@progress/kendo-charts/dist/es2015/core/pattern.js

Kendo UI platform-independent Charts library

import { drawing } from '@progress/kendo-drawing';
import { isFunction } from './../common';

const { dotsPattern, verticalStripesPattern, crosshatchPattern, diagonalStripesPattern, gridPattern } = drawing;

const patternMap = {
    dots: dotsPattern,
    verticalStripes: verticalStripesPattern,
    crosshatch: crosshatchPattern,
    diagonalStripes: diagonalStripesPattern,
    grid: gridPattern
};

export function evaluatePattern(options, point) {
    return isFunction(options) ? options(point) : options;
}

export function createPatternFill(options, fill, point) {
    const patternOptions = evaluatePattern(options, point);
    const pattern = patternOptions && patternMap[patternOptions.type];

    return pattern ? pattern(Object.assign({}, fill, patternOptions)) : fill;
}