classes/artifacts/ffms_war_exploded/Highcharts-5.0.12/code/modules/boost.src.js

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/**
 * @license Highcharts JS v5.0.12 (2017-05-24)
 * Boost module
 *
 * (c) 2010-2017 Highsoft AS
 * Author: Torstein Honsi
 *
 * License: www.highcharts.com/license
 */
'use strict';
(function(factory) {
    if (typeof module === 'object' && module.exports) {
        module.exports = factory;
    } else {
        factory(Highcharts);
    }
}(function(Highcharts) {
    (function(H) {
        /**
         * License: www.highcharts.com/license
         * Author: Christer Vasseng, Torstein Honsi
         * 
         * This is an experimental Highcharts module that draws long data series on a canvas
         * in order to increase performance of the initial load time and tooltip responsiveness.
         *
         * Compatible with WebGL compatible browsers (not IE < 11).
         *
         * Development plan
         * - Column range.
         * - Check how it works with Highstock and data grouping. Currently it only works when navigator.adaptToUpdatedData
         *   is false. It is also recommended to set scrollbar.liveRedraw to false.
         * - Check inverted charts.
         * - Chart callback should be async after last series is drawn. (But not necessarily, we don't do
        	 that with initial series animation).
         *
         * If this module is taken in as part of the core
         * - All the loading logic should be merged with core. Update styles in the core.
         * - Most of the method wraps should probably be added directly in parent methods.
         *
         * Notes for boost mode
         * - Area lines are not drawn
         * - Lines are not drawn on scatter charts
         * - Zones and negativeColor don't work
         * - Columns are always one pixel wide. Don't set the threshold too low.
         * - Disable animations
         * - Marker shapes are not supported: markers will always be circles
         *
         * Optimizing tips for users
         * - Set extremes (min, max) explicitly on the axes in order for Highcharts to avoid computing extremes.
         * - Set enableMouseTracking to false on the series to improve total rendering time.
         * - The default threshold is set based on one series. If you have multiple, dense series, the combined
         *   number of points drawn gets higher, and you may want to set the threshold lower in order to 
         *   use optimizations.
         * - If drawing large scatter charts, it's beneficial to set the marker radius to a value
         *   less than 1. This is to add additional spacing to make the chart more readable.
         * - If the value increments on both the X and Y axis aren't small, consider setting
         *	 useGPUTranslations to true on the boost settings object. If you do this and
         *	 the increments are small (e.g. datetime axis with small time increments)
         *	 it may cause rendering issues due to floating point rounding errors,
         *	 so your millage may vary.