highcharts
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JavaScript charting framework
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JavaScript
/**
* @license Highcharts JS v9.0.1 (2021-02-16)
*
* Sankey diagram module
*
* (c) 2010-2021 Torstein Honsi
*
* 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/sankey', ['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/Nodes.js', [_modules['Core/Globals.js'], _modules['Core/Series/Point.js'], _modules['Core/Series/Series.js'], _modules['Core/Utilities.js']], function (H, Point, Series, U) {
/* *
*
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
*
* */
var defined = U.defined,
extend = U.extend,
find = U.find,
pick = U.pick;
var NodesMixin = H.NodesMixin = {
/* eslint-disable valid-jsdoc */
/**
* Create a single node that holds information on incoming and outgoing
* links.
* @private
*/
createNode: function (id) {
/**
* @private
*/
function findById(nodes,
id) {
return find(nodes,
function (node) {
return node.id === id;
});
}
var node = findById(this.nodes,
id),
PointClass = this.pointClass,
options;
if (!node) {
options = this.options.nodes && findById(this.options.nodes, id);
node = (new PointClass()).init(this, extend({
className: 'highcharts-node',
isNode: true,
id: id,
y: 1 // Pass isNull test
}, options));
node.linksTo = [];
node.linksFrom = [];
node.formatPrefix = 'node';
node.name = node.name || node.options.id || ''; // for use in formats
// Mass is used in networkgraph:
node.mass = pick(
// Node:
node.options.mass, node.options.marker && node.options.marker.radius,
// Series:
this.options.marker && this.options.marker.radius,
// Default:
4);
/**
* Return the largest sum of either the incoming or outgoing links.
* @private
*/
node.getSum = function () {
var sumTo = 0,
sumFrom = 0;
node.linksTo.forEach(function (link) {
sumTo += link.weight;
});
node.linksFrom.forEach(function (link) {
sumFrom += link.weight;
});
return Math.max(sumTo, sumFrom);
};
/**
* Get the offset in weight values of a point/link.
* @private
*/
node.offset = function (point, coll) {
var offset = 0;
for (var i = 0; i < node[coll].length; i++) {
if (node[coll][i] === point) {
return offset;
}
offset += node[coll][i].weight;
}
};
// Return true if the node has a shape, otherwise all links are
// outgoing.
node.hasShape = function () {
var outgoing = 0;
node.linksTo.forEach(function (link) {
if (link.outgoing) {
outgoing++;
}
});
return (!node.linksTo.length ||
outgoing !== node.linksTo.length);
};
this.nodes.push(node);
}
return node;
},
/**
* Extend generatePoints by adding the nodes, which are Point objects
* but pushed to the this.nodes array.
*/
generatePoints: function () {
var chart = this.chart,
nodeLookup = {};
Series.prototype.generatePoints.call(this);
if (!this.nodes) {
this.nodes = []; // List of Point-like node items
}
this.colorCounter = 0;
// Reset links from previous run
this.nodes.forEach(function (node) {
node.linksFrom.length = 0;
node.linksTo.length = 0;
node.level = node.options.level;
});
// Create the node list and set up links
this.points.forEach(function (point) {
if (defined(point.from)) {
if (!nodeLookup[point.from]) {
nodeLookup[point.from] = this.createNode(point.from);
}
nodeLookup[point.from].linksFrom.push(point);
point.fromNode = nodeLookup[point.from];
// Point color defaults to the fromNode's color
if (chart.styledMode) {
point.colorIndex = pick(point.options.colorIndex, nodeLookup[point.from].colorIndex);
}
else {
point.color =
point.options.color || nodeLookup[point.from].color;
}
}
if (defined(point.to)) {
if (!nodeLookup[point.to]) {
nodeLookup[point.to] = this.createNode(point.to);
}
nodeLookup[point.to].linksTo.push(point);
point.toNode = nodeLookup[point.to];
}
point.name = point.name || point.id; // for use in formats
}, this);
// Store lookup table for later use
this.nodeLookup = nodeLookup;
},
// Destroy all nodes on setting new data
setData: function () {
if (this.nodes) {
this.nodes.forEach(function (node) {
node.destroy();
});
this.nodes.length = 0;
}
Series.prototype.setData.apply(this, arguments);
},
// Destroy alll nodes and links
destroy: function () {
// Nodes must also be destroyed (#8682, #9300)
this.data = []
.concat(this.points || [], this.nodes);
return Series.prototype.destroy.apply(this, arguments);
},
/**
* When hovering node, highlight all connected links. When hovering a link,
* highlight all connected nodes.
*/
setNodeState: function (state) {
var args = arguments,
others = this.isNode ? this.linksTo.concat(this.linksFrom) :
[this.fromNode,
this.toNode];
if (state !== 'select') {
others.forEach(function (linkOrNode) {
if (linkOrNode && linkOrNode.series) {
Point.prototype.setState.apply(linkOrNode, args);
if (!linkOrNode.isNode) {
if (linkOrNode.fromNode.graphic) {
Point.prototype.setState.apply(linkOrNode.fromNode, args);
}
if (linkOrNode.toNode && linkOrNode.toNode.graphic) {
Point.prototype.setState.apply(linkOrNode.toNode, args);
}
}
}
});
}
Point.prototype.setState.apply(this, args);
}
/* eslint-enable valid-jsdoc */
};
return NodesMixin;
});
_registerModule(_modules, 'Series/Sankey/SankeyPoint.js', [_modules['Mixins/Nodes.js'], _modules['Core/Series/Point.js'], _modules['Core/Series/SeriesRegistry.js'], _modules['Core/Utilities.js']], function (NodesMixin, Point, SeriesRegistry, U) {
/* *
*
* Sankey diagram module
*
* (c) 2010-2021 Torstein Honsi
*
* License: www.highcharts.com/license
*
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
*
* */
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d,
b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d,
b) { d.__proto__ = b; }) ||
function (d,
b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var ColumnSeries = SeriesRegistry.seriesTypes.column;
var defined = U.defined,
extend = U.extend;
/* *
*
* Class
*
* */
var SankeyPoint = /** @class */ (function (_super) {
__extends(SankeyPoint, _super);
function SankeyPoint() {
/* *
*
* Properties
*
* */
var _this = _super !== null && _super.apply(this,
arguments) || this;
_this.className = void 0;
_this.fromNode = void 0;
_this.level = void 0;
_this.linkBase = void 0;
_this.linksFrom = void 0;
_this.linksTo = void 0;
_this.mass = void 0;
_this.nodeX = void 0;
_this.nodeY = void 0;
_this.options = void 0;
_this.series = void 0;
_this.toNode = void 0;
return _this;
/* eslint-enable valid-jsdoc */
}
/* *
*
* Functions
*
* */
/* eslint-disable valid-jsdoc */
/**
* @private
*/
SankeyPoint.prototype.applyOptions = function (options, x) {
Point.prototype.applyOptions.call(this, options, x);
// Treat point.level as a synonym of point.column
if (defined(this.options.level)) {
this.options.column = this.column = this.options.level;
}
return this;
};
/**
* @private
*/
SankeyPoint.prototype.getClassName = function () {
return (this.isNode ? 'highcharts-node ' : 'highcharts-link ') +
Point.prototype.getClassName.call(this);
};
/**
* @private
*/
SankeyPoint.prototype.isValid = function () {
return this.isNode || typeof this.weight === 'number';
};
return SankeyPoint;
}(ColumnSeries.prototype.pointClass));
extend(SankeyPoint.prototype, {
setState: NodesMixin.setNodeState
});
/* *
*
* Default Export
*
* */
return SankeyPoint;
});
_registerModule(_modules, 'Mixins/TreeSeries.js', [_modules['Core/Color/Color.js'], _modules['Core/Utilities.js']], function (Color, U) {
/* *
*
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
*
* */
var extend = U.extend,
isArray = U.isArray,
isNumber = U.isNumber,
isObject = U.isObject,
merge = U.merge,
pick = U.pick;
var isBoolean = function (x) {
return typeof x === 'boolean';
}, isFn = function (x) {
return typeof x === 'function';
};
/* eslint-disable valid-jsdoc */
/**
* @todo Combine buildTree and buildNode with setTreeValues
* @todo Remove logic from Treemap and make it utilize this mixin.
* @private
*/
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;
};
/**
* @private
*/
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;
/**
* @private
*/
function variation(color) {
var colorVariation = level && level.colorVariation;
if (colorVariation) {
if (colorVariation.key === 'brightness') {
return Color.parse(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>|null}
* 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, 'Series/Sankey/SankeySeries.js', [_modules['Core/Color/Color.js'], _modules['Core/Globals.js'], _modules['Mixins/Nodes.js'], _modules['Series/Sankey/SankeyPoint.js'], _modules['Core/Series/SeriesRegistry.js'], _modules['Mixins/TreeSeries.js'], _modules['Core/Utilities.js']], function (Color, H, NodesMixin, SankeyPoint, SeriesRegistry, TreeSeriesMixin, U) {
/* *
*
* Sankey diagram module
*
* (c) 2010-2021 Torstein Honsi
*
* License: www.highcharts.com/license
*
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
*
* */
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d,
b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d,
b) { d.__proto__ = b; }) ||
function (d,
b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var Series = SeriesRegistry.series,
ColumnSeries = SeriesRegistry.seriesTypes.column;
var getLevelOptions = TreeSeriesMixin.getLevelOptions;
var defined = U.defined,
extend = U.extend,
find = U.find,
isObject = U.isObject,
merge = U.merge,
pick = U.pick,
relativeLength = U.relativeLength,
stableSort = U.stableSort;
/* *
*
* Class
*
* */
/**
* @private
* @class
* @name Highcharts.seriesTypes.sankey
*
* @augments Highcharts.Series
*/
var SankeySeries = /** @class */ (function (_super) {
__extends(SankeySeries, _super);
function SankeySeries() {
/* *
*
* Static Properties
*
* */
var _this = _super !== null && _super.apply(this,
arguments) || this;
/* *
*
* Properties
*
* */
_this.colDistance = void 0;
_this.data = void 0;
_this.group = void 0;
_this.nodeLookup = void 0;
_this.nodePadding = void 0;
_this.nodes = void 0;
_this.nodeWidth = void 0;
_this.options = void 0;
_this.points = void 0;
_this.translationFactor = void 0;
return _this;
/* eslint-enable valid-jsdoc */
}
/* *
*
* Static Functions
*
* */
// eslint-disable-next-line valid-jsdoc
/**
* @private
*/
SankeySeries.getDLOptions = function (params) {
var optionsPoint = (isObject(params.optionsPoint) ?
params.optionsPoint.dataLabels :
{}),
optionsLevel = (isObject(params.level) ?
params.level.dataLabels :
{}),
options = merge({
style: {}
},
optionsLevel,
optionsPoint);
return options;
};
/* *
*
* Functions
*
* */
/* eslint-disable valid-jsdoc */
/**
* Create a node column.
* @private
*/
SankeySeries.prototype.createNodeColumn = function () {
var series = this,
chart = this.chart,
column = [];
column.sum = function () {
return this.reduce(function (sum, node) {
return sum + node.getSum();
}, 0);
};
// Get the offset in pixels of a node inside the column.
column.offset = function (node, factor) {
var offset = 0,
totalNodeOffset,
nodePadding = series.nodePadding;
for (var i = 0; i < column.length; i++) {
var sum = column[i].getSum();
var height = Math.max(sum * factor,
series.options.minLinkWidth);
if (sum) {
totalNodeOffset = height + nodePadding;
}
else {
// If node sum equals 0 nodePadding is missed #12453
totalNodeOffset = 0;
}
if (column[i] === node) {
return {
relativeTop: offset + relativeLength(node.options.offset || 0, totalNodeOffset)
};
}
offset += totalNodeOffset;
}
};
// Get the top position of the column in pixels.
column.top = function (factor) {
var nodePadding = series.nodePadding;
var height = this.reduce(function (height,
node) {
if (height > 0) {
height += nodePadding;
}
var nodeHeight = Math.max(node.getSum() * factor,
series.options.minLinkWidth);
height += nodeHeight;
return height;
}, 0);
return (chart.plotSizeY - height) / 2;
};
return column;
};
/**
* Create node columns by analyzing the nodes and the relations between
* incoming and outgoing links.
* @private
*/
SankeySeries.prototype.createNodeColumns = function () {
var columns = [];
this.nodes.forEach(function (node) {
var fromColumn = -1,
fromNode,
i,
point;
if (!defined(node.options.column)) {
// No links to this node, place it left
if (node.linksTo.length === 0) {
node.column = 0;
// There are incoming links, place it to the right of the
// highest order column that links to this one.
}
else {
for (i = 0; i < node.linksTo.length; i++) {
point = node.linksTo[0];
if (point.fromNode.column > fromColumn) {
fromNode = point.fromNode;
fromColumn = fromNode.column;
}
}
node.column = fromColumn + 1;
// Hanging layout for organization chart
if (fromNode &&
fromNode.options.layout === 'hanging') {
node.hangsFrom = fromNode;
i = -1; // Reuse existing variable i
find(fromNode.linksFrom, function (link, index) {
var found = link.toNode === node;
if (found) {
i = index;
}
return found;
});
node.column += i;
}
}
}
if (!columns[node.column]) {
columns[node.column] = this.createNodeColumn();
}
columns[node.column].push(node);
}, this);
// Fill in empty columns (#8865)
for (var i = 0; i < columns.length; i++) {
if (typeof columns[i] === 'undefined') {
columns[i] = this.createNodeColumn();
}
}
return columns;
};
/**
* Extend generatePoints by adding the nodes, which are Point objects
* but pushed to the this.nodes array.
* @private
*/
SankeySeries.prototype.generatePoints = function () {
NodesMixin.generatePoints.apply(this, arguments);
/**
* Order the nodes, starting with the root node(s). (#9818)
* @private
*/
function order(node, level) {
// Prevents circular recursion:
if (typeof node.level === 'undefined') {
node.level = level;
node.linksFrom.forEach(function (link) {
if (link.toNode) {
order(link.toNode, level + 1);
}
});
}
}
if (this.orderNodes) {
this.nodes
// Identify the root node(s)
.filter(function (node) {
return node.linksTo.length === 0;
})
// Start by the root node(s) and recursively set the level
// on all following nodes.
.forEach(function (node) {
order(node, 0);
});
stableSort(this.nodes, function (a, b) {
return a.level - b.level;
});
}
};
/**
* Overridable function to get node padding, overridden in dependency
* wheel series type.
* @private
*/
SankeySeries.prototype.getNodePadding = function () {
var nodePadding = this.options.nodePadding || 0;
// If the number of columns is so great that they will overflow with
// the given nodePadding, we sacrifice the padding in order to
// render all nodes within the plot area (#11917).
if (this.nodeColumns) {
var maxLength = this.nodeColumns.reduce(function (acc,
col) { return Math.max(acc,
col.length); }, 0);
if (maxLength * nodePadding > this.chart.plotSizeY) {
nodePadding = this.chart.plotSizeY / maxLength;
}
}
return nodePadding;
};
/**
* Define hasData function for non-cartesian series.
* @private
* @return {boolean}
* Returns true if the series has points at all.
*/
SankeySeries.prototype.hasData = function () {
return !!this.processedXData.length; // != 0
};
/**
* Return the presentational attributes.
* @private
*/
SankeySeries.prototype.pointAttribs = function (point, state) {
if (!point) {
return {};
}
var series = this, level = point.isNode ? point.level : point.fromNode.level, levelOptions = series.mapOptionsToLevel[level || 0] || {}, options = point.options, stateOptions = (levelOptions.states && levelOptions.states[state || '']) || {}, values = [
'colorByPoint', 'borderColor', 'borderWidth', 'linkOpacity'
].reduce(function (obj, key) {
obj[key] = pick(stateOptions[key], options[key], levelOptions[key], series.options[key]);
return obj;
}, {}), color = pick(stateOptions.color, options.color, values.colorByPoint ? point.color : levelOptions.color);
// Node attributes
if (point.isNode) {
return {
fill: color,
stroke: values.borderColor,
'stroke-width': values.borderWidth
};
}
// Link attributes
return {
fill: Color.parse(color).setOpacity(values.linkOpacity).get()
};
};
/**
* Extend the render function to also render this.nodes together with
* the points.
* @private
*/
SankeySeries.prototype.render = function () {
var points = this.points;
this.points = this.points.concat(this.nodes || []);
ColumnSeries.prototype.render.call(this);
this.points = points;
};
/**
* Run pre-translation by generating the nodeColumns.
* @private
*/
SankeySeries.prototype.translate = function () {
var _this = this;
// Get the translation factor needed for each column to fill up the
// plot height
var getColumnTranslationFactor = function (column) {
var nodes = column.slice();
var minLinkWidth = _this.options.minLinkWidth || 0;
var exceedsMinLinkWidth;
var factor = 0;
var i;
var remainingHeight = chart.plotSizeY -
options.borderWidth - (column.length - 1) * series.nodePadding;
// Because the minLinkWidth option doesn't obey the direct
// translation, we need to run translation iteratively, check
// node heights, remove those nodes affected by minLinkWidth,
// check again, etc.
while (column.length) {
factor = remainingHeight / column.sum();
exceedsMinLinkWidth = false;
i = column.length;
while (i--) {
if (column[i].getSum() * factor < minLinkWidth) {
column.splice(i, 1);
remainingHeight -= minLinkWidth;
exceedsMinLinkWidth = true;
}
}
if (!exceedsMinLinkWidth) {
break;
}
}
// Re-insert original nodes
column.length = 0;
nodes.forEach(function (node) { return column.push(node); });
return factor;
};
if (!this.processedXData) {
this.processData();
}
this.generatePoints();
this.nodeColumns = this.createNodeColumns();
this.nodeWidth = relativeLength(this.options.nodeWidth, this.chart.plotSizeX);
var series = this,
chart = this.chart,
options = this.options,
nodeWidth = this.nodeWidth,
nodeColumns = this.nodeColumns;
this.nodePadding = this.getNodePadding();
// Find out how much space is needed. Base it on the translation
// factor of the most spaceous column.
this.translationFactor = nodeColumns.reduce(function (translationFactor, column) { return Math.min(translationFactor, getColumnTranslationFactor(column)); }, Infinity);
this.colDistance =
(chart.plotSizeX - nodeWidth -
options.borderWidth) / Math.max(1, nodeColumns.length - 1);
// Calculate level options used in sankey and organization
series.mapOptionsToLevel = getLevelOptions({
// NOTE: if support for allowTraversingTree is added, then from
// should be the level of the root node.
from: 1,
levels: options.levels,
to: nodeColumns.length - 1,
defaults: {
borderColor: options.borderColor,
borderRadius: options.borderRadius,
borderWidth: options.borderWidth,
color: series.color,
colorByPoint: options.colorByPoint,
// NOTE: if support for allowTraversingTree is added, then
// levelIsConstant should be optional.
levelIsConstant: true,
linkColor: options.linkColor,
linkLineWidth: options.linkLineWidth,
linkOpacity: options.linkOpacity,
states: options.states
}
});
// First translate all nodes so we can use them when drawing links
nodeColumns.forEach(function (column) {
column.forEach(function (node) {
series.translateNode(node, column);
});
}, this);
// Then translate links
this.nodes.forEach(function (node) {
// Translate the links from this node
node.linksFrom.forEach(function (linkPoint) {
// If weight is 0 - don't render the link path #12453,
// render null points (for organization chart)
if ((linkPoint.weight || linkPoint.isNull) && linkPoint.to) {
series.translateLink(linkPoint);
linkPoint.allowShadow = false;
}
});
});
};
/**
* Run translation operations for one link.
* @private
*/
SankeySeries.prototype.translateLink = function (point) {
var getY = function (node,
fromOrTo) {
var _a;
var linkTop = (node.offset(point,
fromOrTo) *
translationFactor);
var y = Math.min(node.nodeY + linkTop,
// Prevent links from spilling below the node (#12014)
node.nodeY + ((_a = node.shapeArgs) === null || _a === void 0 ? void 0 : _a.height) - linkHeight);
return y;
};
var fromNode = point.fromNode, toNode = point.toNode, chart = this.chart, translationFactor = this.translationFactor, linkHeight = Math.max(point.weight * translationFactor, this.options.minLinkWidth), options = this.options, curvy = ((chart.inverted ? -this.colDistance : this.colDistance) *
options.curveFactor), fromY = getY(fromNode, 'linksFrom'), toY = getY(toNode, 'linksTo'), nodeLeft = fromNode.nodeX, nodeW = this.nodeWidth, right = toNode.column * this.colDistance, outgoing = point.outgoing, straight = right > nodeLeft + nodeW;
if (chart.inverted) {
fromY = chart.plotSizeY - fromY;
toY = (chart.plotSizeY || 0) - toY;
right = chart.plotSizeX - right;
nodeW = -nodeW;
linkHeight = -linkHeight;
straight = nodeLeft > right;
}
point.shapeType = 'path';
point.linkBase = [
fromY,
fromY + linkHeight,
toY,
toY + linkHeight
];
// Links going from left to right
if (straight && typeof toY === 'number') {
point.shapeArgs = {
d: [
['M', nodeLeft + nodeW, fromY],
[
'C',
nodeLeft + nodeW + curvy,
fromY,
right - curvy,
toY,
right,
toY
],
['L', right + (outgoing ? nodeW : 0), toY + linkHeight / 2],
['L', right, toY + linkHeight],
[
'C',
right - curvy,
toY + linkHeight,
nodeLeft + nodeW + curvy,
fromY + linkHeight,
nodeLeft + nodeW, fromY + linkHeight
],
['Z']
]
};
// Experimental: Circular links pointing backwards. In
// v6.1.0 this breaks the rendering completely, so even
// this experimental rendering is an improvement. #8218.
// @todo
// - Make room for the link in the layout
// - Automatically determine if the link should go up or
// down.
}
else if (typeof toY === 'number') {
var bend = 20,
vDist = chart.plotHeight - fromY - linkHeight,
x1 = right - bend - linkHeight,
x2 = right - bend,
x3 = right,
x4 = nodeLeft + nodeW,
x5 = x4 + bend,
x6 = x5 + linkHeight,
fy1 = fromY,
fy2 = fromY + linkHeight,
fy3 = fy2 + bend,
y4 = fy3 + vDist,
y5 = y4 + bend,
y6 = y5 + linkHeight,
ty1 = toY,
ty2 = ty1 + linkHeight,
ty3 = ty2 + bend,
cfy1 = fy2 - linkHeight * 0.7,
cy2 = y5 + linkHeight * 0.7,
cty1 = ty2 - linkHeight * 0.7,
cx1 = x3 - linkHeight * 0.7,
cx2 = x4 + linkHeight * 0.7;
point.shapeArgs = {
d: [
['M', x4, fy1],
['C', cx2, fy1, x6, cfy1, x6, fy3],
['L', x6, y4],
['C', x6, cy2, cx2, y6, x4, y6],
['L', x3, y6],
['C', cx1, y6, x1, cy2, x1, y4],
['L', x1, ty3],
['C', x1, cty1, cx1, ty1, x3, ty1],
['L', x3, ty2],
['C', x2, ty2, x2, ty2, x2, ty3],
['L', x2, y4],
['C', x2, y5, x2, y5, x3, y5],
['L', x4, y5],
['C', x5, y5, x5, y5, x5, y4],
['L', x5, fy3],
['C', x5, fy2, x5, fy2, x4, fy2],
['Z']
]
};
}
// Place data labels in the middle
point.dlBox = {
x: nodeLeft + (right - nodeLeft + nodeW) / 2,
y: fromY + (toY - fromY) / 2,
height: linkHeight,
width: 0
};
// And set the tooltip anchor in the middle
point.tooltipPos = chart.inverted ? [
chart.plotSizeY - point.dlBox.y - linkHeight / 2,
chart.plotSizeX - point.dlBox.x
] : [
point.dlBox.x,
point.dlBox.y + linkHeight / 2
];
// Pass test in drawPoints
point.y = point.plotY = 1;
if (!point.color) {
point.color = fromNode.color;
}
};
/**
* Run translation operations for one node.
* @private
*/
SankeySeries.prototype.translateNode = function (node, column) {
var translationFactor = this.translationFactor,
chart = this.chart,
options = this.options,
sum = node.getSum(),
height = Math.max(Math.round(sum * translationFactor),
this.options.minLinkWidth),
crisp = Math.round(options.borderWidth) % 2 / 2,
nodeOffset = column.offset(node,
translationFactor),
fromNodeTop = Math.floor(pick(nodeOffset.absoluteTop, (column.top(translationFactor) +
nodeOffset.relativeTop))) + crisp,
left = Math.floor(this.colDistance * node.column +
options.borderWidth / 2) + crisp,
nodeLeft = chart.inverted ?
chart.plotSizeX - left :
left,
nodeWidth = Math.round(this.nodeWidth);
node.sum = sum;
// If node sum is 0, don't render the rect #12453
if (sum) {
// Draw the node
node.shapeType = 'rect';
node.nodeX = nodeLeft;
node.nodeY = fromNodeTop;
if (!chart.inverted) {
node.shapeArgs = {
x: nodeLeft,
y: fromNodeTop,
width: node.options.width || options.width || nodeWidth,
height: node.options.height || options.height || height
};
}
else {
node.shapeArgs = {
x: nodeLeft - nodeWidth,
y: chart.plotSizeY - fromNodeTop - height,
width: node.options.height || options.height || nodeWidth,