Carga
Carga
This commit is contained in:
@@ -0,0 +1,643 @@
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/* *
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*
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* (c) 2009-2021 Torstein Honsi
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*
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* License: www.highcharts.com/license
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*
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* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
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*
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* */
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/*
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* Highcharts module to place labels next to a series in a natural position.
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*
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* TODO:
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* - add column support (box collision detection, boxesToAvoid logic)
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* - avoid data labels, when data labels above, show series label below.
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* - add more options (connector, format, formatter)
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*
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* https://jsfiddle.net/highcharts/L2u9rpwr/
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* https://jsfiddle.net/highcharts/y5A37/
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* https://jsfiddle.net/highcharts/264Nm/
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* https://jsfiddle.net/highcharts/y5A37/
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*/
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'use strict';
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import A from '../../Core/Animation/AnimationUtilities.js';
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var animObject = A.animObject;
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import Chart from '../../Core/Chart/Chart.js';
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import FU from '../../Core/FormatUtilities.js';
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var format = FU.format;
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import D from '../../Core/DefaultOptions.js';
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var setOptions = D.setOptions;
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import SeriesLabelDefaults from './SeriesLabelDefaults.js';
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import SLU from './SeriesLabelUtilities.js';
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var boxIntersectLine = SLU.boxIntersectLine, intersectRect = SLU.intersectRect;
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import U from '../../Core/Utilities.js';
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var addEvent = U.addEvent, extend = U.extend, fireEvent = U.fireEvent, isNumber = U.isNumber, pick = U.pick, syncTimeout = U.syncTimeout;
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/* *
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*
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* Constants
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*
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* */
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var composedClasses = [];
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var labelDistance = 3;
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/* *
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*
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* Functions
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*
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* */
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/**
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* Check whether a proposed label position is clear of other elements.
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* @private
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*/
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function checkClearPoint(series, x, y, bBox, checkDistance) {
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var chart = series.chart, onArea = pick(series.options.label.onArea, !!series.area), findDistanceToOthers = (onArea || series.options.label.connectorAllowed), leastDistance = 16;
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var distToOthersSquared = Number.MAX_VALUE, // distance to other graphs
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distToPointSquared = Number.MAX_VALUE, dist, connectorPoint, serie, points, withinRange, xDist, yDist, i, j;
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/**
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* Get the weight in order to determine the ideal position. Larger distance
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* to other series gives more weight. Smaller distance to the actual point
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* (connector points only) gives more weight.
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* @private
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*/
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function getWeight(distToOthersSquared, distToPointSquared) {
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return distToOthersSquared - distToPointSquared;
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}
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// First check for collision with existing labels
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for (i = 0; i < chart.boxesToAvoid.length; i += 1) {
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if (intersectRect(chart.boxesToAvoid[i], {
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left: x,
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right: x + bBox.width,
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top: y,
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bottom: y + bBox.height
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})) {
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return false;
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}
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}
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// For each position, check if the lines around the label intersect with any
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// of the graphs.
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for (i = 0; i < chart.series.length; i += 1) {
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serie = chart.series[i];
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points = serie.interpolatedPoints;
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if (serie.visible && points) {
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for (j = 1; j < points.length; j += 1) {
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if (
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// To avoid processing, only check intersection if the X
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// values are close to the box.
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points[j].chartX >= x - leastDistance &&
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points[j - 1].chartX <= x + bBox.width +
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leastDistance
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/* @todo condition above is not the same as below
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(
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(points[j].chartX as any) >=
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(x - leastDistance)
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) && (
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(points[j - 1].chartX as any) <=
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(x + bBox.width + leastDistance)
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) */
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) {
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// If any of the box sides intersect with the line, return.
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if (boxIntersectLine(x, y, bBox.width, bBox.height, points[j - 1].chartX, points[j - 1].chartY, points[j].chartX, points[j].chartY)) {
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return false;
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}
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// But if it is too far away (a padded box doesn't
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// intersect), also return.
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if (series === serie && !withinRange && checkDistance) {
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withinRange = boxIntersectLine(x - leastDistance, y - leastDistance, bBox.width + 2 * leastDistance, bBox.height + 2 * leastDistance, points[j - 1].chartX, points[j - 1].chartY, points[j].chartX, points[j].chartY);
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}
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}
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// Find the squared distance from the center of the label. On
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// area series, avoid its own graph.
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if ((findDistanceToOthers || withinRange) &&
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(series !== serie || onArea)) {
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xDist = x + bBox.width / 2 - points[j].chartX;
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yDist = y + bBox.height / 2 - points[j].chartY;
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distToOthersSquared = Math.min(distToOthersSquared, xDist * xDist + yDist * yDist);
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}
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}
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// Do we need a connector?
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if (!onArea &&
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findDistanceToOthers &&
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series === serie &&
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((checkDistance && !withinRange) ||
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distToOthersSquared < Math.pow(series.options.label
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.connectorNeighbourDistance, 2))) {
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for (j = 1; j < points.length; j += 1) {
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dist = Math.min((Math.pow(x + bBox.width / 2 - points[j].chartX, 2) +
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Math.pow(y + bBox.height / 2 - points[j].chartY, 2)), (Math.pow(x - points[j].chartX, 2) +
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Math.pow(y - points[j].chartY, 2)), (Math.pow(x + bBox.width - points[j].chartX, 2) +
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Math.pow(y - points[j].chartY, 2)), (Math.pow(x + bBox.width - points[j].chartX, 2) +
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Math.pow(y + bBox.height - points[j].chartY, 2)), (Math.pow(x - points[j].chartX, 2) +
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Math.pow(y + bBox.height - points[j].chartY, 2)));
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if (dist < distToPointSquared) {
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distToPointSquared = dist;
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connectorPoint = points[j];
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}
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}
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withinRange = true;
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}
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}
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}
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return !checkDistance || withinRange ? {
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x: x,
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y: y,
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weight: getWeight(distToOthersSquared, connectorPoint ? distToPointSquared : 0),
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connectorPoint: connectorPoint
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} : false;
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}
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/**
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* @private
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*/
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function compose(ChartClass, SVGRendererClass) {
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if (composedClasses.indexOf(ChartClass) === -1) {
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composedClasses.push(ChartClass);
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// Leave both events, we handle animation differently (#9815)
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addEvent(Chart, 'load', onChartRedraw);
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addEvent(Chart, 'redraw', onChartRedraw);
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}
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if (composedClasses.indexOf(SVGRendererClass) === -1) {
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composedClasses.push(SVGRendererClass);
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SVGRendererClass.prototype.symbols.connector = symbolConnector;
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}
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if (composedClasses.indexOf(setOptions) === -1) {
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composedClasses.push(setOptions);
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setOptions({ plotOptions: { series: { label: SeriesLabelDefaults } } });
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}
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}
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/**
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* The main initialize method that runs on chart level after initialization and
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* redraw. It runs in a timeout to prevent locking, and loops over all series,
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* taking all series and labels into account when placing the labels.
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*
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* @private
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* @function Highcharts.Chart#drawSeriesLabels
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*/
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function drawSeriesLabels(chart) {
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// console.time('drawSeriesLabels');
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var labelSeries = chart.labelSeries;
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chart.boxesToAvoid = [];
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// Build the interpolated points
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labelSeries.forEach(function (series) {
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series.interpolatedPoints = getPointsOnGraph(series);
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(series.options.label.boxesToAvoid || []).forEach(function (box) {
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chart.boxesToAvoid.push(box);
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});
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});
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chart.series.forEach(function (series) {
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var labelOptions = series.options.label;
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if (!labelOptions || (!series.xAxis && !series.yAxis)) {
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return;
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}
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var colorClass = ('highcharts-color-' + pick(series.colorIndex, 'none')), isNew = !series.labelBySeries, minFontSize = labelOptions.minFontSize, maxFontSize = labelOptions.maxFontSize, inverted = chart.inverted, paneLeft = (inverted ? series.yAxis.pos : series.xAxis.pos), paneTop = (inverted ? series.xAxis.pos : series.yAxis.pos), paneWidth = chart.inverted ? series.yAxis.len : series.xAxis.len, paneHeight = chart.inverted ? series.xAxis.len : series.yAxis.len, points = series.interpolatedPoints, onArea = pick(labelOptions.onArea, !!series.area), results = [];
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var bBox, x, y, clearPoint, i, best, label = series.labelBySeries, dataExtremes, areaMin, areaMax;
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// Stay within the area data bounds (#10038)
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if (onArea && !inverted) {
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dataExtremes = [
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series.xAxis.toPixels(series.xData[0]),
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series.xAxis.toPixels(series.xData[series.xData.length - 1])
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];
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areaMin = Math.min.apply(Math, dataExtremes);
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areaMax = Math.max.apply(Math, dataExtremes);
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}
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/**
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* @private
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*/
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function insidePane(x, y, bBox) {
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var leftBound = Math.max(paneLeft, pick(areaMin, -Infinity)), rightBound = Math.min(paneLeft + paneWidth, pick(areaMax, Infinity));
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return (x > leftBound &&
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x <= rightBound - bBox.width &&
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y >= paneTop &&
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y <= paneTop + paneHeight - bBox.height);
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}
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/**
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* @private
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*/
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function destroyLabel() {
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if (label) {
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series.labelBySeries = label.destroy();
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}
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}
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if (series.visible && !series.boosted && points) {
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if (!label) {
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var labelText = series.name;
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if (typeof labelOptions.format === 'string') {
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labelText = format(labelOptions.format, series, chart);
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}
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else if (labelOptions.formatter) {
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labelText = labelOptions.formatter.call(series);
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}
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series.labelBySeries = label = chart.renderer
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.label(labelText, 0, 0, 'connector')
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.addClass('highcharts-series-label ' +
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'highcharts-series-label-' + series.index + ' ' +
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(series.options.className || '') + ' ' +
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colorClass);
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if (!chart.renderer.styledMode) {
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label.css(extend({
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color: onArea ?
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chart.renderer.getContrast(series.color) :
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series.color
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}, labelOptions.style || {}));
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label.attr({
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opacity: chart.renderer.forExport ? 1 : 0,
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stroke: series.color,
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'stroke-width': 1
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});
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}
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// Adapt label sizes to the sum of the data
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if (minFontSize && maxFontSize) {
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label.css({
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fontSize: labelFontSize(series, minFontSize, maxFontSize)
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});
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}
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label
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.attr({
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padding: 0,
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zIndex: 3
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})
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.add();
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}
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bBox = label.getBBox();
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bBox.width = Math.round(bBox.width);
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// Ideal positions are centered above or below a point on right side
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// of chart
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for (i = points.length - 1; i > 0; i -= 1) {
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if (onArea) {
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// Centered
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x = points[i].chartX - bBox.width / 2;
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y = points[i].chartCenterY - bBox.height / 2;
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if (insidePane(x, y, bBox)) {
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best = checkClearPoint(series, x, y, bBox);
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}
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if (best) {
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results.push(best);
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}
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}
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else {
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// Right - up
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x = points[i].chartX + labelDistance;
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y = points[i].chartY - bBox.height - labelDistance;
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if (insidePane(x, y, bBox)) {
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best = checkClearPoint(series, x, y, bBox, true);
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}
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if (best) {
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results.push(best);
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}
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// Right - down
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x = points[i].chartX + labelDistance;
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y = points[i].chartY + labelDistance;
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if (insidePane(x, y, bBox)) {
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best = checkClearPoint(series, x, y, bBox, true);
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}
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if (best) {
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results.push(best);
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}
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// Left - down
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x = points[i].chartX - bBox.width - labelDistance;
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y = points[i].chartY + labelDistance;
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if (insidePane(x, y, bBox)) {
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best = checkClearPoint(series, x, y, bBox, true);
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}
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if (best) {
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results.push(best);
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}
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// Left - up
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x = points[i].chartX - bBox.width - labelDistance;
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y = points[i].chartY - bBox.height - labelDistance;
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if (insidePane(x, y, bBox)) {
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best = checkClearPoint(series, x, y, bBox, true);
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}
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if (best) {
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results.push(best);
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}
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}
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}
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// Brute force, try all positions on the chart in a 16x16 grid
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if (labelOptions.connectorAllowed && !results.length && !onArea) {
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for (x = paneLeft + paneWidth - bBox.width; x >= paneLeft; x -= 16) {
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for (y = paneTop; y < paneTop + paneHeight - bBox.height; y += 16) {
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clearPoint = checkClearPoint(series, x, y, bBox, true);
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if (clearPoint) {
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results.push(clearPoint);
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}
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}
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}
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}
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if (results.length) {
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results.sort(function (a, b) { return b.weight - a.weight; });
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best = results[0];
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chart.boxesToAvoid.push({
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left: best.x,
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right: best.x + bBox.width,
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top: best.y,
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bottom: best.y + bBox.height
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});
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// Move it if needed
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var dist = Math.sqrt(Math.pow(Math.abs(best.x - (label.x || 0)), 2) +
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Math.pow(Math.abs(best.y - (label.y || 0)), 2));
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if (dist && series.labelBySeries) {
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// Move fast and fade in - pure animation movement is
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// distractive...
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var attr = {
|
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opacity: chart.renderer.forExport ? 1 : 0,
|
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x: best.x,
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y: best.y
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}, anim = {
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opacity: 1
|
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};
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||||
// ... unless we're just moving a short distance
|
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if (dist <= 10) {
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anim = {
|
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x: attr.x,
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y: attr.y
|
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};
|
||||
attr = {};
|
||||
}
|
||||
// Default initial animation to a fraction of the series
|
||||
// animation (#9396)
|
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var animationOptions = void 0;
|
||||
if (isNew) {
|
||||
animationOptions = animObject(series.options.animation);
|
||||
// @todo: Safely remove any cast after merging #13005
|
||||
animationOptions.duration *= 0.2;
|
||||
}
|
||||
series.labelBySeries
|
||||
.attr(extend(attr, {
|
||||
anchorX: best.connectorPoint &&
|
||||
best.connectorPoint.plotX + paneLeft,
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||||
anchorY: best.connectorPoint &&
|
||||
best.connectorPoint.plotY + paneTop
|
||||
}))
|
||||
.animate(anim, animationOptions);
|
||||
// Record closest point to stick to for sync redraw
|
||||
series.options.kdNow = true;
|
||||
series.buildKDTree();
|
||||
var closest = series.searchPoint({
|
||||
chartX: best.x,
|
||||
chartY: best.y
|
||||
}, true);
|
||||
if (closest) {
|
||||
label.closest = [
|
||||
closest,
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||||
best.x - (closest.plotX || 0),
|
||||
best.y - (closest.plotY || 0)
|
||||
];
|
||||
}
|
||||
}
|
||||
}
|
||||
else {
|
||||
destroyLabel();
|
||||
}
|
||||
}
|
||||
else {
|
||||
destroyLabel();
|
||||
}
|
||||
});
|
||||
fireEvent(chart, 'afterDrawSeriesLabels');
|
||||
// console.timeEnd('drawSeriesLabels');
|
||||
}
|
||||
/**
|
||||
* Points to avoid. In addition to actual data points, the label should avoid
|
||||
* interpolated positions.
|
||||
*
|
||||
* @private
|
||||
* @function Highcharts.Series#getPointsOnGraph
|
||||
*/
|
||||
function getPointsOnGraph(series) {
|
||||
if (!series.xAxis && !series.yAxis) {
|
||||
return;
|
||||
}
|
||||
var distance = 16, points = series.points, interpolated = [], graph = series.graph || series.area, node = graph.element, inverted = series.chart.inverted, xAxis = series.xAxis, yAxis = series.yAxis, paneLeft = inverted ? yAxis.pos : xAxis.pos, paneTop = inverted ? xAxis.pos : yAxis.pos, onArea = pick(series.options.label.onArea, !!series.area), translatedThreshold = yAxis.getThreshold(series.options.threshold), grid = {};
|
||||
var point, last, i, deltaX, deltaY, delta, len, n, j, d;
|
||||
/**
|
||||
* Push the point to the interpolated points, but only if that position in
|
||||
* the grid has not been occupied. As a performance optimization, we divide
|
||||
* the plot area into a grid and only add one point per series (#9815).
|
||||
* @private
|
||||
*/
|
||||
function pushDiscrete(point) {
|
||||
var cellSize = 8, key = Math.round(point.plotX / cellSize) + ',' +
|
||||
Math.round(point.plotY / cellSize);
|
||||
if (!grid[key]) {
|
||||
grid[key] = 1;
|
||||
interpolated.push(point);
|
||||
}
|
||||
}
|
||||
// For splines, get the point at length (possible caveat: peaks are not
|
||||
// correctly detected)
|
||||
if (series.getPointSpline &&
|
||||
(node.getPointAtLength) &&
|
||||
!onArea &&
|
||||
// Not performing well on complex series, node.getPointAtLength is too
|
||||
// heavy (#9815)
|
||||
points.length < series.chart.plotSizeX / distance) {
|
||||
// If it is animating towards a path definition, use that briefly, and
|
||||
// reset
|
||||
if (graph.toD) {
|
||||
d = graph.attr('d');
|
||||
graph.attr({ d: graph.toD });
|
||||
}
|
||||
len = node.getTotalLength();
|
||||
for (i = 0; i < len; i += distance) {
|
||||
point = node.getPointAtLength(i);
|
||||
pushDiscrete({
|
||||
chartX: paneLeft + point.x,
|
||||
chartY: paneTop + point.y,
|
||||
plotX: point.x,
|
||||
plotY: point.y
|
||||
});
|
||||
}
|
||||
if (d) {
|
||||
graph.attr({ d: d });
|
||||
}
|
||||
// Last point
|
||||
point = points[points.length - 1];
|
||||
point.chartX = paneLeft + point.plotX;
|
||||
point.chartY = paneTop + point.plotY;
|
||||
pushDiscrete(point);
|
||||
// Interpolate
|
||||
}
|
||||
else {
|
||||
len = points.length;
|
||||
for (i = 0; i < len; i += 1) {
|
||||
point = points[i];
|
||||
last = points[i - 1];
|
||||
// Absolute coordinates so we can compare different panes
|
||||
point.chartX = paneLeft + point.plotX;
|
||||
point.chartY = paneTop + point.plotY;
|
||||
if (onArea) {
|
||||
// Vertically centered inside area
|
||||
point.chartCenterY = paneTop + (point.plotY +
|
||||
pick(point.yBottom, translatedThreshold)) / 2;
|
||||
}
|
||||
// Add interpolated points
|
||||
if (i > 0) {
|
||||
deltaX = Math.abs(point.chartX - last.chartX);
|
||||
deltaY = Math.abs(point.chartY - last.chartY);
|
||||
delta = Math.max(deltaX, deltaY);
|
||||
if (delta > distance) {
|
||||
n = Math.ceil(delta / distance);
|
||||
for (j = 1; j < n; j += 1) {
|
||||
pushDiscrete({
|
||||
chartX: last.chartX +
|
||||
(point.chartX - last.chartX) *
|
||||
(j / n),
|
||||
chartY: last.chartY +
|
||||
(point.chartY - last.chartY) *
|
||||
(j / n),
|
||||
chartCenterY: last.chartCenterY +
|
||||
(point.chartCenterY -
|
||||
last.chartCenterY) * (j / n),
|
||||
plotX: last.plotX +
|
||||
(point.plotX - last.plotX) *
|
||||
(j / n),
|
||||
plotY: last.plotY +
|
||||
(point.plotY - last.plotY) *
|
||||
(j / n)
|
||||
});
|
||||
}
|
||||
}
|
||||
}
|
||||
// Add the real point in order to find positive and negative peaks
|
||||
if (isNumber(point.plotY)) {
|
||||
pushDiscrete(point);
|
||||
}
|
||||
}
|
||||
}
|
||||
// Get the bounding box so we can do a quick check first if the bounding
|
||||
// boxes overlap.
|
||||
/*
|
||||
interpolated.bBox = node.getBBox();
|
||||
interpolated.bBox.x += paneLeft;
|
||||
interpolated.bBox.y += paneTop;
|
||||
*/
|
||||
return interpolated;
|
||||
}
|
||||
/**
|
||||
* Overridable function to return series-specific font sizes for the labels. By
|
||||
* default it returns bigger font sizes for series with the greater sum of y
|
||||
* values.
|
||||
* @private
|
||||
*/
|
||||
function labelFontSize(series, minFontSize, maxFontSize) {
|
||||
return minFontSize + ((series.sum / series.chart.labelSeriesMaxSum) *
|
||||
(maxFontSize - minFontSize)) + 'px';
|
||||
}
|
||||
/**
|
||||
* Prepare drawing series labels.
|
||||
* @private
|
||||
*/
|
||||
function onChartRedraw(e) {
|
||||
if (this.renderer) {
|
||||
var chart_1 = this;
|
||||
var delay_1 = animObject(chart_1.renderer.globalAnimation).duration;
|
||||
chart_1.labelSeries = [];
|
||||
chart_1.labelSeriesMaxSum = 0;
|
||||
U.clearTimeout(chart_1.seriesLabelTimer);
|
||||
// Which series should have labels
|
||||
chart_1.series.forEach(function (series) {
|
||||
var options = series.options.label, label = series.labelBySeries, closest = label && label.closest;
|
||||
if (options.enabled &&
|
||||
series.visible &&
|
||||
(series.graph || series.area) &&
|
||||
!series.boosted) {
|
||||
chart_1.labelSeries.push(series);
|
||||
if (options.minFontSize && options.maxFontSize) {
|
||||
series.sum = series.yData.reduce(function (pv, cv) {
|
||||
return (pv || 0) + (cv || 0);
|
||||
}, 0);
|
||||
chart_1.labelSeriesMaxSum = Math.max(chart_1.labelSeriesMaxSum, series.sum);
|
||||
}
|
||||
// The labels are processing heavy, wait until the animation is
|
||||
// done
|
||||
if (e.type === 'load') {
|
||||
delay_1 = Math.max(delay_1, animObject(series.options.animation).duration);
|
||||
}
|
||||
// Keep the position updated to the axis while redrawing
|
||||
if (closest) {
|
||||
if (typeof closest[0].plotX !== 'undefined') {
|
||||
label.animate({
|
||||
x: closest[0].plotX + closest[1],
|
||||
y: closest[0].plotY + closest[2]
|
||||
});
|
||||
}
|
||||
else {
|
||||
label.attr({ opacity: 0 });
|
||||
}
|
||||
}
|
||||
}
|
||||
});
|
||||
chart_1.seriesLabelTimer = syncTimeout(function () {
|
||||
if (chart_1.series && chart_1.labelSeries) { // #7931, chart destroyed
|
||||
drawSeriesLabels(chart_1);
|
||||
}
|
||||
}, chart_1.renderer.forExport || !delay_1 ? 0 : delay_1);
|
||||
}
|
||||
}
|
||||
/**
|
||||
* General symbol definition for labels with connector.
|
||||
* @private
|
||||
*/
|
||||
function symbolConnector(x, y, w, h, options) {
|
||||
var anchorX = options && options.anchorX, anchorY = options && options.anchorY;
|
||||
var path, yOffset, lateral = w / 2;
|
||||
if (isNumber(anchorX) && isNumber(anchorY)) {
|
||||
path = [['M', anchorX, anchorY]];
|
||||
// Prefer 45 deg connectors
|
||||
yOffset = y - anchorY;
|
||||
if (yOffset < 0) {
|
||||
yOffset = -h - yOffset;
|
||||
}
|
||||
if (yOffset < w) {
|
||||
lateral = anchorX < x + (w / 2) ? yOffset : w - yOffset;
|
||||
}
|
||||
// Anchor below label
|
||||
if (anchorY > y + h) {
|
||||
path.push(['L', x + lateral, y + h]);
|
||||
// Anchor above label
|
||||
}
|
||||
else if (anchorY < y) {
|
||||
path.push(['L', x + lateral, y]);
|
||||
// Anchor left of label
|
||||
}
|
||||
else if (anchorX < x) {
|
||||
path.push(['L', x, y + h / 2]);
|
||||
// Anchor right of label
|
||||
}
|
||||
else if (anchorX > x + w) {
|
||||
path.push(['L', x + w, y + h / 2]);
|
||||
}
|
||||
}
|
||||
return path || [];
|
||||
}
|
||||
/* *
|
||||
*
|
||||
* Default Export
|
||||
*
|
||||
* */
|
||||
var SeriesLabel = {
|
||||
compose: compose
|
||||
};
|
||||
export default SeriesLabel;
|
||||
/* *
|
||||
*
|
||||
* API Declarations
|
||||
*
|
||||
* */
|
||||
/**
|
||||
* Containing the position of a box that should be avoided by labels.
|
||||
*
|
||||
* @interface Highcharts.LabelIntersectBoxObject
|
||||
*/ /**
|
||||
* @name Highcharts.LabelIntersectBoxObject#bottom
|
||||
* @type {number}
|
||||
*/ /**
|
||||
* @name Highcharts.LabelIntersectBoxObject#left
|
||||
* @type {number}
|
||||
*/ /**
|
||||
* @name Highcharts.LabelIntersectBoxObject#right
|
||||
* @type {number}
|
||||
*/ /**
|
||||
* @name Highcharts.LabelIntersectBoxObject#top
|
||||
* @type {number}
|
||||
*/
|
||||
(''); // keeps doclets above in JS file
|
||||
Reference in New Issue
Block a user