highcharts
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JavaScript charting framework
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JavaScript
/* *
* (c) 2010-2019 Torstein Honsi
*
* License: www.highcharts.com/license
*/
/**
* Function callback when a series has been animated.
*
* @callback Highcharts.SeriesAfterAnimateCallbackFunction
*
* @param {Highcharts.Series} this
* The series where the event occured.
*
* @param {Highcharts.SeriesAfterAnimateEventObject} event
* Event arguments.
*/
/**
* Event information regarding completed animation of a series.
*
* @interface Highcharts.SeriesAfterAnimateEventObject
*//**
* Animated series.
* @name Highcharts.SeriesAfterAnimateEventObject#target
* @type {Highcharts.Series}
*//**
* Event type.
* @name Highcharts.SeriesAfterAnimateEventObject#type
* @type {"afterAnimate"}
*/
/**
* Function callback when the checkbox next to the series' name in the legend is
* clicked.
*
* @callback Highcharts.SeriesCheckboxClickCallbackFunction
*
* @param {Highcharts.Series} this
* The series where the event occured.
*
* @param {Highcharts.SeriesCheckboxClickEventObject} event
* Event arguments.
*/
/**
* Event information regarding check of a series box.
*
* @interface Highcharts.SeriesCheckboxClickEventObject
*//**
* Whether the box has been checked.
* @name Highcharts.SeriesCheckboxClickEventObject#checked
* @type {boolean}
*//**
* Related series.
* @name Highcharts.SeriesCheckboxClickEventObject#item
* @type {Highcharts.Series}
*//**
* Related series.
* @name Highcharts.SeriesCheckboxClickEventObject#target
* @type {Highcharts.Series}
*//**
* Event type.
* @name Highcharts.SeriesCheckboxClickEventObject#type
* @type {"checkboxClick"}
*/
/**
* Function callback when a series is clicked. Return false to cancel toogle
* actions.
*
* @callback Highcharts.SeriesClickCallbackFunction
*
* @param {Highcharts.Series} this
* The series where the event occured.
*
* @param {Highcharts.SeriesClickEventObject} event
* Event arguments.
*/
/**
* Common information for a click event on a series.
*
* @interface Highcharts.SeriesClickEventObject
* @extends global.Event
*//**
* Nearest point on the graph.
* @name Highcharts.SeriesClickEventObject#point
* @type {Highcharts.Point}
*/
/**
* Gets fired when the series is hidden after chart generation time, either by
* clicking the legend item or by calling `.hide()`.
*
* @callback Highcharts.SeriesHideCallbackFunction
*
* @param {Highcharts.Series} this
* The series where the event occured.
*
* @param {global.Event} event
* The event that occured.
*/
/**
* The SVG value used for the `stroke-linecap` and `stroke-linejoin` of a line
* graph.
*
* @typedef {"butt"|"round"|"square"|string} Highcharts.SeriesLinecapValue
*/
/**
* Gets fired when the legend item belonging to the series is clicked. The
* default action is to toggle the visibility of the series. This can be
* prevented by returning `false` or calling `event.preventDefault()`.
*
* @callback Highcharts.SeriesLegendItemClickCallbackFunction
*
* @param {Highcharts.Series} this
* The series where the event occured.
*
* @param {Highcharts.SeriesLegendItemClickEventObject} event
* The event that occured.
*/
/**
* Information about the event.
*
* @interface Highcharts.SeriesLegendItemClickEventObject
*//**
* Related browser event.
* @name Highcharts.SeriesLegendItemClickEventObject#browserEvent
* @type {Highcharts.PointerEvent}
*//**
* Prevent the default action of toggle the visibility of the series.
* @name Highcharts.SeriesLegendItemClickEventObject#preventDefault
* @type {Function}
*//**
* Related series.
* @name Highcharts.SeriesCheckboxClickEventObject#target
* @type {Highcharts.Series}
*//**
* Event type.
* @name Highcharts.SeriesCheckboxClickEventObject#type
* @type {"checkboxClick"}
*/
/**
* Gets fired when the mouse leaves the graph.
*
* @callback Highcharts.SeriesMouseOutCallbackFunction
*
* @param {Highcharts.Series} this
* Series where the event occured.
*
* @param {global.Event} event
* Event that occured.
*/
/**
* Gets fired when the mouse enters the graph.
*
* @callback Highcharts.SeriesMouseOverCallbackFunction
*
* @param {Highcharts.Series} this
* Series where the event occured.
*
* @param {global.Event} event
* Event that occured.
*/
/**
* Translation and scale for the plot area of a series.
*
* @interface Highcharts.SeriesPlotBoxObject
*//**
* @name Highcharts.SeriesPlotBoxObject#translateX
* @type {number}
*//**
* @name Highcharts.SeriesPlotBoxObject#translateY
* @type {number}
*//**
* @name Highcharts.SeriesPlotBoxObject#scaleX
* @type {number}
*//**
* @name Highcharts.SeriesPlotBoxObject#scaleY
* @type {number}
*/
/**
* Function callback when a series point is clicked. Return false to cancel the
* action.
*
* @callback Highcharts.SeriesPointClickCallbackFunction
*
* @param {Highcharts.Point} this
* The point where the event occured.
*
* @param {Highcharts.SeriesPointClickEventObject} event
* Event arguments.
*/
/**
* Common information for a click event on a series point.
*
* @interface Highcharts.SeriesPointClickEventObject
* @extends Highcharts.PointerEventObject
*//**
* Clicked point.
* @name Highcharts.SeriesPointClickEventObject#point
* @type {Highcharts.Point}
*/
/**
* Gets fired when the mouse leaves the area close to the point.
*
* @callback Highcharts.SeriesPointMouseOutCallbackFunction
*
* @param {Highcharts.Point} this
* Point where the event occured.
*
* @param {global.Event} event
* Event that occured.
*/
/**
* Gets fired when the mouse enters the area close to the point.
*
* @callback Highcharts.SeriesPointMouseOverCallbackFunction
*
* @param {Highcharts.Point} this
* Point where the event occured.
*
* @param {global.Event} event
* Event that occured.
*/
/**
* Gets fired when the point is removed using the `.remove()` method.
*
* @callback Highcharts.SeriesPointRemoveCallbackFunction
*
* @param {Highcharts.Point} this
* Point where the event occured.
*
* @param {global.Event} event
* Event that occured.
*/
/**
* Gets fired when the point is selected either programmatically or following a
* click on the point.
*
* @callback Highcharts.SeriesPointSelectCallbackFunction
*
* @param {Highcharts.Point} this
* Point where the event occured.
*
* @param {Highcharts.SeriesPointSelectEventObject} event
* Event that occured.
*/
/**
* Information about the select event.
*
* @interface Highcharts.SeriesPointSelectEventObject
* @extends global.Event
*//**
* @name Highcharts.SeriesPointSelectEventObject#accumulate
* @type {boolean}
*/
/**
* Fires when the point is unselected either programmatically or following a
* click on the point.
*
* @callback Highcharts.SeriesPointUnselectCallbackFunction
*
* @param {Highcharts.Point} this
* Point where the event occured.
*
* @param {Highcharts.SeriesPointUnselectEventObject} event
* Event that occured.
*/
/**
* Information about the unselect event.
*
* @interface Highcharts.SeriesPointUnselectEventObject
* @extends global.Event
*//**
* @name Highcharts.SeriesPointUnselectEventObject#accumulate
* @type {boolean}
*/
/**
* Gets fired when the point is updated programmatically through the `.update()`
* method.
*
* @callback Highcharts.SeriesPointUpdateCallbackFunction
*
* @param {Highcharts.Point} this
* Point where the event occured.
*
* @param {Highcharts.SeriesPointUpdateEventObject} event
* Event that occured.
*/
/**
* Information about the update event.
*
* @interface Highcharts.SeriesPointUpdateEventObject
* @extends global.Event
*//**
* Options data of the update event.
* @name Highcharts.SeriesPointUpdateEventObject#options
* @type {number|object|Array<(number|string)>|null}
*/
/**
* Gets fired when the series is shown after chart generation time, either by
* clicking the legend item or by calling `.show()`.
*
* @callback Highcharts.SeriesShowCallbackFunction
*
* @param {Highcharts.Series} this
* Series where the event occured.
*
* @param {global.Event} event
* Event that occured.
*/
'use strict';
import H from './Globals.js';
import './Utilities.js';
import './Options.js';
import './Legend.js';
import './Point.js';
import './SvgRenderer.js';
var addEvent = H.addEvent,
animObject = H.animObject,
arrayMax = H.arrayMax,
arrayMin = H.arrayMin,
correctFloat = H.correctFloat,
defaultOptions = H.defaultOptions,
defaultPlotOptions = H.defaultPlotOptions,
defined = H.defined,
erase = H.erase,
extend = H.extend,
fireEvent = H.fireEvent,
isArray = H.isArray,
isNumber = H.isNumber,
isString = H.isString,
LegendSymbolMixin = H.LegendSymbolMixin, // @todo add as a requirement
merge = H.merge,
objectEach = H.objectEach,
pick = H.pick,
Point = H.Point, // @todo add as a requirement
removeEvent = H.removeEvent,
splat = H.splat,
SVGElement = H.SVGElement,
syncTimeout = H.syncTimeout,
win = H.win;
/**
* This is the base series prototype that all other series types inherit from.
* A new series is initialized either through the
* [series](https://api.highcharts.com/highcharts/series)
* option structure, or after the chart is initialized, through
* {@link Highcharts.Chart#addSeries}.
*
* The object can be accessed in a number of ways. All series and point event
* handlers give a reference to the `series` object. The chart object has a
* {@link Highcharts.Chart#series|series} property that is a collection of all
* the chart's series. The point objects and axis objects also have the same
* reference.
*
* Another way to reference the series programmatically is by `id`. Add an id
* in the series configuration options, and get the series object by
* {@link Highcharts.Chart#get}.
*
* Configuration options for the series are given in three levels. Options for
* all series in a chart are given in the
* [plotOptions.series](https://api.highcharts.com/highcharts/plotOptions.series)
* object. Then options for all series of a specific type
* are given in the plotOptions of that type, for example `plotOptions.line`.
* Next, options for one single series are given in the series array, or as
* arguments to `chart.addSeries`.
*
* The data in the series is stored in various arrays.
*
* - First, `series.options.data` contains all the original config options for
* each point whether added by options or methods like `series.addPoint`.
*
* - Next, `series.data` contains those values converted to points, but in case
* the series data length exceeds the `cropThreshold`, or if the data is
* grouped, `series.data` doesn't contain all the points. It only contains the
* points that have been created on demand.
*
* - Then there's `series.points` that contains all currently visible point
* objects. In case of cropping, the cropped-away points are not part of this
* array. The `series.points` array starts at `series.cropStart` compared to
* `series.data` and `series.options.data`. If however the series data is
* grouped, these can't be correlated one to one.
*
* - `series.xData` and `series.processedXData` contain clean x values,
* equivalent to `series.data` and `series.points`.
*
* - `series.yData` and `series.processedYData` contain clean y values,
* equivalent to `series.data` and `series.points`.
*
* @class
* @name Highcharts.Series
*
* @param {Highcharts.Chart} chart
* The chart instance.
*
* @param {Highcharts.SeriesOptionsType|object} options
* The series options.
*//**
* The line series is the base type and is therefor the series base prototype.
*
* @private
* @class
* @name Highcharts.seriesTypes.line
*
* @augments Highcharts.Series
*/
H.Series = H.seriesType(
'line',
/**
* Series options for specific data and the data itself. In TypeScript you
* have to cast the series options to specific series types, to get all
* possible options for a series.
*
* @example
* // TypeScript example
* Highcharts.chart('container', {
* series: [{
* color: '#06C',
* data: [[0, 1], [2, 3]]
* } as Highcharts.SeriesLineOptions ]
* });
*
* @type {Array<*>}
* @apioption series
*/
/**
* An id for the series. This can be used after render time to get a pointer
* to the series object through `chart.get()`.
*
* @sample {highcharts} highcharts/plotoptions/series-id/
* Get series by id
*
* @type {string}
* @since 1.2.0
* @apioption series.id
*/
/**
* The index of the series in the chart, affecting the internal index in the
* `chart.series` array, the visible Z index as well as the order in the
* legend.
*
* @type {number}
* @since 2.3.0
* @apioption series.index
*/
/**
* The sequential index of the series in the legend.
*
* @see [legend.reversed](#legend.reversed),
* [yAxis.reversedStacks](#yAxis.reversedStacks)
*
* @sample {highcharts|highstock} highcharts/series/legendindex/
* Legend in opposite order
*
* @type {number}
* @apioption series.legendIndex
*/
/**
* The name of the series as shown in the legend, tooltip etc.
*
* @sample {highcharts} highcharts/series/name/
* Series name
* @sample {highmaps} maps/demo/category-map/
* Series name
*
* @type {string}
* @apioption series.name
*/
/**
* This option allows grouping series in a stacked chart. The stack option
* can be a string or anything else, as long as the grouped series' stack
* options match each other after conversion into a string.
*
* @sample {highcharts} highcharts/series/stack/
* Stacked and grouped columns
*
* @type {string|object}
* @since 2.1
* @product highcharts highstock
* @apioption series.stack
*/
/**
* The type of series, for example `line` or `column`. By default, the
* series type is inherited from [chart.type](#chart.type), so unless the
* chart is a combination of series types, there is no need to set it on the
* series level.
*
* In TypeScript instead the `type` option must always be set.
*
* @sample {highcharts} highcharts/series/type/
* Line and column in the same chart
* @sample {highmaps} maps/demo/mapline-mappoint/
* Multiple types in the same map
*
* @type {string}
* @apioption series.type
*/
/**
* When using dual or multiple x axes, this number defines which xAxis the
* particular series is connected to. It refers to either the
* {@link #xAxis.id|axis id}
* or the index of the axis in the xAxis array, with 0 being the first.
*
* @type {number|string}
* @default 0
* @product highcharts highstock
* @apioption series.xAxis
*/
/**
* When using dual or multiple y axes, this number defines which yAxis the
* particular series is connected to. It refers to either the
* {@link #yAxis.id|axis id}
* or the index of the axis in the yAxis array, with 0 being the first.
*
* @sample {highcharts} highcharts/series/yaxis/
* Apply the column series to the secondary Y axis
*
* @type {number|string}
* @default 0
* @product highcharts highstock
* @apioption series.yAxis
*/
/**
* Define the visual z index of the series.
*
* @sample {highcharts} highcharts/plotoptions/series-zindex-default/
* With no z index, the series defined last are on top
* @sample {highcharts} highcharts/plotoptions/series-zindex/
* With a z index, the series with the highest z index is on top
* @sample {highstock} highcharts/plotoptions/series-zindex-default/
* With no z index, the series defined last are on top
* @sample {highstock} highcharts/plotoptions/series-zindex/
* With a z index, the series with the highest z index is on top
*
* @type {number}
* @product highcharts highstock
* @apioption series.zIndex
*/
null,
/**
* General options for all series types.
*
* @optionparent plotOptions.series
*/
{ // base series options
/**
* The SVG value used for the `stroke-linecap` and `stroke-linejoin`
* of a line graph. Round means that lines are rounded in the ends and
* bends.
*
* @type {Highcharts.SeriesLinecapValue}
* @default round
* @since 3.0.7
* @apioption plotOptions.line.linecap
*/
/**
* Pixel width of the graph line.
*
* @see In styled mode, the line stroke-width can be set with the
* `.highcharts-graph` class name.
*
* @sample {highcharts} highcharts/plotoptions/series-linewidth-general/
* On all series
* @sample {highcharts} highcharts/plotoptions/series-linewidth-specific/
* On one single series
*
* @product highcharts highstock
*
* @private
*/
lineWidth: 2,
/**
* For some series, there is a limit that shuts down initial animation
* by default when the total number of points in the chart is too high.
* For example, for a column chart and its derivatives, animation does
* not run if there is more than 250 points totally. To disable this
* cap, set `animationLimit` to `Infinity`.
*
* @type {number}
* @apioption plotOptions.series.animationLimit
*/
/**
* Allow this series' points to be selected by clicking on the graphic
* (columns, point markers, pie slices, map areas etc).
*
* The selected points can be handled by point select and unselect
* events, or collectively by the [getSelectedPoints](
* Highcharts.Chart#getSelectedPoints) function.
*
* And alternative way of selecting points is through dragging.
*
* @sample {highcharts} highcharts/plotoptions/series-allowpointselect-line/
* Line
* @sample {highcharts} highcharts/plotoptions/series-allowpointselect-column/
* Column
* @sample {highcharts} highcharts/plotoptions/series-allowpointselect-pie/
* Pie
* @sample {highcharts} highcharts/chart/events-selection-points/
* Select a range of points through a drag selection
* @sample {highmaps} maps/plotoptions/series-allowpointselect/
* Map area
* @sample {highmaps} maps/plotoptions/mapbubble-allowpointselect/
* Map bubble
*
* @since 1.2.0
*
* @private
*/
allowPointSelect: false,
/**
* If true, a checkbox is displayed next to the legend item to allow
* selecting the series. The state of the checkbox is determined by
* the `selected` option.
*
* @productdesc {highmaps}
* Note that if a `colorAxis` is defined, the color axis is represented
* in the legend, not the series.
*
* @sample {highcharts} highcharts/plotoptions/series-showcheckbox-true/
* Show select box
*
* @since 1.2.0
*
* @private
*/
showCheckbox: false,
/**
* Enable or disable the initial animation when a series is displayed.
* The animation can also be set as a configuration object. Please
* note that this option only applies to the initial animation of the
* series itself. For other animations, see [chart.animation](
* #chart.animation) and the animation parameter under the API methods.
* The following properties are supported:
*
* - `duration`: The duration of the animation in milliseconds.
*
* - `easing`: Can be a string reference to an easing function set on
* the `Math` object or a function. See the _Custom easing function_
* demo below.
*
* Due to poor performance, animation is disabled in old IE browsers
* for several chart types.
*
* @sample {highcharts} highcharts/plotoptions/series-animation-disabled/
* Animation disabled
* @sample {highcharts} highcharts/plotoptions/series-animation-slower/
* Slower animation
* @sample {highcharts} highcharts/plotoptions/series-animation-easing/
* Custom easing function
* @sample {highstock} stock/plotoptions/animation-slower/
* Slower animation
* @sample {highstock} stock/plotoptions/animation-easing/
* Custom easing function
* @sample {highmaps} maps/plotoptions/series-animation-true/
* Animation enabled on map series
* @sample {highmaps} maps/plotoptions/mapbubble-animation-false/
* Disabled on mapbubble series
*
* @type {boolean|Highcharts.AnimationOptionsObject}
* @default {highcharts} true
* @default {highstock} true
* @default {highmaps} false
*
* @private
*/
animation: {
/**
* @type {number}
* @default 1000
* @apioption plotOptions.series.animation.duration
*/
duration: 1000
},
/**
* An additional class name to apply to the series' graphical elements.
* This option does not replace default class names of the graphical
* element.
*
* @type {string}
* @since 5.0.0
* @apioption plotOptions.series.className
*/
/**
* Disable this option to allow series rendering in the whole plotting
* area.
*
* **Note:** Clipping should be always enabled when
* [chart.zoomType](#chart.zoomType) is set
*
* @sample {highcharts} highcharts/plotoptions/series-clip/
* Disabled clipping
*
* @default true
* @type {boolean}
* @since 3.0.0
* @apioption plotOptions.series.clip
*/
/**
* The main color of the series. In line type series it applies to the
* line and the point markers unless otherwise specified. In bar type
* series it applies to the bars unless a color is specified per point.
* The default value is pulled from the `options.colors` array.
*
* In styled mode, the color can be defined by the
* [colorIndex](#plotOptions.series.colorIndex) option. Also, the series
* color can be set with the `.highcharts-series`,
* `.highcharts-color-{n}`, `.highcharts-{type}-series` or
* `.highcharts-series-{n}` class, or individual classes given by the
* `className` option.
*
* @productdesc {highmaps}
* In maps, the series color is rarely used, as most choropleth maps use
* the color to denote the value of each point. The series color can
* however be used in a map with multiple series holding categorized
* data.
*
* @sample {highcharts} highcharts/plotoptions/series-color-general/
* General plot option
* @sample {highcharts} highcharts/plotoptions/series-color-specific/
* One specific series
* @sample {highcharts} highcharts/plotoptions/series-color-area/
* Area color
* @sample {highcharts} highcharts/series/infographic/
* Pattern fill
* @sample {highmaps} maps/demo/category-map/
* Category map by multiple series
*
* @type {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
* @apioption plotOptions.series.color
*/
/**
* Styled mode only. A specific color index to use for the series, so
* its graphic representations are given the class name
* `highcharts-color-{n}`.
*
* @type {number}
* @since 5.0.0
* @apioption plotOptions.series.colorIndex
*/
/**
* Whether to connect a graph line across null points, or render a gap
* between the two points on either side of the null.
*
* @sample {highcharts} highcharts/plotoptions/series-connectnulls-false/
* False by default
* @sample {highcharts} highcharts/plotoptions/series-connectnulls-true/
* True
*
* @type {boolean}
* @default false
* @product highcharts highstock
* @apioption plotOptions.series.connectNulls
*/
/**
* You can set the cursor to "pointer" if you have click events attached
* to the series, to signal to the user that the points and lines can
* be clicked.
*
* In styled mode, the series cursor can be set with the same classes
* as listed under [series.color](#plotOptions.series.color).
*
* @sample {highcharts} highcharts/plotoptions/series-cursor-line/
* On line graph
* @sample {highcharts} highcharts/plotoptions/series-cursor-column/
* On columns
* @sample {highcharts} highcharts/plotoptions/series-cursor-scatter/
* On scatter markers
* @sample {highstock} stock/plotoptions/cursor/
* Pointer on a line graph
* @sample {highmaps} maps/plotoptions/series-allowpointselect/
* Map area
* @sample {highmaps} maps/plotoptions/mapbubble-allowpointselect/
* Map bubble
*
* @type {string|Highcharts.CursorValue}
* @apioption plotOptions.series.cursor
*/
/**
* A name for the dash style to use for the graph, or for some series
* types the outline of each shape.
*
* In styled mode, the
* [stroke dash-array](https://jsfiddle.net/gh/get/library/pure/highcharts/highcharts/tree/master/samples/highcharts/css/series-dashstyle/)
* can be set with the same classes as listed under
* [series.color](#plotOptions.series.color).
*
* @sample {highcharts} highcharts/plotoptions/series-dashstyle-all/
* Possible values demonstrated
* @sample {highcharts} highcharts/plotoptions/series-dashstyle/
* Chart suitable for printing in black and white
* @sample {highstock} highcharts/plotoptions/series-dashstyle-all/
* Possible values demonstrated
* @sample {highmaps} highcharts/plotoptions/series-dashstyle-all/
* Possible values demonstrated
* @sample {highmaps} maps/plotoptions/series-dashstyle/
* Dotted borders on a map
*
* @type {Highcharts.DashStyleValue}
* @default Solid
* @since 2.1
* @apioption plotOptions.series.dashStyle
*/
/**
* Requires the Accessibility module.
*
* A description of the series to add to the screen reader information
* about the series.
*
* @type {string}
* @since 5.0.0
* @apioption plotOptions.series.description
*/
/**
* Enable or disable the mouse tracking for a specific series. This
* includes point tooltips and click events on graphs and points. For
* large datasets it improves performance.
*
* @sample {highcharts} highcharts/plotoptions/series-enablemousetracking-false/
* No mouse tracking
* @sample {highmaps} maps/plotoptions/series-enablemousetracking-false/
* No mouse tracking
*
* @type {boolean}
* @default true
* @apioption plotOptions.series.enableMouseTracking
*/
/**
* By default, series are exposed to screen readers as regions. By
* enabling this option, the series element itself will be exposed in
* the same way as the data points. This is useful if the series is not
* used as a grouping entity in the chart, but you still want to attach
* a description to the series.
*
* Requires the Accessibility module.
*
* @sample highcharts/accessibility/art-grants/
* Accessible data visualization
*
* @type {boolean}
* @since 5.0.12
* @apioption plotOptions.series.exposeElementToA11y
*/
/**
* Whether to use the Y extremes of the total chart width or only the
* zoomed area when zooming in on parts of the X axis. By default, the
* Y axis adjusts to the min and max of the visible data. Cartesian
* series only.
*
* @type {boolean}
* @default false
* @since 4.1.6
* @product highcharts highstock gantt
* @apioption plotOptions.series.getExtremesFromAll
*/
/**
* An array specifying which option maps to which key in the data point
* array. This makes it convenient to work with unstructured data arrays
* from different sources.
*
* @see [series.data](#series.line.data)
*
* @sample {highcharts|highstock} highcharts/series/data-keys/
* An extended data array with keys
* @sample {highcharts|highstock} highcharts/series/data-nested-keys/
* Nested keys used to access object properties
*
* @type {Array<string>}
* @since 4.1.6
* @apioption plotOptions.series.keys
*/
/**
* The line cap used for line ends and line joins on the graph.
*
* @type {Highcharts.SeriesLinecapValue}
* @default round
* @product highcharts highstock
* @apioption plotOptions.series.linecap
*/
/**
* The [id](#series.id) of another series to link to. Additionally,
* the value can be ":previous" to link to the previous series. When
* two series are linked, only the first one appears in the legend.
* Toggling the visibility of this also toggles the linked series.
*
* @sample {highcharts|highstock} highcharts/demo/arearange-line/
* Linked series
*
* @type {string}
* @since 3.0
* @product highcharts highstock gantt
* @apioption plotOptions.series.linkedTo
*/
/**
* Options for the corresponding navigator series if `showInNavigator`
* is `true` for this series. Available options are the same as any
* series, documented at [plotOptions](#plotOptions.series) and
* [series](#series).
*
* These options are merged with options in [navigator.series](
* #navigator.series), and will take precedence if the same option is
* defined both places.
*
* @see [navigator.series](#navigator.series)
*
* @type {Highcharts.PlotSeriesOptions}
* @since 5.0.0
* @product highstock
* @apioption plotOptions.series.navigatorOptions
*/
/**
* The color for the parts of the graph or points that are below the
* [threshold](#plotOptions.series.threshold).
*
* @see In styled mode, a negative color is applied by setting this option
* to `true` combined with the `.highcharts-negative` class name.
*
* @sample {highcharts} highcharts/plotoptions/series-negative-color/
* Spline, area and column
* @sample {highcharts} highcharts/plotoptions/arearange-negativecolor/
* Arearange
* @sample {highcharts} highcharts/css/series-negative-color/
* Styled mode
* @sample {highstock} highcharts/plotoptions/series-negative-color/
* Spline, area and column
* @sample {highstock} highcharts/plotoptions/arearange-negativecolor/
* Arearange
* @sample {highmaps} highcharts/plotoptions/series-negative-color/
* Spline, area and column
* @sample {highmaps} highcharts/plotoptions/arearange-negativecolor/
* Arearange
*
* @type {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
* @since 3.0
* @apioption plotOptions.series.negativeColor
*/
/**
* Same as
* [accessibility.pointDescriptionFormatter](#accessibility.pointDescriptionFormatter),
* but for an individual series. Overrides the chart wide configuration.
*
* @type {Function}
* @since 5.0.12
* @apioption plotOptions.series.pointDescriptionFormatter
*/
/**
* If no x values are given for the points in a series, `pointInterval`
* defines the interval of the x values. For example, if a series
* contains one value every decade starting from year 0, set
* `pointInterval` to `10`. In true `datetime` axes, the `pointInterval`
* is set in milliseconds.
*
* It can be also be combined with `pointIntervalUnit` to draw irregular
* time intervals.
*
* Please note that this options applies to the _series data_, not the
* interval of the axis ticks, which is independent.
*
* @sample {highcharts} highcharts/plotoptions/series-pointstart-datetime/
* Datetime X axis
* @sample {highstock} stock/plotoptions/pointinterval-pointstart/
* Using pointStart and pointInterval
*
* @type {number}
* @default 1
* @product highcharts highstock gantt
* @apioption plotOptions.series.pointInterval
*/
/**
* On datetime series, this allows for setting the
* [pointInterval](#plotOptions.series.pointInterval) to irregular time
* units, `day`, `month` and `year`. A day is usually the same as 24
* hours, but `pointIntervalUnit` also takes the DST crossover into
* consideration when dealing with local time. Combine this option with
* `pointInterval` to draw weeks, quarters, 6 months, 10 years etc.
*
* Please note that this options applies to the _series data_, not the
* interval of the axis ticks, which is independent.
*
* @sample {highcharts} highcharts/plotoptions/series-pointintervalunit/
* One point a month
* @sample {highstock} highcharts/plotoptions/series-pointintervalunit/
* One point a month
*
* @type {string}
* @since 4.1.0
* @product highcharts highstock gantt
* @validvalue ["day", "month", "year"]
* @apioption plotOptions.series.pointIntervalUnit
*/
/**
* Possible values: `"on"`, `"between"`, `number`.
*
* In a column chart, when pointPlacement is `"on"`, the point will not
* create any padding of the X axis. In a polar column chart this means
* that the first column points directly north. If the pointPlacement is
* `"between"`, the columns will be laid out between ticks. This is
* useful for example for visualising an amount between two points in
* time or in a certain sector of a polar chart.
*
* Since Highcharts 3.0.2, the point placement can also be numeric,
* where 0 is on the axis value, -0.5 is between this value and the
* previous, and 0.5 is between this value and the next. Unlike the
* textual options, numeric point placement options won't affect axis
* padding.
*
* Note that pointPlacement needs a [pointRange](
* #plotOptions.series.pointRange) to work. For column series this is
* computed, but for line-type series it needs to be set.
*
* For the `xrange` series type and gantt charts, if the Y axis is a
* category axis, the `pointPlacement` applies to the Y axis rather than
* the (typically datetime) X axis.
*
* Defaults to `undefined` in cartesian charts, `"between"` in polar
* charts.
*
* @see [xAxis.tickmarkPlacement](#xAxis.tickmarkPlacement)
*
* @sample {highcharts|highstock} highcharts/plotoptions/series-pointplacement-between/
* Between in a column chart
* @sample {highcharts|highstock} highcharts/plotoptions/series-pointplacement-numeric/
* Numeric placement for custom layout
* @sample {highcharts|highstock} maps/plotoptions/heatmap-pointplacement/
* Placement in heatmap
*
* @type {string|number}
* @since 2.3.0
* @product highcharts highstock gantt
* @apioption plotOptions.series.pointPlacement
*/
/**
* If no x values are given for the points in a series, pointStart
* defines on what value to start. For example, if a series contains one
* yearly value starting from 1945, set pointStart to 1945.
*
* @sample {highcharts} highcharts/plotoptions/series-pointstart-linear/
* Linear
* @sample {highcharts} highcharts/plotoptions/series-pointstart-datetime/
* Datetime
* @sample {highstock} stock/plotoptions/pointinterval-pointstart/
* Using pointStart and pointInterval
*
* @type {number}
* @default 0
* @product highcharts highstock gantt
* @apioption plotOptions.series.pointStart
*/
/**
* Whether to select the series initially. If `showCheckbox` is true,
* the checkbox next to the series name in the legend will be checked
* for a selected series.
*
* @sample {highcharts} highcharts/plotoptions/series-selected/
* One out of two series selected
*
* @type {boolean}
* @default false
* @since 1.2.0
* @apioption plotOptions.series.selected
*/
/**
* Whether to apply a drop shadow to the graph line. Since 2.3 the
* shadow can be an object configuration containing `color`, `offsetX`,
* `offsetY`, `opacity` and `width`.
*
* @sample {highcharts} highcharts/plotoptions/series-shadow/
* Shadow enabled
*
* @type {boolean|Highcharts.ShadowOptionsObject}
* @default false
* @apioption plotOptions.series.shadow
*/
/**
* Whether to display this particular series or series type in the
* legend. The default value is `true` for standalone series, `false`
* for linked series.
*
* @sample {highcharts} highcharts/plotoptions/series-showinlegend/
* One series in the legend, one hidden
*
* @type {boolean}
* @default true
* @apioption plotOptions.series.showInLegend
*/
/**
* Whether or not to show the series in the navigator. Takes precedence
* over [navigator.baseSeries](#navigator.baseSeries) if defined.
*
* @type {boolean}
* @since 5.0.0
* @product highstock
* @apioption plotOptions.series.showInNavigator
*/
/**
* If set to `true`, the accessibility module will skip past the points
* in this series for keyboard navigation.
*
* @type {boolean}
* @since 5.0.12
* @apioption plotOptions.series.skipKeyboardNavigation
*/
/**
* Whether to stack the values of each series on top of each other.
* Possible values are `undefined` to disable, `"normal"` to stack by
* value or `"percent"`. When stacking is enabled, data must be sorted
* in ascending X order. A special stacking option is with the
* streamgraph series type, where the stacking option is set to
* `"stream"`. The second one is `"overlap"`, which only applies to
* waterfall series.
*
* @see [yAxis.reversedStacks](#yAxis.reversedStacks)
*
* @sample {highcharts} highcharts/plotoptions/series-stacking-line/
* Line
* @sample {highcharts} highcharts/plotoptions/series-stacking-column/
* Column
* @sample {highcharts} highcharts/plotoptions/series-stacking-bar/
* Bar
* @sample {highcharts} highcharts/plotoptions/series-stacking-area/
* Area
* @sample {highcharts} highcharts/plotoptions/series-stacking-percent-line/
* Line
* @sample {highcharts} highcharts/plotoptions/series-stacking-percent-column/
* Column
* @sample {highcharts} highcharts/plotoptions/series-stacking-percent-bar/
* Bar
* @sample {highcharts} highcharts/plotoptions/series-stacking-percent-area/
* Area
* @sample {highcharts} highcharts/plotoptions/series-waterfall-with-normal-stacking
* Waterfall with normal stacking
* @sample {highcharts} highcharts/plotoptions/series-waterfall-with-overlap-stacking
* Waterfall with overlap stacking
* @sample {highstock} stock/plotoptions/stacking/
* Area
*
* @type {string}
* @product highcharts highstock
* @validvalue ["normal", "percent"]
* @apioption plotOptions.series.stacking
*/
/**
* Whether to apply steps to the line. Possible values are `left`,
* `center` and `right`.
*
* @sample {highcharts} highcharts/plotoptions/line-step/
* Different step line options
* @sample {highcharts} highcharts/plotoptions/area-step/
* Stepped, stacked area
* @sample {highstock} stock/plotoptions/line-step/
* Step line
*
* @type {string}
* @since 1.2.5
* @product highcharts highstock
* @validvalue ["left", "center", "right"]
* @apioption plotOptions.series.step
*/
/**
* The threshold, also called zero level or base level. For line type
* series this is only used in conjunction with
* [negativeColor](#plotOptions.series.negativeColor).
*
* @see [softThreshold](#plotOptions.series.softThreshold).
*
* @type {number}
* @default 0
* @since 3.0
* @product highcharts highstock
* @apioption plotOptions.series.threshold
*/
/**
* Set the initial visibility of the series.
*
* @sample {highcharts} highcharts/plotoptions/series-visible/
* Two series, one hidden and one visible
* @sample {highstock} stock/plotoptions/series-visibility/
* Hidden series
*
* @type {boolean}
* @default true
* @apioption plotOptions.series.visible
*/
/**
* Defines the Axis on which the zones are applied.
*
* @see [zones](#plotOptions.series.zones)
*
* @sample {highcharts} highcharts/series/color-zones-zoneaxis-x/
* Zones on the X-Axis
* @sample {highstock} highcharts/series/color-zones-zoneaxis-x/
* Zones on the X-Axis
*
* @type {string}
* @default y
* @since 4.1.0
* @product highcharts highstock
* @apioption plotOptions.series.zoneAxis
*/
/**
* General event handlers for the series items. These event hooks can
* also be attached to the series at run time using the
* `Highcharts.addEvent` function.
*
* @private
*/
events: {},
/**
* Fires after the series has finished its initial animation, or in case
* animation is disabled, immediately as the series is displayed.
*
* @sample {highcharts} highcharts/plotoptions/series-events-afteranimate/
* Show label after animate
* @sample {highstock} highcharts/plotoptions/series-events-afteranimate/
* Show label after animate
*
* @type {Highcharts.SeriesAfterAnimateCallbackFunction}
* @since 4.0
* @product highcharts highstock gantt
* @context Highcharts.Series
* @apioption plotOptions.series.events.afterAnimate
*/
/**
* Fires when the checkbox next to the series' name in the legend is
* clicked. One parameter, `event`, is passed to the function. The state
* of the checkbox is found by `event.checked`. The checked item is
* found by `event.item`. Return `false` to prevent the default action
* which is to toggle the select state of the series.
*
* @sample {highcharts} highcharts/plotoptions/series-events-checkboxclick/
* Alert checkbox status
*
* @type {Highcharts.SeriesCheckboxClickCallbackFunction}
* @since 1.2.0
* @context Highcharts.Series
* @apioption plotOptions.series.events.checkboxClick
*/
/**
* Fires when the series is clicked. One parameter, `event`, is passed
* to the function, containing common event information. Additionally,
* `event.point` holds a pointer to the nearest point on the graph.
*
* @sample {highcharts} highcharts/plotoptions/series-events-click/
* Alert click info
* @sample {highstock} stock/plotoptions/series-events-click/
* Alert click info
* @sample {highmaps} maps/plotoptions/series-events-click/
* Display click info in subtitle
*
* @type {Highcharts.SeriesClickCallbackFunction}
* @context Highcharts.Series
* @apioption plotOptions.series.events.click
*/
/**
* Fires when the series is hidden after chart generation time, either
* by clicking the legend item or by calling `.hide()`.
*
* @sample {highcharts} highcharts/plotoptions/series-events-hide/
* Alert when the series is hidden by clicking the legend item
*
* @type {Highcharts.SeriesHideCallbackFunction}
* @since 1.2.0
* @context Highcharts.Series
* @apioption plotOptions.series.events.hide
*/
/**
* Fires when the legend item belonging to the series is clicked. One
* parameter, `event`, is passed to the function. The default action
* is to toggle the visibility of the series. This can be prevented
* by returning `false` or calling `event.preventDefault()`.
*
* @sample {highcharts} highcharts/plotoptions/series-events-legenditemclick/
* Confirm hiding and showing
*
* @type {Highcharts.SeriesLegendItemClickCallbackFunction}
* @context Highcharts.Series
* @apioption plotOptions.series.events.legendItemClick
*/
/**
* Fires when the mouse leaves the graph. One parameter, `event`, is
* passed to the function, containing common event information. If the
* [stickyTracking](#plotOptions.series) option is true, `mouseOut`
* doesn't happen before the mouse enters another graph or leaves the
* plot area.
*
* @sample {highcharts} highcharts/plotoptions/series-events-mouseover-sticky/
* With sticky tracking by default
* @sample {highcharts} highcharts/plotoptions/series-events-mouseover-no-sticky/
* Without sticky tracking
*
* @type {Highcharts.SeriesMouseOutCallbackFunction}
* @context Highcharts.Series
* @apioption plotOptions.series.events.mouseOut
*/
/**
* Fires when the mouse enters the graph. One parameter, `event`, is
* passed to the function, containing common event information.
*
* @sample {highcharts} highcharts/plotoptions/series-even