source/Repid.MvcApplication/Content/utility/highcharts/js/highcharts-3d.src.js

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// ==ClosureCompiler==
// @compilation_level SIMPLE_OPTIMIZATIONS

/**
 * @license Highcharts JS v4.2.4 (2016-04-14)
 *
 * 3D features for Highcharts JS
 *
 * @license: www.highcharts.com/license
 */

(function (factory) {
    if (typeof module === 'object' && module.exports) {
        module.exports = factory;
    } else {
        factory(Highcharts);
    }
}(function (Highcharts) {
/**
        Shorthands for often used function
    */
    var animObject = Highcharts.animObject,
        each = Highcharts.each,
        extend = Highcharts.extend,
        inArray = Highcharts.inArray,
        merge = Highcharts.merge,
        pick = Highcharts.pick,
        wrap = Highcharts.wrap;
    /**
     *    Mathematical Functionility
     */
    var PI = Math.PI,
        deg2rad = (PI / 180), // degrees to radians
        sin = Math.sin,
        cos = Math.cos,
        round = Math.round;

    /**
     * Transforms a given array of points according to the angles in chart.options.
     * Parameters:
     *        - points: the array of points
     *        - chart: the chart
     *        - insidePlotArea: wether to verifiy the points are inside the plotArea
     * Returns:
     *        - an array of transformed points
     */
    function perspective(points, chart, insidePlotArea) {
        var options3d = chart.options.chart.options3d,
            inverted = false,
            origin,
            scale = chart.scale3d || 1;

        if (insidePlotArea) {
            inverted = chart.inverted;
            origin = {
                x: chart.plotWidth / 2,
                y: chart.plotHeight / 2,
                z: options3d.depth / 2,
                vd: pick(options3d.depth, 1) * pick(options3d.viewDistance, 0)
            };