highcharts
Version:
JavaScript charting framework
96 lines (95 loc) • 2.35 kB
JavaScript
/* *
*
* Sankey diagram module
*
* (c) 2010-2025 Torstein Honsi
*
* License: www.highcharts.com/license
*
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
*
* */
;
import Point from '../../Core/Series/Point.js';
import SeriesRegistry from '../../Core/Series/SeriesRegistry.js';
const { column: ColumnSeries } = SeriesRegistry.seriesTypes;
import U from '../../Core/Utilities.js';
const { defined } = U;
/* *
*
* Class
*
* */
class SankeyPoint extends ColumnSeries.prototype.pointClass {
/* *
*
* Functions
*
* */
/**
* @private
*/
applyOptions(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
*/
getClassName() {
return (this.isNode ? 'highcharts-node ' : 'highcharts-link ') +
Point.prototype.getClassName.call(this);
}
/**
* If there are incoming links, place it to the right of the
* highest order column that links to this one.
*
* @private
*/
getFromNode() {
const node = this;
let fromColumn = -1, fromNode;
for (let i = 0; i < node.linksTo.length; i++) {
const point = node.linksTo[i];
if (point.fromNode.column > fromColumn &&
point.fromNode !== node // #16080
) {
fromNode = point.fromNode;
fromColumn = fromNode.column;
}
}
return { fromNode, fromColumn };
}
/**
* Calculate node.column if it's not set by user
* @private
*/
setNodeColumn() {
const node = this;
if (!defined(node.options.column)) {
// No links to this node, place it left
if (node.linksTo.length === 0) {
node.column = 0;
}
else {
node.column = node.getFromNode().fromColumn + 1;
}
}
}
/**
* @private
*/
isValid() {
return this.isNode || typeof this.weight === 'number';
}
}
/* *
*
* Default Export
*
* */
export default SankeyPoint;