text: /**
   * @license Highcharts JS v7.1.1 (2019-04-09)
   *
   * (c) 2016-2019 Highsoft AS
   * Authors: Jon Arild Nygard
   *
   * License: www.highcharts.com/license
   */
  'use strict';
  (function (factory) {
      if (typeof module === 'object' && module.exports) {
          factory['default'] = factory;
          module.exports = factory;
      } else if (typeof define === 'function' && define.amd) {
          define('highcharts/modules/sunburst', ['highcharts'], function (Highcharts) {
              factory(Highcharts);
              factory.Highcharts = Highcharts;
              return factory;
          });
      } else {
          factory(typeof Highcharts !== 'undefined' ? Highcharts : undefined);
      }
  }(function (Highcharts) {
      var _modules = Highcharts ? Highcharts._modules : {};
      function _registerModule(obj, path, args, fn) {
          if (!obj.hasOwnProperty(path)) {
              obj[path] = fn.apply(null, args);
          }
      }
      _registerModule(_modules, 'mixins/draw-point.js', [], function () {
          var isFn = function (x) {
              return typeof x === 'function';
          };
  
          /**
           * Handles the drawing of a component.
           * Can be used for any type of component that reserves the graphic property, and
           * provides a shouldDraw on its context.
           *
           * @private
           * @function draw
           *
           * @param {object} params
           *        Parameters.
           *
           * TODO: add type checking.
           * TODO: export this function to enable usage
           */
          var draw = function draw(params) {
              var component = this,
                  graphic = component.graphic,
                  animatableAttribs = params.animatableAttribs,
                  onComplete = params.onComplete,
                  css = params.css,
                  renderer = params.renderer;
  
              if (component.shouldDraw()) {
                  if (!graphic) {
                      component.graphic = graphic =
                          renderer[params.shapeType](params.shapeArgs).add(params.group);
                  }
                  graphic
                      .css(css)
                      .attr(params.attribs)
                      .animate(
                          animatableAttribs,
                          params.isNew ? false : undefined,
                          onComplete
                      );
              } else if (graphic) {
                  var destroy = function () {
                      component.graphic = graphic = graphic.destroy();
                      if (isFn(onComplete)) {
                          onComplete();
                      }
                  };
  
                  // animate only runs complete callback if something was animated.
                  if (Object.keys(animatableAttribs).length) {
                      graphic.animate(animatableAttribs, undefined, function () {
                          destroy();
                      });
                  } else {
                      destroy();
                  }
              }
          };
  
          /**
           * An extended version of draw customized for points.
           * It calls additional methods that is expected when rendering a point.
           *
           * @param {object} params Parameters
           */
          var drawPoint = function drawPoint(params) {
              var point = this,
                  attribs = params.attribs = params.attribs || {};
  
              // Assigning class in dot notation does go well in IE8
              // eslint-disable-next-line dot-notation
              attribs['class'] = point.getClassName();
  
              // Call draw to render component
              draw.call(point, params);
          };
  
  
          return drawPoint;
      });
      _registerModule(_modules, 'mixins/tree-series.js', [_modules['parts/Globals.js']], function (H) {
  
          var extend = H.extend,
              isArray = H.isArray,
              isBoolean = function (x) {
                  return typeof x === 'boolean';
              },
              isFn = function (x) {
                  return typeof x === 'function';
              },
              isObject = H.isObject,
              isNumber = H.isNumber,
              merge = H.merge,
              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
              tree.children.forEach(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,
                  mapOptionsToLevel = options.mapOptionsToLevel,
                  parentColor = options.parentColor,
                  parentColorIndex = options.parentColorIndex,
                  series = options.series,
                  colors = options.colors,
                  siblings = options.siblings,
                  points = series.points,
                  getColorByPoint,
                  chartOptionsChart = series.chart.options.chart,
                  point,
                  level,
                  colorByPoint,
                  colorIndexByPoint,
                  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 = mapOptionsToLevel[node.level] || {};
                  getColorByPoint = point && level.colorByPoint;
  
                  if (getColorByPoint) {
                      colorIndexByPoint = point.index % (colors ?
                          colors.length :
                          chartOptionsChart.colorCount
                      );
                      colorByPoint = colors && colors[colorIndexByPoint];
                  }
  
                  // Select either point color, level color or inherited color.
                  if (!series.chart.styledMode) {
                      color = pick(
                          point && point.options.color,
                          level && level.color,
                          colorByPoint,
                          parentColor && variation(parentColor),
                          series.color
                      );
                  }
  
                  colorIndex = pick(
                      point && point.options.colorIndex,
                      level && level.colorIndex,
                      colorIndexByPoint,
                      parentColorIndex,
                      options.colorIndex
                  );
              }
              return {
                  color: color,
                  colorIndex: colorIndex
              };
          };
  
          /**
           * Creates a map from level number to its given options.
           *
           * @private
           * @function getLevelOptions
           *
           * @param {object} params
           *        Object containing parameters.
           *        - `defaults` Object containing default options. The default options
           *           are merged with the userOptions to get the final options for a
           *           specific level.
           *        - `from` The lowest level number.
           *        - `levels` User options from series.levels.
           *        - `to` The highest level number.
           *
           * @return {Highcharts.Dictionary<object>}
           *         Returns a map from level number to its given options.
           */
          var getLevelOptions = function getLevelOptions(params) {
              var result = null,
                  defaults,
                  converted,
                  i,
                  from,
                  to,
                  levels;
  
              if (isObject(params)) {
                  result = {};
                  from = isNumber(params.from) ? params.from : 1;
                  levels = params.levels;
                  converted = {};
                  defaults = isObject(params.defaults) ? params.defaults : {};
                  if (isArray(levels)) {
                      converted = levels.reduce(function (obj, item) {
                          var level,
                              levelIsConstant,
                              options;
  
                          if (isObject(item) && isNumber(item.level)) {
                              options = merge({}, item);
                              levelIsConstant = (
                                  isBoolean(options.levelIsConstant) ?
                                      options.levelIsConstant :
                                      defaults.levelIsConstant
                              );
                              // Delete redundant properties.
                              delete options.levelIsConstant;
                              delete options.level;
                              // Calculate which level these options apply to.
                              level = item.level + (levelIsConstant ? 0 : from - 1);
                              if (isObject(obj[level])) {
                                  extend(obj[level], options);
                              } else {
                                  obj[level] = options;
                              }
                          }
                          return obj;
                      }, {});
                  }
                  to = isNumber(params.to) ? params.to : 1;
                  for (i = 0; i <= to; i++) {
                      result[i] = merge(
                          {},
                          defaults,
                          isObject(converted[i]) ? converted[i] : {}
                      );
                  }
              }
              return result;
          };
  
          /**
           * Update the rootId property on the series. Also makes sure that it is
           * accessible to exporting.
           *
           * @private
           * @function updateRootId
           *
           * @param {object} series
           *        The series to operate on.
           *
           * @return {string}
           *         Returns the resulting rootId after update.
           */
          var updateRootId = function (series) {
              var rootId,
                  options;
  
              if (isObject(series)) {
                  // Get the series options.
                  options = isObject(series.options) ? series.options : {};
  
                  // Calculate the rootId.
                  rootId = pick(series.rootNode, options.rootId, '');
  
                  // Set rootId on series.userOptions to pick it up in exporting.
                  if (isObject(series.userOptions)) {
                      series.userOptions.rootId = rootId;
                  }
                  // Set rootId on series to pick it up on next update.
                  series.rootNode = rootId;
              }
              return rootId;
          };
  
          var result = {
              getColor: getColor,
              getLevelOptions: getLevelOptions,
              setTreeValues: setTreeValues,
              updateRootId: updateRootId
          };
  
  
          return result;
      });
      _registerModule(_modules, 'modules/treemap.src.js', [_modules['parts/Globals.js'], _modules['mixins/tree-series.js'], _modules['mixins/draw-point.js']], function (H, mixinTreeSeries, drawPoint) {
          /* *
           * (c) 2014-2019 Highsoft AS
           *
           * Authors: Jon Arild Nygard / Oystein Moseng
           *
           * License: www.highcharts.com/license
           */
  
  
  
          var seriesType = H.seriesType,
              seriesTypes = H.seriesTypes,
              addEvent = H.addEvent,
              merge = H.merge,
              extend = H.extend,
              error = H.error,
              defined = H.defined,
              noop = H.noop,
              fireEvent = H.fireEvent,
              getColor = mixinTreeSeries.getColor,
              getLevelOptions = mixinTreeSeries.getLevelOptions,
              isArray = H.isArray,
              isBoolean = function (x) {
                  return typeof x === 'boolean';
              },
              isNumber = H.isNumber,
              isObject = H.isObject,
              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);
                  });
              },
              // @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);
                  }
              },
              updateRootId = mixinTreeSeries.updateRootId;
  
          /**
           * @private
           * @class
           * @name Highcharts.seriesTypes.treemap
           *
           * @augments Highcharts.Series
           */
          seriesType(
              'treemap',
              'scatter'
  
              /**
               * 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, jitter
               * @product      highcharts
               * @optionparent plotOptions.treemap
               */
              , {
  
                  /**
                   * When enabled the user can click on a point which is a parent and
                   * zoom in on its children. Deprecated and replaced by
                   * [allowTraversingTree](#plotOptions.treemap.allowTraversingTree).
                   *
                   * @sample {highcharts} highcharts/plotoptions/treemap-allowdrilltonode/
                   *         Enabled
                   *
                   * @deprecated
                   * @type      {boolean}
                   * @default   false
                   * @since     4.1.0
                   * @product   highcharts
                   * @apioption plotOptions.treemap.allowDrillToNode
                   */
  
                  /**
                   * When enabled the user can click on a point which is a parent and
                   * zoom in on its children.
                   *
                   * @sample {highcharts} highcharts/plotoptions/treemap-allowtraversingtree/
                   *         Enabled
                   *
                   * @since     7.0.3
                   * @product   highcharts
                   */
                  allowTraversingTree: false,
  
                  animationLimit: 250,
                  /**
                   * 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
                   */
  
                  /**
                   * Fires on a request for change of root node for the tree, before the
                   * update is made. An event object is passed to the function, containing
                   * additional properties `newRootId`, `previousRootId`, `redraw` and
                   * `trigger`.
                   *
                   * @type {function}
                   * @default undefined
                   * @sample {highcharts} highcharts/plotoptions/treemap-events-setrootnode/
                   *         Alert update information on setRootNode event.
                   * @since 7.0.3
                   * @product highcharts
                   * @apioption plotOptions.treemap.events.setRootNode
                   */
  
                  /**
                   * 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 allowTraversingTree is true, then it
                   * will be false by default.
                   *
                   * @sample {highcharts} highcharts/plotoptions/treemap-interactbyleaf-false/
                   *         False
                   * @sample {highcharts} highcharts/plotoptions/treemap-interactbyleaf-true-and-allowtraversingtree/
                   *         InteractByLeaf and allowTraversingTree is true
                   *
                   * @type      {boolean}
                   * @since     4.1.2
                   * @product   highcharts
                   * @apioption plotOptions.treemap.interactByLeaf
                   */
  
                  /**
                   * The sort index of the point inside the treemap level.
                   *
                   * @sample {highcharts} highcharts/plotoptions/treemap-sortindex/
                   *         Sort by years
                   *
                   * @type      {number}
                   * @since     4.1.10
                   * @product   highcharts
                   * @apioption plotOptions.treemap.sortIndex
                   */
  
                  /**
                   * When using automatic point colors pulled from the `options.colors`
                   * collection, this option determines whether the chart should receive
                   * one color per series or one color per point.
                   *
                   * @see [series colors](#plotOptions.treemap.colors)
                   *
                   * @type      {boolean}
                   * @default   false
                   * @since     2.0
                   * @product   highcharts
                   * @apioption plotOptions.treemap.colorByPoint
                   */
  
                  /**
                   * A series specific or series type specific color set to apply instead
                   * of the global [colors](#colors) when
                   * [colorByPoint](#plotOptions.treemap.colorByPoint) is true.
                   *
                   * @type      {Array<Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject>}
                   * @since     3.0
                   * @product   highcharts
                   * @apioption plotOptions.treemap.colors
                   */
  
                  /**
                   * Whether to display this series type or specific series item in the
                   * legend.
                   */
                  showInLegend: false,
  
                  /**
                   * @ignore-option
                   */
                  marker: false,
  
                  colorByPoint: false,
  
                  /**
                   * @since 4.1.0
                   */
                  dataLabels: {
                      /** @ignore-option */
                      defer: false,
                      /** @ignore-option */
                      enabled: true,
                      /** @ignore-option */
                      formatter: function () {
                          var point = this && this.point ? this.point : {},
                              name = isString(point.name) ? point.name : '';
  
                          return name;
                      },
                      /** @ignore-option */
                      inside: true,
                      /** @ignore-option */
                      verticalAlign: 'middle'
                  },
  
                  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.
                   *
                   * @since 5.0.8
                   */
                  ignoreHiddenPoint: true,
  
                  /**
                   * This option decides which algorithm is used for setting position
                   * and dimensions of the points.
                   *
                   * @see [How to write your own algorithm](https://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
                   *
                   * @since      4.1.0
                   * @validvalue ["sliceAndDice", "stripes", "squarified", "strip"]
                   */
                  layoutAlgorithm: 'sliceAndDice',
  
                  /**
                   * Defines which direction the layout algorithm will start drawing.
                   *
                   * @since       4.1.0
                   * @validvalue ["vertical", "horizontal"]
                   */
                  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.
                   *
                   * @sample {highcharts} highcharts/plotoptions/treemap-alternatestartingdirection-true/
                   *         Enabled
                   *
                   * @since 4.1.0
                   */
                  alternateStartingDirection: false,
  
                  /**
                   * Used together with the levels and allowTraversingTree options. When
                   * set to false the first level visible to be level one, which is
                   * dynamic when traversing the tree. Otherwise the level will be the
                   * same as the tree structure.
                   *
                   * @since 4.1.0
                   */
                  levelIsConstant: true,
                  /**
                   * Options for the button appearing when drilling down in a treemap.
                   * Deprecated and replaced by
                   * [traverseUpButton](#plotOptions.treemap.traverseUpButton).
                   *
                   * @deprecated
                   */
                  drillUpButton: {
  
                      /**
                       * The position of the button.
                       *
                       * @deprecated
                       */
                      position: {
  
                          /**
                           * Vertical alignment of the button.
                           *
                           * @deprecated
                           * @type      {Highcharts.VerticalAlignValue}
                           * @default   top
                           * @product   highcharts
                           * @apioption plotOptions.treemap.drillUpButton.position.verticalAlign
                           */
  
                          /**
                           * Horizontal alignment of the button.
                           *
                           * @deprecated
                           * @type {Highcharts.AlignValue}
                           */
                          align: 'right',
  
                          /**
                           * Horizontal offset of the button.
                           *
                           * @deprecated
                           */
                          x: -10,
  
                          /**
                           * Vertical offset of the button.
                           *
                           * @deprecated
                           */
                          y: 10
                      }
                  },
  
                  /**
                   * Options for the button appearing when traversing down in a treemap.
                   */
                  traverseUpButton: {
  
                      /**
                       * The position of the button.
                       */
                      position: {
  
                          /**
                           * Vertical alignment of the button.
                           *
                           * @type      {Highcharts.VerticalAlignValue}
                           * @default   top
                           * @product   highcharts
                           * @apioption plotOptions.treemap.traverseUpButton.position.verticalAlign
                           */
  
                          /**
                           * Horizontal alignment of the button.
                           *
                           * @type {Highcharts.AlignValue}
                           */
                          align: 'right',
  
                          /**
                           * Horizontal offset of the button.
                           */
                          x: -10,
  
                          /**
                           * Vertical offset of the button.
                           */
                          y: 10
                      }
                  },
  
  
                  /**
                   * Set options on specific levels. Takes precedence over series options,
                   * but not point options.
                   *
                   * @sample {highcharts} highcharts/plotoptions/treemap-levels/
                   *         Styling dataLabels and borders
                   * @sample {highcharts} highcharts/demo/treemap-with-levels/
                   *         Different layoutAlgorithm
                   *
                   * @type      {Array<*>}
                   * @since     4.1.0
                   * @product   highcharts
                   * @apioption plotOptions.treemap.levels
                   */
  
                  /**
                   * Can set a `borderColor` on all points which lies on the same level.
                   *
                   * @type      {Highcharts.ColorString}
                   * @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      {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
                   * @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.
                   *
                   * @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}
                   * @since      6.0.0
                   * @product    highcharts
                   * @validvalue ["brightness"]
                   * @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}
                   * @since     4.1.0
                   * @product   highcharts
                   * @apioption plotOptions.treemap.levels.dataLabels
                   */
  
                  /**
                   * Can set the layoutAlgorithm option on a specific level.
                   *
                   * @type       {string}
                   * @since      4.1.0
                   * @product    highcharts
                   * @validvalue ["sliceAndDice", "stripes", "squarified", "strip"]
                   * @apioption  plotOptions.treemap.levels.layoutAlgorithm
                   */
  
                  /**
                   * Can set the layoutStartingDirection option on a specific level.
                   *
                   * @type       {string}
                   * @since      4.1.0
                   * @product    highcharts
                   * @validvalue ["vertical", "horizontal"]
                   * @apioption  plotOptions.treemap.levels.layoutStartingDirection
                   */
  
                  /**
                   * Decides which level takes effect from the options set in the levels
                   * object.
                   *
                   * @sample {highcharts} highcharts/plotoptions/treemap-levels/
                   *         Styling of both levels
                   *
                   * @type      {number}
                   * @since     4.1.0
                   * @product   highcharts
                   * @apioption plotOptions.treemap.levels.level
                   */
  
  
                  // Presentational options
  
                  /**
                   * The color of the border surrounding each tree map item.
                   *
                   * @type {Highcharts.ColorString}
                   */
                  borderColor: '#e6e6e6',
  
                  /**
                   * The width of the border surrounding each tree map item.
                   */
                  borderWidth: 1,
  
                  /**
                   * The opacity of a point in treemap. When a point has children, the
                   * visibility of the children is determined by the opacity.
                   *
                   * @since 4.2.4
                   */
                  opacity: 0.15,
  
                  /**
                   * A wrapper object for all the series options in specific states.
                   *
                   * @extends plotOptions.heatmap.states
                   */
                  states: {
  
                      /**
                       * Options for the hovered series
                       *
                       * @extends   plotOptions.heatmap.states.hover
                       * @excluding halo
                       */
                      hover: {
  
                          /**
                           * The border color for the hovered state.
                           */
                          borderColor: '#999999',
  
                          /**
                           * Brightness for the hovered point. Defaults to 0 if the
                           * heatmap series is loaded first, otherwise 0.1.
                           *
                           * @type    {number}
                           * @default undefined
                           */
                          brightness: seriesTypes.heatmap ? 0 : 0.1,
  
                          /**
                           * @extends plotOptions.heatmap.states.hover.halo
                           */
                          halo: false,
  
                          /**
                           * The opacity of a point in treemap. When a point has children,
                           * the visibility of the children is determined by the opacity.
                           *
                           * @since 4.2.4
                           */
                          opacity: 0.75,
  
                          /**
                           * The shadow option for hovered state.
                           */
                          shadow: false
                      }
                  }
  
  
                  // Prototype members
              }, {
                  pointArrayMap: ['value'],
                  directTouch: true,
                  optionalAxis: 'colorAxis',
                  getSymbol: noop,
                  parallelArrays: ['x', 'y', 'value', 'colorValue'],
                  colorKey: 'colorValue', // Point color option key
                  trackerGroups: ['group', 'dataLabelsGroup'],
                  /**
                   * Creates an object map from parent id to childrens index.
                   *
                   * @private
                   * @function Highcharts.Series#getListOfParents
                   *
                   * @param {Highcharts.SeriesTreemapDataOptions} data
                   *        List of points set in options.
                   *
                   * @param {Array<string>} existingIds
                   *        List of all point ids.
                   *
                   * @return {object}
                   *         Map from parent id to children index in data.
                   */
                  getListOfParents: function (data, existingIds) {
                      var arr = isArray(data) ? data : [],
                          ids = isArray(existingIds) ? existingIds : [],
                          listOfParents = arr.reduce(function (prev, curr, i) {
                              var parent = pick(curr.parent, '');
  
                              if (prev[parent] === undefined) {
                                  prev[parent] = [];
                              }
                              prev[parent].push(i);
                              return prev;
                          }, {
                              '': [] // Root of tree
                          });
  
                      // If parent does not exist, hoist parent to root of tree.
                      eachObject(listOfParents, function (children, parent, list) {
                          if ((parent !== '') && (ids.indexOf(parent) === -1)) {
                              children.forEach(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 = this.data.map(function (d) {
                              return d.id;
                          }),
                          parentList = series.getListOfParents(this.data, allIds);
  
                      series.nodeMap = [];
                      return series.buildNode('', -1, 0, parentList, null);
                  },
                  // Define hasData function for non-cartesian series.
                  // Returns true if the series has points at all.
                  hasData: function () {
                      return !!this.processedXData.length; // != 0
                  },
                  init: function (chart, options) {
                      var series = this,
                          colorSeriesMixin = H.colorSeriesMixin;
  
                      // If color series logic is loaded, add some properties
                      if (H.colorSeriesMixin) {
                          this.translateColors = colorSeriesMixin.translateColors;
                          this.colorAttribs = colorSeriesMixin.colorAttribs;
                          this.axisTypes = colorSeriesMixin.axisTypes;
                      }
  
                      // Handle deprecated options.
                      addEvent(series, 'setOptions', function (event) {
                          var options = event.userOptions;
  
                          if (
                              defined(options.allowDrillToNode) &&
                              !defined(options.allowTraversingTree)
                          ) {
                              options.allowTraversingTree = options.allowDrillToNode;
                              delete options.allowDrillToNode;
                          }
  
                          if (
                              defined(options.drillUpButton) &&
                              !defined(options.traverseUpButton)
                          ) {
                              options.traverseUpButton = options.drillUpButton;
                              delete options.drillUpButton;
                          }
                      });
  
                      Series.prototype.init.call(series, chart, options);
  
                      if (series.options.allowTraversingTree) {
                          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
                      ((list[id] || [])).forEach(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,
                          idRoot = series.rootNode,
                          mapIdToNode = series.nodeMap,
                          nodeRoot = mapIdToNode[idRoot],
                          levelIsConstant = (
                              isBoolean(options.levelIsConstant) ?
                                  options.levelIsConstant :
                                  true
                          ),
                          childrenTotal = 0,
                          children = [],
                          val,
                          point = series.points[tree.i];
  
                      // First give the children some values
                      tree.children.forEach(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 - (levelIsConstant ? 0 : nodeRoot.level)
                          ),
                          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.
                   *
                   * @private
                   * @function Highcharts.Series#calculateChildrenAreas
                   *
                   * @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,
                          mapOptionsToLevel = series.mapOptionsToLevel,
                          level = mapOptionsToLevel[parent.level + 1],
                          algorithm = pick(
                              (
                                  series[level &&
                              level.layoutAlgorithm] &&
                              level.layoutAlgorithm
                              ),
                              options.layoutAlgorithm
                          ),
                          alternate = options.alternateStartingDirection,
                          childrenValues = [],
                          children;
  
                      // Collect all children which should be included
                      children = parent.children.filter(function (n) {
                          return !n.ignore;
                      });
  
                      if (level && level.layoutStartingDirection) {
                          area.direction = level.layoutStartingDirection === 'vertical' ?
                              0 :
                              1;
                      }
                      childrenValues = series[algorithm](area, children);
                      children.forEach(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;
  
                      series.points.forEach(function (point) {
                          var node = point.node,
                              values = node.pointValues,
                              x1,
                              x2,
                              y1,
                              y2,
                              crispCorr = 0;
  
                          // Get the crisp correction in classic mode. For this to work in
                          // styled mode, we would need to first add the shape (without x,
                          // y, width and height), then read the rendered stroke width
                          // using point.graphic.strokeWidth(), then modify and apply the
                          // shapeArgs. This applies also to column series, but the
                          // downside is performance and code complexity.
                          if (!series.chart.styledMode) {
                              crispCorr = (
                                  (series.pointAttribs(point)['stroke-width'] || 0) % 2
                              ) / 2;
                          }
  
                          // 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.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,
                              mapOptionsToLevel: series.mapOptionsToLevel,
                              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
                          (node.children || []).forEach(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];
                      }
                      group.elArr.forEach(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: H.correctFloat(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( // eslint-disable-line new-cap
                              parent.height,
                              parent.width,
                              direction,
                              plot
                          );
  
                      // Loop through and calculate all areas
                      children.forEach(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;
  
                      children.forEach(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,
                          options = series.options,
                          // NOTE: updateRootId modifies series.
                          rootId = updateRootId(series),
                          rootNode,
                          pointValues,
                          seriesArea,
                          tree,
                          val;
  
                      // Call prototype function
                      Series.prototype.translate.call(series);
  
                      // @todo Only if series.isDirtyData is true
                      tree = series.tree = series.getTree();
                      rootNode = series.nodeMap[rootId];
                      series.renderTraverseUpButton(rootId);
                      series.mapOptionsToLevel = getLevelOptions({
                          from: rootNode.level + 1,
                          levels: options.levels,
                          to: tree.height,
                          defaults: {
                              levelIsConstant: series.options.levelIsConstant,
                              colorByPoint: options.colorByPoint
                          }
                      });
                      if (
                          rootId !== '' &&
                      (!rootNode || !rootNode.children.length)
                      ) {
                          series.setRootNode('', 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;
  
                              children.forEach(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: (
                              options.layoutStartingDirection === 'vertical' ? 0 : 1
                          ),
                          val: tree.val
                      });
                      series.calculateChildrenAreas(tree, seriesArea);
  
                      // Logic for point colors
                      if (series.colorAxis) {
                          series.translateColors();
                      } else if (!options.colorByPoint) {
                          series.setColorRecursive(series.tree);
                      }
  
                      // Update axis extremes according to the root node.
                      if (options.allowTraversingTree) {
                          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.
                   *
                   * @private
                   * @function Highcharts.Series#drawDataLabels
                   */
                  drawDataLabels: function () {
                      var series = this,
                          mapOptionsToLevel = series.mapOptionsToLevel,
                          points = series.points.filter(function (n) {
                              return n.node.visible;
                          }),
                          options,
                          level;
  
                      points.forEach(function (point) {
                          level = mapOptionsToLevel[point.node.level];
                          // 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, dataLabel, labelOptions) {
                      var style = labelOptions.style;
  
                      // #8160: Prevent the label from exceeding the point's
                      // boundaries in treemaps by applying ellipsis overflow.
                      // The issue was happening when datalabel's text contained a
                      // long sequence of characters without a whitespace.
                      if (
                          !H.defined(style.textOverflow) &&
                          dataLabel.text &&
                          dataLabel.getBBox().width > dataLabel.text.textWidth
                      ) {
                          dataLabel.css({
                              textOverflow: 'ellipsis',
                              // unit (px) is required when useHTML is true
                              width: style.width += 'px'
                          });
                      }
  
                      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 });
                      }
                  },
  
                  // Get presentational attributes
                  pointAttribs: function (point, state) {
                      var series = this,
                          mapOptionsToLevel = (
                              isObject(series.mapOptionsToLevel) ?
                                  series.mapOptionsToLevel :
                                  {}
                          ),
                          level = point && mapOptionsToLevel[point.node.level] || {},
                          options = this.options,
                          attr,
                          stateOptions = (state && options.states[state]) || {},
                          className = (point && point.getClassName()) || '',
                          opacity;
  
                      // Set attributes by precedence. Point trumps level trumps series.
                      // Stroke width uses pick because it can be 0.
                      attr = {
                          'stroke':
                          (point && point.borderColor) ||
                          level.borderColor ||
                          stateOptions.borderColor ||
                          options.borderColor,
                          'stroke-width': pick(
                              point && point.borderWidth,
                              level.borderWidth,
                              stateOptions.borderWidth,
                              options.borderWidth
                          ),
                          'dashstyle':
                          (point && point.borderDashStyle) ||
                          level.borderDashStyle ||
                          stateOptions.borderDashStyle ||
                          options.borderDashStyle,
                          'fill': (point && point.color) || this.color
                      };
  
                      // Hide levels above the current view
                      if (className.indexOf('highcharts-above-level') !== -1) {
                          attr.fill = 'none';
                          attr['stroke-width'] = 0;
  
                          // Nodes with children that accept interaction
                      } else if (
                          className.indexOf('highcharts-internal-node-interactive') !== -1
                      ) {
                          opacity = pick(stateOptions.opacity, options.opacity);
                          attr.fill = color(attr.fill).setOpacity(opacity).get();
                          attr.cursor = 'pointer';
                          // Hide nodes that have children
                      } else if (className.indexOf('highcharts-internal-node') !== -1) {
                          attr.fill = 'none';
  
                      } else if (state) {
                      // Brighten and hoist the hover nodes
                          attr.fill = color(attr.fill)
                              .brighten(stateOptions.brightness)
                              .get();
                      }
                      return attr;
                  },
  
                  // Override drawPoints
                  drawPoints: function () {
                      var series = this,
                          chart = series.chart,
                          renderer = chart.renderer,
                          points = series.points,
                          styledMode = chart.styledMode,
                          options = series.options,
                          shadow = styledMode ? {} : options.shadow,
                          borderRadius = options.borderRadius,
                          withinAnimationLimit =
                              chart.pointCount < options.animationLimit,
                          allowTraversingTree = options.allowTraversingTree;
  
                      points.forEach(function (point) {
                          var levelDynamic = point.node.levelDynamic,
                              animate = {},
                              attr = {},
                              css = {},
                              groupKey = 'level-group-' + levelDynamic,
                              hasGraphic = !!point.graphic,
                              shouldAnimate = withinAnimationLimit && hasGraphic,
                              shapeArgs = point.shapeArgs;
  
                          // Don't bother with calculate styling if the point is not drawn
                          if (point.shouldDraw()) {
                              if (borderRadius) {
                                  attr.r = borderRadius;
                              }
  
                              merge(
                                  true, // Extend object
                                  // Which object to extend
                                  shouldAnimate ? animate : attr,
                                  // Add shapeArgs to animate/attr if graphic exists
                                  hasGraphic ? shapeArgs : {},
                                  // Add style attribs if !styleMode
                                  styledMode ?
                                      {} :
                                      series.pointAttribs(
                                          point, point.selected && 'select'
                                      )
                              );
  
                              // In styled mode apply point.color. Use CSS, otherwise the
                              // fill used in the style sheet will take precedence over
                              // the fill attribute.
                              if (series.colorAttribs && styledMode) {
                                  // Heatmap is loaded
                                  extend(css, series.colorAttribs(point));
                              }
  
                              if (!series[groupKey]) {
                                  series[groupKey] = renderer.g(groupKey)
                                      .attr({
                                          // @todo Set the zIndex based upon the number of
                                          // levels, instead of using 1000
                                          zIndex: 1000 - levelDynamic
                                      })
                                      .add(series.group);
                              }
                          }
  
                          // Draw the point
                          point.draw({
                              animatableAttribs: animate,
                              attribs: attr,
                              css: css,
                              group: series[groupKey],
                              renderer: renderer,
                              shadow: shadow,
                              shapeArgs: shapeArgs,
                              shapeType: 'rect'
                          });
  
                          // If setRootNode is allowed, set a point cursor on clickables &
                          // add drillId to point
                          if (allowTraversingTree && point.graphic) {
                              point.drillId = 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.setRootNode(drillId, true, { trigger: 'click' });
                      }
                  },
                  /**
                   * Finds the drill id for a parent node. Returns false if point should
                   * not have a click event.
                   *
                   * @private
                   * @function Highcharts.Series#drillToByGroup
                   *
                   * @param {object} point
                   *
                   * @return {boolean|string}
                   *         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
                   *
                   * @private
                   * @function Highcharts.Series#drillToByLeaf
                   *
                   * @param {object} point
                   *
                   * @return {boolean|string}
                   *         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.setRootNode(
                              node.parent,
                              true,
                              { trigger: 'traverseUpButton' }
                          );
                      }
                  },
                  // TODO remove this function at a suitable version.
                  drillToNode: function (id, redraw) {
                      error(
                          'WARNING: treemap.drillToNode has been renamed to treemap.' +
                          'setRootNode, and will be removed in the next major version.'
                      );
                      this.setRootNode(id, redraw);
                  },
                  /**
                   * Sets a new root node for the series.
                   *
                   * @private
                   * @function Highcharts.Series#setRootNode
                   *
                   * @param {string} id The id of the new root node.
                   * @param {boolean} [redraw=true] Wether to redraw the chart or not.
                   * @param {object} [eventArguments] Arguments to be accessed in
                   * event handler.
                   * @param {string} [eventArguments.newRootId] Id of the new root.
                   * @param {string} [eventArguments.previousRootId] Id of the previous
                   * root.
                   * @param {boolean} [eventArguments.redraw] Wether to redraw the
                   * chart after.
                   * @param {object} [eventArguments.series] The series to update the root
                   * of.
                   * @param {string} [eventArguments.trigger] The action which
                   * triggered the event. Undefined if the setRootNode is called
                   * directly.
                   */
                  setRootNode: function (id, redraw, eventArguments) {
                      var series = this,
                          eventArgs = extend({
                              newRootId: id,
                              previousRootId: series.rootNode,
                              redraw: pick(redraw, true),
                              series: series
                          }, eventArguments);
  
                      /**
                       * The default functionality of the setRootNode event.
                       *
                       * @private
                       * @param {object} args The event arguments.
                       * @param {string} args.newRootId Id of the new root.
                       * @param {string} args.previousRootId Id of the previous root.
                       * @param {boolean} args.redraw Wether to redraw the chart after.
                       * @param {object} args.series The series to update the root of.
                       * @param {string} [args.trigger=undefined] The action which
                       * triggered the event. Undefined if the setRootNode is called
                       * directly.
                       */
                      var defaultFn = function (args) {
                          var series = args.series;
  
                          // Store previous and new root ids on the series.
                          series.idPreviousRoot = args.previousRootId;
                          series.rootNode = args.newRootId;
  
                          // Redraw the chart
                          series.isDirty = true; // Force redraw
                          if (args.redraw) {
                              series.chart.redraw();
                          }
                      };
  
                      // Fire setRootNode event.
                      fireEvent(series, 'setRootNode', eventArgs, defaultFn);
                  },
                  renderTraverseUpButton: function (rootId) {
                      var series = this,
                          nodeMap = series.nodeMap,
                          node = nodeMap[rootId],
                          name = node.name,
                          buttonOptions = series.options.traverseUpButton,
                          backText = pick(buttonOptions.text, name, '< Back'),
                          attr,
                          states;
  
                      if (rootId === '') {
                          if (series.drillUpButton) {
                              series.drillUpButton = series.drillUpButton.destroy();
                          }
                      } else 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
                          )
                              .addClass('highcharts-drillup-button')
                              .attr({
                                  align: buttonOptions.position.align,
                                  zIndex: 7
                              })
                              .add()
                              .align(
                                  buttonOptions.position,
                                  false,
                                  buttonOptions.relativeTo || 'plotBox'
                              );
                      } else {
                          this.drillUpButton.placed = false;
                          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);
                  },
  
                  /**
                  * Workaround for `inactive` state. Since `series.opacity` option is
                  * already reserved, don't use that state at all by disabling
                  * `inactiveOtherPoints` and not inheriting states by points.
                  *
                  * @private
                  */
                  setState: function (state) {
                      this.options.inactiveOtherPoints = true;
                      Series.prototype.setState.call(this, state, false);
                      this.options.inactiveOtherPoints = false;
                  },
                  utils: {
                      recursive: recursive
                  }
  
                  // Point class
              }, {
                  draw: drawPoint,
                  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.allowTraversingTree)
                      ) {
                          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.
                   *
                   * @private
                   * @function Highcharts.Point#isValid
                   */
                  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,
                  shouldDraw: function () {
                      var point = this;
                      return isNumber(point.plotY) && point.y !== null;
                  }
              }
          );
  
  
          /**
           * A `treemap` series. If the [type](#series.treemap.type) option is
           * not specified, it is inherited from [chart.type](#chart.type).
           *
           * @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 following snippet shows only a
           *    few settings, see the complete options set 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"
           *     }]
           *  ```
           *
           * @sample {highcharts} highcharts/chart/reflow-true/
           *         Numerical values
           * @sample {highcharts} highcharts/series/data-array-of-objects/
           *         Config objects
           *
           * @type      {Array<number|null|*>}
           * @extends   series.heatmap.data
           * @excluding x, y
           * @product   highcharts
           * @apioption series.treemap.data
           */
  
          /**
           * The value of the point, resulting in a relative area of the point
           * in the treemap.
           *
           * @type      {number|null}
           * @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}
           * @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.
           *
           * @sample {highcharts} highcharts/point/parent/
           *         Point parent
           * @sample {highcharts} highcharts/demo/treemap-with-levels/
           *         Example where parent id is not matching
           *
           * @type      {string}
           * @since     4.1.0
           * @product   highcharts
           * @apioption series.treemap.data.parent
           */
  
      });
      _registerModule(_modules, 'modules/sunburst.src.js', [_modules['parts/Globals.js'], _modules['mixins/draw-point.js'], _modules['mixins/tree-series.js']], function (H, drawPoint, mixinTreeSeries) {
          /* *
           *
           *  This module implements sunburst charts in Highcharts.
           *
           *  (c) 2016-2019 Highsoft AS
           *
           *  Authors: Jon Arild Nygard
           *
           *  License: www.highcharts.com/license
           *
           * */
  
          /**
           * Possible rotation options for data labels in the sunburst series.
           *
           * @typedef {"auto"|"perpendicular"|"parallel"} Highcharts.SeriesSunburstDataLabelsRotationValue
           */
  
          /**
           * Options for data labels in the sunburst series.
           *
           * @interface Highcharts.SeriesSunburstDataLabelsOptionsObject
           * @extends Highcharts.DataLabelsOptionsObject
           *//**
           * @name Highcharts.SeriesSunburstDataLabelsOptionsObject#align
           * @type {undefined}
           *//**
           * @name Highcharts.SeriesSunburstDataLabelsOptionsObject#allowOverlap
           * @type {undefined}
           *//**
           * Decides how the data label will be rotated relative to the perimeter
           * of the sunburst. Valid values are `auto`, `parallel` and
           * `perpendicular`. When `auto`, the best fit will be computed for the
           * point.
           *
           * The `series.rotation` option takes precedence over `rotationMode`.
           *
           * @name Highcharts.SeriesSunburstDataLabelsOptionsObject#rotationMode
           * @type {Highcharts.SeriesSunburstDataLabelsRotationValue|undefined}
           * @since 6.0.0
           */
  
  
  
          var CenteredSeriesMixin = H.CenteredSeriesMixin,
              Series = H.Series,
              extend = H.extend,
              getCenter = CenteredSeriesMixin.getCenter,
              getColor = mixinTreeSeries.getColor,
              getLevelOptions = mixinTreeSeries.getLevelOptions,
              getStartAndEndRadians = CenteredSeriesMixin.getStartAndEndRadians,
              isBoolean = function (x) {
                  return typeof x === 'boolean';
              },
              isNumber = H.isNumber,
              isObject = H.isObject,
              isString = H.isString,
              merge = H.merge,
              noop = H.noop,
              rad2deg = 180 / Math.PI,
              seriesType = H.seriesType,
              seriesTypes = H.seriesTypes,
              setTreeValues = mixinTreeSeries.setTreeValues,
              updateRootId = mixinTreeSeries.updateRootId;
  
          // TODO introduce step, which should default to 1.
          var range = function range(from, to) {
              var result = [],
                  i;
  
              if (isNumber(from) && isNumber(to) && from <= to) {
                  for (i = from; i <= to; i++) {
                      result.push(i);
                  }
              }
              return result;
          };
  
          /**
           * @private
           * @function calculateLevelSizes
           *
           * @param {object} levelOptions
           *        Map of level to its options.
           *
           * @param {object} params
           *        Object containing number parameters `innerRadius` and `outerRadius`.
           */
          var calculateLevelSizes = function calculateLevelSizes(levelOptions, params) {
              var result,
                  p = isObject(params) ? params : {},
                  totalWeight = 0,
                  diffRadius,
                  levels,
                  levelsNotIncluded,
                  remainingSize,
                  from,
                  to;
  
              if (isObject(levelOptions)) {
                  result = merge({}, levelOptions); // Copy levelOptions
                  from = isNumber(p.from) ? p.from : 0;
                  to = isNumber(p.to) ? p.to : 0;
                  levels = range(from, to);
                  levelsNotIncluded = Object.keys(result).filter(function (k) {
                      return levels.indexOf(+k) === -1;
                  });
                  diffRadius = remainingSize = isNumber(p.diffRadius) ? p.diffRadius : 0;
  
                  // Convert percentage to pixels.
                  // Calculate the remaining size to divide between "weight" levels.
                  // Calculate total weight to use in convertion from weight to pixels.
                  levels.forEach(function (level) {
                      var options = result[level],
                          unit = options.levelSize.unit,
                          value = options.levelSize.value;
  
                      if (unit === 'weight') {
                          totalWeight += value;
                      } else if (unit === 'percentage') {
                          options.levelSize = {
                              unit: 'pixels',
                              value: (value / 100) * diffRadius
                          };
                          remainingSize -= options.levelSize.value;
                      } else if (unit === 'pixels') {
                          remainingSize -= value;
                      }
                  });
  
                  // Convert weight to pixels.
                  levels.forEach(function (level) {
                      var options = result[level],
                          weight;
  
                      if (options.levelSize.unit === 'weight') {
                          weight = options.levelSize.value;
                          result[level].levelSize = {
                              unit: 'pixels',
                              value: (weight / totalWeight) * remainingSize
                          };
                      }
                  });
  
                  // Set all levels not included in interval [from,to] to have 0 pixels.
                  levelsNotIncluded.forEach(function (level) {
                      result[level].levelSize = {
                          value: 0,
                          unit: 'pixels'
                      };
                  });
              }
              return result;
          };
  
          /**
           * Find a set of coordinates given a start coordinates, an angle, and a
           * distance.
           *
           * @private
           * @function getEndPoint
           *
           * @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 {Highcharts.SVGAttributes}
           *         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 layoutAlgorithm = function layoutAlgorithm(parent, children, options) {
              var startAngle = parent.start,
                  range = parent.end - startAngle,
                  total = parent.val,
                  x = parent.x,
                  y = parent.y,
                  radius = (
                      (
                          options &&
                          isObject(options.levelSize) &&
                          isNumber(options.levelSize.value)
                      ) ?
                          options.levelSize.value :
                          0
                  ),
                  innerRadius = parent.r,
                  outerRadius = innerRadius + radius,
                  slicedOffset = options && isNumber(options.slicedOffset) ?
                      options.slicedOffset :
                      0;
  
              return (children || []).reduce(function (arr, child) {
                  var percentage = (1 / total) * child.val,
                      radians = percentage * range,
                      radiansCenter = startAngle + (radians / 2),
                      offsetPosition = getEndPoint(x, y, radiansCenter, slicedOffset),
                      values = {
                          x: child.sliced ? offsetPosition.x : x,
                          y: child.sliced ? offsetPosition.y : y,
                          innerR: innerRadius,
                          r: outerRadius,
                          radius: radius,
                          start: startAngle,
                          end: startAngle + radians
                      };
  
                  arr.push(values);
                  startAngle = values.end;
                  return arr;
              }, []);
          };
  
          var getDlOptions = function getDlOptions(params) {
              // Set options to new object to avoid problems with scope
              var point = params.point,
                  shape = isObject(params.shapeArgs) ? params.shapeArgs : {},
                  optionsPoint = (
                      isObject(params.optionsPoint) ?
                          params.optionsPoint.dataLabels :
                          {}
                  ),
                  optionsLevel = (
                      isObject(params.level) ?
                          params.level.dataLabels :
                          {}
                  ),
                  options = merge({
                      style: {}
                  }, optionsLevel, optionsPoint),
                  rotationRad,
                  rotation,
                  rotationMode = options.rotationMode;
  
              if (!isNumber(options.rotation)) {
                  if (rotationMode === 'auto') {
                      if (
                          point.innerArcLength < 1 &&
                          point.outerArcLength > shape.radius
                      ) {
                          rotationRad = 0;
                      } else if (
                          point.innerArcLength > 1 &&
                          point.outerArcLength > 1.5 * shape.radius
                      ) {
                          rotationMode = 'parallel';
                      } else {
                          rotationMode = 'perpendicular';
                      }
                  }
  
                  if (rotationMode !== 'auto') {
                      rotationRad = (shape.end - (shape.end - shape.start) / 2);
                  }
  
                  if (rotationMode === 'parallel') {
                      options.style.width = Math.min(
                          shape.radius * 2.5,
                          (point.outerArcLength + point.innerArcLength) / 2
                      );
                  } else {
                      options.style.width = shape.radius;
                  }
  
                  if (
                      rotationMode === 'perpendicular' &&
                      point.series.chart.renderer.fontMetrics(options.style.fontSize).h >
                      point.outerArcLength
                  ) {
                      options.style.width = 1;
                  }
  
                  // Apply padding (#8515)
                  options.style.width = Math.max(
                      options.style.width - 2 * (options.padding || 0),
                      1
                  );
  
                  rotation = (rotationRad * rad2deg) % 180;
                  if (rotationMode === 'parallel') {
                      rotation -= 90;
                  }
  
                  // Prevent text from rotating upside down
                  if (rotation > 90) {
                      rotation -= 180;
                  } else 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 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,
                  from = {},
                  to = {
                      end: shape.end,
                      start: shape.start,
                      innerR: shape.innerR,
                      r: shape.r,
                      x: shape.x,
                      y: shape.y
                  };
  
              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 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,
                      index: options.index,
                      mapOptionsToLevel: options.mapOptionsToLevel,
                      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;
                  // Set slicing on node, but avoid slicing the top node.
                  node.sliced = (node.id !== options.idRoot) ? point.sliced : false;
              }
              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.
           *
           * @sample highcharts/demo/sunburst
           *         Sunburst chart
           *
           * @extends      plotOptions.pie
           * @excluding    allAreas, clip, colorAxis, compare, compareBase, dataGrouping,
           *               depth, endAngle, gapSize, gapUnit, ignoreHiddenPoint,
           *               innerSize, joinBy, legendType, linecap, minSize,
           *               navigatorOptions, pointRange
           * @product      highcharts
           * @optionparent plotOptions.sunburst
           */
          var sunburstOptions = {
  
              /**
               * Set options on specific levels. Takes precedence over series options,
               * but not point options.
               *
               * @sample highcharts/demo/sunburst
               *         Sunburst chart
               *
               * @type      {Array<*>}
               * @apioption plotOptions.sunburst.levels
               */
  
              /**
               * Can set a `borderColor` on all points which lies on the same level.
               *
               * @type      {Highcharts.ColorString}
               * @apioption plotOptions.sunburst.levels.borderColor
               */
  
              /**
               * Can set a `borderWidth` on all points which lies on the same level.
               *
               * @type      {number}
               * @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      {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
               * @apioption plotOptions.sunburst.levels.color
               */
  
              /**
               * Can set a `colorVariation` on all points which lies on the same level.
               *
               * @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      {number}
               * @apioption plotOptions.sunburst.levels.colorVariation.to
               */
  
              /**
               * Can set `dataLabels` on all points which lies on the same level.
               *
               * @type      {object}
               * @apioption plotOptions.sunburst.levels.dataLabels
               */
  
              /**
               * Can set a `levelSize` on all points which lies on the same level.
               *
               * @type      {object}
               * @apioption plotOptions.sunburst.levels.levelSize
               */
  
              /**
               * 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. Deprecated and replaced by
               * [allowTraversingTree](#plotOptions.sunburst.allowTraversingTree).
               *
               * @deprecated
               * @type      {boolean}
               * @default   false
               * @since     6.0.0
               * @product   highcharts
               * @apioption plotOptions.sunburst.allowDrillToNode
               */
  
              /**
               * When enabled the user can click on a point which is a parent and
               * zoom in on its children.
               *
               * @type      {boolean}
               * @default   false
               * @since     7.0.3
               * @product   highcharts
               * @apioption plotOptions.sunburst.allowTraversingTree
               */
  
              /**
               * The center of the sunburst chart relative to the plot area. Can be
               * percentages or pixel values.
               *
               * @sample {highcharts} highcharts/plotoptions/pie-center/
               *         Centered at 100, 100
               *
               * @type    {Array<number|string>}
               * @default ["50%", "50%"]
               * @product highcharts
               */
              center: ['50%', '50%'],
              colorByPoint: false,
              /**
               * Disable inherited opacity from Treemap series.
               *
               * @ignore-option
               */
              opacity: 1,
              /**
               * @type {Highcharts.SeriesSunburstDataLabelsOptionsObject|Highcharts.DataLabelsOptionsObject}
               */
              dataLabels: {
                  /** @ignore-option */
                  allowOverlap: true,
                  /** @ignore-option */
                  defer: true,
                  /** @ignore-option */
                  rotationMode: 'auto',
                  /** @ignore-option */
                  style: {
                      textOverflow: 'ellipsis'
                  }
              },
              /**
               * Which point to use as a root in the visualization.
               *
               * @type {string}
               */
              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,
  
              /**
               * Determines the width of the ring per level.
               *
               * @sample {highcharts} highcharts/plotoptions/sunburst-levelsize/
               *         Sunburst with various sizes per level
               *
               * @since 6.0.5
               */
              levelSize: {
                  /**
                   * The value used for calculating the width of the ring. Its' affect is
                   * determined by `levelSize.unit`.
                   *
                   * @sample {highcharts} highcharts/plotoptions/sunburst-levelsize/
                   *         Sunburst with various sizes per level
                   */
                  value: 1,
                  /**
                   * How to interpret `levelSize.value`.
                   *
                   * - `percentage` gives a width relative to result of outer radius minus
                   *   inner radius.
                   *
                   * - `pixels` gives the ring a fixed width in pixels.
                   *
                   * - `weight` takes the remaining width after percentage and pixels, and
                   *   distributes it accross all "weighted" levels. The value relative to
                   *   the sum of all weights determines the width.
                   *
                   * @sample {highcharts} highcharts/plotoptions/sunburst-levelsize/
                   *         Sunburst with various sizes per level
                   *
                   * @validvalue ["percentage", "pixels", "weight"]
                   */
                  unit: 'weight'
              },
  
              /**
               * Options for the button appearing when traversing down in a treemap.
               *
               * @extends plotOptions.treemap.traverseUpButton
               * @since 6.0.0
               * @apioption plotOptions.sunburst.traverseUpButton
               */
  
              /**
               * If a point is sliced, moved out from the center, how many pixels
               * should it be moved?.
               *
               * @sample highcharts/plotoptions/sunburst-sliced
               *         Sliced sunburst
               *
               * @since 6.0.4
               */
              slicedOffset: 10
          };
  
          // Properties of the Sunburst series.
          var sunburstSeries = {
              drawDataLabels: noop, // drawDataLabels is called in drawPoints
              drawPoints: function drawPoints() {
                  var series = this,
                      mapOptionsToLevel = series.mapOptionsToLevel,
                      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,
                      center = {
                          x: positions[0],
                          y: positions[1]
                      },
                      innerR = positions[3] / 2,
                      renderer = series.chart.renderer,
                      animateLabels,
                      animateLabelsCalled = false,
                      addedHack = false,
                      hackDataLabelAnimation = !!(
                          animation &&
                          hasRendered &&
                          idRoot !== idPreviousRoot &&
                          series.dataLabelsGroup
                      );
  
                  if (hackDataLabelAnimation) {
                      series.dataLabelsGroup.attr({ opacity: 0 });
                      animateLabels = function () {
                          var s = series;
  
                          animateLabelsCalled = true;
                          if (s.dataLabelsGroup) {
                              s.dataLabelsGroup.animate({
                                  opacity: 1,
                                  visibility: 'visible'
                              });
                          }
                      };
                  }
                  points.forEach(function (point) {
                      var node = point.node,
                          level = mapOptionsToLevel[node.level],
                          shapeExisting = point.shapeExisting || {},
                          shape = node.shapeArgs || {},
                          animationInfo,
                          onComplete,
                          visible = !!(node.visible && node.shapeArgs);
  
                      if (hasRendered && animation) {
                          animationInfo = getAnimation(shape, {
                              center: center,
                              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({
                          point: point,
                          level: level,
                          optionsPoint: point.options,
                          shapeArgs: shape
                      });
                      if (!addedHack && visible) {
                          addedHack = true;
                          onComplete = animateLabels;
                      }
                      point.draw({
                          animatableAttribs: animationInfo.to,
                          attribs: extend(
                              animationInfo.from,
                              !chart.styledMode && series.pointAttribs(
                                  point,
                                  point.selected && 'select'
                              )
                          ),
                          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;
                      // If animateLabels is called before labels were hidden, then call
                      // it again.
                      if (animateLabelsCalled) {
                          animateLabels();
                      }
                  } else {
                      Series.prototype.drawDataLabels.call(series);
                  }
              },
  
              pointAttribs: seriesTypes.column.prototype.pointAttribs,
  
              // The layout algorithm for the levels
              layoutAlgorithm: layoutAlgorithm,
  
              // Set the shape arguments on the nodes. Recursive from root down.
              setShapeArgs: function (parent, parentValues, mapOptionsToLevel) {
                  var childrenValues = [],
                      level = parent.level + 1,
                      options = mapOptionsToLevel[level],
                      // Collect all children which should be included
                      children = parent.children.filter(function (n) {
                          return n.visible;
                      }),
                      twoPi = 6.28; // Two times Pi.
  
                  childrenValues = this.layoutAlgorithm(parentValues, children, options);
                  children.forEach(function (child, index) {
                      var values = childrenValues[index],
                          angle = values.start + ((values.end - values.start) / 2),
                          radius = values.innerR + ((values.r - values.innerR) / 2),
                          radians = (values.end - values.start),
                          isCircle = (values.innerR === 0 && radians > twoPi),
                          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
                          );
  
                      // The inner arc length is a convenience for data label filters.
                      if (this.points[child.i]) {
                          this.points[child.i].innerArcLength = radians * values.innerR;
                          this.points[child.i].outerArcLength = radians * values.r;
                      }
  
                      child.shapeArgs = merge(values, {
                          plotX: center.x,
                          plotY: center.y + 4 * Math.abs(Math.cos(angle))
                      });
                      child.values = merge(values, {
                          val: val
                      });
                      // If node has children, then call method recursively
                      if (child.children.length) {
                          this.setShapeArgs(child, child.values, mapOptionsToLevel);
                      }
                  }, this);
              },
  
  
              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,
                      diffRadius = outerRadius - innerRadius,
                      // NOTE: updateRootId modifies series.
                      rootId = updateRootId(series),
                      mapIdToNode = series.nodeMap,
                      mapOptionsToLevel,
                      idTop,
                      nodeRoot = mapIdToNode && mapIdToNode[rootId],
                      nodeTop,
                      tree,
                      values;
  
                  series.shapeRoot = nodeRoot && nodeRoot.shapeArgs;
                  // Call prototype function
                  Series.prototype.translate.call(series);
                  // @todo Only if series.isDirtyData is true
                  tree = series.tree = series.getTree();
  
                  // Render traverseUpButton, after series.nodeMap i calculated.
                  series.renderTraverseUpButton(rootId);
                  mapIdToNode = series.nodeMap;
                  nodeRoot = mapIdToNode[rootId];
                  idTop = isString(nodeRoot.parent) ? nodeRoot.parent : '';
                  nodeTop = mapIdToNode[idTop];
                  mapOptionsToLevel = getLevelOptions({
                      from: nodeRoot.level > 0 ? nodeRoot.level : 1,
                      levels: series.options.levels,
                      to: tree.height,
                      defaults: {
                          colorByPoint: options.colorByPoint,
                          dataLabels: options.dataLabels,
                          levelIsConstant: options.levelIsConstant,
                          levelSize: options.levelSize,
                          slicedOffset: options.slicedOffset
                      }
                  });
                  // NOTE consider doing calculateLevelSizes in a callback to
                  // getLevelOptions
                  mapOptionsToLevel = calculateLevelSizes(mapOptionsToLevel, {
                      diffRadius: diffRadius,
                      from: nodeRoot.level > 0 ? nodeRoot.level : 1,
                      to: tree.height
                  });
                  // TODO Try to combine setTreeValues & setColorRecursive to avoid
                  //  unnecessary looping.
                  setTreeValues(tree, {
                      before: cbSetTreeValuesBefore,
                      idRoot: rootId,
                      levelIsConstant: options.levelIsConstant,
                      mapOptionsToLevel: mapOptionsToLevel,
                      mapIdToNode: mapIdToNode,
                      points: series.points,
                      series: series
                  });
                  values = mapIdToNode[''].shapeArgs = {
                      end: radians.end,
                      r: innerRadius,
                      start: radians.start,
                      val: nodeRoot.val,
                      x: positions[0],
                      y: positions[1]
                  };
                  this.setShapeArgs(nodeTop, values, mapOptionsToLevel);
                  // Set mapOptionsToLevel on series for use in drawPoints.
                  series.mapOptionsToLevel = mapOptionsToLevel;
              },
  
              // 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;
                  }
              },
              utils: {
                  calculateLevelSizes: calculateLevelSizes,
                  range: range
              }
          };
  
          // Properties of the Sunburst series.
          var sunburstPoint = {
              draw: drawPoint,
              shouldDraw: function shouldDraw() {
                  return !this.isNull;
              },
              isValid: function isValid() {
                  return true;
              }
          };
  
          /**
           * A `sunburst` series. If the [type](#series.sunburst.type) option is
           * not specified, it is inherited from [chart.type](#chart.type).
           *
           * @extends   series,plotOptions.sunburst
           * @excluding dataParser, dataURL, stack
           * @product   highcharts
           * @apioption series.sunburst
           */
  
          /**
           * @type      {Array<number|null|*>}
           * @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|null}
           * @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}
           * @since     6.0.0
           * @product   highcharts
           * @apioption series.treemap.data.parent
           */
  
          /**
            * Whether to display a slice offset from the center. When a sunburst point is
            * sliced, its children are also offset.
            *
            * @sample highcharts/plotoptions/sunburst-sliced
            *         Sliced sunburst
            *
            * @type      {boolean}
            * @default   false
            * @since     6.0.4
            * @product   highcharts
            * @apioption series.sunburst.data.sliced
            */
  
          /**
           * @private
           * @class
           * @name Highcharts.seriesTypes.sunburst
           *
           * @augments Highcharts.Series
           */
          seriesType(
              'sunburst',
              'treemap',
              sunburstOptions,
              sunburstSeries,
              sunburstPoint
          );
  
      });
      _registerModule(_modules, 'masters/modules/sunburst.src.js', [], function () {
  
  
      });
  }));
  