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/* *
* (c) 2010-2019 Torstein Honsi
*
* License: www.highcharts.com/license
*/
'use strict';
import H from './Globals.js';
import './Utilities.js';
import './Options.js';
import './Series.js';
var Series = H.Series,
seriesType = H.seriesType;
/**
* Scatter series type.
*
* @private
* @class
* @name Highcharts.seriesTypes.scatter
*
* @augments Highcharts.Series
*/
seriesType(
'scatter',
'line',
/**
* A scatter plot uses cartesian coordinates to display values for two
* variables for a set of data.
*
* @sample {highcharts} highcharts/demo/scatter/
* Scatter plot
*
* @extends plotOptions.line
* @excluding pointPlacement, shadow, useOhlcData
* @product highcharts highstock
* @optionparent plotOptions.scatter
*/
{
/**
* The width of the line connecting the data points.
*
* @sample {highcharts} highcharts/plotoptions/scatter-linewidth-none/
* 0 by default
* @sample {highcharts} highcharts/plotoptions/scatter-linewidth-1/
* 1px
*
* @product highcharts highstock
*/
lineWidth: 0,
findNearestPointBy: 'xy',
/**
* Apply a jitter effect for the rendered markers. When plotting
* discrete values, a little random noise may help telling the points
* apart. The jitter setting applies a random displacement of up to `n`
* axis units in either direction. So for example on a horizontal X
* axis, setting the `jitter.x` to 0.24 will render the point in a
* random position between 0.24 units to the left and 0.24 units to the
* right of the true axis position. On a category axis, setting it to
* 0.5 will fill up the bin and make the data appear continuous.
*
* When rendered on top of a box plot or a column series, a jitter value
* of 0.24 will correspond to the underlying series' default
* [groupPadding](
* https://api.highcharts.com/highcharts/plotOptions.column.groupPadding)
* and [pointPadding](
* https://api.highcharts.com/highcharts/plotOptions.column.pointPadding)
* settings.
*
* @sample {highcharts} highcharts/series-scatter/jitter
* Jitter on a scatter plot
*
* @sample {highcharts} highcharts/series-scatter/jitter-boxplot
* Jittered scatter plot on top of a box plot
*
* @product highcharts highstock
* @since 7.0.2
*/
jitter: {
/**
* The maximal X offset for the random jitter effect.
*/
x: 0,
/**
* The maximal Y offset for the random jitter effect.
*/
y: 0
},
marker: {
enabled: true // Overrides auto-enabling in line series (#3647)
},
/**
* Sticky tracking of mouse events. When true, the `mouseOut` event
* on a series isn't triggered until the mouse moves over another
* series, or out of the plot area. When false, the `mouseOut` event on
* a series is triggered when the mouse leaves the area around the
* series' graph or markers. This also implies the tooltip. When
* `stickyTracking` is false and `tooltip.shared` is false, the tooltip
* will be hidden when moving the mouse between series.
*
* @type {boolean}
* @default false
* @product highcharts highstock
* @apioption plotOptions.scatter.stickyTracking
*/
/**
* A configuration object for the tooltip rendering of each single
* series. Properties are inherited from [tooltip](#tooltip).
* Overridable properties are `headerFormat`, `pointFormat`,
* `yDecimals`, `xDateFormat`, `yPrefix` and `ySuffix`. Unlike other
* series, in a scatter plot the series.name by default shows in the
* headerFormat and point.x and point.y in the pointFormat.
*
* @product highcharts highstock
*/
tooltip: {
headerFormat:
'<span style="color:{point.color}">\u25CF</span> ' +
'<span style="font-size: 10px"> {series.name}</span><br/>',
pointFormat: 'x: <b>{point.x}</b><br/>y: <b>{point.y}</b><br/>'
}
// Prototype members
}, {
sorted: false,
requireSorting: false,
noSharedTooltip: true,
trackerGroups: ['group', 'markerGroup', 'dataLabelsGroup'],
takeOrdinalPosition: false, // #2342
/**
* @private
* @function Highcharts.seriesTypes.scatter#drawGraph
*/
drawGraph: function () {
if (this.options.lineWidth) {
Series.prototype.drawGraph.call(this);
}
},
// Optionally add the jitter effect
applyJitter: function () {
var series = this,
jitter = this.options.jitter,
len = this.points.length;
// Return a repeatable, pseudo-random number based on an integer
// seed
function unrandom(seed) {
var rand = Math.sin(seed) * 10000;
return rand - Math.floor(rand);
}
if (jitter) {
this.points.forEach(function (point, i) {
['x', 'y'].forEach(function (dim, j) {
var axis,
plotProp = 'plot' + dim.toUpperCase(),
min,
max,
translatedJitter;
if (jitter[dim] && !point.isNull) {
axis = series[dim + 'Axis'];
translatedJitter = jitter[dim] * axis.transA;
if (axis && !axis.isLog) {
// Identify the outer bounds of the jitter range
min = Math.max(
0,
point[plotProp] - translatedJitter
);
max = Math.min(
axis.len,
point[plotProp] + translatedJitter
);
// Find a random position within this range
point[plotProp] = min +
(max - min) * unrandom(i + j * len);
// Update clientX for the tooltip k-d-tree
if (dim === 'x') {
point.clientX = point.plotX;
}
}
}
});
});
}
}
}
);
H.addEvent(Series, 'afterTranslate', function () {
if (this.applyJitter) {
this.applyJitter();
}
});
/**
* A `scatter` series. If the [type](#series.scatter.type) option is
* not specified, it is inherited from [chart.type](#chart.type).
*
* @extends series,plotOptions.scatter
* @excluding dataParser, dataURL, useOhlcData
* @product highcharts highstock
* @apioption series.scatter
*/
/**
* An array of data points for the series. For the `scatter` series
* type, points can be given in the following ways:
*
* 1. An array of numerical values. In this case, the numerical values will be
* interpreted as `y` options. The `x` values will be automatically
* calculated, either starting at 0 and incremented by 1, or from
* `pointStart` and `pointInterval` given in the series options. If the axis
* has categories, these will be used. Example:
* ```js
* data: [0, 5, 3, 5]
* ```
*
* 2. An array of arrays with 2 values. In this case, the values correspond to
* `x,y`. If the first value is a string, it is applied as the name of the
* point, and the `x` value is inferred.
* ```js
* data: [
* [0, 0],
* [1, 8],
* [2, 9]
* ]
* ```
*
* 3. An array of objects with named values. The following snippet shows only a
* few settings, see the complete options set below. If the total number of
* data points exceeds the series'
* [turboThreshold](#series.scatter.turboThreshold), this option is not
* available.
* ```js
* data: [{
* x: 1,
* y: 2,
* name: "Point2",
* color: "#00FF00"
* }, {
* x: 1,
* y: 4,
* name: "Point1",
* color: "#FF00FF"
* }]
* ```
*
* @sample {highcharts} highcharts/chart/reflow-true/
* Numerical values
* @sample {highcharts} highcharts/series/data-array-of-arrays/
* Arrays of numeric x and y
* @sample {highcharts} highcharts/series/data-array-of-arrays-datetime/
* Arrays of datetime x and y
* @sample {highcharts} highcharts/series/data-array-of-name-value/
* Arrays of point.name and y
* @sample {highcharts} highcharts/series/data-array-of-objects/
* Config objects
*
* @type {Array<number|Array<(number|string),(number|null)>|null|*>}
* @extends series.line.data
* @product highcharts highstock
* @apioption series.scatter.data
*/