637 lines
26 KiB
JavaScript
637 lines
26 KiB
JavaScript
|
/**
|
||
|
|
* @license Highcharts JS v5.0.2 (2016-10-26)
|
||
|
|
* Boost module
|
||
|
|
*
|
||
|
|
* (c) 2010-2016 Highsoft AS
|
||
|
|
* Author: Torstein Honsi
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*/
|
||
|
|
(function(factory) {
|
||
|
|
if (typeof module === 'object' && module.exports) {
|
||
|
|
module.exports = factory;
|
||
|
|
} else {
|
||
|
|
factory(Highcharts);
|
||
|
|
}
|
||
|
|
}(function(Highcharts) {
|
||
|
|
(function(H) {
|
||
|
|
/**
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
* Author: 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 HTML5 canvas compatible browsers (not IE < 9).
|
||
|
|
*
|
||
|
|
*
|
||
|
|
*
|
||
|
|
* Development plan
|
||
|
|
* - Column range.
|
||
|
|
* - Heatmap. Modify the heatmap-canvas demo so that it uses this module.
|
||
|
|
* - Treemap.
|
||
|
|
* - 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.
|
||
|
|
* - Check reversed axes.
|
||
|
|
* - Chart callback should be async after last series is drawn. (But not necessarily, we don't do
|
||
|
|
that with initial series animation).
|
||
|
|
* - Cache full-size image so we don't have to redraw on hide/show and zoom up. But k-d-tree still
|
||
|
|
* needs to be built.
|
||
|
|
* - Test IE9 and IE10.
|
||
|
|
* - Stacking is not perhaps not correct since it doesn't use the translation given in
|
||
|
|
* the translate method. If this gets to complicated, a possible way out would be to
|
||
|
|
* have a simplified renderCanvas method that simply draws the areaPath on a canvas.
|
||
|
|
*
|
||
|
|
* 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
|
||
|
|
* - Point markers are not drawn on line-type series
|
||
|
|
* - 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.
|
||
|
|
*
|
||
|
|
* Optimizing tips for users
|
||
|
|
* - For scatter plots, use a marker.radius of 1 or less. It results in a rectangle being drawn, which is
|
||
|
|
* considerably faster than a circle.
|
||
|
|
* - 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
'use strict';
|
||
|
|
|
||
|
|
var win = H.win,
|
||
|
|
doc = win.document,
|
||
|
|
noop = function() {},
|
||
|
|
Color = H.Color,
|
||
|
|
Series = H.Series,
|
||
|
|
seriesTypes = H.seriesTypes,
|
||
|
|
each = H.each,
|
||
|
|
extend = H.extend,
|
||
|
|
addEvent = H.addEvent,
|
||
|
|
fireEvent = H.fireEvent,
|
||
|
|
grep = H.grep,
|
||
|
|
isNumber = H.isNumber,
|
||
|
|
merge = H.merge,
|
||
|
|
pick = H.pick,
|
||
|
|
wrap = H.wrap,
|
||
|
|
plotOptions = H.getOptions().plotOptions,
|
||
|
|
CHUNK_SIZE = 50000,
|
||
|
|
destroyLoadingDiv;
|
||
|
|
|
||
|
|
function eachAsync(arr, fn, finalFunc, chunkSize, i) {
|
||
|
|
i = i || 0;
|
||
|
|
chunkSize = chunkSize || CHUNK_SIZE;
|
||
|
|
|
||
|
|
var threshold = i + chunkSize,
|
||
|
|
proceed = true;
|
||
|
|
|
||
|
|
while (proceed && i < threshold && i < arr.length) {
|
||
|
|
proceed = fn(arr[i], i);
|
||
|
|
i = i + 1;
|
||
|
|
}
|
||
|
|
if (proceed) {
|
||
|
|
if (i < arr.length) {
|
||
|
|
setTimeout(function() {
|
||
|
|
eachAsync(arr, fn, finalFunc, chunkSize, i);
|
||
|
|
});
|
||
|
|
} else if (finalFunc) {
|
||
|
|
finalFunc();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Set default options
|
||
|
|
each(['area', 'arearange', 'column', 'line', 'scatter'], function(type) {
|
||
|
|
if (plotOptions[type]) {
|
||
|
|
plotOptions[type].boostThreshold = 5000;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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.
|
||
|
|
*/
|
||
|
|
each(['translate', 'generatePoints', 'drawTracker', 'drawPoints', 'render'], function(method) {
|
||
|
|
function branch(proceed) {
|
||
|
|
var letItPass = this.options.stacking && (method === 'translate' || method === 'generatePoints');
|
||
|
|
if ((this.processedXData || this.options.data).length < (this.options.boostThreshold || Number.MAX_VALUE) ||
|
||
|
|
letItPass) {
|
||
|
|
|
||
|
|
// Clear image
|
||
|
|
if (method === 'render' && this.image) {
|
||
|
|
this.image.attr({
|
||
|
|
href: ''
|
||
|
|
});
|
||
|
|
this.animate = null; // We're zooming in, don't run animation
|
||
|
|
}
|
||
|
|
|
||
|
|
proceed.call(this);
|
||
|
|
|
||
|
|
// If a canvas version of the method exists, like renderCanvas(), run
|
||
|
|
} else if (this[method + 'Canvas']) {
|
||
|
|
|
||
|
|
this[method + 'Canvas']();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
wrap(Series.prototype, method, branch);
|
||
|
|
|
||
|
|
// A special case for some types - its translate method is already wrapped
|
||
|
|
if (method === 'translate') {
|
||
|
|
if (seriesTypes.column) {
|
||
|
|
wrap(seriesTypes.column.prototype, method, branch);
|
||
|
|
}
|
||
|
|
if (seriesTypes.arearange) {
|
||
|
|
wrap(seriesTypes.arearange.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.
|
||
|
|
*/
|
||
|
|
wrap(Series.prototype, 'getExtremes', function(proceed) {
|
||
|
|
if (!this.hasExtremes()) {
|
||
|
|
proceed.apply(this, Array.prototype.slice.call(arguments, 1));
|
||
|
|
}
|
||
|
|
});
|
||
|
|
wrap(Series.prototype, 'setData', function(proceed) {
|
||
|
|
if (!this.hasExtremes(true)) {
|
||
|
|
proceed.apply(this, Array.prototype.slice.call(arguments, 1));
|
||
|
|
}
|
||
|
|
});
|
||
|
|
wrap(Series.prototype, 'processData', function(proceed) {
|
||
|
|
if (!this.hasExtremes(true)) {
|
||
|
|
proceed.apply(this, Array.prototype.slice.call(arguments, 1));
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
|
||
|
|
H.extend(Series.prototype, {
|
||
|
|
pointRange: 0,
|
||
|
|
allowDG: false, // No data grouping, let boost handle large data
|
||
|
|
hasExtremes: function(checkX) {
|
||
|
|
var options = this.options,
|
||
|
|
data = options.data,
|
||
|
|
xAxis = this.xAxis && this.xAxis.options,
|
||
|
|
yAxis = this.yAxis && this.yAxis.options;
|
||
|
|
return data.length > (options.boostThreshold || Number.MAX_VALUE) && isNumber(yAxis.min) && isNumber(yAxis.max) &&
|
||
|
|
(!checkX || (isNumber(xAxis.min) && isNumber(xAxis.max)));
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* If implemented in the core, parts of this can probably be shared with other similar
|
||
|
|
* methods in Highcharts.
|
||
|
|
*/
|
||
|
|
destroyGraphics: function() {
|
||
|
|
var series = this,
|
||
|
|
points = this.points,
|
||
|
|
point,
|
||
|
|
i;
|
||
|
|
|
||
|
|
if (points) {
|
||
|
|
for (i = 0; i < points.length; i = i + 1) {
|
||
|
|
point = points[i];
|
||
|
|
if (point && point.graphic) {
|
||
|
|
point.graphic = point.graphic.destroy();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
each(['graph', 'area', 'tracker'], function(prop) {
|
||
|
|
if (series[prop]) {
|
||
|
|
series[prop] = series[prop].destroy();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create a hidden canvas to draw the graph on. The contents is later copied over
|
||
|
|
* to an SVG image element.
|
||
|
|
*/
|
||
|
|
getContext: function() {
|
||
|
|
var chart = this.chart,
|
||
|
|
width = chart.plotWidth,
|
||
|
|
height = chart.plotHeight,
|
||
|
|
ctx = this.ctx,
|
||
|
|
swapXY = function(proceed, x, y, a, b, c, d) {
|
||
|
|
proceed.call(this, y, x, a, b, c, d);
|
||
|
|
};
|
||
|
|
|
||
|
|
if (!this.canvas) {
|
||
|
|
this.canvas = doc.createElement('canvas');
|
||
|
|
this.image = chart.renderer.image('', 0, 0, width, height).add(this.group);
|
||
|
|
this.ctx = ctx = this.canvas.getContext('2d');
|
||
|
|
if (chart.inverted) {
|
||
|
|
each(['moveTo', 'lineTo', 'rect', 'arc'], function(fn) {
|
||
|
|
wrap(ctx, fn, swapXY);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
ctx.clearRect(0, 0, width, height);
|
||
|
|
}
|
||
|
|
|
||
|
|
this.canvas.width = width;
|
||
|
|
this.canvas.height = height;
|
||
|
|
this.image.attr({
|
||
|
|
width: width,
|
||
|
|
height: height
|
||
|
|
});
|
||
|
|
|
||
|
|
return ctx;
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Draw the canvas image inside an SVG image
|
||
|
|
*/
|
||
|
|
canvasToSVG: function() {
|
||
|
|
this.image.attr({
|
||
|
|
href: this.canvas.toDataURL('image/png')
|
||
|
|
});
|
||
|
|
},
|
||
|
|
|
||
|
|
cvsLineTo: function(ctx, clientX, plotY) {
|
||
|
|
ctx.lineTo(clientX, plotY);
|
||
|
|
},
|
||
|
|
|
||
|
|
renderCanvas: function() {
|
||
|
|
var series = this,
|
||
|
|
options = series.options,
|
||
|
|
chart = series.chart,
|
||
|
|
xAxis = this.xAxis,
|
||
|
|
yAxis = this.yAxis,
|
||
|
|
ctx,
|
||
|
|
c = 0,
|
||
|
|
xData = series.processedXData,
|
||
|
|
yData = series.processedYData,
|
||
|
|
rawData = options.data,
|
||
|
|
xExtremes = xAxis.getExtremes(),
|
||
|
|
xMin = xExtremes.min,
|
||
|
|
xMax = xExtremes.max,
|
||
|
|
yExtremes = yAxis.getExtremes(),
|
||
|
|
yMin = yExtremes.min,
|
||
|
|
yMax = yExtremes.max,
|
||
|
|
pointTaken = {},
|
||
|
|
lastClientX,
|
||
|
|
sampling = !!series.sampling,
|
||
|
|
points,
|
||
|
|
r = options.marker && options.marker.radius,
|
||
|
|
cvsDrawPoint = this.cvsDrawPoint,
|
||
|
|
cvsLineTo = options.lineWidth ? this.cvsLineTo : false,
|
||
|
|
cvsMarker = r <= 1 ? this.cvsMarkerSquare : this.cvsMarkerCircle,
|
||
|
|
enableMouseTracking = options.enableMouseTracking !== false,
|
||
|
|
lastPoint,
|
||
|
|
threshold = options.threshold,
|
||
|
|
yBottom = yAxis.getThreshold(threshold),
|
||
|
|
hasThreshold = isNumber(threshold),
|
||
|
|
translatedThreshold = yBottom,
|
||
|
|
doFill = this.fill,
|
||
|
|
isRange = series.pointArrayMap && series.pointArrayMap.join(',') === 'low,high',
|
||
|
|
isStacked = !!options.stacking,
|
||
|
|
cropStart = series.cropStart || 0,
|
||
|
|
loadingOptions = chart.options.loading,
|
||
|
|
requireSorting = series.requireSorting,
|
||
|
|
wasNull,
|
||
|
|
connectNulls = options.connectNulls,
|
||
|
|
useRaw = !xData,
|
||
|
|
minVal,
|
||
|
|
maxVal,
|
||
|
|
minI,
|
||
|
|
maxI,
|
||
|
|
fillColor = series.fillOpacity ?
|
||
|
|
new Color(series.color).setOpacity(pick(options.fillOpacity, 0.75)).get() :
|
||
|
|
series.color,
|
||
|
|
stroke = function() {
|
||
|
|
if (doFill) {
|
||
|
|
ctx.fillStyle = fillColor;
|
||
|
|
ctx.fill();
|
||
|
|
} else {
|
||
|
|
ctx.strokeStyle = series.color;
|
||
|
|
ctx.lineWidth = options.lineWidth;
|
||
|
|
ctx.stroke();
|
||
|
|
}
|
||
|
|
},
|
||
|
|
drawPoint = function(clientX, plotY, yBottom) {
|
||
|
|
if (c === 0) {
|
||
|
|
ctx.beginPath();
|
||
|
|
|
||
|
|
if (cvsLineTo) {
|
||
|
|
ctx.lineJoin = 'round';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (wasNull) {
|
||
|
|
ctx.moveTo(clientX, plotY);
|
||
|
|
} else {
|
||
|
|
if (cvsDrawPoint) {
|
||
|
|
cvsDrawPoint(ctx, clientX, plotY, yBottom, lastPoint);
|
||
|
|
} else if (cvsLineTo) {
|
||
|
|
cvsLineTo(ctx, clientX, plotY);
|
||
|
|
} else if (cvsMarker) {
|
||
|
|
cvsMarker(ctx, clientX, plotY, r);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// We need to stroke the line for every 1000 pixels. It will crash the browser
|
||
|
|
// memory use if we stroke too infrequently.
|
||
|
|
c = c + 1;
|
||
|
|
if (c === 1000) {
|
||
|
|
stroke();
|
||
|
|
c = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Area charts need to keep track of the last point
|
||
|
|
lastPoint = {
|
||
|
|
clientX: clientX,
|
||
|
|
plotY: plotY,
|
||
|
|
yBottom: yBottom
|
||
|
|
};
|
||
|
|
},
|
||
|
|
|
||
|
|
addKDPoint = function(clientX, plotY, i) {
|
||
|
|
|
||
|
|
// The k-d tree requires series points. Reduce the amount of points, since the time to build the
|
||
|
|
// tree increases exponentially.
|
||
|
|
if (enableMouseTracking && !pointTaken[clientX + ',' + plotY]) {
|
||
|
|
pointTaken[clientX + ',' + plotY] = true;
|
||
|
|
|
||
|
|
if (chart.inverted) {
|
||
|
|
clientX = xAxis.len - clientX;
|
||
|
|
plotY = yAxis.len - plotY;
|
||
|
|
}
|
||
|
|
|
||
|
|
points.push({
|
||
|
|
clientX: clientX,
|
||
|
|
plotX: clientX,
|
||
|
|
plotY: plotY,
|
||
|
|
i: cropStart + i
|
||
|
|
});
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
// If we are zooming out from SVG mode, destroy the graphics
|
||
|
|
if (this.points || this.graph) {
|
||
|
|
this.destroyGraphics();
|
||
|
|
}
|
||
|
|
|
||
|
|
// The group
|
||
|
|
series.plotGroup(
|
||
|
|
'group',
|
||
|
|
'series',
|
||
|
|
series.visible ? 'visible' : 'hidden',
|
||
|
|
options.zIndex,
|
||
|
|
chart.seriesGroup
|
||
|
|
);
|
||
|
|
|
||
|
|
series.markerGroup = series.group;
|
||
|
|
addEvent(series, 'destroy', function() {
|
||
|
|
series.markerGroup = null;
|
||
|
|
});
|
||
|
|
|
||
|
|
points = this.points = [];
|
||
|
|
ctx = this.getContext();
|
||
|
|
series.buildKDTree = noop; // Do not start building while drawing
|
||
|
|
|
||
|
|
// Display a loading indicator
|
||
|
|
if (rawData.length > 99999) {
|
||
|
|
chart.options.loading = merge(loadingOptions, {
|
||
|
|
labelStyle: {
|
||
|
|
backgroundColor: H.color('#ffffff').setOpacity(0.75).get(),
|
||
|
|
padding: '1em',
|
||
|
|
borderRadius: '0.5em'
|
||
|
|
},
|
||
|
|
style: {
|
||
|
|
backgroundColor: 'none',
|
||
|
|
opacity: 1
|
||
|
|
}
|
||
|
|
});
|
||
|
|
clearTimeout(destroyLoadingDiv);
|
||
|
|
chart.showLoading('Drawing...');
|
||
|
|
chart.options.loading = loadingOptions; // reset
|
||
|
|
}
|
||
|
|
|
||
|
|
// Loop over the points
|
||
|
|
eachAsync(isStacked ? series.data : (xData || rawData), function(d, i) {
|
||
|
|
var x,
|
||
|
|
y,
|
||
|
|
clientX,
|
||
|
|
plotY,
|
||
|
|
isNull,
|
||
|
|
low,
|
||
|
|
chartDestroyed = typeof chart.index === 'undefined',
|
||
|
|
isYInside = 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;
|
||
|
|
}
|
||
|
|
|
||
|
|
isNull = y === null;
|
||
|
|
|
||
|
|
// Optimize for scatter zooming
|
||
|
|
if (!requireSorting) {
|
||
|
|
isYInside = y >= yMin && y <= yMax;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!isNull && x >= xMin && x <= xMax && isYInside) {
|
||
|
|
|
||
|
|
clientX = Math.round(xAxis.toPixels(x, true));
|
||
|
|
|
||
|
|
if (sampling) {
|
||
|
|
if (minI === undefined || clientX === lastClientX) {
|
||
|
|
if (!isRange) {
|
||
|
|
low = y;
|
||
|
|
}
|
||
|
|
if (maxI === undefined || y > maxVal) {
|
||
|
|
maxVal = y;
|
||
|
|
maxI = i;
|
||
|
|
}
|
||
|
|
if (minI === undefined || low < minVal) {
|
||
|
|
minVal = low;
|
||
|
|
minI = i;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
if (clientX !== lastClientX) { // Add points and reset
|
||
|
|
if (minI !== undefined) { // then maxI is also a number
|
||
|
|
plotY = yAxis.toPixels(maxVal, true);
|
||
|
|
yBottom = yAxis.toPixels(minVal, true);
|
||
|
|
drawPoint(
|
||
|
|
clientX,
|
||
|
|
hasThreshold ? Math.min(plotY, translatedThreshold) : plotY,
|
||
|
|
hasThreshold ? Math.max(yBottom, translatedThreshold) : yBottom
|
||
|
|
);
|
||
|
|
addKDPoint(clientX, plotY, maxI);
|
||
|
|
if (yBottom !== plotY) {
|
||
|
|
addKDPoint(clientX, yBottom, minI);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
minI = maxI = undefined;
|
||
|
|
lastClientX = clientX;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
plotY = Math.round(yAxis.toPixels(y, true));
|
||
|
|
drawPoint(clientX, plotY, yBottom);
|
||
|
|
addKDPoint(clientX, plotY, i);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
wasNull = isNull && !connectNulls;
|
||
|
|
|
||
|
|
if (i % CHUNK_SIZE === 0) {
|
||
|
|
series.canvasToSVG();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return !chartDestroyed;
|
||
|
|
}, function() {
|
||
|
|
var loadingDiv = chart.loadingDiv,
|
||
|
|
loadingShown = chart.loadingShown;
|
||
|
|
stroke();
|
||
|
|
series.canvasToSVG();
|
||
|
|
|
||
|
|
fireEvent(series, 'renderedCanvas');
|
||
|
|
|
||
|
|
// Do not use chart.hideLoading, as it runs JS animation and will be blocked by buildKDTree.
|
||
|
|
// CSS animation looks good, but then it must be deleted in timeout. If we add the module to core,
|
||
|
|
// change hideLoading so we can skip this block.
|
||
|
|
if (loadingShown) {
|
||
|
|
extend(loadingDiv.style, {
|
||
|
|
transition: 'opacity 250ms',
|
||
|
|
opacity: 0
|
||
|
|
});
|
||
|
|
chart.loadingShown = false;
|
||
|
|
destroyLoadingDiv = setTimeout(function() {
|
||
|
|
if (loadingDiv.parentNode) { // In exporting it is falsy
|
||
|
|
loadingDiv.parentNode.removeChild(loadingDiv);
|
||
|
|
}
|
||
|
|
chart.loadingDiv = chart.loadingSpan = null;
|
||
|
|
}, 250);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Pass tests in Pointer.
|
||
|
|
// Replace this with a single property, and replace when zooming in
|
||
|
|
// below boostThreshold.
|
||
|
|
series.directTouch = false;
|
||
|
|
series.options.stickyTracking = true;
|
||
|
|
|
||
|
|
delete series.buildKDTree; // Go back to prototype, ready to build
|
||
|
|
series.buildKDTree();
|
||
|
|
|
||
|
|
// Don't do async on export, the exportChart, getSVGForExport and getSVG methods are not chained for it.
|
||
|
|
}, chart.renderer.forExport ? Number.MAX_VALUE : undefined);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
seriesTypes.scatter.prototype.cvsMarkerCircle = function(ctx, clientX, plotY, r) {
|
||
|
|
ctx.moveTo(clientX, plotY);
|
||
|
|
ctx.arc(clientX, plotY, r, 0, 2 * Math.PI, false);
|
||
|
|
};
|
||
|
|
|
||
|
|
// Rect is twice as fast as arc, should be used for small markers
|
||
|
|
seriesTypes.scatter.prototype.cvsMarkerSquare = function(ctx, clientX, plotY, r) {
|
||
|
|
ctx.rect(clientX - r, plotY - r, r * 2, r * 2);
|
||
|
|
};
|
||
|
|
seriesTypes.scatter.prototype.fill = true;
|
||
|
|
|
||
|
|
extend(seriesTypes.area.prototype, {
|
||
|
|
cvsDrawPoint: function(ctx, clientX, plotY, yBottom, lastPoint) {
|
||
|
|
if (lastPoint && clientX !== lastPoint.clientX) {
|
||
|
|
ctx.moveTo(lastPoint.clientX, lastPoint.yBottom);
|
||
|
|
ctx.lineTo(lastPoint.clientX, lastPoint.plotY);
|
||
|
|
ctx.lineTo(clientX, plotY);
|
||
|
|
ctx.lineTo(clientX, yBottom);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
fill: true,
|
||
|
|
fillOpacity: true,
|
||
|
|
sampling: true
|
||
|
|
});
|
||
|
|
|
||
|
|
extend(seriesTypes.column.prototype, {
|
||
|
|
cvsDrawPoint: function(ctx, clientX, plotY, yBottom) {
|
||
|
|
ctx.rect(clientX - 1, plotY, 1, yBottom - plotY);
|
||
|
|
},
|
||
|
|
fill: true,
|
||
|
|
sampling: true
|
||
|
|
});
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Return a full Point object based on the index. The boost module uses stripped point objects
|
||
|
|
* for performance reasons.
|
||
|
|
* @param {Number} boostPoint A stripped-down point object
|
||
|
|
* @returns {Object} A Point object as per http://api.highcharts.com/highcharts#Point
|
||
|
|
*/
|
||
|
|
Series.prototype.getPoint = function(boostPoint) {
|
||
|
|
var point = boostPoint;
|
||
|
|
|
||
|
|
if (boostPoint && !(boostPoint instanceof this.pointClass)) {
|
||
|
|
point = (new this.pointClass()).init(this, this.options.data[boostPoint.i]); // eslint-disable-line new-cap
|
||
|
|
point.category = point.x;
|
||
|
|
|
||
|
|
point.dist = boostPoint.dist;
|
||
|
|
point.distX = boostPoint.distX;
|
||
|
|
point.plotX = boostPoint.plotX;
|
||
|
|
point.plotY = boostPoint.plotY;
|
||
|
|
}
|
||
|
|
|
||
|
|
return point;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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.
|
||
|
|
*/
|
||
|
|
wrap(Series.prototype, 'destroy', function(proceed) {
|
||
|
|
var series = this,
|
||
|
|
chart = series.chart;
|
||
|
|
if (chart.hoverPoints) {
|
||
|
|
chart.hoverPoints = grep(chart.hoverPoints, function(point) {
|
||
|
|
return point.series === series;
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
if (chart.hoverPoint && chart.hoverPoint.series === series) {
|
||
|
|
chart.hoverPoint = null;
|
||
|
|
}
|
||
|
|
proceed.call(this);
|
||
|
|
});
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Return a point instance from the k-d-tree
|
||
|
|
*/
|
||
|
|
wrap(Series.prototype, 'searchPoint', function(proceed) {
|
||
|
|
return this.getPoint(
|
||
|
|
proceed.apply(this, [].slice.call(arguments, 1))
|
||
|
|
);
|
||
|
|
});
|
||
|
|
|
||
|
|
}(Highcharts));
|
||
|
|
}));
|