Icard/angular-clarity-master(work.../node_modules/highcharts/es-modules/Series/InterpolationUtilities.js

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2024-07-16 14:55:36 +00:00
/* *
*
* (c) 2010-2024 Hubert Kozik
*
* License: www.highcharts.com/license
*
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
*
* */
'use strict';
import H from '../Core/Globals.js';
const { doc } = H;
import U from '../Core/Utilities.js';
const { defined, pick } = U;
/* *
*
* Functions
*
* */
/**
* Find color of point based on color axis.
*
* @function Highcharts.colorFromPoint
*
* @param {number | null} value
* Value to find corresponding color on the color axis.
*
* @param {Highcharts.Point} point
* Point to find it's color from color axis.
*
* @return {number[]}
* Color in RGBa array.
*/
function colorFromPoint(value, point) {
const colorAxis = point.series.colorAxis;
if (colorAxis) {
const rgba = (colorAxis.toColor(value || 0, point)
.split(')')[0]
.split('(')[1]
.split(',')
.map((s) => pick(parseFloat(s), parseInt(s, 10))));
rgba[3] = pick(rgba[3], 1.0) * 255;
if (!defined(value) || !point.visible) {
rgba[3] = 0;
}
return rgba;
}
return [0, 0, 0, 0];
}
/**
* Method responsible for creating a canvas for interpolation image.
* @private
*/
function getContext(series) {
const { canvas, context } = series;
if (canvas && context) {
context.clearRect(0, 0, canvas.width, canvas.height);
}
else {
series.canvas = doc.createElement('canvas');
series.context = series.canvas.getContext('2d', {
willReadFrequently: true
}) || void 0;
return series.context;
}
return context;
}
const InterpolationUtilities = {
colorFromPoint,
getContext
};
export default InterpolationUtilities;