return arr;
                      }, {});
                  // @todo Only if series.isDirtyData is true
                  tree = series.tree = series.getTree();
                  mapIdToNode = series.nodeMap;
                  nodeRoot = mapIdToNode[idRoot];
                  idTop = isString(nodeRoot.parent) ? nodeRoot.parent : '';
                  nodeTop = mapIdToNode[idTop];
                  // TODO Try to combine setTreeValues & setColorRecursive to avoid
                  //  unnecessary looping.
                  setTreeValues(tree, {
                      before: cbSetTreeValuesBefore,
                      idRoot: idRoot,
                      levelIsConstant: options.levelIsConstant,
                      levelMap: series.levelMap,
                      mapIdToNode: mapIdToNode,
                      points: series.points,
                      series: series
                  });
                  height = (idRoot === idTop) ? nodeRoot.height : nodeRoot.height + 1;
                  radiusPerLevel = (outerRadius - innerRadius) / height;
                  values = mapIdToNode[''].shapeArgs = {
                      end: radians.end,
                      r: innerRadius,
                      radius: radiusPerLevel,
                      start: radians.start,
                      val: nodeTop.val,
                      x: positions[0],
                      y: positions[1]
                  };
                  setShapeArgs(nodeTop, values);
              },
  
              /**
               * Animate the slices in. Similar to the animation of polar charts.
               */
              animate: function (init) {
                  var chart = this.chart,
                      center = [
                          chart.plotWidth / 2,
                          chart.plotHeight / 2
                      ],
                      plotLeft = chart.plotLeft,
                      plotTop = chart.plotTop,
                      attribs,
                      group = this.group;
  
                  // Initialize the animation
                  if (init) {
  
                      // Scale down the group and place it in the center
                      attribs = {
                          translateX: center[0] + plotLeft,
                          translateY: center[1] + plotTop,
                          scaleX: 0.001, // #1499
                          scaleY: 0.001,
                          rotation: 10,
                          opacity: 0.01
                      };
  
                      group.attr(attribs);
  
                      // Run the animation
                  } else {
                      attribs = {
                          translateX: plotLeft,
                          translateY: plotTop,
                          scaleX: 1,
                          scaleY: 1,
                          rotation: 0,
                          opacity: 1
                      };
                      group.animate(attribs, this.options.animation);
  
                      // Delete this function to allow it only once
                      this.animate = null;
                  }
              }
          };
  
          /**
           * Properties of the Sunburst series.
           */
          var sunburstPoint = {
              draw: drawPoint,
              shouldDraw: function shouldDraw() {
                  var point = this;
                  return !point.isNull;
              }
          };
  
          /**
           * A `sunburst` series. If the [type](#series.sunburst.type) option is
           * not specified, it is inherited from [chart.type](#chart.type).
           *
           * For options that apply to multiple series, it is recommended to add
           * them to the [plotOptions.series](#plotOptions.series) options structure.
           * To apply to all series of this specific type, apply it to [plotOptions.
           * sunburst](#plotOptions.sunburst).
           *
           * @type {Object}
           * @extends plotOptions.sunburst
           * @excluding dataParser,dataURL,stack
           * @product highcharts
           * @apioption series.sunburst
           */
  
          /**
           * @type {Array<Object|Number>}
           * @extends series.treemap.data
           * @excluding x,y
           * @product highcharts
           * @apioption series.sunburst.data
           */
  
          /**
           * The value of the point, resulting in a relative area of the point
           * in the sunburst.
           *
           * @type {Number}
           * @default undefined
           * @since 6.0.0
           * @product highcharts
           * @apioption series.sunburst.data.value
           */
  
          /**
           * Use this option to build a tree structure. The value should be the id of the
           * point which is the parent. If no points has a matching id, or this option is
           * undefined, then the parent will be set to the root.
           *
           * @type {String|undefined}
           * @default undefined
           * @since 6.0.0
           * @product highcharts
           * @apioption series.treemap.data.parent
           */
          seriesType(
              'sunburst',
              'treemap',
              sunburstOptions,
              sunburstSeries,
              sunburstPoint
          );
  
      }(Highcharts, draw, result));
  }));
  