tupali/librerias/gantt/code/es-modules/masters/modules/boost.src.js
2020-05-23 15:45:54 -05:00

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4.6 KiB
JavaScript

/**
* @license Highcharts JS v8.1.0 (2020-05-05)
* @module highcharts/modules/boost
* @requires highcharts
*
* Boost module
*
* (c) 2010-2019 Highsoft AS
* Author: Torstein Honsi
*
* License: www.highcharts.com/license
*
* This is a 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).
*
* 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
* - Dash styles are not rendered on lines.
* - 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, except
* heatmap series, where markers are always rectangles.
*
* 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.
*
* Settings
* There are two ways of setting the boost threshold:
* - Per series: boost based on number of points in individual series
* - Per chart: boost based on the number of series
*
* To set the series boost threshold, set seriesBoostThreshold on the chart
* object.
* To set the series-specific threshold, set boostThreshold on the series
* object.
*
* In addition, the following can be set in the boost object:
* {
* //Wether or not to use alpha blending
* useAlpha: boolean - default: true
* //Set to true to perform translations on the GPU.
* //Much faster, but may cause rendering issues
* //when using values far from 0 due to floating point
* //rounding issues
* useGPUTranslations: boolean - default: false
* //Use pre-allocated buffers, much faster,
* //but may cause rendering issues with some data sets
* usePreallocated: boolean - default: false
* }
*/
/* *
* Options for the Boost module. The Boost module allows certain series types
* to be rendered by WebGL instead of the default SVG. This allows hundreds of
* thousands of data points to be rendered in milliseconds. In addition to the
* WebGL rendering it saves time by skipping processing and inspection of the
* data wherever possible. This introduces some limitations to what features are
* available in boost mode. See [the docs](
* https://www.highcharts.com/docs/advanced-chart-features/boost-module) for
* details.
*
* In addition to the global `boost` option, each series has a
* [boostThreshold](#plotOptions.series.boostThreshold) that defines when the
* boost should kick in.
*
* Requires the `modules/boost.js` module.
*
* @sample {highstock} highcharts/boost/line-series-heavy-stock
* Stock chart
* @sample {highstock} highcharts/boost/line-series-heavy-dynamic
* Dynamic stock chart
* @sample highcharts/boost/line
* Line chart
* @sample highcharts/boost/line-series-heavy
* Line chart with hundreds of series
* @sample highcharts/boost/scatter
* Scatter chart
* @sample highcharts/boost/area
* Area chart
* @sample highcharts/boost/arearange
* Area range chart
* @sample highcharts/boost/column
* Column chart
* @sample highcharts/boost/columnrange
* Column range chart
* @sample highcharts/boost/bubble
* Bubble chart
* @sample highcharts/boost/heatmap
* Heat map
* @sample highcharts/boost/treemap
* Tree map
*
* @product highcharts highstock
* @apioption boost
* */
'use strict';
import '../../modules/boost/boost.js';