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/* *
*
* Copyright (c) 2019-2021 Highsoft AS
*
* Boost module: stripped-down renderer for higher performance
*
* License: highcharts.com/license
*
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
*
* */
'use strict';
import BoostableMap from './BoostableMap.js';
import Boostables from './Boostables.js';
import BoostChart from './BoostChart.js';
var getBoostClipRect = BoostChart.getBoostClipRect, isChartSeriesBoosting = BoostChart.isChartSeriesBoosting;
import D from '../../Core/Defaults.js';
var getOptions = D.getOptions;
import H from '../../Core/Globals.js';
var doc = H.doc, noop = H.noop, win = H.win;
import U from '../../Core/Utilities.js';
var addEvent = U.addEvent, error = U.error, extend = U.extend, fireEvent = U.fireEvent, isArray = U.isArray, isNumber = U.isNumber, pick = U.pick, wrap = U.wrap;
import WGLRenderer from './WGLRenderer.js';
/* *
*
* Constants
*
* */
var CHUNK_SIZE = 3000;
var composedClasses = [];
/* *
*
* Variables
*
* */
var index, mainCanvas;
/* *
*
* Functions
*
* */
/**
* @private
*/
function allocateIfNotSeriesBoosting(renderer, series) {
var boost = series.boost;
if (renderer &&
boost &&
boost.target &&
boost.canvas &&
!isChartSeriesBoosting(series.chart)) {
renderer.allocateBufferForSingleSeries(series);
}
}
/**
* Return true if ths boost.enabled option is true
*
* @private
* @param {Highcharts.Chart} chart
* The chart
* @return {boolean}
* True, if boost is enabled.
*/
function boostEnabled(chart) {
return pick((chart &&
chart.options &&
chart.options.boost &&
chart.options.boost.enabled), true);
}
/**
* @private
*/
function compose(SeriesClass, seriesTypes, wglMode) {
if (composedClasses.indexOf(SeriesClass) === -1) {
composedClasses.push(SeriesClass);
addEvent(SeriesClass, 'destroy', onSeriesDestroy);
addEvent(SeriesClass, 'hide', onSeriesHide);
var seriesProto_1 = SeriesClass.prototype;
if (wglMode) {
seriesProto_1.renderCanvas = seriesRenderCanvas;
}
wrap(seriesProto_1, 'getExtremes', wrapSeriesGetExtremes);
wrap(seriesProto_1, 'processData', wrapSeriesProcessData);
wrap(seriesProto_1, 'searchPoint', wrapSeriesSearchPoint);
[
'translate',
'generatePoints',
'drawTracker',
'drawPoints',
'render'
].forEach(function (method) {
return wrapSeriesFunctions(seriesProto_1, seriesTypes, method);
});
}
if (composedClasses.indexOf(getOptions) === -1) {
composedClasses.push(getOptions);
var plotOptions_1 = getOptions().plotOptions;
// Set default options
Boostables.forEach(function (type) {
var typePlotOptions = plotOptions_1[type];
if (typePlotOptions) {
typePlotOptions.boostThreshold = 5000;
typePlotOptions.boostData = [];
seriesTypes[type].prototype.fillOpacity = true;
}
});
}
if (wglMode) {
var AreaSeries = seriesTypes.area, AreaSplineSeries = seriesTypes.areaspline, BubbleSeries = seriesTypes.bubble, ColumnSeries = seriesTypes.column, HeatmapSeries = seriesTypes.heatmap, ScatterSeries = seriesTypes.scatter, TreemapSeries = seriesTypes.treemap;
if (AreaSeries &&
composedClasses.indexOf(AreaSeries) === -1) {
composedClasses.push(AreaSeries);
extend(AreaSeries.prototype, {
fill: true,
fillOpacity: true,
sampling: true
});
}
if (AreaSplineSeries &&
composedClasses.indexOf(AreaSplineSeries) === -1) {
composedClasses.push(AreaSplineSeries);
extend(AreaSplineSeries.prototype, {
fill: true,
fillOpacity: true,
sampling: true
});
}
if (BubbleSeries &&
composedClasses.indexOf(BubbleSeries) === -1) {
composedClasses.push(BubbleSeries);
var bubbleProto_1 = BubbleSeries.prototype;
// By default, the bubble series does not use the KD-tree, so force
// it to.
delete bubbleProto_1.buildKDTree;
// seriesTypes.bubble.prototype.directTouch = false;
// Needed for markers to work correctly
wrap(bubbleProto_1, 'markerAttribs', function (proceed) {
if (this.boosted) {
return false;
}
return proceed.apply(this, [].slice.call(arguments, 1));
});
}
if (ColumnSeries &&
composedClasses.indexOf(ColumnSeries) === -1) {
composedClasses.push(ColumnSeries);
extend(ColumnSeries.prototype, {
fill: true,
sampling: true
});
}
if (ScatterSeries &&
composedClasses.indexOf(ScatterSeries) === -1) {
composedClasses.push(ScatterSeries);
ScatterSeries.prototype.fill = true;
}
// We need to handle heatmaps separatly, since we can't perform the
// size/color calculations in the shader easily.
// @todo This likely needs future optimization.
[HeatmapSeries, TreemapSeries].forEach(function (SC) {
if (SC && composedClasses.indexOf(SC) === -1) {
composedClasses.push(SC);
wrap(SC.prototype, 'drawPoints', wrapSeriesDrawPoints);
}
});
}
return SeriesClass;
}
/**
* Create a canvas + context and attach it to the target
*
* @private
* @function createAndAttachRenderer
*
* @param {Highcharts.Chart} chart
* the chart
*
* @param {Highcharts.Series} series
* the series
*
* @return {Highcharts.BoostGLRenderer}
* the canvas renderer
*/
function createAndAttachRenderer(chart, series) {
var ChartClass = chart.constructor, targetGroup = chart.seriesGroup || series.group, alpha = 1;
var width = chart.chartWidth, height = chart.chartHeight, target = chart, foSupported = typeof SVGForeignObjectElement !== 'undefined';
if (isChartSeriesBoosting(chart)) {
target = chart;
}
else {
target = series;
}
var boost = target.boost =
target.boost ||
{};
// Support for foreignObject is flimsy as best.
// IE does not support it, and Chrome has a bug which messes up
// the canvas draw order.
// As such, we force the Image fallback for now, but leaving the
// actual Canvas path in-place in case this changes in the future.
foSupported = false;
if (!mainCanvas) {
mainCanvas = doc.createElement('canvas');
}
if (!boost.target) {
boost.canvas = mainCanvas;
// Fall back to image tag if foreignObject isn't supported,
// or if we're exporting.
if (chart.renderer.forExport || !foSupported) {
target.renderTarget = boost.target = chart.renderer.image('', 0, 0, width, height)
.addClass('highcharts-boost-canvas')
.add(targetGroup);
boost.clear = function () {
boost.target.attr({
// Insert a blank pixel (#17182)
/* eslint-disable-next-line max-len*/
href: 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII='
});
};
boost.copy = function () {
boost.resize();
boost.target.attr({
href: boost.canvas.toDataURL('image/png')
});
};
}
else {
boost.targetFo = chart.renderer
.createElement('foreignObject')
.add(targetGroup);
target.renderTarget = boost.target =
doc.createElement('canvas');
boost.targetCtx = boost.target.getContext('2d');
boost.targetFo.element.appendChild(boost.target);
boost.clear = function () {
boost.target.width = boost.canvas.width;
boost.target.height = boost.canvas.height;
};
boost.copy = function () {
boost.target.width = boost.canvas.width;
boost.target.height = boost.canvas.height;
boost.targetCtx.drawImage(boost.canvas, 0, 0);
};
}
boost.resize = function () {
width = chart.chartWidth;
height = chart.chartHeight;
(boost.targetFo || boost.target)
.attr({
x: 0,
y: 0,
width: width,
height: height
})
.css({
pointerEvents: 'none',
mixedBlendMode: 'normal',
opacity: alpha
});
if (target instanceof ChartClass) {
target.boost.markerGroup.translate(chart.plotLeft, chart.plotTop);
}
};
boost.clipRect = chart.renderer.clipRect();
(boost.targetFo || boost.target).clip(boost.clipRect);
if (target instanceof ChartClass) {
target.boost.markerGroup = target.renderer
.g()
.add(targetGroup)
.translate(series.xAxis.pos, series.yAxis.pos);
}
}
boost.canvas.width = width;
boost.canvas.height = height;
if (boost.clipRect) {
boost.clipRect.attr(getBoostClipRect(chart, target));
}
boost.resize();
boost.clear();
if (!boost.wgl) {
boost.wgl = new WGLRenderer(function (wgl) {
if (wgl.settings.debug.timeBufferCopy) {
console.time('buffer copy'); // eslint-disable-line no-console
}
boost.copy();
if (wgl.settings.debug.timeBufferCopy) {
console.timeEnd('buffer copy'); // eslint-disable-line no-console
}
});
if (!boost.wgl.init(boost.canvas)) {
// The OGL renderer couldn't be inited.
// This likely means a shader error as we wouldn't get to this point
// if there was no WebGL support.
error('[highcharts boost] - unable to init WebGL renderer');
}
// target.ogl.clear();
boost.wgl.setOptions(chart.options.boost || {});
if (target instanceof ChartClass) {
boost.wgl.allocateBuffer(chart);
}
}
boost.wgl.setSize(width, height);
return boost.wgl;
}
/**
* If implemented in the core, parts of this can probably be
* shared with other similar methods in Highcharts.
* @private
* @function Highcharts.Series#destroyGraphics
*/
function destroyGraphics(series) {
var points = series.points;
if (points) {
var point = void 0, i = void 0;
for (i = 0; i < points.length; i = i + 1) {
point = points[i];
if (point && point.destroyElements) {
point.destroyElements(); // #7557
}
}
}
['graph', 'area', 'tracker'].forEach(function (prop) {
var seriesProp = series[prop];
if (seriesProp) {
series[prop] = seriesProp.destroy();
}
});
var zonesSeries = series;
if (zonesSeries.getZonesGraphs) {
var props = zonesSeries.getZonesGraphs([['graph', 'highcharts-graph']]);
props.forEach(function (prop) {
var zoneGraph = zonesSeries[prop[0]];
if (zoneGraph) {
zonesSeries[prop[0]] = zoneGraph.destroy();
}
});
}
}
/**
* An "async" foreach loop. Uses a setTimeout to keep the loop from blocking the
* UI thread.
*
* @private
* @param {Array<unknown>} arr
* The array to loop through.
* @param {Function} fn
* The callback to call for each item.
* @param {Function} finalFunc
* The callback to call when done.
* @param {number} [chunkSize]
* The number of iterations per timeout.
* @param {number} [i]
* The current index.
* @param {boolean} [noTimeout]
* Set to true to skip timeouts.
*/
function eachAsync(arr, fn, finalFunc, chunkSize, i, noTimeout) {
i = i || 0;
chunkSize = chunkSize || CHUNK_SIZE;
var threshold = i + chunkSize;
var proceed = true;
while (proceed && i < threshold && i < arr.length) {
proceed = fn(arr[i], i);
++i;
}
if (proceed) {
if (i < arr.length) {
if (noTimeout) {
eachAsync(arr, fn, finalFunc, chunkSize, i, noTimeout);
}
else if (win.requestAnimationFrame) {
// If available, do requestAnimationFrame - shaves off a few ms
win.requestAnimationFrame(function () {
eachAsync(arr, fn, finalFunc, chunkSize, i);
});
}
else {
setTimeout(eachAsync, 0, arr, fn, finalFunc, chunkSize, i);
}
}
else if (finalFunc) {
finalFunc();
}
}
}
/**
* Enter boost mode and apply boost-specific properties.
* @private
* @function Highcharts.Series#enterBoost
*/
function enterBoost(series) {
series.boost = series.boost || {
// faster than a series bind:
getPoint: (function (bp) { return getPoint(series, bp); })
};
var alteredByBoost = series.boost.altered = [];
// Save the original values, including whether it was an own
// property or inherited from the prototype.
['allowDG', 'directTouch', 'stickyTracking'].forEach(function (prop) {
alteredByBoost.push({
prop: prop,
val: series[prop],
own: Object.hasOwnProperty.call(series, prop)
});
});
series.allowDG = false;
series.directTouch = false;
series.stickyTracking = true;
// Prevent animation when zooming in on boosted series(#13421).
series.finishedAnimating = true;
// Hide series label if any
if (series.labelBySeries) {
series.labelBySeries = series.labelBySeries.destroy();
}
}
/**
* Exit from boost mode and restore non-boost properties.
* @private
* @function Highcharts.Series#exitBoost
*/
function exitBoost(series) {
var boost = series.boost;
// Reset instance properties and/or delete instance properties and go back
// to prototype
if (boost) {
(boost.altered || []).forEach(function (setting) {
if (setting.own) {
series[setting.prop] = setting.val;
}
else {
// Revert to prototype
delete series[setting.prop];
}
});
// Clear previous run
if (boost.clear) {
boost.clear();
}
}
}
/**
* @private
* @function Highcharts.Series#hasExtremes
*/
function hasExtremes(series, checkX) {
var options = series.options, data = options.data, xAxis = series.xAxis && series.xAxis.options, yAxis = series.yAxis && series.yAxis.options, colorAxis = series.colorAxis && series.colorAxis.options;
return data.length > (options.boostThreshold || Number.MAX_VALUE) &&
// Defined yAxis extremes
isNumber(yAxis.min) &&
isNumber(yAxis.max) &&
// Defined (and required) xAxis extremes
(!checkX ||
(isNumber(xAxis.min) && isNumber(xAxis.max))) &&
// Defined (e.g. heatmap) colorAxis extremes
(!colorAxis ||
(isNumber(colorAxis.min) && isNumber(colorAxis.max)));
}
/**
* Extend series.destroy to also remove the fake k-d-tree points (#5137).
* Normally this is handled by Series.destroy that calls Point.destroy,
* but the fake search points are not registered like that.
* @private
*/
function onSeriesDestroy() {
var series = this, chart = series.chart;
if (chart.boost &&
chart.boost.markerGroup === series.markerGroup) {
series.markerGroup = null;
}
if (chart.hoverPoints) {
chart.hoverPoints = chart.hoverPoints.filter(function (point) {
return point.series === series;
});
}
if (chart.hoverPoint && chart.hoverPoint.series === series) {
chart.hoverPoint = null;
}
}
/**
* @private
*/
function onSeriesHide() {
var boost = this.boost;
if (boost && boost.canvas && boost.target) {
if (boost.wgl) {
boost.wgl.clear();
}
if (boost.clear) {
boost.clear();
}
}
}
/**
* Performs the actual render if the renderer is
* attached to the series.
* @private
*/
function renderIfNotSeriesBoosting(series) {
var boost = series.boost;
if (boost &&
boost.canvas &&
boost.target &&
boost.wgl &&
!isChartSeriesBoosting(series.chart)) {
boost.wgl.render(series.chart);
}
}
/**
* Return a full Point object based on the index.
* The boost module uses stripped point objects for performance reasons.
* @private
* @param {object|Highcharts.Point} boostPoint
* A stripped-down point object
* @return {Highcharts.Point}
* A Point object as per https://api.highcharts.com/highcharts#Point
*/
function getPoint(series, boostPoint) {
var seriesOptions = series.options, xAxis = series.xAxis, PointClass = series.pointClass;
if (boostPoint instanceof PointClass) {
return boostPoint;
}
var xData = (series.xData ||
seriesOptions.xData ||
series.processedXData ||
false), point = (new PointClass()).init(series, series.options.data[boostPoint.i], xData ? xData[boostPoint.i] : void 0);
point.category = pick(xAxis.categories ?
xAxis.categories[point.x] :
point.x, // @todo simplify
point.x);
point.dist = boostPoint.dist;
point.distX = boostPoint.distX;
point.plotX = boostPoint.plotX;
point.plotY = boostPoint.plotY;
point.index = boostPoint.i;
point.percentage = boostPoint.percentage;
point.isInside = series.isPointInside(point);
return point;
}
/**
* @private
* @function Highcharts.Series#renderCanvas
*/
function seriesRenderCanvas() {
var _this = this;
var options = this.options || {}, chart = this.chart, xAxis = this.xAxis, yAxis = this.yAxis, xData = options.xData || this.processedXData, yData = options.yData || this.processedYData, rawData = options.data, xExtremes = xAxis.getExtremes(), xMin = xExtremes.min, xMax = xExtremes.max, yExtremes = yAxis.getExtremes(), yMin = yExtremes.min, yMax = yExtremes.max, pointTaken = {}, sampling = !!this.sampling, enableMouseTracking = options.enableMouseTracking !== false, threshold = options.threshold, isRange = this.pointArrayMap &&
this.pointArrayMap.join(',') === 'low,high', isStacked = !!options.stacking, cropStart = this.cropStart || 0, requireSorting = this.requireSorting, useRaw = !xData, compareX = options.findNearestPointBy === 'x', xDataFull = (this.xData ||
this.options.xData ||
this.processedXData ||
false);
var renderer = false, lastClientX, yBottom = yAxis.getThreshold(threshold), minVal, maxVal, minI, maxI;
// Get or create the renderer
renderer = createAndAttachRenderer(chart, this);
chart.boosted = true;
if (!this.visible) {
return;
}
// If we are zooming out from SVG mode, destroy the graphics
if (this.points || this.graph) {
destroyGraphics(this);
}
// If we're rendering per. series we should create the marker groups
// as usual.
if (!isChartSeriesBoosting(chart)) {
// If all series were boosting, but are not anymore
// restore private markerGroup
if (chart.boost &&
this.markerGroup === chart.boost.markerGroup) {
this.markerGroup = void 0;
}
this.markerGroup = this.plotGroup('markerGroup', 'markers', true, 1, chart.seriesGroup);
}
else {
// If series has a private markeGroup, remove that
// and use common markerGroup
if (this.markerGroup &&
this.markerGroup !== chart.boost.markerGroup) {
this.markerGroup.destroy();
}
// Use a single group for the markers
this.markerGroup = chart.boost.markerGroup;
// When switching from chart boosting mode, destroy redundant
// series boosting targets
if (this.boost && this.boost.target) {
this.renderTarget = this.boost.target = this.boost.target.destroy();
}
}
var points = this.points = [], addKDPoint = function (clientX, plotY, i, percentage) {
// We need to do ceil on the clientX to make things
// snap to pixel values. The renderer will frequently
// draw stuff on "sub-pixels".
clientX = Math.ceil(clientX);
// Shaves off about 60ms compared to repeated concatenation
index = compareX ? clientX : clientX + ',' + plotY;
// The k-d tree requires series points.
// Reduce the amount of points, since the time to build the
// tree increases exponentially.
if (enableMouseTracking && !pointTaken[index]) {
pointTaken[index] = true;
if (chart.inverted) {
clientX = xAxis.len - clientX;
plotY = yAxis.len - plotY;
}
points.push({
x: xDataFull ? xDataFull[cropStart + i] : false,
clientX: clientX,
plotX: clientX,
plotY: plotY,
i: cropStart + i,
percentage: percentage
});
}
};
// Do not start building while drawing
this.buildKDTree = noop;
if (renderer) {
allocateIfNotSeriesBoosting(renderer, this);
renderer.pushSeries(this);
// Perform the actual renderer if we're on series level
renderIfNotSeriesBoosting(this);
}
/**
* This builds the KD-tree
* @private
*/
function processPoint(d, i) {
var chartDestroyed = typeof chart.index === 'undefined';
var x, y, clientX, plotY, percentage, low = false, isYInside = true;
if (typeof d === 'undefined') {
return true;
}
if (!chartDestroyed) {
if (useRaw) {
x = d[0];
y = d[1];
}
else {
x = d;
y = yData[i];
}
// Resolve low and high for range series
if (isRange) {
if (useRaw) {
y = d.slice(1, 3);
}
low = y[0];
y = y[1];
}
else if (isStacked) {
x = d.x;
y = d.stackY;
low = y - d.y;
percentage = d.percentage;
}
// Optimize for scatter zooming
if (!requireSorting) {
isYInside = (y || 0) >= yMin && y <= yMax;
}
if (y !== null && x >= xMin && x <= xMax && isYInside) {
clientX = xAxis.toPixels(x, true);
if (sampling) {
if (typeof minI === 'undefined' ||
clientX === lastClientX) {
if (!isRange) {
low = y;
}
if (typeof maxI === 'undefined' ||
y > maxVal) {
maxVal = y;
maxI = i;
}
if (typeof minI === 'undefined' ||
low < minVal) {
minVal = low;
minI = i;
}
}
// Add points and reset
if (!compareX || clientX !== lastClientX) {
// maxI is number too:
if (typeof minI !== 'undefined') {
plotY =
yAxis.toPixels(maxVal, true);
yBottom =
yAxis.toPixels(minVal, true);
addKDPoint(clientX, plotY, maxI, percentage);
if (yBottom !== plotY) {
addKDPoint(clientX, yBottom, minI, percentage);
}
}
minI = maxI = void 0;
lastClientX = clientX;
}
}
else {
plotY = Math.ceil(yAxis.toPixels(y, true));
addKDPoint(clientX, plotY, i, percentage);
}
}
}
return !chartDestroyed;
}
/**
* @private
*/
var boostOptions = renderer.settings, doneProcessing = function () {
fireEvent(_this, 'renderedCanvas');
// Go back to prototype, ready to build
delete _this.buildKDTree;
_this.buildKDTree();
if (boostOptions.debug.timeKDTree) {
console.timeEnd('kd tree building'); // eslint-disable-line no-console
}
};
// Loop over the points to build the k-d tree - skip this if
// exporting
if (!chart.renderer.forExport) {
if (boostOptions.debug.timeKDTree) {
console.time('kd tree building'); // eslint-disable-line no-console
}
eachAsync(isStacked ? this.data : (xData || rawData), processPoint, doneProcessing);
}
}
/**
* Used for treemap|heatmap.drawPoints
* @private
*/
function wrapSeriesDrawPoints(proceed) {
var enabled = true;
if (this.chart.options && this.chart.options.boost) {
enabled = typeof this.chart.options.boost.enabled === 'undefined' ?
true :
this.chart.options.boost.enabled;
}
if (!enabled || !this.boosted) {
return proceed.call(this);
}
this.chart.boosted = true;
// Make sure we have a valid OGL context
var renderer = createAndAttachRenderer(this.chart, this);
if (renderer) {
allocateIfNotSeriesBoosting(renderer, this);
renderer.pushSeries(this);
}
renderIfNotSeriesBoosting(this);
}
/**
* Override a bunch of methods the same way. If the number of points is
* below the threshold, run the original method. If not, check for a
* canvas version or do nothing.
*
* Note that we're not overriding any of these for heatmaps.
*/
function wrapSeriesFunctions(seriesProto, seriesTypes, method) {
/**
* @private
*/
function branch(proceed) {
var letItPass = this.options.stacking &&
(method === 'translate' || method === 'generatePoints');
if (!this.boosted ||
letItPass ||
!boostEnabled(this.chart) ||
this.type === 'heatmap' ||
this.type === 'treemap' ||
!BoostableMap[this.type] ||
this.options.boostThreshold === 0) {
proceed.call(this);
// Run canvas version of method, like renderCanvas(), if it exists
}
else if (method === 'render' && this.renderCanvas) {
this.renderCanvas();
}
}
wrap(seriesProto, method, branch);
// Special case for some types, when translate method is already wrapped
if (method === 'translate') {
[
'column',
'arearange',
'columnrange',
'heatmap',
'treemap'
].forEach(function (type) {
if (seriesTypes[type]) {
wrap(seriesTypes[type].prototype, method, branch);
}
});
}
}
/**
* Do not compute extremes when min and max are set. If we use this in the
* core, we can add the hook to hasExtremes to the methods directly.
* @private
*/
function wrapSeriesGetExtremes(proceed) {
if (this.boosted &&
hasExtremes(this)) {
return {};
}
return proceed.apply(this, [].slice.call(arguments, 1));
}
/**
* If the series is a heatmap or treemap, or if the series is not boosting
* do the default behaviour. Otherwise, process if the series has no
* extremes.
* @private
*/
function wrapSeriesProcessData(proceed) {
var _this = this;
var dataToMeasure = this.options.data;
/**
* Used twice in this function, first on this.options.data, the second
* time it runs the check again after processedXData is built.
* If the data is going to be grouped, the series shouldn't be boosted.
* @private
*/
var getSeriesBoosting = function (data) {
var series = _this;
// Check if will be grouped.
if (series.forceCrop) {
return false;
}
return (isChartSeriesBoosting(series.chart) ||
((data ? data.length : 0) >=
(series.options.boostThreshold || Number.MAX_VALUE)));
};
if (boostEnabled(this.chart) && BoostableMap[this.type]) {
var series = this;
// If there are no extremes given in the options, we also need to
// process the data to read the data extremes. If this is a heatmap,
// do default behaviour.
if (
// First pass with options.data:
!getSeriesBoosting(dataToMeasure) ||
series.type === 'heatmap' ||
series.type === 'treemap' ||
// processedYData for the stack (#7481):
series.options.stacking ||
!hasExtremes(series, true)) {
proceed.apply(series, [].slice.call(arguments, 1));
dataToMeasure = series.processedXData;
}
// Set the isBoosting flag, second pass with processedXData to
// see if we have zoomed.
series.boosted = getSeriesBoosting(dataToMeasure);
// Enter or exit boost mode
if (series.boosted) {
// Force turbo-mode:
var firstPoint = void 0;
if (series.options.data &&
series.options.data.length) {
firstPoint = series.getFirstValidPoint(series.options.data);
if (!isNumber(firstPoint) && !isArray(firstPoint)) {
error(12, false, series.chart);
}
}
enterBoost(series);
}
else {
exitBoost(series);
}
// The series type is not boostable
}
else {
proceed.apply(this, [].slice.call(arguments, 1));
}
}
/**
* Return a point instance from the k-d-tree
* @private
*/
function wrapSeriesSearchPoint(proceed) {
var result = proceed.apply(this, [].slice.call(arguments, 1));
if (this.boost && result) {
return this.boost.getPoint(result);
}
return result;
}
/* *
*
* Default Export
*
* */
var BoostSeries = {
compose: compose,
destroyGraphics: destroyGraphics,
getPoint: getPoint
};
export default BoostSeries;
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