text: /* *
   *
   *  (c) 2010-2019 Torstein Honsi
   *
   *  License: www.highcharts.com/license
   *
   *  !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
   *
   * */
  'use strict';
  import H from './Globals.js';
  /**
   * Options for the path on the Axis to be calculated.
   * @interface Highcharts.AxisPlotLinePathOptionsObject
   */ /**
  * Axis value.
  * @name Highcharts.AxisPlotLinePathOptionsObject#value
  * @type {number|undefined}
  */ /**
  * Line width used for calculation crisp line coordinates. Defaults to 1.
  * @name Highcharts.AxisPlotLinePathOptionsObject#lineWidth
  * @type {number|undefined}
  */ /**
  * If `false`, the function will return null when it falls outside the axis
  * bounds. If `true`, the function will return a path aligned to the plot area
  * sides if it falls outside. If `pass`, it will return a path outside.
  * @name Highcharts.AxisPlotLinePathOptionsObject#force
  * @type {string|boolean|undefined}
  */ /**
  * Used in Highstock. When `true`, plot paths (crosshair, plotLines, gridLines)
  * will be rendered on all axes when defined on the first axis.
  * @name Highcharts.AxisPlotLinePathOptionsObject#acrossPanes
  * @type {boolean|undefined}
  */ /**
  * Use old coordinates (for resizing and rescaling).
  * If not set, defaults to `false`.
  * @name Highcharts.AxisPlotLinePathOptionsObject#old
  * @type {boolean|undefined}
  */ /**
  * If given, return the plot line path of a pixel position on the axis.
  * @name Highcharts.AxisPlotLinePathOptionsObject#translatedValue
  * @type {number|undefined}
  */ /**
  * Used in Polar axes. Reverse the positions for concatenation of polygonal
  * plot bands
  * @name Highcharts.AxisPlotLinePathOptionsObject#reverse
  * @type {boolean|undefined}
  */
  /**
   * Options for crosshairs on axes.
   *
   * @product highstock
   *
   * @typedef {Highcharts.XAxisCrosshairOptions|Highcharts.YAxisCrosshairOptions} Highcharts.AxisCrosshairOptions
   */
  /**
   * @typedef {"navigator"|"pan"|"rangeSelectorButton"|"rangeSelectorInput"|"scrollbar"|"traverseUpButton"|"zoom"} Highcharts.AxisExtremesTriggerValue
   */
  /**
   * @callback Highcharts.AxisEventCallbackFunction
   *
   * @param {Highcharts.Axis} this
   */
  /**
   * @interface Highcharts.AxisLabelsFormatterContextObject
   */ /**
  * @name Highcharts.AxisLabelsFormatterContextObject#axis
  * @type {Highcharts.Axis}
  */ /**
  * @name Highcharts.AxisLabelsFormatterContextObject#chart
  * @type {Highcharts.Chart}
  */ /**
  * @name Highcharts.AxisLabelsFormatterContextObject#isFirst
  * @type {boolean}
  */ /**
  * @name Highcharts.AxisLabelsFormatterContextObject#isLast
  * @type {boolean}
  */ /**
  * @name Highcharts.AxisLabelsFormatterContextObject#pos
  * @type {number}
  */ /**
  * @name Highcharts.AxisLabelsFormatterContextObject#value
  * @type {number}
  */
  /**
   * Options for axes.
   *
   * @typedef {Highcharts.XAxisOptions|Highcharts.YAxisOptions|Highcharts.ZAxisOptions} Highcharts.AxisOptions
   */
  /**
   * @callback Highcharts.AxisPointBreakEventCallbackFunction
   *
   * @param {Highcharts.Axis} this
   *
   * @param {Highcharts.AxisPointBreakEventObject} evt
   */
  /**
   * @interface Highcharts.AxisPointBreakEventObject
   */ /**
  * @name Highcharts.AxisPointBreakEventObject#brk
  * @type {Highcharts.Dictionary<number>}
  */ /**
  * @name Highcharts.AxisPointBreakEventObject#point
  * @type {Highcharts.Point}
  */ /**
  * @name Highcharts.AxisPointBreakEventObject#preventDefault
  * @type {Function}
  */ /**
  * @name Highcharts.AxisPointBreakEventObject#target
  * @type {Highcharts.SVGElement}
  */ /**
  * @name Highcharts.AxisPointBreakEventObject#type
  * @type {"pointBreak"|"pointInBreak"}
  */
  /**
   * @callback Highcharts.AxisSetExtremesEventCallbackFunction
   *
   * @param {Highcharts.Axis} this
   *
   * @param {Highcharts.AxisSetExtremesEventObject} evt
   */
  /**
   * @interface Highcharts.AxisSetExtremesEventObject
   * @extends Highcharts.ExtremesObject
   */ /**
  * @name Highcharts.AxisSetExtremesEventObject#preventDefault
  * @type {Function}
  */ /**
  * @name Highcharts.AxisSetExtremesEventObject#target
  * @type {Highcharts.SVGElement}
  */ /**
  * @name Highcharts.AxisSetExtremesEventObject#trigger
  * @type {Highcharts.AxisExtremesTriggerValue|string}
  */ /**
  * @name Highcharts.AxisSetExtremesEventObject#type
  * @type {"setExtremes"}
  */
  /**
   * @callback Highcharts.AxisTickPositionerCallbackFunction
   *
   * @param {Highcharts.Axis} this
   *
   * @return {Array<number>}
   */
  /**
   * @interface Highcharts.AxisTickPositionsArray
   * @augments Array<number>
   */
  /**
   * @typedef {"high"|"low"|"middle"} Highcharts.AxisTitleAlignValue
   */
  /**
   * @typedef {Highcharts.XAxisTitleOptions|Highcharts.YAxisTitleOptions|Highcharts.ZAxisTitleOptions} Highcharts.AxisTitleOptions
   */
  /**
   * @typedef {"linear"|"logarithmic"|"datetime"|"category"|"treegrid"} Highcharts.AxisTypeValue
   */
  /**
   * The returned object literal from the {@link Highcharts.Axis#getExtremes}
   * function.
   *
   * @interface Highcharts.ExtremesObject
   */ /**
  * The maximum value of the axis' associated series.
  * @name Highcharts.ExtremesObject#dataMax
  * @type {number}
  */ /**
  * The minimum value of the axis' associated series.
  * @name Highcharts.ExtremesObject#dataMin
  * @type {number}
  */ /**
  * The maximum axis value, either automatic or set manually. If the `max` option
  * is not set, `maxPadding` is 0 and `endOnTick` is false, this value will be
  * the same as `dataMax`.
  * @name Highcharts.ExtremesObject#max
  * @type {number}
  */ /**
  * The minimum axis value, either automatic or set manually. If the `min` option
  * is not set, `minPadding` is 0 and `startOnTick` is false, this value will be
  * the same as `dataMin`.
  * @name Highcharts.ExtremesObject#min
  * @type {number}
  */ /**
  * The user defined maximum, either from the `max` option or from a zoom or
  * `setExtremes` action.
  * @name Highcharts.ExtremesObject#userMax
  * @type {number}
  */ /**
  * The user defined minimum, either from the `min` option or from a zoom or
  * `setExtremes` action.
  * @name Highcharts.ExtremesObject#userMin
  * @type {number}
  */
  /**
   * Formatter function for the text of a crosshair label.
   *
   * @callback Highcharts.XAxisCrosshairLabelFormatterCallbackFunction
   *
   * @param {Highcharts.Axis} this
   *        Axis context
   *
   * @param {number} value
   *        Y value of the data point
   *
   * @return {string}
   */
  import U from './Utilities.js';
  var defined = U.defined, isArray = U.isArray, isNumber = U.isNumber, isString = U.isString, objectEach = U.objectEach, splat = U.splat;
  import './Color.js';
  import './Options.js';
  import './Tick.js';
  var addEvent = H.addEvent, animObject = H.animObject, arrayMax = H.arrayMax, arrayMin = H.arrayMin, color = H.color, correctFloat = H.correctFloat, defaultOptions = H.defaultOptions, deg2rad = H.deg2rad, destroyObjectProperties = H.destroyObjectProperties, extend = H.extend, fireEvent = H.fireEvent, format = H.format, getMagnitude = H.getMagnitude, merge = H.merge, normalizeTickInterval = H.normalizeTickInterval, pick = H.pick, removeEvent = H.removeEvent, seriesTypes = H.seriesTypes, syncTimeout = H.syncTimeout, Tick = H.Tick;
  /* eslint-disable no-invalid-this, valid-jsdoc */
  /**
   * Create a new axis object. Called internally when instanciating a new chart or
   * adding axes by {@link Highcharts.Chart#addAxis}.
   *
   * A chart can have from 0 axes (pie chart) to multiples. In a normal, single
   * series cartesian chart, there is one X axis and one Y axis.
   *
   * The X axis or axes are referenced by {@link Highcharts.Chart.xAxis}, which is
   * an array of Axis objects. If there is only one axis, it can be referenced
   * through `chart.xAxis[0]`, and multiple axes have increasing indices. The same
   * pattern goes for Y axes.
   *
   * If you need to get the axes from a series object, use the `series.xAxis` and
   * `series.yAxis` properties. These are not arrays, as one series can only be
   * associated to one X and one Y axis.
   *
   * A third way to reference the axis programmatically is by `id`. Add an `id` in
   * the axis configuration options, and get the axis by
   * {@link Highcharts.Chart#get}.
   *
   * Configuration options for the axes are given in options.xAxis and
   * options.yAxis.
   *
   * @class
   * @name Highcharts.Axis
   *
   * @param {Highcharts.Chart} chart
   *        The Chart instance to apply the axis on.
   *
   * @param {Highcharts.AxisOptions} options
   *        Axis options.
   */
  var Axis = function () {
      this.init.apply(this, arguments);
      /* eslint-enable no-invalid-this, valid-jsdoc */
  };
  H.extend(Axis.prototype, /** @lends Highcharts.Axis.prototype */ {
      /**
       * The X axis or category axis. Normally this is the horizontal axis,
       * though if the chart is inverted this is the vertical axis. In case of
       * multiple axes, the xAxis node is an array of configuration objects.
       *
       * See the [Axis class](/class-reference/Highcharts.Axis) for programmatic
       * access to the axis.
       *
       * @productdesc {highmaps}
       * In Highmaps, the axis is hidden, but it is used behind the scenes to
       * control features like zooming and panning. Zooming is in effect the same
       * as setting the extremes of one of the exes.
       *
       * @type         {*|Array<*>}
       * @optionparent xAxis
       *
       * @private
       */
      defaultOptions: {
          /**
           * When using multiple axis, the ticks of two or more opposite axes
           * will automatically be aligned by adding ticks to the axis or axes
           * with the least ticks, as if `tickAmount` were specified.
           *
           * This can be prevented by setting `alignTicks` to false. If the grid
           * lines look messy, it's a good idea to hide them for the secondary
           * axis by setting `gridLineWidth` to 0.
           *
           * If `startOnTick` or `endOnTick` in an Axis options are set to false,
           * then the `alignTicks ` will be disabled for the Axis.
           *
           * Disabled for logarithmic axes.
           *
           * @type      {boolean}
           * @default   true
           * @product   highcharts highstock gantt
           * @apioption xAxis.alignTicks
           */
          /**
           * Whether to allow decimals in this axis' ticks. When counting
           * integers, like persons or hits on a web page, decimals should
           * be avoided in the labels.
           *
           * @see [minTickInterval](#xAxis.minTickInterval)
           *
           * @sample {highcharts|highstock} highcharts/yaxis/allowdecimals-true/
           *         True by default
           * @sample {highcharts|highstock} highcharts/yaxis/allowdecimals-false/
           *         False
           *
           * @type      {boolean}
           * @default   true
           * @since     2.0
           * @apioption xAxis.allowDecimals
           */
          /**
           * When using an alternate grid color, a band is painted across the
           * plot area between every other grid line.
           *
           * @sample {highcharts} highcharts/yaxis/alternategridcolor/
           *         Alternate grid color on the Y axis
           * @sample {highstock} stock/xaxis/alternategridcolor/
           *         Alternate grid color on the Y axis
           *
           * @type      {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
           * @apioption xAxis.alternateGridColor
           */
          /**
           * An array defining breaks in the axis, the sections defined will be
           * left out and all the points shifted closer to each other.
           *
           * @productdesc {highcharts}
           * Requires that the broken-axis.js module is loaded.
           *
           * @sample {highcharts} highcharts/axisbreak/break-simple/
           *         Simple break
           * @sample {highcharts|highstock} highcharts/axisbreak/break-visualized/
           *         Advanced with callback
           * @sample {highstock} stock/demo/intraday-breaks/
           *         Break on nights and weekends
           *
           * @type      {Array<*>}
           * @since     4.1.0
           * @product   highcharts highstock gantt
           * @apioption xAxis.breaks
           */
          /**
           * A number indicating how much space should be left between the start
           * and the end of the break. The break size is given in axis units,
           * so for instance on a `datetime` axis, a break size of 3600000 would
           * indicate the equivalent of an hour.
           *
           * @type      {number}
           * @default   0
           * @since     4.1.0
           * @product   highcharts highstock gantt
           * @apioption xAxis.breaks.breakSize
           */
          /**
           * The point where the break starts.
           *
           * @type      {number}
           * @since     4.1.0
           * @product   highcharts highstock gantt
           * @apioption xAxis.breaks.from
           */
          /**
           * Defines an interval after which the break appears again. By default
           * the breaks do not repeat.
           *
           * @type      {number}
           * @default   0
           * @since     4.1.0
           * @product   highcharts highstock gantt
           * @apioption xAxis.breaks.repeat
           */
          /**
           * The point where the break ends.
           *
           * @type      {number}
           * @since     4.1.0
           * @product   highcharts highstock gantt
           * @apioption xAxis.breaks.to
           */
          /**
           * If categories are present for the xAxis, names are used instead of
           * numbers for that axis. Since Highcharts 3.0, categories can also
           * be extracted by giving each point a [name](#series.data) and setting
           * axis [type](#xAxis.type) to `category`. However, if you have multiple
           * series, best practice remains defining the `categories` array.
           *
           * Example:
           *
           * <pre>categories: ['Apples', 'Bananas', 'Oranges']</pre>
           *
           * @sample {highcharts} highcharts/demo/line-labels/
           *         With
           * @sample {highcharts} highcharts/xaxis/categories/
           *         Without
           *
           * @type      {Array<string>}
           * @product   highcharts gantt
           * @apioption xAxis.categories
           */
          /**
           * The highest allowed value for automatically computed axis extremes.
           *
           * @see [floor](#xAxis.floor)
           *
           * @sample {highcharts|highstock} highcharts/yaxis/floor-ceiling/
           *         Floor and ceiling
           *
           * @type       {number}
           * @since      4.0
           * @product    highcharts highstock gantt
           * @apioption  xAxis.ceiling
           */
          /**
           * A class name that opens for styling the axis by CSS, especially in
           * Highcharts styled mode. The class name is applied to group elements
           * for the grid, axis elements and labels.
           *
           * @sample {highcharts|highstock|highmaps} highcharts/css/axis/
           *         Multiple axes with separate styling
           *
           * @type      {string}
           * @since     5.0.0
           * @apioption xAxis.className
           */
          /**
           * Configure a crosshair that follows either the mouse pointer or the
           * hovered point.
           *
           * In styled mode, the crosshairs are styled in the
           * `.highcharts-crosshair`, `.highcharts-crosshair-thin` or
           * `.highcharts-xaxis-category` classes.
           *
           * @productdesc {highstock}
           * In Highstock, by default, the crosshair is enabled on the X axis and
           * disabled on the Y axis.
           *
           * @sample {highcharts} highcharts/xaxis/crosshair-both/
           *         Crosshair on both axes
           * @sample {highstock} stock/xaxis/crosshairs-xy/
           *         Crosshair on both axes
           * @sample {highmaps} highcharts/xaxis/crosshair-both/
           *         Crosshair on both axes
           *
           * @type      {boolean|*}
           * @default   false
           * @since     4.1
           * @apioption xAxis.crosshair
           */
          /**
           * A class name for the crosshair, especially as a hook for styling.
           *
           * @type      {string}
           * @since     5.0.0
           * @apioption xAxis.crosshair.className
           */
          /**
           * The color of the crosshair. Defaults to `#cccccc` for numeric and
           * datetime axes, and `rgba(204,214,235,0.25)` for category axes, where
           * the crosshair by default highlights the whole category.
           *
           * @sample {highcharts|highstock|highmaps} highcharts/xaxis/crosshair-customized/
           *         Customized crosshairs
           *
           * @type      {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
           * @default   #cccccc
           * @since     4.1
           * @apioption xAxis.crosshair.color
           */
          /**
           * The dash style for the crosshair. See
           * [series.dashStyle](#plotOptions.series.dashStyle)
           * for possible values.
           *
           * @sample {highcharts|highmaps} highcharts/xaxis/crosshair-dotted/
           *         Dotted crosshair
           * @sample {highstock} stock/xaxis/crosshair-dashed/
           *         Dashed X axis crosshair
           *
           * @type      {Highcharts.DashStyleValue}
           * @default   Solid
           * @since     4.1
           * @apioption xAxis.crosshair.dashStyle
           */
          /**
           * A label on the axis next to the crosshair.
           *
           * In styled mode, the label is styled with the
           * `.highcharts-crosshair-label` class.
           *
           * @sample {highstock} stock/xaxis/crosshair-label/
           *         Crosshair labels
           * @sample {highstock} highcharts/css/crosshair-label/
           *         Style mode
           *
           * @since     2.1
           * @product   highstock
           * @apioption xAxis.crosshair.label
           */
          /**
           * Alignment of the label compared to the axis. Defaults to `"left"` for
           * right-side axes, `"right"` for left-side axes and `"center"` for
           * horizontal axes.
           *
           * @type      {Highcharts.AlignValue}
           * @since     2.1
           * @product   highstock
           * @apioption xAxis.crosshair.label.align
           */
          /**
           * The background color for the label. Defaults to the related series
           * color, or `#666666` if that is not available.
           *
           * @type      {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
           * @since     2.1
           * @product   highstock
           * @apioption xAxis.crosshair.label.backgroundColor
           */
          /**
           * The border color for the crosshair label
           *
           * @type      {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
           * @since     2.1
           * @product   highstock
           * @apioption xAxis.crosshair.label.borderColor
           */
          /**
           * The border corner radius of the crosshair label.
           *
           * @type      {number}
           * @default   3
           * @since     2.1.10
           * @product   highstock
           * @apioption xAxis.crosshair.label.borderRadius
           */
          /**
           * The border width for the crosshair label.
           *
           * @type      {number}
           * @default   0
           * @since     2.1
           * @product   highstock
           * @apioption xAxis.crosshair.label.borderWidth
           */
          /**
           * A format string for the crosshair label. Defaults to `{value}` for
           * numeric axes and `{value:%b %d, %Y}` for datetime axes.
           *
           * @type      {string}
           * @since     2.1
           * @product   highstock
           * @apioption xAxis.crosshair.label.format
           */
          /**
           * Formatter function for the label text.
           *
           * @type      {Highcharts.XAxisCrosshairLabelFormatterCallbackFunction}
           * @since     2.1
           * @product   highstock
           * @apioption xAxis.crosshair.label.formatter
           */
          /**
           * Padding inside the crosshair label.
           *
           * @type      {number}
           * @default   8
           * @since     2.1
           * @product   highstock
           * @apioption xAxis.crosshair.label.padding
           */
          /**
           * The shape to use for the label box.
           *
           * @type      {string}
           * @default   callout
           * @since     2.1
           * @product   highstock
           * @apioption xAxis.crosshair.label.shape
           */
          /**
           * Text styles for the crosshair label.
           *
           * @type      {Highcharts.CSSObject}
           * @default   {"color": "white", "fontWeight": "normal", "fontSize": "11px", "textAlign": "center"}
           * @since     2.1
           * @product   highstock
           * @apioption xAxis.crosshair.label.style
           */
          /**
           * Whether the crosshair should snap to the point or follow the pointer
           * independent of points.
           *
           * @sample {highcharts|highstock} highcharts/xaxis/crosshair-snap-false/
           *         True by default
           * @sample {highmaps} maps/demo/latlon-advanced/
           *         Snap is false
           *
           * @type      {boolean}
           * @default   true
           * @since     4.1
           * @apioption xAxis.crosshair.snap
           */
          /**
           * The pixel width of the crosshair. Defaults to 1 for numeric or
           * datetime axes, and for one category width for category axes.
           *
           * @sample {highcharts} highcharts/xaxis/crosshair-customized/
           *         Customized crosshairs
           * @sample {highstock} highcharts/xaxis/crosshair-customized/
           *         Customized crosshairs
           * @sample {highmaps} highcharts/xaxis/crosshair-customized/
           *         Customized crosshairs
           *
           * @type      {number}
           * @default   1
           * @since     4.1
           * @apioption xAxis.crosshair.width
           */
          /**
           * The Z index of the crosshair. Higher Z indices allow drawing the
           * crosshair on top of the series or behind the grid lines.
           *
           * @type      {number}
           * @default   2
           * @since     4.1
           * @apioption xAxis.crosshair.zIndex
           */
          /**
           * Whether to zoom axis. If `chart.zoomType` is set, the option allows
           * to disable zooming on an individual axis.
           *
           * @sample {highcharts} highcharts/xaxis/zoomenabled/
           *         Zoom enabled is false
           *
           *
           * @type      {boolean}
           * @default   enabled
           * @apioption xAxis.zoomEnabled
           */
          /**
           * For a datetime axis, the scale will automatically adjust to the
           * appropriate unit. This member gives the default string
           * representations used for each unit. For intermediate values,
           * different units may be used, for example the `day` unit can be used
           * on midnight and `hour` unit be used for intermediate values on the
           * same axis. For an overview of the replacement codes, see
           * [dateFormat](/class-reference/Highcharts#dateFormat). Defaults to:
           *
           * <pre>{
           *     millisecond: '%H:%M:%S.%L',
           *     second: '%H:%M:%S',
           *     minute: '%H:%M',
           *     hour: '%H:%M',
           *     day: '%e. %b',
           *     week: '%e. %b',
           *     month: '%b \'%y',
           *     year: '%Y'
           * }</pre>
           *
           * @sample {highcharts} highcharts/xaxis/datetimelabelformats/
           *         Different day format on X axis
           * @sample {highstock} stock/xaxis/datetimelabelformats/
           *         More information in x axis labels
           *
           * @product highcharts highstock gantt
           */
          dateTimeLabelFormats: {
              /**
               * @type {string|*}
               */
              millisecond: {
                  main: '%H:%M:%S.%L',
                  range: false
              },
              /**
               * @type {string|*}
               */
              second: {
                  main: '%H:%M:%S',
                  range: false
              },
              /**
               * @type {string|*}
               */
              minute: {
                  main: '%H:%M',
                  range: false
              },
              /**
               * @type {string|*}
               */
              hour: {
                  main: '%H:%M',
                  range: false
              },
              /**
               * @type {string|*}
               */
              day: {
                  main: '%e. %b'
              },
              /**
               * @type {string|*}
               */
              week: {
                  main: '%e. %b'
              },
              /**
               * @type {string|*}
               */
              month: {
                  main: '%b \'%y'
              },
              /**
               * @type {string|*}
               */
              year: {
                  main: '%Y'
              }
          },
          /**
           * Whether to force the axis to end on a tick. Use this option with
           * the `maxPadding` option to control the axis end.
           *
           * @productdesc {highstock}
           * In Highstock, `endOnTick` is always false when the navigator is
           * enabled, to prevent jumpy scrolling.
           *
           * @sample {highcharts} highcharts/chart/reflow-true/
           *         True by default
           * @sample {highcharts} highcharts/yaxis/endontick/
           *         False
           * @sample {highstock} stock/demo/basic-line/
           *         True by default
           * @sample {highstock} stock/xaxis/endontick/
           *         False
           *
           * @since 1.2.0
           */
          endOnTick: false,
          /**
           * Event handlers for the axis.
           *
           * @type      {*}
           * @apioption xAxis.events
           */
          /**
           * An event fired after the breaks have rendered.
           *
           * @see [breaks](#xAxis.breaks)
           *
           * @sample {highcharts} highcharts/axisbreak/break-event/
           *         AfterBreak Event
           *
           * @type      {Highcharts.AxisEventCallbackFunction}
           * @since     4.1.0
           * @product   highcharts gantt
           * @apioption xAxis.events.afterBreaks
           */
          /**
           * As opposed to the `setExtremes` event, this event fires after the
           * final min and max values are computed and corrected for `minRange`.
           *
           * Fires when the minimum and maximum is set for the axis, either by
           * calling the `.setExtremes()` method or by selecting an area in the
           * chart. One parameter, `event`, is passed to the function, containing
           * common event information.
           *
           * The new user set minimum and maximum values can be found by
           * `event.min` and `event.max`. These reflect the axis minimum and
           * maximum in axis values. The actual data extremes are found in
           * `event.dataMin` and `event.dataMax`.
           *
           * @type      {Highcharts.AxisSetExtremesEventCallbackFunction}
           * @since     2.3
           * @context   Highcharts.Axis
           * @apioption xAxis.events.afterSetExtremes
           */
          /**
           * An event fired when a break from this axis occurs on a point.
           *
           * @see [breaks](#xAxis.breaks)
           *
           * @sample {highcharts} highcharts/axisbreak/break-visualized/
           *         Visualization of a Break
           *
           * @type      {Highcharts.AxisPointBreakEventCallbackFunction}
           * @since     4.1.0
           * @product   highcharts gantt
           * @context   Highcharts.Axis
           * @apioption xAxis.events.pointBreak
           */
          /**
           * An event fired when a point falls inside a break from this axis.
           *
           * @type      {Highcharts.AxisPointBreakEventCallbackFunction}
           * @product   highcharts highstock gantt
           * @context   Highcharts.Axis
           * @apioption xAxis.events.pointInBreak
           */
          /**
           * Fires when the minimum and maximum is set for the axis, either by
           * calling the `.setExtremes()` method or by selecting an area in the
           * chart. One parameter, `event`, is passed to the function,
           * containing common event information.
           *
           * The new user set minimum and maximum values can be found by
           * `event.min` and `event.max`. These reflect the axis minimum and
           * maximum in data values. When an axis is zoomed all the way out from
           * the "Reset zoom" button, `event.min` and `event.max` are null, and
           * the new extremes are set based on `this.dataMin` and `this.dataMax`.
           *
           * @sample {highstock} stock/xaxis/events-setextremes/
           *         Log new extremes on x axis
           *
           * @type      {Highcharts.AxisSetExtremesEventCallbackFunction}
           * @since     1.2.0
           * @context   Highcharts.Axis
           * @apioption xAxis.events.setExtremes
           */
          /**
           * The lowest allowed value for automatically computed axis extremes.
           *
           * @see [ceiling](#yAxis.ceiling)
           *
           * @sample {highcharts} highcharts/yaxis/floor-ceiling/
           *         Floor and ceiling
           * @sample {highstock} stock/demo/lazy-loading/
           *         Prevent negative stock price on Y axis
           *
           * @type      {number}
           * @since     4.0
           * @product   highcharts highstock gantt
           * @apioption xAxis.floor
           */
          /**
           * The dash or dot style of the grid lines. For possible values, see
           * [this demonstration](https://jsfiddle.net/gh/get/library/pure/highcharts/highcharts/tree/master/samples/highcharts/plotoptions/series-dashstyle-all/).
           *
           * @sample {highcharts} highcharts/yaxis/gridlinedashstyle/
           *         Long dashes
           * @sample {highstock} stock/xaxis/gridlinedashstyle/
           *         Long dashes
           *
           * @type      {Highcharts.DashStyleValue}
           * @default   Solid
           * @since     1.2
           * @apioption xAxis.gridLineDashStyle
           */
          /**
           * The Z index of the grid lines.
           *
           * @sample {highcharts|highstock} highcharts/xaxis/gridzindex/
           *         A Z index of 4 renders the grid above the graph
           *
           * @type      {number}
           * @default   1
           * @product   highcharts highstock gantt
           * @apioption xAxis.gridZIndex
           */
          /**
           * An id for the axis. This can be used after render time to get
           * a pointer to the axis object through `chart.get()`.
           *
           * @sample {highcharts} highcharts/xaxis/id/
           *         Get the object
           * @sample {highstock} stock/xaxis/id/
           *         Get the object
           *
           * @type      {string}
           * @since     1.2.0
           * @apioption xAxis.id
           */
          /**
           * The axis labels show the number or category for each tick.
           *
           * @productdesc {highmaps}
           * X and Y axis labels are by default disabled in Highmaps, but the
           * functionality is inherited from Highcharts and used on `colorAxis`,
           * and can be enabled on X and Y axes too.
           */
          labels: {
              /**
               * What part of the string the given position is anchored to.
               * If `left`, the left side of the string is at the axis position.
               * Can be one of `"left"`, `"center"` or `"right"`. Defaults to
               * an intelligent guess based on which side of the chart the axis
               * is on and the rotation of the label.
               *
               * @see [reserveSpace](#xAxis.labels.reserveSpace)
               *
               * @sample {highcharts} highcharts/xaxis/labels-align-left/
               *         Left
               * @sample {highcharts} highcharts/xaxis/labels-align-right/
               *         Right
               * @sample {highcharts} highcharts/xaxis/labels-reservespace-true/
               *         Left-aligned labels on a vertical category axis
               *
               * @type       {Highcharts.AlignValue}
               * @apioption  xAxis.labels.align
               */
              /**
               * For horizontal axes, the allowed degrees of label rotation
               * to prevent overlapping labels. If there is enough space,
               * labels are not rotated. As the chart gets narrower, it
               * will start rotating the labels -45 degrees, then remove
               * every second label and try again with rotations 0 and -45 etc.
               * Set it to `false` to disable rotation, which will
               * cause the labels to word-wrap if possible.
               *
               * @sample {highcharts|highstock} highcharts/xaxis/labels-autorotation-default/
               *         Default auto rotation of 0 or -45
               * @sample {highcharts|highstock} highcharts/xaxis/labels-autorotation-0-90/
               *         Custom graded auto rotation
               *
               * @type      {Array<number>|false}
               * @default   [-45]
               * @since     4.1.0
               * @product   highcharts highstock gantt
               * @apioption xAxis.labels.autoRotation
               */
              /**
               * When each category width is more than this many pixels, we don't
               * apply auto rotation. Instead, we lay out the axis label with word
               * wrap. A lower limit makes sense when the label contains multiple
               * short words that don't extend the available horizontal space for
               * each label.
               *
               * @sample {highcharts} highcharts/xaxis/labels-autorotationlimit/
               *         Lower limit
               *
               * @type      {number}
               * @default   80
               * @since     4.1.5
               * @product   highcharts gantt
               * @apioption xAxis.labels.autoRotationLimit
               */
              /**
               * Polar charts only. The label's pixel distance from the perimeter
               * of the plot area.
               *
               * @type      {number}
               * @default   15
               * @product   highcharts gantt
               * @apioption xAxis.labels.distance
               */
              /**
               * Enable or disable the axis labels.
               *
               * @sample {highcharts} highcharts/xaxis/labels-enabled/
               *         X axis labels disabled
               * @sample {highstock} stock/xaxis/labels-enabled/
               *         X axis labels disabled
               *
               * @default {highcharts|highstock|gantt} true
               * @default {highmaps} false
               */
              enabled: true,
              /**
               * A [format string](https://www.highcharts.com/docs/chart-concepts/labels-and-string-formatting)
               * for the axis label.
               *
               * @sample {highcharts|highstock} highcharts/yaxis/labels-format/
               *         Add units to Y axis label
               *
               * @type      {string}
               * @default   {value}
               * @since     3.0
               * @apioption xAxis.labels.format
               */
              /**
               * Callback JavaScript function to format the label. The value
               * is given by `this.value`. Additional properties for `this` are
               * `axis`, `chart`, `isFirst` and `isLast`. The value of the default
               * label formatter can be retrieved by calling
               * `this.axis.defaultLabelFormatter.call(this)` within the function.
               *
               * Defaults to:
               *
               * <pre>function() {
               *     return this.value;
               * }</pre>
               *
               * @sample {highcharts} highcharts/xaxis/labels-formatter-linked/
               *         Linked category names
               * @sample {highcharts} highcharts/xaxis/labels-formatter-extended/
               *         Modified numeric labels
               * @sample {highstock} stock/xaxis/labels-formatter/
               *         Added units on Y axis
               *
               * @type      {Highcharts.FormatterCallbackFunction<Highcharts.AxisLabelsFormatterContextObject>}
               * @apioption xAxis.labels.formatter
               */
              /**
               * The number of pixels to indent the labels per level in a treegrid
               * axis.
               *
               * @sample gantt/treegrid-axis/demo
               *         Indentation 10px by default.
               * @sample gantt/treegrid-axis/indentation-0px
               *         Indentation set to 0px.
               *
               * @product gantt
               */
              indentation: 10,
              /**
               * Horizontal axis only. When `staggerLines` is not set,
               * `maxStaggerLines` defines how many lines the axis is allowed to
               * add to automatically avoid overlapping X labels. Set to `1` to
               * disable overlap detection.
               *
               * @deprecated
               * @type      {number}
               * @default   5
               * @since     1.3.3
               * @apioption xAxis.labels.maxStaggerLines
               */
              /**
               * How to handle overflowing labels on horizontal axis. If set to
               * `"allow"`, it will not be aligned at all. By default it
               * `"justify"` labels inside the chart area. If there is room to
               * move it, it will be aligned to the edge, else it will be removed.
               *
               * @type       {string}
               * @default    justify
               * @since      2.2.5
               * @validvalue ["allow", "justify"]
               * @apioption  xAxis.labels.overflow
               */
              /**
               * The pixel padding for axis labels, to ensure white space between
               * them.
               *
               * @type      {number}
               * @default   5
               * @product   highcharts gantt
               * @apioption xAxis.labels.padding
               */
              /**
               * Whether to reserve space for the labels. By default, space is
               * reserved for the labels in these cases:
               *
               * * On all horizontal axes.
               * * On vertical axes if `label.align` is `right` on a left-side
               * axis or `left` on a right-side axis.
               * * On vertical axes if `label.align` is `center`.
               *
               * This can be turned off when for example the labels are rendered
               * inside the plot area instead of outside.
               *
               * @see [labels.align](#xAxis.labels.align)
               *
               * @sample {highcharts} highcharts/xaxis/labels-reservespace/
               *         No reserved space, labels inside plot
               * @sample {highcharts} highcharts/xaxis/labels-reservespace-true/
               *         Left-aligned labels on a vertical category axis
               *
               * @type      {boolean}
               * @since     4.1.10
               * @product   highcharts gantt
               * @apioption xAxis.labels.reserveSpace
               */
              /**
               * Rotation of the labels in degrees.
               *
               * @sample {highcharts} highcharts/xaxis/labels-rotation/
               *         X axis labels rotated 90°
               *
               * @type      {number}
               * @default   0
               * @apioption xAxis.labels.rotation
               */
              /**
               * Horizontal axes only. The number of lines to spread the labels
               * over to make room or tighter labels.
               *
               * @sample {highcharts} highcharts/xaxis/labels-staggerlines/
               *         Show labels over two lines
               * @sample {highstock} stock/xaxis/labels-staggerlines/
               *         Show labels over two lines
               *
               * @type      {number}
               * @since     2.1
               * @apioption xAxis.labels.staggerLines
               */
              /**
               * To show only every _n_'th label on the axis, set the step to _n_.
               * Setting the step to 2 shows every other label.
               *
               * By default, the step is calculated automatically to avoid
               * overlap. To prevent this, set it to 1\. This usually only
               * happens on a category axis, and is often a sign that you have
               * chosen the wrong axis type.
               *
               * Read more at
               * [Axis docs](https://www.highcharts.com/docs/chart-concepts/axes)
               * => What axis should I use?
               *
               * @sample {highcharts} highcharts/xaxis/labels-step/
               *         Showing only every other axis label on a categorized
               *         x-axis
               * @sample {highcharts} highcharts/xaxis/labels-step-auto/
               *         Auto steps on a category axis
               *
               * @type      {number}
               * @since     2.1
               * @apioption xAxis.labels.step
               */
              /**
               * Whether to [use HTML](https://www.highcharts.com/docs/chart-concepts/labels-and-string-formatting#html)
               * to render the labels.
               *
               * @type      {boolean}
               * @default   false
               * @apioption xAxis.labels.useHTML
               */
              /**
               * The x position offset of the label relative to the tick position
               * on the axis.
               *
               * @sample {highcharts} highcharts/xaxis/labels-x/
               *         Y axis labels placed on grid lines
               */
              x: 0,
              /**
               * The y position offset of the label relative to the tick position
               * on the axis. The default makes it adapt to the font size on
               * bottom axis.
               *
               * @sample {highcharts} highcharts/xaxis/labels-x/
               *         Y axis labels placed on grid lines
               *
               * @type      {number}
               * @apioption xAxis.labels.y
               */
              /**
               * The Z index for the axis labels.
               *
               * @type      {number}
               * @default   7
               * @apioption xAxis.labels.zIndex
               */
              /**
               * CSS styles for the label. Use `whiteSpace: 'nowrap'` to prevent
               * wrapping of category labels. Use `textOverflow: 'none'` to
               * prevent ellipsis (dots).
               *
               * In styled mode, the labels are styled with the
               * `.highcharts-axis-labels` class.
               *
               * @sample {highcharts} highcharts/xaxis/labels-style/
               *         Red X axis labels
               *
               * @type      {Highcharts.CSSObject}
               */
              style: {
                  /** @internal */
                  color: '#666666',
                  /** @internal */
                  cursor: 'default',
                  /** @internal */
                  fontSize: '11px'
              }
          },
          /**
           * Index of another axis that this axis is linked to. When an axis is
           * linked to a master axis, it will take the same extremes as
           * the master, but as assigned by min or max or by setExtremes.
           * It can be used to show additional info, or to ease reading the
           * chart by duplicating the scales.
           *
           * @sample {highcharts} highcharts/xaxis/linkedto/
           *         Different string formats of the same date
           * @sample {highcharts} highcharts/yaxis/linkedto/
           *         Y values on both sides
           *
           * @type      {number}
           * @since     2.0.2
           * @product   highcharts highstock gantt
           * @apioption xAxis.linkedTo
           */
          /**
           * The maximum value of the axis. If `null`, the max value is
           * automatically calculated.
           *
           * If the [endOnTick](#yAxis.endOnTick) option is true, the `max` value
           * might be rounded up.
           *
           * If a [tickAmount](#yAxis.tickAmount) is set, the axis may be extended
           * beyond the set max in order to reach the given number of ticks. The
           * same may happen in a chart with multiple axes, determined by [chart.
           * alignTicks](#chart), where a `tickAmount` is applied internally.
           *
           * @sample {highcharts} highcharts/yaxis/max-200/
           *         Y axis max of 200
           * @sample {highcharts} highcharts/yaxis/max-logarithmic/
           *         Y axis max on logarithmic axis
           * @sample {highstock} stock/xaxis/min-max/
           *         Fixed min and max on X axis
           * @sample {highmaps} maps/axis/min-max/
           *         Pre-zoomed to a specific area
           *
           * @type      {number|null}
           * @apioption xAxis.max
           */
          /**
           * Padding of the max value relative to the length of the axis. A
           * padding of 0.05 will make a 100px axis 5px longer. This is useful
           * when you don't want the highest data value to appear on the edge
           * of the plot area. When the axis' `max` option is set or a max extreme
           * is set using `axis.setExtremes()`, the maxPadding will be ignored.
           *
           * @sample {highcharts} highcharts/yaxis/maxpadding/
           *         Max padding of 0.25 on y axis
           * @sample {highstock} stock/xaxis/minpadding-maxpadding/
           *         Greater min- and maxPadding
           * @sample {highmaps} maps/chart/plotbackgroundcolor-gradient/
           *         Add some padding
           *
           * @default   {highcharts} 0.01
           * @default   {highstock|highmaps} 0
           * @since     1.2.0
           */
          maxPadding: 0.01,
          /**
           * Deprecated. Use `minRange` instead.
           *
           * @deprecated
           * @type      {number}
           * @product   highcharts highstock
           * @apioption xAxis.maxZoom
           */
          /**
           * The minimum value of the axis. If `null` the min value is
           * automatically calculated.
           *
           * If the [startOnTick](#yAxis.startOnTick) option is true (default),
           * the `min` value might be rounded down.
           *
           * The automatically calculated minimum value is also affected by
           * [floor](#yAxis.floor), [softMin](#yAxis.softMin),
           * [minPadding](#yAxis.minPadding), [minRange](#yAxis.minRange)
           * as well as [series.threshold](#plotOptions.series.threshold)
           * and [series.softThreshold](#plotOptions.series.softThreshold).
           *
           * @sample {highcharts} highcharts/yaxis/min-startontick-false/
           *         -50 with startOnTick to false
           * @sample {highcharts} highcharts/yaxis/min-startontick-true/
           *         -50 with startOnTick true by default
           * @sample {highstock} stock/xaxis/min-max/
           *         Set min and max on X axis
           * @sample {highmaps} maps/axis/min-max/
           *         Pre-zoomed to a specific area
           *
           * @type      {number|null}
           * @apioption xAxis.min
           */
          /**
           * The dash or dot style of the minor grid lines. For possible values,
           * see [this demonstration](https://jsfiddle.net/gh/get/library/pure/highcharts/highcharts/tree/master/samples/highcharts/plotoptions/series-dashstyle-all/).
           *
           * @sample {highcharts} highcharts/yaxis/minorgridlinedashstyle/
           *         Long dashes on minor grid lines
           * @sample {highstock} stock/xaxis/minorgridlinedashstyle/
           *         Long dashes on minor grid lines
           *
           * @type      {Highcharts.DashStyleValue}
           * @default   Solid
           * @since     1.2
           * @apioption xAxis.minorGridLineDashStyle
           */
          /**
           * Specific tick interval in axis units for the minor ticks. On a linear
           * axis, if `"auto"`, the minor tick interval is calculated as a fifth
           * of the tickInterval. If `null` or `undefined`, minor ticks are not
           * shown.
           *
           * On logarithmic axes, the unit is the power of the value. For example,
           * setting the minorTickInterval to 1 puts one tick on each of 0.1, 1,
           * 10, 100 etc. Setting the minorTickInterval to 0.1 produces 9 ticks
           * between 1 and 10, 10 and 100 etc.
           *
           * If user settings dictate minor ticks to become too dense, they don't
           * make sense, and will be ignored to prevent performance problems.
           *
           * @sample {highcharts} highcharts/yaxis/minortickinterval-null/
           *         Null by default
           * @sample {highcharts} highcharts/yaxis/minortickinterval-5/
           *         5 units
           * @sample {highcharts} highcharts/yaxis/minortickinterval-log-auto/
           *         "auto"
           * @sample {highcharts} highcharts/yaxis/minortickinterval-log/
           *         0.1
           * @sample {highstock} stock/demo/basic-line/
           *         Null by default
           * @sample {highstock} stock/xaxis/minortickinterval-auto/
           *         "auto"
           *
           * @type      {number|string|null}
           * @apioption xAxis.minorTickInterval
           */
          /**
           * The pixel length of the minor tick marks.
           *
           * @sample {highcharts} highcharts/yaxis/minorticklength/
           *         10px on Y axis
           * @sample {highstock} stock/xaxis/minorticks/
           *         10px on Y axis
           */
          minorTickLength: 2,
          /**
           * The position of the minor tick marks relative to the axis line.
           *  Can be one of `inside` and `outside`.
           *
           * @sample {highcharts} highcharts/yaxis/minortickposition-outside/
           *         Outside by default
           * @sample {highcharts} highcharts/yaxis/minortickposition-inside/
           *         Inside
           * @sample {highstock} stock/xaxis/minorticks/
           *         Inside
           *
           * @validvalue ["inside", "outside"]
           */
          minorTickPosition: 'outside',
          /**
           * Enable or disable minor ticks. Unless
           * [minorTickInterval](#xAxis.minorTickInterval) is set, the tick
           * interval is calculated as a fifth of the `tickInterval`.
           *
           * On a logarithmic axis, minor ticks are laid out based on a best
           * guess, attempting to enter approximately 5 minor ticks between
           * each major tick.
           *
           * Prior to v6.0.0, ticks were unabled in auto layout by setting
           * `minorTickInterval` to `"auto"`.
           *
           * @productdesc {highcharts}
           * On axes using [categories](#xAxis.categories), minor ticks are not
           * supported.
           *
           * @sample {highcharts} highcharts/yaxis/minorticks-true/
           *         Enabled on linear Y axis
           *
           * @type      {boolean}
           * @default   false
           * @since     6.0.0
           * @apioption xAxis.minorTicks
           */
          /**
           * The pixel width of the minor tick mark.
           *
           * @sample {highcharts} highcharts/yaxis/minortickwidth/
           *         3px width
           * @sample {highstock} stock/xaxis/minorticks/
           *         1px width
           *
           * @type      {number}
           * @default   0
           * @apioption xAxis.minorTickWidth
           */
          /**
           * Padding of the min value relative to the length of the axis. A
           * padding of 0.05 will make a 100px axis 5px longer. This is useful
           * when you don't want the lowest data value to appear on the edge
           * of the plot area. When the axis' `min` option is set or a min extreme
           * is set using `axis.setExtremes()`, the minPadding will be ignored.
           *
           * @sample {highcharts} highcharts/yaxis/minpadding/
           *         Min padding of 0.2
           * @sample {highstock} stock/xaxis/minpadding-maxpadding/
           *         Greater min- and maxPadding
           * @sample {highmaps} maps/chart/plotbackgroundcolor-gradient/
           *         Add some padding
           *
           * @default    {highcharts} 0.01
           * @default    {highstock|highmaps} 0
           * @since      1.2.0
           * @product    highcharts highstock gantt
           */
          minPadding: 0.01,
          /**
           * The minimum range to display on this axis. The entire axis will not
           * be allowed to span over a smaller interval than this. For example,
           * for a datetime axis the main unit is milliseconds. If minRange is
           * set to 3600000, you can't zoom in more than to one hour.
           *
           * The default minRange for the x axis is five times the smallest
           * interval between any of the data points.
           *
           * On a logarithmic axis, the unit for the minimum range is the power.
           * So a minRange of 1 means that the axis can be zoomed to 10-100,
           * 100-1000, 1000-10000 etc.
           *
           * Note that the `minPadding`, `maxPadding`, `startOnTick` and
           * `endOnTick` settings also affect how the extremes of the axis
           * are computed.
           *
           * @sample {highcharts} highcharts/xaxis/minrange/
           *         Minimum range of 5
           * @sample {highstock} stock/xaxis/minrange/
           *         Max zoom of 6 months overrides user selections
           * @sample {highmaps} maps/axis/minrange/
           *         Minimum range of 1000
           *
           * @type      {number}
           * @apioption xAxis.minRange
           */
          /**
           * The minimum tick interval allowed in axis values. For example on
           * zooming in on an axis with daily data, this can be used to prevent
           * the axis from showing hours. Defaults to the closest distance between
           * two points on the axis.
           *
           * @type      {number}
           * @since     2.3.0
           * @apioption xAxis.minTickInterval
           */
          /**
           * The distance in pixels from the plot area to the axis line.
           * A positive offset moves the axis with it's line, labels and ticks
           * away from the plot area. This is typically used when two or more
           * axes are displayed on the same side of the plot. With multiple
           * axes the offset is dynamically adjusted to avoid collision, this
           * can be overridden by setting offset explicitly.
           *
           * @sample {highcharts} highcharts/yaxis/offset/
           *         Y axis offset of 70
           * @sample {highcharts} highcharts/yaxis/offset-centered/
           *         Axes positioned in the center of the plot
           * @sample {highstock} stock/xaxis/offset/
           *         Y axis offset by 70 px
           *
           * @type      {number}
           * @default   0
           * @apioption xAxis.offset
           */
          /**
           * Whether to display the axis on the opposite side of the normal. The
           * normal is on the left side for vertical axes and bottom for
           * horizontal, so the opposite sides will be right and top respectively.
           * This is typically used with dual or multiple axes.
           *
           * @sample {highcharts} highcharts/yaxis/opposite/
           *         Secondary Y axis opposite
           * @sample {highstock} stock/xaxis/opposite/
           *         Y axis on left side
           *
           * @type      {boolean}
           * @default   false
           * @apioption xAxis.opposite
           */
          /**
           * In an ordinal axis, the points are equally spaced in the chart
           * regardless of the actual time or x distance between them. This means
           * that missing data periods (e.g. nights or weekends for a stock chart)
           * will not take up space in the chart.
           * Having `ordinal: false` will show any gaps created by the `gapSize`
           * setting proportionate to their duration.
           *
           * In stock charts the X axis is ordinal by default, unless
           * the boost module is used and at least one of the series' data length
           * exceeds the [boostThreshold](#series.line.boostThreshold).
           *
           * @sample {highstock} stock/xaxis/ordinal-true/
           *         True by default
           * @sample {highstock} stock/xaxis/ordinal-false/
           *         False
           *
           * @type      {boolean}
           * @default   true
           * @since     1.1
           * @product   highstock
           * @apioption xAxis.ordinal
           */
          /**
           * Additional range on the right side of the xAxis. Works similar to
           * `xAxis.maxPadding`, but value is set in milliseconds. Can be set for
           * both main `xAxis` and the navigator's `xAxis`.
           *
           * @sample {highstock} stock/xaxis/overscroll/
           *         One minute overscroll with live data
           *
           * @type      {number}
           * @default   0
           * @since     6.0.0
           * @product   highstock
           * @apioption xAxis.overscroll
           */
          /**
           * Refers to the index in the [panes](#panes) array. Used for circular
           * gauges and polar charts. When the option is not set then first pane
           * will be used.
           *
           * @sample highcharts/demo/gauge-vu-meter
           *         Two gauges with different center
           *
           * @type      {number}
           * @product   highcharts
           * @apioption xAxis.pane
           */
          /**
           * The zoomed range to display when only defining one or none of `min`
           * or `max`. For example, to show the latest month, a range of one month
           * can be set.
           *
           * @sample {highstock} stock/xaxis/range/
           *         Setting a zoomed range when the rangeSelector is disabled
           *
           * @type      {number}
           * @product   highstock
           * @apioption xAxis.range
           */
          /**
           * Whether to reverse the axis so that the highest number is closest
           * to the origin. If the chart is inverted, the x axis is reversed by
           * default.
           *
           * @sample {highcharts} highcharts/yaxis/reversed/
           *         Reversed Y axis
           * @sample {highstock} stock/xaxis/reversed/
           *         Reversed Y axis
           *
           * @type      {boolean}
           * @default   false
           * @apioption xAxis.reversed
           */
          // reversed: false,
          /**
           * This option determines how stacks should be ordered within a group.
           * For example reversed xAxis also reverses stacks, so first series
           * comes last in a group. To keep order like for non-reversed xAxis
           * enable this option.
           *
           * @sample {highcharts} highcharts/xaxis/reversedstacks/
           *         Reversed stacks comparison
           * @sample {highstock} highcharts/xaxis/reversedstacks/
           *         Reversed stacks comparison
           *
           * @type      {boolean}
           * @default   false
           * @since     6.1.1
           * @product   highcharts highstock
           * @apioption xAxis.reversedStacks
           */
          /**
           * An optional scrollbar to display on the X axis in response to
           * limiting the minimum and maximum of the axis values.
           *
           * In styled mode, all the presentational options for the scrollbar are
           * replaced by the classes `.highcharts-scrollbar-thumb`,
           * `.highcharts-scrollbar-arrow`, `.highcharts-scrollbar-button`,
           * `.highcharts-scrollbar-rifles` and `.highcharts-scrollbar-track`.
           *
           * @sample {highstock} stock/yaxis/heatmap-scrollbars/
           *         Heatmap with both scrollbars
           *
           * @extends   scrollbar
           * @since     4.2.6
           * @product   highstock
           * @apioption xAxis.scrollbar
           */
          /**
           * Whether to show the axis line and title when the axis has no data.
           *
           * @sample {highcharts} highcharts/yaxis/showempty/
           *         When clicking the legend to hide series, one axis preserves
           *         line and title, the other doesn't
           * @sample {highstock} highcharts/yaxis/showempty/
           *         When clicking the legend to hide series, one axis preserves
           *         line and title, the other doesn't
           *
           * @since     1.1
           */
          showEmpty: true,
          /**
           * Whether to show the first tick label.
           *
           * @sample {highcharts} highcharts/xaxis/showfirstlabel-false/
           *         Set to false on X axis
           * @sample {highstock} stock/xaxis/showfirstlabel/
           *         Labels below plot lines on Y axis
           *
           * @type      {boolean}
           * @default   true
           * @apioption xAxis.showFirstLabel
           */
          /**
           * Whether to show the last tick label. Defaults to `true` on cartesian
           * charts, and `false` on polar charts.
           *
           * @sample {highcharts} highcharts/xaxis/showlastlabel-true/
           *         Set to true on X axis
           * @sample {highstock} stock/xaxis/showfirstlabel/
           *         Labels below plot lines on Y axis
           *
           * @type      {boolean}
           * @default   true
           * @product   highcharts highstock gantt
           * @apioption xAxis.showLastLabel
           */
          /**
           * A soft maximum for the axis. If the series data maximum is less than
           * this, the axis will stay at this maximum, but if the series data
           * maximum is higher, the axis will flex to show all data.
           *
           * @sample highcharts/yaxis/softmin-softmax/
           *         Soft min and max
           *
           * @type      {number}
           * @since     5.0.1
           * @product   highcharts highstock gantt
           * @apioption xAxis.softMax
           */
          /**
           * A soft minimum for the axis. If the series data minimum is greater
           * than this, the axis will stay at this minimum, but if the series
           * data minimum is lower, the axis will flex to show all data.
           *
           * @sample highcharts/yaxis/softmin-softmax/
           *         Soft min and max
           *
           * @type      {number}
           * @since     5.0.1
           * @product   highcharts highstock gantt
           * @apioption xAxis.softMin
           */
          /**
           * For datetime axes, this decides where to put the tick between weeks.
           *  0 = Sunday, 1 = Monday.
           *
           * @sample {highcharts} highcharts/xaxis/startofweek-monday/
           *         Monday by default
           * @sample {highcharts} highcharts/xaxis/startofweek-sunday/
           *         Sunday
           * @sample {highstock} stock/xaxis/startofweek-1
           *         Monday by default
           * @sample {highstock} stock/xaxis/startofweek-0
           *         Sunday
           *
           * @product highcharts highstock gantt
           */
          startOfWeek: 1,
          /**
           * Whether to force the axis to start on a tick. Use this option with
           * the `minPadding` option to control the axis start.
           *
           * @productdesc {highstock}
           * In Highstock, `startOnTick` is always false when the navigator is
           * enabled, to prevent jumpy scrolling.
           *
           * @sample {highcharts} highcharts/xaxis/startontick-false/
           *         False by default
           * @sample {highcharts} highcharts/xaxis/startontick-true/
           *         True
           * @sample {highstock} stock/xaxis/endontick/
           *         False for Y axis
           *
           * @since 1.2.0
           */
          startOnTick: false,
          /**
           * The amount of ticks to draw on the axis. This opens up for aligning
           * the ticks of multiple charts or panes within a chart. This option
           * overrides the `tickPixelInterval` option.
           *
           * This option only has an effect on linear axes. Datetime, logarithmic
           * or category axes are not affected.
           *
           * @sample {highcharts} highcharts/yaxis/tickamount/
           *         8 ticks on Y axis
           * @sample {highstock} highcharts/yaxis/tickamount/
           *         8 ticks on Y axis
           *
           * @type      {number}
           * @since     4.1.0
           * @product   highcharts highstock gantt
           * @apioption xAxis.tickAmount
           */
          /**
           * The interval of the tick marks in axis units. When `undefined`, the
           * tick interval is computed to approximately follow the
           * [tickPixelInterval](#xAxis.tickPixelInterval) on linear and datetime
           * axes. On categorized axes, a `undefined` tickInterval will default to
           * 1, one category. Note that datetime axes are based on milliseconds,
           * so for example an interval of one day is expressed as
           * `24 * 3600 * 1000`.
           *
           * On logarithmic axes, the tickInterval is based on powers, so a
           * tickInterval of 1 means one tick on each of 0.1, 1, 10, 100 etc. A
           * tickInterval of 2 means a tick of 0.1, 10, 1000 etc. A tickInterval
           * of 0.2 puts a tick on 0.1, 0.2, 0.4, 0.6, 0.8, 1, 2, 4, 6, 8, 10, 20,
           * 40 etc.
           *
           *
           * If the tickInterval is too dense for labels to be drawn, Highcharts
           * may remove ticks.
           *
           * If the chart has multiple axes, the [alignTicks](#chart.alignTicks)
           * option may interfere with the `tickInterval` setting.
           *
           * @see [tickPixelInterval](#xAxis.tickPixelInterval)
           * @see [tickPositions](#xAxis.tickPositions)
           * @see [tickPositioner](#xAxis.tickPositioner)
           *
           * @sample {highcharts} highcharts/xaxis/tickinterval-5/
           *         Tick interval of 5 on a linear axis
           * @sample {highstock} stock/xaxis/tickinterval/
           *         Tick interval of 0.01 on Y axis
           *
           * @type      {number}
           * @apioption xAxis.tickInterval
           */
          /**
           * The pixel length of the main tick marks.
           *
           * @sample {highcharts} highcharts/xaxis/ticklength/
           *         20 px tick length on the X axis
           * @sample {highstock} stock/xaxis/ticks/
           *         Formatted ticks on X axis
           */
          tickLength: 10,
          /**
           * If tickInterval is `null` this option sets the approximate pixel
           * interval of the tick marks. Not applicable to categorized axis.
           *
           * The tick interval is also influenced by the [minTickInterval](
           * #xAxis.minTickInterval) option, that, by default prevents ticks from
           * being denser than the data points.
           *
           * @see [tickInterval](#xAxis.tickInterval)
           * @see [tickPositioner](#xAxis.tickPositioner)
           * @see [tickPositions](#xAxis.tickPositions)
           *
           * @sample {highcharts} highcharts/xaxis/tickpixelinterval-50/
           *         50 px on X axis
           * @sample {highstock} stock/xaxis/tickpixelinterval/
           *         200 px on X axis
           */
          tickPixelInterval: 100,
          /**
           * For categorized axes only. If `on` the tick mark is placed in the
           * center of the category, if `between` the tick mark is placed between
           * categories. The default is `between` if the `tickInterval` is 1, else
           * `on`.
           *
           * @sample {highcharts} highcharts/xaxis/tickmarkplacement-between/
           *         "between" by default
           * @sample {highcharts} highcharts/xaxis/tickmarkplacement-on/
           *         "on"
           *
           * @product    highcharts gantt
           * @validvalue ["on", "between"]
           */
          tickmarkPlacement: 'between',
          /**
           * The position of the major tick marks relative to the axis line.
           * Can be one of `inside` and `outside`.
           *
           * @sample {highcharts} highcharts/xaxis/tickposition-outside/
           *         "outside" by default
           * @sample {highcharts} highcharts/xaxis/tickposition-inside/
           *         "inside"
           * @sample {highstock} stock/xaxis/ticks/
           *         Formatted ticks on X axis
           *
           * @validvalue ["inside", "outside"]
           */
          tickPosition: 'outside',
          /**
           * A callback function returning array defining where the ticks are
           * laid out on the axis. This overrides the default behaviour of
           * [tickPixelInterval](#xAxis.tickPixelInterval) and [tickInterval](
           * #xAxis.tickInterval). The automatic tick positions are accessible
           * through `this.tickPositions` and can be modified by the callback.
           *
           * @see [tickPositions](#xAxis.tickPositions)
           *
           * @sample {highcharts} highcharts/xaxis/tickpositions-tickpositioner/
           *         Demo of tickPositions and tickPositioner
           * @sample {highstock} highcharts/xaxis/tickpositions-tickpositioner/
           *         Demo of tickPositions and tickPositioner
           *
           * @type      {Highcharts.AxisTickPositionerCallbackFunction}
           * @apioption xAxis.tickPositioner
           */
          /**
           * An array defining where the ticks are laid out on the axis. This
           * overrides the default behaviour of [tickPixelInterval](
           * #xAxis.tickPixelInterval) and [tickInterval](#xAxis.tickInterval).
           *
           * @see [tickPositioner](#xAxis.tickPositioner)
           *
           * @sample {highcharts} highcharts/xaxis/tickpositions-tickpositioner/
           *         Demo of tickPositions and tickPositioner
           * @sample {highstock} highcharts/xaxis/tickpositions-tickpositioner/
           *         Demo of tickPositions and tickPositioner
           *
           * @type      {Array<number>}
           * @apioption xAxis.tickPositions
           */
          /**
           * The pixel width of the major tick marks. Defaults to 0 on category
           * axes, otherwise 1.
           *
           * In styled mode, the stroke width is given in the `.highcharts-tick`
           * class, but in order for the element to be generated on category axes,
           * the option must be explicitly set to 1.
           *
           * @sample {highcharts} highcharts/xaxis/tickwidth/
           *         10 px width
           * @sample {highcharts} highcharts/css/axis-grid/
           *         Styled mode
           * @sample {highstock} stock/xaxis/ticks/
           *         Formatted ticks on X axis
           * @sample {highstock} highcharts/css/axis-grid/
           *         Styled mode
           *
           * @type      {undefined|number}
           * @default   {highstock} 1
           * @default   {highmaps} 0
           * @apioption xAxis.tickWidth
           */
          /**
           * The axis title, showing next to the axis line.
           *
           * @productdesc {highmaps}
           * In Highmaps, the axis is hidden by default, but adding an axis title
           * is still possible. X axis and Y axis titles will appear at the bottom
           * and left by default.
           */
          title: {
              /**
               * Deprecated. Set the `text` to `null` to disable the title.
               *
               * @deprecated
               * @type      {boolean}
               * @product   highcharts
               * @apioption xAxis.title.enabled
               */
              /**
               * The pixel distance between the axis labels or line and the title.
               * Defaults to 0 for horizontal axes, 10 for vertical
               *
               * @sample {highcharts} highcharts/xaxis/title-margin/
               *         Y axis title margin of 60
               *
               * @type      {number}
               * @apioption xAxis.title.margin
               */
              /**
               * The distance of the axis title from the axis line. By default,
               * this distance is computed from the offset width of the labels,
               * the labels' distance from the axis and the title's margin.
               * However when the offset option is set, it overrides all this.
               *
               * @sample {highcharts} highcharts/yaxis/title-offset/
               *         Place the axis title on top of the axis
               * @sample {highstock} highcharts/yaxis/title-offset/
               *         Place the axis title on top of the Y axis
               *
               * @type      {number}
               * @since     2.2.0
               * @apioption xAxis.title.offset
               */
              /**
               * Whether to reserve space for the title when laying out the axis.
               *
               * @type      {boolean}
               * @default   true
               * @since     5.0.11
               * @product   highcharts highstock gantt
               * @apioption xAxis.title.reserveSpace
               */
              /**
               * The rotation of the text in degrees. 0 is horizontal, 270 is
               * vertical reading from bottom to top.
               *
               * @sample {highcharts} highcharts/yaxis/title-offset/
               *         Horizontal
               *
               * @type      {number}
               * @default   0
               * @apioption xAxis.title.rotation
               */
              /**
               * The actual text of the axis title. It can contain basic HTML text
               * markup like <b>, <i> and spans with style.
               *
               * @sample {highcharts} highcharts/xaxis/title-text/
               *         Custom HTML
               * @sample {highstock} stock/xaxis/title-text/
               *         Titles for both axes
               *
               * @type      {string|null}
               * @apioption xAxis.title.text
               */
              /**
               * Alignment of the text, can be `"left"`, `"right"` or `"center"`.
               * Default alignment depends on the
               * [title.align](xAxis.title.align):
               *
               * Horizontal axes:
               * - for `align` = `"low"`, `textAlign` is set to `left`
               * - for `align` = `"middle"`, `textAlign` is set to `center`
               * - for `align` = `"high"`, `textAlign` is set to `right`
               *
               * Vertical axes:
               * - for `align` = `"low"` and `opposite` = `true`, `textAlign` is
               *   set to `right`
               * - for `align` = `"low"` and `opposite` = `false`, `textAlign` is
               *   set to `left`
               * - for `align` = `"middle"`, `textAlign` is set to `center`
               * - for `align` = `"high"` and `opposite` = `true` `textAlign` is
               *   set to `left`
               * - for `align` = `"high"` and `opposite` = `false` `textAlign` is
               *   set to `right`
               *
               * @type      {Highcharts.AlignValue}
               * @apioption xAxis.title.textAlign
               */
              /**
               * Whether to [use HTML](https://www.highcharts.com/docs/chart-concepts/labels-and-string-formatting#html)
               * to render the axis title.
               *
               * @type      {boolean}
               * @default   false
               * @product   highcharts highstock gantt
               * @apioption xAxis.title.useHTML
               */
              /**
               * Horizontal pixel offset of the title position.
               *
               * @type      {number}
               * @default   0
               * @since     4.1.6
               * @product   highcharts highstock gantt
               * @apioption xAxis.title.x
               */
              /**
               * Vertical pixel offset of the title position.
               *
               * @type      {number}
               * @product   highcharts highstock gantt
               * @apioption xAxis.title.y
               */
              /**
               * Alignment of the title relative to the axis values. Possible
               * values are "low", "middle" or "high".
               *
               * @sample {highcharts} highcharts/xaxis/title-align-low/
               *         "low"
               * @sample {highcharts} highcharts/xaxis/title-align-center/
               *         "middle" by default
               * @sample {highcharts} highcharts/xaxis/title-align-high/
               *         "high"
               * @sample {highcharts} highcharts/yaxis/title-offset/
               *         Place the Y axis title on top of the axis
               * @sample {highstock} stock/xaxis/title-align/
               *         Aligned to "high" value
               *
               * @type {Highcharts.AxisTitleAlignValue}
               */
              align: 'middle',
              /**
               * CSS styles for the title. If the title text is longer than the
               * axis length, it will wrap to multiple lines by default. This can
               * be customized by setting `textOverflow: 'ellipsis'`, by
               * setting a specific `width` or by setting `whiteSpace: 'nowrap'`.
               *
               * In styled mode, the stroke width is given in the
               * `.highcharts-axis-title` class.
               *
               * @sample {highcharts} highcharts/xaxis/title-style/
               *         Red
               * @sample {highcharts} highcharts/css/axis/
               *         Styled mode
               *
               * @type    {Highcharts.CSSObject}
               */
              style: {
                  /** @internal */
                  color: '#666666'
              }
          },
          /**
           * The type of axis. Can be one of `linear`, `logarithmic`, `datetime`
           * or `category`. In a datetime axis, the numbers are given in
           * milliseconds, and tick marks are placed on appropriate values like
           * full hours or days. In a category axis, the
           * [point names](#series.line.data.name) of the chart's series are used
           * for categories, if not a [categories](#xAxis.categories) array is
           * defined.
           *
           * @sample {highcharts} highcharts/xaxis/type-linear/
           *         Linear
           * @sample {highcharts} highcharts/yaxis/type-log/
           *         Logarithmic
           * @sample {highcharts} highcharts/yaxis/type-log-minorgrid/
           *         Logarithmic with minor grid lines
           * @sample {highcharts} highcharts/xaxis/type-log-both/
           *         Logarithmic on two axes
           * @sample {highcharts} highcharts/yaxis/type-log-negative/
           *         Logarithmic with extension to emulate negative values
           *
           * @type    {Highcharts.AxisTypeValue}
           * @product highcharts gantt
           */
          type: 'linear',
          /**
           * If there are multiple axes on the same side of the chart, the pixel
           * margin between the axes. Defaults to 0 on vertical axes, 15 on
           * horizontal axes.
           *
           * @type      {number}
           * @since     7.0.3
           * @apioption xAxis.margin
           */
          /**
           * Applies only when the axis `type` is `category`. When `uniqueNames`
           * is true, points are placed on the X axis according to their names.
           * If the same point name is repeated in the same or another series,
           * the point is placed on the same X position as other points of the
           * same name. When `uniqueNames` is false, the points are laid out in
           * increasing X positions regardless of their names, and the X axis
           * category will take the name of the last point in each position.
           *
           * @sample {highcharts} highcharts/xaxis/uniquenames-true/
           *         True by default
           * @sample {highcharts} highcharts/xaxis/uniquenames-false/
           *         False
           *
           * @type      {boolean}
           * @default   true
           * @since     4.2.7
           * @product   highcharts gantt
           * @apioption xAxis.uniqueNames
           */
          /**
           * Datetime axis only. An array determining what time intervals the
           * ticks are allowed to fall on. Each array item is an array where the
           * first value is the time unit and the second value another array of
           * allowed multiples. Defaults to:
           *
           * <pre>units: [[
           *     'millisecond', // unit name
           *     [1, 2, 5, 10, 20, 25, 50, 100, 200, 500] // allowed multiples
           * ], [
           *     'second',
           *     [1, 2, 5, 10, 15, 30]
           * ], [
           *     'minute',
           *     [1, 2, 5, 10, 15, 30]
           * ], [
           *     'hour',
           *     [1, 2, 3, 4, 6, 8, 12]
           * ], [
           *     'day',
           *     [1]
           * ], [
           *     'week',
           *     [1]
           * ], [
           *     'month',
           *     [1, 3, 6]
           * ], [
           *     'year',
           *     null
           * ]]</pre>
           *
           * @type      {Array<Array<string,(Array<number>|null)>>}
           * @product   highcharts highstock gantt
           * @apioption xAxis.units
           */
          /**
           * Whether axis, including axis title, line, ticks and labels, should
           * be visible.
           *
           * @type      {boolean}
           * @default   true
           * @since     4.1.9
           * @product   highcharts highstock gantt
           * @apioption xAxis.visible
           */
          /**
           * Color of the minor, secondary grid lines.
           *
           * In styled mode, the stroke width is given in the
           * `.highcharts-minor-grid-line` class.
           *
           * @sample {highcharts} highcharts/yaxis/minorgridlinecolor/
           *         Bright grey lines from Y axis
           * @sample {highcharts|highstock} highcharts/css/axis-grid/
           *         Styled mode
           * @sample {highstock} stock/xaxis/minorgridlinecolor/
           *         Bright grey lines from Y axis
           *
           * @type    {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
           * @default #f2f2f2
           */
          minorGridLineColor: '#f2f2f2',
          /**
           * Width of the minor, secondary grid lines.
           *
           * In styled mode, the stroke width is given in the
           * `.highcharts-grid-line` class.
           *
           * @sample {highcharts} highcharts/yaxis/minorgridlinewidth/
           *         2px lines from Y axis
           * @sample {highcharts|highstock} highcharts/css/axis-grid/
           *         Styled mode
           * @sample {highstock} stock/xaxis/minorgridlinewidth/
           *         2px lines from Y axis
           */
          minorGridLineWidth: 1,
          /**
           * Color for the minor tick marks.
           *
           * @sample {highcharts} highcharts/yaxis/minortickcolor/
           *         Black tick marks on Y axis
           * @sample {highstock} stock/xaxis/minorticks/
           *         Black tick marks on Y axis
           *
           * @type    {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
           * @default #999999
           */
          minorTickColor: '#999999',
          /**
           * The color of the line marking the axis itself.
           *
           * In styled mode, the line stroke is given in the
           * `.highcharts-axis-line` or `.highcharts-xaxis-line` class.
           *
           * @productdesc {highmaps}
           * In Highmaps, the axis line is hidden by default, because the axis is
           * not visible by default.
           *
           * @sample {highcharts} highcharts/yaxis/linecolor/
           *         A red line on Y axis
           * @sample {highcharts|highstock} highcharts/css/axis/
           *         Axes in styled mode
           * @sample {highstock} stock/xaxis/linecolor/
           *         A red line on X axis
           *
           * @type    {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
           * @default #ccd6eb
           */
          lineColor: '#ccd6eb',
          /**
           * The width of the line marking the axis itself.
           *
           * In styled mode, the stroke width is given in the
           * `.highcharts-axis-line` or `.highcharts-xaxis-line` class.
           *
           * @sample {highcharts} highcharts/yaxis/linecolor/
           *         A 1px line on Y axis
           * @sample {highcharts|highstock} highcharts/css/axis/
           *         Axes in styled mode
           * @sample {highstock} stock/xaxis/linewidth/
           *         A 2px line on X axis
           *
           * @default {highcharts|highstock} 1
           * @default {highmaps} 0
           */
          lineWidth: 1,
          /**
           * Color of the grid lines extending the ticks across the plot area.
           *
           * In styled mode, the stroke is given in the `.highcharts-grid-line`
           * class.
           *
           * @productdesc {highmaps}
           * In Highmaps, the grid lines are hidden by default.
           *
           * @sample {highcharts} highcharts/yaxis/gridlinecolor/
           *         Green lines
           * @sample {highcharts|highstock} highcharts/css/axis-grid/
           *         Styled mode
           * @sample {highstock} stock/xaxis/gridlinecolor/
           *         Green lines
           *
           * @type    {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
           * @default #e6e6e6
           */
          gridLineColor: '#e6e6e6',
          // gridLineDashStyle: 'solid',
          /**
           * The width of the grid lines extending the ticks across the plot area.
           *
           * In styled mode, the stroke width is given in the
           * `.highcharts-grid-line` class.
           *
           * @sample {highcharts} highcharts/yaxis/gridlinewidth/
           *         2px lines
           * @sample {highcharts|highstock} highcharts/css/axis-grid/
           *         Styled mode
           * @sample {highstock} stock/xaxis/gridlinewidth/
           *         2px lines
           *
           * @type      {number}
           * @default   0
           * @apioption xAxis.gridLineWidth
           */
          // gridLineWidth: 0,
          /**
           * Color for the main tick marks.
           *
           * In styled mode, the stroke is given in the `.highcharts-tick`
           * class.
           *
           * @sample {highcharts} highcharts/xaxis/tickcolor/
           *         Red ticks on X axis
           * @sample {highcharts|highstock} highcharts/css/axis-grid/
           *         Styled mode
           * @sample {highstock} stock/xaxis/ticks/
           *         Formatted ticks on X axis
           *
           * @type    {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
           * @default #ccd6eb
           */
          tickColor: '#ccd6eb'
          // tickWidth: 1
      },
      /**
       * The Y axis or value axis. Normally this is the vertical axis,
       * though if the chart is inverted this is the horizontal axis.
       * In case of multiple axes, the yAxis node is an array of
       * configuration objects.
       *
       * See [the Axis object](/class-reference/Highcharts.Axis) for programmatic
       * access to the axis.
       *
       * @type         {*|Array<*>}
       * @extends      xAxis
       * @excluding    ordinal,overscroll,currentDateIndicator
       * @optionparent yAxis
       *
       * @private
       */
      defaultYAxisOptions: {
          /**
           * In a polar chart, this is the angle of the Y axis in degrees, where
           * 0 is up and 90 is right. The angle determines the position of the
           * axis line and the labels, though the coordinate system is unaffected.
           *
           * @sample {highcharts} highcharts/yaxis/angle/
           *         Dual axis polar chart
           *
           * @type      {number}
           * @default   0
           * @since     4.2.7
           * @product   highcharts
           * @apioption yAxis.angle
           */
          /**
           * The type of axis. Can be one of `linear`, `logarithmic`, `datetime`,
           * `category` or `treegrid`. Defaults to `treegrid` for Gantt charts,
           * `linear` for other chart types.
           *
           * In a datetime axis, the numbers are given in milliseconds, and tick
           * marks are placed on appropriate values, like full hours or days. In a
           * category or treegrid axis, the [point names](#series.line.data.name)
           * of the chart's series are used for categories, if a
           * [categories](#xAxis.categories) array is not defined.
           *
           * @sample {highcharts} highcharts/yaxis/type-log-minorgrid/
           *         Logarithmic with minor grid lines
           * @sample {highcharts} highcharts/yaxis/type-log-negative/
           *         Logarithmic with extension to emulate negative values
           * @sample {gantt} gantt/treegrid-axis/demo
           *         Treegrid axis
           *
           * @type      {Highcharts.AxisTypeValue}
           * @default   {highcharts} linear
           * @default   {gantt} treegrid
           * @product   highcharts gantt
           * @apioption yAxis.type
           */
          /**
           * Polar charts only. Whether the grid lines should draw as a polygon
           * with straight lines between categories, or as circles. Can be either
           * `circle` or `polygon`.
           *
           * @sample {highcharts} highcharts/demo/polar-spider/
           *         Polygon grid lines
           * @sample {highcharts} highcharts/yaxis/gridlineinterpolation/
           *         Circle and polygon
           *
           * @type       {string}
           * @product    highcharts
           * @validvalue ["circle", "polygon"]
           * @apioption  yAxis.gridLineInterpolation
           */
          /**
           * The height of the Y axis. If it's a number, it is interpreted as
           * pixels.
           *
           * Since Highstock 2: If it's a percentage string, it is interpreted
           * as percentages of the total plot height.
           *
           * @see [yAxis.top](#yAxis.top)
           *
           * @sample {highstock} stock/demo/candlestick-and-volume/
           *         Percentage height panes
           *
           * @type      {number|string}
           * @product   highstock
           * @apioption yAxis.height
           */
          /**
           * Solid gauge only. Unless [stops](#yAxis.stops) are set, the color
           * to represent the maximum value of the Y axis.
           *
           * @sample {highcharts} highcharts/yaxis/mincolor-maxcolor/
           *         Min and max colors
           *
           * @type      {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
           * @default   #003399
           * @since     4.0
           * @product   highcharts
           * @apioption yAxis.maxColor
           */
          /**
           * Solid gauge only. Unless [stops](#yAxis.stops) are set, the color
           * to represent the minimum value of the Y axis.
           *
           * @sample {highcharts} highcharts/yaxis/mincolor-maxcolor/
           *         Min and max color
           *
           * @type      {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
           * @default   #e6ebf5
           * @since     4.0
           * @product   highcharts
           * @apioption yAxis.minColor
           */
          /**
           * Whether to reverse the axis so that the highest number is closest
           * to the origin.
           *
           * @sample {highcharts} highcharts/yaxis/reversed/
           *         Reversed Y axis
           * @sample {highstock} stock/xaxis/reversed/
           *         Reversed Y axis
           *
           * @type      {boolean}
           * @default   {highcharts} false
           * @default   {highstock} false
           * @default   {highmaps} true
           * @default   {gantt} true
           * @apioption yAxis.reversed
           */
          /**
           * If `true`, the first series in a stack will be drawn on top in a
           * positive, non-reversed Y axis. If `false`, the first series is in
           * the base of the stack.
           *
           * @sample {highcharts} highcharts/yaxis/reversedstacks-false/
           *         Non-reversed stacks
           * @sample {highstock} highcharts/yaxis/reversedstacks-false/
           *         Non-reversed stacks
           *
           * @type      {boolean}
           * @default   true
           * @since     3.0.10
           * @product   highcharts highstock
           * @apioption yAxis.reversedStacks
           */
          /**
           * Solid gauge series only. Color stops for the solid gauge. Use this
           * in cases where a linear gradient between a `minColor` and `maxColor`
           * is not sufficient. The stops is an array of tuples, where the first
           * item is a float between 0 and 1 assigning the relative position in
           * the gradient, and the second item is the color.
           *
           * For solid gauges, the Y axis also inherits the concept of
           * [data classes](http://api.highcharts.com/highmaps#colorAxis.dataClasses)
           * from the Highmaps color axis.
           *
           * @see [minColor](#yAxis.minColor)
           * @see [maxColor](#yAxis.maxColor)
           *
           * @sample {highcharts} highcharts/demo/gauge-solid/
           *         True by default
           *
           * @type      {Array<Array<number,Highcharts.ColorString>>}
           * @since     4.0
           * @product   highcharts
           * @apioption yAxis.stops
           */
          /**
           * The pixel width of the major tick marks.
           *
           * @sample {highcharts} highcharts/xaxis/tickwidth/ 10 px width
           * @sample {highstock} stock/xaxis/ticks/ Formatted ticks on X axis
           *
           * @type      {number}
           * @default   0
           * @product   highcharts highstock gantt
           * @apioption yAxis.tickWidth
           */
          /**
           * Angular gauges and solid gauges only.
           * The label's pixel distance from the perimeter of the plot area.
           *
           * Since v7.1.2: If it's a percentage string, it is interpreted the
           * same as [series.radius](#plotOptions.gauge.radius), so label can be
           * aligned under the gauge's shape.
           *
           * @sample {highcharts} highcharts/yaxis/labels-distance/
           *                      Labels centered under the arc
           *
           * @type      {number|string}
           * @default   -25
           * @product   highcharts
           * @apioption yAxis.labels.distance
           */
          /**
           * The y position offset of the label relative to the tick position
           * on the axis.
           *
           * @sample {highcharts} highcharts/xaxis/labels-x/
           *         Y axis labels placed on grid lines
           *
           * @type      {number}
           * @default   {highcharts} 3
           * @default   {highstock} -2
           * @default   {highmaps} 3
           * @apioption yAxis.labels.y
           */
          /**
           * @productdesc {highstock}
           * In Highstock, `endOnTick` is always false when the navigator is
           * enabled, to prevent jumpy scrolling.
           */
          endOnTick: true,
          /**
           * Padding of the max value relative to the length of the axis. A
           * padding of 0.05 will make a 100px axis 5px longer. This is useful
           * when you don't want the highest data value to appear on the edge
           * of the plot area. When the axis' `max` option is set or a max extreme
           * is set using `axis.setExtremes()`, the maxPadding will be ignored.
           *
           * Also the `softThreshold` option takes precedence over `maxPadding`,
           * so if the data is tangent to the threshold, `maxPadding` may not
           * apply unless `softThreshold` is set to false.
           *
           * @sample {highcharts} highcharts/yaxis/maxpadding-02/
           *         Max padding of 0.2
           * @sample {highstock} stock/xaxis/minpadding-maxpadding/
           *         Greater min- and maxPadding
           *
           * @since   1.2.0
           * @product highcharts highstock gantt
           */
          maxPadding: 0.05,
          /**
           * Padding of the min value relative to the length of the axis. A
           * padding of 0.05 will make a 100px axis 5px longer. This is useful
           * when you don't want the lowest data value to appear on the edge
           * of the plot area. When the axis' `min` option is set or a max extreme
           * is set using `axis.setExtremes()`, the maxPadding will be ignored.
           *
           * Also the `softThreshold` option takes precedence over `minPadding`,
           * so if the data is tangent to the threshold, `minPadding` may not
           * apply unless `softThreshold` is set to false.
           *
           * @sample {highcharts} highcharts/yaxis/minpadding/
           *         Min padding of 0.2
           * @sample {highstock} stock/xaxis/minpadding-maxpadding/
           *         Greater min- and maxPadding
           *
           * @since   1.2.0
           * @product highcharts highstock gantt
           */
          minPadding: 0.05,
          /**
           * @productdesc {highstock}
           * In Highstock 1.x, the Y axis was placed on the left side by default.
           *
           * @sample {highcharts} highcharts/yaxis/opposite/
           *         Secondary Y axis opposite
           * @sample {highstock} stock/xaxis/opposite/
           *         Y axis on left side
           *
           * @type      {boolean}
           * @default   {highstock} true
           * @default   {highcharts} false
           * @product   highstock highcharts gantt
           * @apioption yAxis.opposite
           */
          /**
           * @see [tickInterval](#xAxis.tickInterval)
           * @see [tickPositioner](#xAxis.tickPositioner)
           * @see [tickPositions](#xAxis.tickPositions)
           */
          tickPixelInterval: 72,
          showLastLabel: true,
          /**
           * @extends xAxis.labels
           */
          labels: {
              /**
               * What part of the string the given position is anchored to. Can
               * be one of `"left"`, `"center"` or `"right"`. The exact position
               * also depends on the `labels.x` setting.
               *
               * Angular gauges and solid gauges defaults to `"center"`.
               * Solid gauges with two labels have additional option `"auto"`
               * for automatic horizontal and vertical alignment.
               *
               * @see [yAxis.labels.distance](#yAxis.labels.distance)
               *
               * @sample {highcharts} highcharts/yaxis/labels-align-left/
               *         Left
               * @sample {highcharts} highcharts/series-solidgauge/labels-auto-aligned/
               *         Solid gauge labels auto aligned
               *
               * @type       {Highcharts.AlignValue}
               * @default    {highcharts|highmaps} right
               * @default    {highstock} left
               * @apioption  yAxis.labels.align
               */
              /**
               * The x position offset of the label relative to the tick position
               * on the axis. Defaults to -15 for left axis, 15 for right axis.
               *
               * @sample {highcharts} highcharts/xaxis/labels-x/
               *         Y axis labels placed on grid lines
               */
              x: -8
          },
          /**
           * @productdesc {highmaps}
           * In Highmaps, the axis line is hidden by default, because the axis is
           * not visible by default.
           *
           * @type      {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
           * @apioption yAxis.lineColor
           */
          /**
           * @sample {highcharts} highcharts/yaxis/max-200/
           *         Y axis max of 200
           * @sample {highcharts} highcharts/yaxis/max-logarithmic/
           *         Y axis max on logarithmic axis
           * @sample {highstock} stock/yaxis/min-max/
           *         Fixed min and max on Y axis
           * @sample {highmaps} maps/axis/min-max/
           *         Pre-zoomed to a specific area
           *
           * @apioption yAxis.max
           */
          /**
           * @sample {highcharts} highcharts/yaxis/min-startontick-false/
           *         -50 with startOnTick to false
           * @sample {highcharts} highcharts/yaxis/min-startontick-true/
           *         -50 with startOnTick true by default
           * @sample {highstock} stock/yaxis/min-max/
           *         Fixed min and max on Y axis
           * @sample {highmaps} maps/axis/min-max/
           *         Pre-zoomed to a specific area
           *
           * @apioption yAxis.min
           */
          /**
           * An optional scrollbar to display on the Y axis in response to
           * limiting the minimum an maximum of the axis values.
           *
           * In styled mode, all the presentational options for the scrollbar
           * are replaced by the classes `.highcharts-scrollbar-thumb`,
           * `.highcharts-scrollbar-arrow`, `.highcharts-scrollbar-button`,
           * `.highcharts-scrollbar-rifles` and `.highcharts-scrollbar-track`.
           *
           * @sample {highstock} stock/yaxis/scrollbar/
           *         Scrollbar on the Y axis
           *
           * @extends   scrollbar
           * @since     4.2.6
           * @product   highstock
           * @excluding height
           * @apioption yAxis.scrollbar
           */
          /**
           * Enable the scrollbar on the Y axis.
           *
           * @sample {highstock} stock/yaxis/scrollbar/
           *         Enabled on Y axis
           *
           * @type      {boolean}
           * @default   false
           * @since     4.2.6
           * @product   highstock
           * @apioption yAxis.scrollbar.enabled
           */
          /**
           * Pixel margin between the scrollbar and the axis elements.
           *
           * @type      {number}
           * @default   10
           * @since     4.2.6
           * @product   highstock
           * @apioption yAxis.scrollbar.margin
           */
          /**
           * Whether to show the scrollbar when it is fully zoomed out at max
           * range. Setting it to `false` on the Y axis makes the scrollbar stay
           * hidden until the user zooms in, like common in browsers.
           *
           * @type      {boolean}
           * @default   true
           * @since     4.2.6
           * @product   highstock
           * @apioption yAxis.scrollbar.showFull
           */
          /**
           * The width of a vertical scrollbar or height of a horizontal
           * scrollbar. Defaults to 20 on touch devices.
           *
           * @type      {number}
           * @default   14
           * @since     4.2.6
           * @product   highstock
           * @apioption yAxis.scrollbar.size
           */
          /**
           * Z index of the scrollbar elements.
           *
           * @type      {number}
           * @default   3
           * @since     4.2.6
           * @product   highstock
           * @apioption yAxis.scrollbar.zIndex
           */
          /**
           * A soft maximum for the axis. If the series data maximum is less
           * than this, the axis will stay at this maximum, but if the series
           * data maximum is higher, the axis will flex to show all data.
           *
           * **Note**: The [series.softThreshold](
           * #plotOptions.series.softThreshold) option takes precedence over this
           * option.
           *
           * @sample highcharts/yaxis/softmin-softmax/
           *         Soft min and max
           *
           * @type      {number}
           * @since     5.0.1
           * @product   highcharts highstock gantt
           * @apioption yAxis.softMax
           */
          /**
           * A soft minimum for the axis. If the series data minimum is greater
           * than this, the axis will stay at this minimum, but if the series
           * data minimum is lower, the axis will flex to show all data.
           *
           * **Note**: The [series.softThreshold](
           * #plotOptions.series.softThreshold) option takes precedence over this
           * option.
           *
           * @sample highcharts/yaxis/softmin-softmax/
           *         Soft min and max
           *
           * @type      {number}
           * @since     5.0.1
           * @product   highcharts highstock gantt
           * @apioption yAxis.softMin
           */
          /**
           * Defines the horizontal alignment of the stack total label. Can be one
           * of `"left"`, `"center"` or `"right"`. The default value is calculated
           * at runtime and depends on orientation and whether the stack is
           * positive or negative.
           *
           * @sample {highcharts} highcharts/yaxis/stacklabels-align-left/
           *         Aligned to the left
           * @sample {highcharts} highcharts/yaxis/stacklabels-align-center/
           *         Aligned in center
           * @sample {highcharts} highcharts/yaxis/stacklabels-align-right/
           *         Aligned to the right
           *
           * @type      {Highcharts.AlignValue}
           * @since     2.1.5
           * @product   highcharts
           * @apioption yAxis.stackLabels.align
           */
          /**
           * A [format string](http://docs.highcharts.com/#formatting) for the
           * data label. Available variables are the same as for `formatter`.
           *
           * @type      {string}
           * @default   {total}
           * @since     3.0.2
           * @product   highcharts highstock
           * @apioption yAxis.stackLabels.format
           */
          /**
           * Rotation of the labels in degrees.
           *
           * @sample {highcharts} highcharts/yaxis/stacklabels-rotation/
           *         Labels rotated 45°
           *
           * @type      {number}
           * @default   0
           * @since     2.1.5
           * @product   highcharts
           * @apioption yAxis.stackLabels.rotation
           */
          /**
           * The text alignment for the label. While `align` determines where the
           * texts anchor point is placed with regards to the stack, `textAlign`
           * determines how the text is aligned against its anchor point. Possible
           * values are `"left"`, `"center"` and `"right"`. The default value is
           * calculated at runtime and depends on orientation and whether the
           * stack is positive or negative.
           *
           * @sample {highcharts} highcharts/yaxis/stacklabels-textalign-left/
           *         Label in center position but text-aligned left
           *
           * @type      {Highcharts.AlignValue}
           * @since     2.1.5
           * @product   highcharts
           * @apioption yAxis.stackLabels.textAlign
           */
          /**
           * Whether to [use HTML](https://www.highcharts.com/docs/chart-concepts/labels-and-string-formatting#html)
           * to render the labels.
           *
           * @type      {boolean}
           * @default   false
           * @since     3.0
           * @product   highcharts highstock
           * @apioption yAxis.stackLabels.useHTML
           */
          /**
           * Defines the vertical alignment of the stack total label. Can be one
           * of `"top"`, `"middle"` or `"bottom"`. The default value is calculated
           * at runtime and depends on orientation and whether the stack is
           * positive or negative.
           *
           * @sample {highcharts} highcharts/yaxis/stacklabels-verticalalign-top/
           *         Vertically aligned top
           * @sample {highcharts} highcharts/yaxis/stacklabels-verticalalign-middle/
           *         Vertically aligned middle
           * @sample {highcharts} highcharts/yaxis/stacklabels-verticalalign-bottom/
           *         Vertically aligned bottom
           *
           * @type      {Highcharts.VerticalAlignValue}
           * @since     2.1.5
           * @product   highcharts
           * @apioption yAxis.stackLabels.verticalAlign
           */
          /**
           * The x position offset of the label relative to the left of the
           * stacked bar. The default value is calculated at runtime and depends
           * on orientation and whether the stack is positive or negative.
           *
           * @sample {highcharts} highcharts/yaxis/stacklabels-x/
           *         Stack total labels with x offset
           *
           * @type      {number}
           * @since     2.1.5
           * @product   highcharts
           * @apioption yAxis.stackLabels.x
           */
          /**
           * The y position offset of the label relative to the tick position
           * on the axis. The default value is calculated at runtime and depends
           * on orientation and whether the stack is positive or negative.
           *
           * @sample {highcharts} highcharts/yaxis/stacklabels-y/
           *         Stack total labels with y offset
           *
           * @type      {number}
           * @since     2.1.5
           * @product   highcharts
           * @apioption yAxis.stackLabels.y
           */
          /**
           * Whether to force the axis to start on a tick. Use this option with
           * the `maxPadding` option to control the axis start.
           *
           * @sample {highcharts} highcharts/xaxis/startontick-false/
           *         False by default
           * @sample {highcharts} highcharts/xaxis/startontick-true/
           *         True
           * @sample {highstock} stock/xaxis/endontick/
           *         False for Y axis
           *
           * @since   1.2.0
           * @product highcharts highstock gantt
           */
          startOnTick: true,
          title: {
              /**
               * The pixel distance between the axis labels and the title.
               * Positive values are outside the axis line, negative are inside.
               *
               * @sample {highcharts} highcharts/xaxis/title-margin/
               *         Y axis title margin of 60
               *
               * @type      {number}
               * @default   40
               * @apioption yAxis.title.margin
               */
              /**
               * The rotation of the text in degrees. 0 is horizontal, 270 is
               * vertical reading from bottom to top.
               *
               * @sample {highcharts} highcharts/yaxis/title-offset/
               *         Horizontal
               */
              rotation: 270,
              /**
               * The actual text of the axis title. Horizontal texts can contain
               * HTML, but rotated texts are painted using vector techniques and
               * must be clean text. The Y axis title is disabled by setting the
               * `text` option to `undefined`.
               *
               * @sample {highcharts} highcharts/xaxis/title-text/
               *         Custom HTML
               *
               * @type    {string|null}
               * @default {highcharts} Values
               * @default {highstock} undefined
               * @product highcharts highstock gantt
               */
              text: 'Values'
          },
          /**
           * The top position of the Y axis. If it's a number, it is interpreted
           * as pixel position relative to the chart.
           *
           * Since Highstock 2: If it's a percentage string, it is interpreted
           * as percentages of the plot height, offset from plot area top.
           *
           * @see [yAxis.height](#yAxis.height)
           *
           * @sample {highstock} stock/demo/candlestick-and-volume/
           *         Percentage height panes
           *
           * @type      {number|string}
           * @product   highstock
           * @apioption yAxis.top
           */
          /**
           * The stack labels show the total value for each bar in a stacked
           * column or bar chart. The label will be placed on top of positive
           * columns and below negative columns. In case of an inverted column
           * chart or a bar chart the label is placed to the right of positive
           * bars and to the left of negative bars.
           *
           * @product highcharts
           */
          stackLabels: {
              /**
               * Allow the stack labels to overlap.
               *
               * @sample {highcharts} highcharts/yaxis/stacklabels-allowoverlap-false/
               *         Default false
               *
               * @since   5.0.13
               * @product highcharts
               */
              allowOverlap: false,
              /**
               * Enable or disable the stack total labels.
               *
               * @sample {highcharts} highcharts/yaxis/stacklabels-enabled/
               *         Enabled stack total labels
               * @sample {highcharts} highcharts/yaxis/stacklabels-enabled-waterfall/
               *         Enabled stack labels in waterfall chart
               *
               * @since   2.1.5
               * @product highcharts
               */
              enabled: false,
              /**
               * Whether to hide stack labels that are outside the plot area.
               * By default, the stack label is moved
               * inside the plot area according to the
               * [overflow](/highcharts/#yAxis/stackLabels/overflow)
               * option.
               *
               * @type  {boolean}
               * @since 7.1.3
               */
              crop: true,
              /**
               * How to handle stack total labels that flow outside the plot area.
               * The default is set to `"justify"`,
               * which aligns them inside the plot area.
               * For columns and bars, this means it will be moved inside the bar.
               * To display stack labels outside the plot area,
               * set `crop` to `false` and `overflow` to `"allow"`.
               *
               * @sample highcharts/yaxis/stacklabels-overflow/
               *         Stack labels flows outside the plot area.
               *
               * @type  {Highcharts.DataLabelsOverflowValue}
               * @since 7.1.3
               */
              overflow: 'justify',
              /* eslint-disable valid-jsdoc */
              /**
               * Callback JavaScript function to format the label. The value is
               * given by `this.total`.
               *
               * @sample {highcharts} highcharts/yaxis/stacklabels-formatter/
               *         Added units to stack total value
               *
               * @type    {Highcharts.FormatterCallbackFunction<Highcharts.StackItemObject>}
               * @since   2.1.5
               * @product highcharts
               */
              formatter: function () {
                  /* eslint-enable valid-jsdoc */
                  return H.numberFormat(this.total, -1);
              },
              /**
               * CSS styles for the label.
               *
               * In styled mode, the styles are set in the
               * `.highcharts-stack-label` class.
               *
               * @sample {highcharts} highcharts/yaxis/stacklabels-style/
               *         Red stack total labels
               *
               * @type    {Highcharts.CSSObject}
               * @since   2.1.5
               * @product highcharts
               */
              style: {
                  /** @internal */
                  color: '#000000',
                  /** @internal */
                  fontSize: '11px',
                  /** @internal */
                  fontWeight: 'bold',
                  /** @internal */
                  textOutline: '1px contrast'
              }
          },
          gridLineWidth: 1,
          lineWidth: 0
          // tickWidth: 0
      },
      /**
       * The Z axis or depth axis for 3D plots.
       *
       * See the [Axis class](/class-reference/Highcharts.Axis) for programmatic
       * access to the axis.
       *
       * @sample {highcharts} highcharts/3d/scatter-zaxis-categories/
       *         Z-Axis with Categories
       * @sample {highcharts} highcharts/3d/scatter-zaxis-grid/
       *         Z-Axis with styling
       *
       * @type      {*|Array<*>}
       * @extends   xAxis
       * @since     5.0.0
       * @product   highcharts
       * @excluding breaks, crosshair, lineColor, lineWidth, nameToX, showEmpty
       * @apioption zAxis
       *
       * @private
       */
      // This variable extends the defaultOptions for left axes.
      defaultLeftAxisOptions: {
          labels: {
              x: -15
          },
          title: {
              rotation: 270
          }
      },
      // This variable extends the defaultOptions for right axes.
      defaultRightAxisOptions: {
          labels: {
              x: 15
          },
          title: {
              rotation: 90
          }
      },
      // This variable extends the defaultOptions for bottom axes.
      defaultBottomAxisOptions: {
          labels: {
              autoRotation: [-45],
              x: 0
              // overflow: undefined,
              // staggerLines: null
          },
          margin: 15,
          title: {
              rotation: 0
          }
      },
      // This variable extends the defaultOptions for top axes.
      defaultTopAxisOptions: {
          labels: {
              autoRotation: [-45],
              x: 0
              // overflow: undefined
              // staggerLines: null
          },
          margin: 15,
          title: {
              rotation: 0
          }
      },
      /* eslint-disable no-invalid-this, valid-jsdoc */
      /**
       * Overrideable function to initialize the axis.
       *
       * @see {@link Axis}
       *
       * @function Highcharts.Axis#init
       *
       * @param {Highcharts.Chart} chart
       *
       * @param {Highcharts.AxisOptions} userOptions
       *
       * @return {void}
       *
       * @fires Highcharts.Axis#event:afterInit
       * @fires Highcharts.Axis#event:init
       */
      init: function (chart, userOptions) {
          var isXAxis = userOptions.isX, axis = this;
          /**
           * The Chart that the axis belongs to.
           *
           * @name Highcharts.Axis#chart
           * @type {Highcharts.Chart}
           */
          axis.chart = chart;
          /**
           * Whether the axis is horizontal.
           *
           * @name Highcharts.Axis#horiz
           * @type {boolean|undefined}
           */
          axis.horiz = chart.inverted && !axis.isZAxis ? !isXAxis : isXAxis;
          /**
           * Whether the axis is the x-axis.
           *
           * @name Highcharts.Axis#isXAxis
           * @type {boolean|undefined}
           */
          axis.isXAxis = isXAxis;
          /**
           * The collection where the axis belongs, for example `xAxis`, `yAxis`
           * or `colorAxis`. Corresponds to properties on Chart, for example
           * {@link Chart.xAxis}.
           *
           * @name Highcharts.Axis#coll
           * @type {string}
           */
          axis.coll = axis.coll || (isXAxis ? 'xAxis' : 'yAxis');
          fireEvent(this, 'init', { userOptions: userOptions });
          axis.opposite = userOptions.opposite; // needed in setOptions
          /**
           * The side on which the axis is rendered. 0 is top, 1 is right, 2
           * is bottom and 3 is left.
           *
           * @name Highcharts.Axis#side
           * @type {number}
           */
          axis.side = userOptions.side || (axis.horiz ?
              (axis.opposite ? 0 : 2) : // top : bottom
              (axis.opposite ? 1 : 3)); // right : left
          /**
           * Current options for the axis after merge of defaults and user's
           * options.
           *
           * @name Highcharts.Axis#options
           * @type {Highcharts.AxisOptions}
           */
          axis.setOptions(userOptions);
          var options = this.options, type = options.type, isDatetimeAxis = type === 'datetime';
          axis.labelFormatter = options.labels.formatter ||
              // can be overwritten by dynamic format
              axis.defaultLabelFormatter;
          /**
           * User's options for this axis without defaults.
           *
           * @name Highcharts.Axis#userOptions
           * @type {Highcharts.AxisOptions}
           */
          axis.userOptions = userOptions;
          axis.minPixelPadding = 0;
          /**
           * Whether the axis is reversed. Based on the `axis.reversed`,
           * option, but inverted charts have reversed xAxis by default.
           *
           * @name Highcharts.Axis#reversed
           * @type {boolean}
           */
          axis.reversed = options.reversed;
          axis.visible = options.visible !== false;
          axis.zoomEnabled = options.zoomEnabled !== false;
          // Initial categories
          axis.hasNames =
              type === 'category' || options.categories === true;
          axis.categories = options.categories || axis.hasNames;
          if (!axis.names) { // Preserve on update (#3830)
              axis.names = [];
              axis.names.keys = {};
          }
          // Placeholder for plotlines and plotbands groups
          axis.plotLinesAndBandsGroups = {};
          // Shorthand types
          axis.isLog = type === 'logarithmic';
          axis.isDatetimeAxis = isDatetimeAxis;
          axis.positiveValuesOnly = axis.isLog && !axis.allowNegativeLog;
          // Flag, if axis is linked to another axis
          axis.isLinked = defined(options.linkedTo);
          /**
           * List of major ticks mapped by postition on axis.
           *
           * @see {@link Highcharts.Tick}
           *
           * @private
           * @name Highcharts.Axis#ticks
           * @type {Highcharts.Dictionary<Highcharts.Tick>}
           */
          axis.ticks = {};
          axis.labelEdge = [];
          /**
           * List of minor ticks mapped by position on the axis.
           *
           * @see {@link Highcharts.Tick}
           *
           * @private
           * @name Highcharts.Axis#minorTicks
           * @type {Highcharts.Dictionary<Highcharts.Tick>}
           */
          axis.minorTicks = {};
          // List of plotLines/Bands
          axis.plotLinesAndBands = [];
          // Alternate bands
          axis.alternateBands = {};
          // Axis metrics
          axis.len = 0;
          axis.minRange = axis.userMinRange = options.minRange || options.maxZoom;
          axis.range = options.range;
          axis.offset = options.offset || 0;
          // Dictionary for stacks
          axis.stacks = {};
          axis.oldStacks = {};
          axis.stacksTouched = 0;
          /**
           * The maximum value of the axis. In a logarithmic axis, this is the
           * logarithm of the real value, and the real value can be obtained from
           * {@link Axis#getExtremes}.
           *
           * @name Highcharts.Axis#max
           * @type {number|null}
           */
          axis.max = null;
          /**
           * The minimum value of the axis. In a logarithmic axis, this is the
           * logarithm of the real value, and the real value can be obtained from
           * {@link Axis#getExtremes}.
           *
           * @name Highcharts.Axis#min
           * @type {number|null}
           */
          axis.min = null;
          /**
           * The processed crosshair options.
           *
           * @name Highcharts.Axis#crosshair
           * @type {boolean|Highcharts.AxisCrosshairOptions}
           */
          axis.crosshair = pick(options.crosshair, splat(chart.options.tooltip.crosshairs)[isXAxis ? 0 : 1], false);
          var events = axis.options.events;
          // Register. Don't add it again on Axis.update().
          if (chart.axes.indexOf(axis) === -1) { //
              if (isXAxis) { // #2713
                  chart.axes.splice(chart.xAxis.length, 0, axis);
              }
              else {
                  chart.axes.push(axis);
              }
              chart[axis.coll].push(axis);
          }
          /**
           * All series associated to the axis.
           *
           * @name Highcharts.Axis#series
           * @type {Array<Highcharts.Series>}
           */
          axis.series = axis.series || []; // populated by Series
          // Reversed axis
          if (chart.inverted &&
              !axis.isZAxis &&
              isXAxis &&
              axis.reversed === undefined) {
              axis.reversed = true;
          }
          // register event listeners
          objectEach(events, function (event, eventType) {
              if (H.isFunction(event)) {
                  addEvent(axis, eventType, event);
              }
          });
          // extend logarithmic axis
          axis.lin2log = options.linearToLogConverter || axis.lin2log;
          if (axis.isLog) {
              axis.val2lin = axis.log2lin;
              axis.lin2val = axis.lin2log;
          }
          fireEvent(this, 'afterInit');
      },
      /**
       * Merge and set options.
       *
       * @private
       * @function Highcharts.Axis#setOptions
       * @param {Highcharts.AxisOptions} userOptions
       * @return {void}
       * @fires Highcharts.Axis#event:afterSetOptions
       */
      setOptions: function (userOptions) {
          this.options = merge(this.defaultOptions, (this.coll === 'yAxis') && this.defaultYAxisOptions, [
              this.defaultTopAxisOptions,
              this.defaultRightAxisOptions,
              this.defaultBottomAxisOptions,
              this.defaultLeftAxisOptions
          ][this.side], merge(
          // if set in setOptions (#1053):
          defaultOptions[this.coll], userOptions));
          fireEvent(this, 'afterSetOptions', { userOptions: userOptions });
      },
      /**
       * The default label formatter. The context is a special config object for
       * the label. In apps, use the
       * [labels.formatter](https://api.highcharts.com/highcharts/xAxis.labels.formatter)
       * instead except when a modification is needed.
       * @private
       * @return {string}
       */
      defaultLabelFormatter: function () {
          var axis = this.axis, value = this.value, time = axis.chart.time, categories = axis.categories, dateTimeLabelFormat = this.dateTimeLabelFormat, lang = defaultOptions.lang, numericSymbols = lang.numericSymbols, numSymMagnitude = lang.numericSymbolMagnitude || 1000, i = numericSymbols && numericSymbols.length, multi, ret, formatOption = axis.options.labels.format, 
          // make sure the same symbol is added for all labels on a linear
          // axis
          numericSymbolDetector = axis.isLog ?
              Math.abs(value) :
              axis.tickInterval;
          if (formatOption) {
              ret = format(formatOption, this, time);
          }
          else if (categories) {
              ret = value;
          }
          else if (dateTimeLabelFormat) { // datetime axis
              ret = time.dateFormat(dateTimeLabelFormat, value);
          }
          else if (i && numericSymbolDetector >= 1000) {
              // Decide whether we should add a numeric symbol like k (thousands)
              // or M (millions). If we are to enable this in tooltip or other
              // places as well, we can move this logic to the numberFormatter and
              // enable it by a parameter.
              while (i-- && ret === undefined) {
                  multi = Math.pow(numSymMagnitude, i + 1);
                  if (
                  // Only accept a numeric symbol when the distance is more
                  // than a full unit. So for example if the symbol is k, we
                  // don't accept numbers like 0.5k.
                  numericSymbolDetector >= multi &&
                      // Accept one decimal before the symbol. Accepts 0.5k but
                      // not 0.25k. How does this work with the previous?
                      (value * 10) % multi === 0 &&
                      numericSymbols[i] !== null &&
                      value !== 0) { // #5480
                      ret = H.numberFormat(value / multi, -1) + numericSymbols[i];
                  }
              }
          }
          if (ret === undefined) {
              if (Math.abs(value) >= 10000) { // add thousands separators
                  ret = H.numberFormat(value, -1);
              }
              else { // small numbers
                  ret = H.numberFormat(value, -1, undefined, ''); // #2466
              }
          }
          return ret;
      },
      /**
       * Get the minimum and maximum for the series of each axis. The function
       * analyzes the axis series and updates `this.dataMin` and `this.dataMax`.
       * @private
       * @fires Highcharts.Axis#event:afterGetSeriesExtremes
       * @fires Highcharts.Axis#event:getSeriesExtremes
       */
      getSeriesExtremes: function () {
          var axis = this, chart = axis.chart, xExtremes;
          fireEvent(this, 'getSeriesExtremes', null, function () {
              axis.hasVisibleSeries = false;
              // Reset properties in case we're redrawing (#3353)
              axis.dataMin = axis.dataMax = axis.threshold = null;
              axis.softThreshold = !axis.isXAxis;
              if (axis.buildStacks) {
                  axis.buildStacks();
              }
              // loop through this axis' series
              axis.series.forEach(function (series) {
                  if (series.visible ||
                      !chart.options.chart.ignoreHiddenSeries) {
                      var seriesOptions = series.options, xData, threshold = seriesOptions.threshold, seriesDataMin, seriesDataMax;
                      axis.hasVisibleSeries = true;
                      // Validate threshold in logarithmic axes
                      if (axis.positiveValuesOnly && threshold <= 0) {
                          threshold = null;
                      }
                      // Get dataMin and dataMax for X axes
                      if (axis.isXAxis) {
                          xData = series.xData;
                          if (xData.length) {
                              xExtremes = series.getXExtremes(xData);
                              // If xData contains values which is not numbers,
                              // then filter them out. To prevent performance hit,
                              // we only do this after we have already found
                              // seriesDataMin because in most cases all data is
                              // valid. #5234.
                              seriesDataMin = xExtremes.min;
                              seriesDataMax = xExtremes.max;
                              if (!isNumber(seriesDataMin) &&
                                  // #5010:
                                  !(seriesDataMin instanceof Date)) {
                                  xData = xData.filter(isNumber);
                                  xExtremes = series.getXExtremes(xData);
                                  // Do it again with valid data
                                  seriesDataMin = xExtremes.min;
                                  seriesDataMax = xExtremes.max;
                              }
                              if (xData.length) {
                                  axis.dataMin = Math.min(pick(axis.dataMin, seriesDataMin), seriesDataMin);
                                  axis.dataMax = Math.max(pick(axis.dataMax, seriesDataMax), seriesDataMax);
                              }
                          }
                          // Get dataMin and dataMax for Y axes, as well as handle
                          // stacking and processed data
                      }
                      else {
                          // Get this particular series extremes
                          series.getExtremes();
                          seriesDataMax = series.dataMax;
                          seriesDataMin = series.dataMin;
                          // Get the dataMin and dataMax so far. If percentage is
                          // used, the min and max are always 0 and 100. If
                          // seriesDataMin and seriesDataMax is null, then series
                          // doesn't have active y data, we continue with nulls
                          if (defined(seriesDataMin) && defined(seriesDataMax)) {
                              axis.dataMin = Math.min(pick(axis.dataMin, seriesDataMin), seriesDataMin);
                              axis.dataMax = Math.max(pick(axis.dataMax, seriesDataMax), seriesDataMax);
                          }
                          // Adjust to threshold
                          if (defined(threshold)) {
                              axis.threshold = threshold;
                          }
                          // If any series has a hard threshold, it takes
                          // precedence
                          if (!seriesOptions.softThreshold ||
                              axis.positiveValuesOnly) {
                              axis.softThreshold = false;
                          }
                      }
                  }
              });
          });
          fireEvent(this, 'afterGetSeriesExtremes');
      },
      /**
       * Translate from axis value to pixel position on the chart, or back. Use
       * the `toPixels` and `toValue` functions in applications.
       * @private
       * @return {number|undefined}
       */
      translate: function (val, backwards, cvsCoord, old, handleLog, pointPlacement) {
          var axis = this.linkedParent || this, // #1417
          sign = 1, cvsOffset = 0, localA = old ? axis.oldTransA : axis.transA, localMin = old ? axis.oldMin : axis.min, returnValue = 0, minPixelPadding = axis.minPixelPadding, doPostTranslate = (axis.isOrdinal ||
              axis.isBroken ||
              (axis.isLog && handleLog)) && axis.lin2val;
          if (!localA) {
              localA = axis.transA;
          }
          // In vertical axes, the canvas coordinates start from 0 at the top like
          // in SVG.
          if (cvsCoord) {
              sign *= -1; // canvas coordinates inverts the value
              cvsOffset = axis.len;
          }
          // Handle reversed axis
          if (axis.reversed) {
              sign *= -1;
              cvsOffset -= sign * (axis.sector || axis.len);
          }
          // From pixels to value
          if (backwards) { // reverse translation
              val = val * sign + cvsOffset;
              val -= minPixelPadding;
              // from chart pixel to value:
              returnValue = val / localA + localMin;
              if (doPostTranslate) { // log and ordinal axes
                  returnValue = axis.lin2val(returnValue);
              }
              // From value to pixels
          }
          else {
              if (doPostTranslate) { // log and ordinal axes
                  val = axis.val2lin(val);
              }
              returnValue = isNumber(localMin) ?
                  (sign * (val - localMin) * localA +
                      cvsOffset +
                      (sign * minPixelPadding) +
                      (isNumber(pointPlacement) ?
                          localA * pointPlacement :
                          0)) :
                  undefined;
          }
          return returnValue;
      },
      /**
       * Translate a value in terms of axis units into pixels within the chart.
       *
       * @function Highcharts.Axis#toPixels
       *
       * @param {number} value
       *        A value in terms of axis units.
       *
       * @param {boolean} paneCoordinates
       *        Whether to return the pixel coordinate relative to the chart or
       *        just the axis/pane itself.
       *
       * @return {number}
       *         Pixel position of the value on the chart or axis.
       */
      toPixels: function (value, paneCoordinates) {
          return this.translate(value, false, !this.horiz, null, true) +
              (paneCoordinates ? 0 : this.pos);
      },
      /**
       * Translate a pixel position along the axis to a value in terms of axis
       * units.
       *
       * @function Highcharts.Axis#toValue
       *
       * @param {number} pixel
       *        The pixel value coordinate.
       *
       * @param {boolean} [paneCoordiantes=false]
       *        Whether the input pixel is relative to the chart or just the
       *        axis/pane itself.
       *
       * @return {number}
       *         The axis value.
       */
      toValue: function (pixel, paneCoordinates) {
          return this.translate(pixel - (paneCoordinates ? 0 : this.pos), true, !this.horiz, null, true);
      },
      /**
       * Create the path for a plot line that goes from the given value on
       * this axis, across the plot to the opposite side. Also used internally for
       * grid lines and crosshairs.
       *
       * @function Highcharts.Axis#getPlotLinePath
       *
       * @param {Highcharts.AxisPlotLinePathOptionsObject} options
       *        Options for the path.
       *
       * @return {Highcharts.SVGPathArray|null}
       *         The SVG path definition for the plot line.
       */
      getPlotLinePath: function (options) {
          var axis = this, chart = axis.chart, axisLeft = axis.left, axisTop = axis.top, old = options.old, value = options.value, translatedValue = options.translatedValue, lineWidth = options.lineWidth, force = options.force, x1, y1, x2, y2, cHeight = (old && chart.oldChartHeight) || chart.chartHeight, cWidth = (old && chart.oldChartWidth) || chart.chartWidth, skip, transB = axis.transB, evt, 
          /**
           * Check if x is between a and b. If not, either move to a/b
           * or skip, depending on the force parameter.
           */
          between = function (x, a, b) {
              if (force !== 'pass' && x < a || x > b) {
                  if (force) {
                      x = Math.min(Math.max(a, x), b);
                  }
                  else {
                      skip = true;
                  }
              }
              return x;
          };
          evt = {
              value: value,
              lineWidth: lineWidth,
              old: old,
              force: force,
              acrossPanes: options.acrossPanes,
              translatedValue: translatedValue
          };
          fireEvent(this, 'getPlotLinePath', evt, function (e) {
              translatedValue = pick(translatedValue, axis.translate(value, null, null, old));
              // Keep the translated value within sane bounds, and avoid Infinity
              // to fail the isNumber test (#7709).
              translatedValue = Math.min(Math.max(-1e5, translatedValue), 1e5);
              x1 = x2 = Math.round(translatedValue + transB);
              y1 = y2 = Math.round(cHeight - translatedValue - transB);
              if (!isNumber(translatedValue)) { // no min or max
                  skip = true;
                  force = false; // #7175, don't force it when path is invalid
              }
              else if (axis.horiz) {
                  y1 = axisTop;
                  y2 = cHeight - axis.bottom;
                  x1 = x2 = between(x1, axisLeft, axisLeft + axis.width);
              }
              else {
                  x1 = axisLeft;
                  x2 = cWidth - axis.right;
                  y1 = y2 = between(y1, axisTop, axisTop + axis.height);
              }
              e.path = skip && !force ?
                  null :
                  chart.renderer.crispLine(['M', x1, y1, 'L', x2, y2], lineWidth || 1);
          });
          return evt.path;
      },
      /**
       * Internal function to et the tick positions of a linear axis to round
       * values like whole tens or every five.
       *
       * @function Highcharts.Axis#getLinearTickPositions
       *
       * @param {number} tickInterval
       *        The normalized tick interval.
       *
       * @param {number} min
       *        Axis minimum.
       *
       * @param {number} max
       *        Axis maximum.
       *
       * @return {Array<number>}
       *         An array of axis values where ticks should be placed.
       */
      getLinearTickPositions: function (tickInterval, min, max) {
          var pos, lastPos, roundedMin = correctFloat(Math.floor(min / tickInterval) * tickInterval), roundedMax = correctFloat(Math.ceil(max / tickInterval) * tickInterval), tickPositions = [], precision;
          // When the precision is higher than what we filter out in
          // correctFloat, skip it (#6183).
          if (correctFloat(roundedMin + tickInterval) === roundedMin) {
              precision = 20;
          }
          // For single points, add a tick regardless of the relative position
          // (#2662, #6274)
          if (this.single) {
              return [min];
          }
          // Populate the intermediate values
          pos = roundedMin;
          while (pos <= roundedMax) {
              // Place the tick on the rounded value
              tickPositions.push(pos);
              // Always add the raw tickInterval, not the corrected one.
              pos = correctFloat(pos + tickInterval, precision);
              // If the interval is not big enough in the current min - max range
              // to actually increase the loop variable, we need to break out to
              // prevent endless loop. Issue #619
              if (pos === lastPos) {
                  break;
              }
              // Record the last value
              lastPos = pos;
          }
          return tickPositions;
      },
      /**
       * Resolve the new minorTicks/minorTickInterval options into the legacy
       * loosely typed minorTickInterval option.
       *
       * @function Highcharts.Axis#getMinorTickInterval
       * @return {number|"auto"|null}
       */
      getMinorTickInterval: function () {
          var options = this.options;
          if (options.minorTicks === true) {
              return pick(options.minorTickInterval, 'auto');
          }
          if (options.minorTicks === false) {
              return null;
          }
          return options.minorTickInterval;
      },
      /**
       * Internal function to return the minor tick positions. For logarithmic
       * axes, the same logic as for major ticks is reused.
       *
       * @function Highcharts.Axis#getMinorTickPositions
       *
       * @return {Array<number>}
       *         An array of axis values where ticks should be placed.
       */
      getMinorTickPositions: function () {
          var axis = this, options = axis.options, tickPositions = axis.tickPositions, minorTickInterval = axis.minorTickInterval, minorTickPositions = [], pos, pointRangePadding = axis.pointRangePadding || 0, min = axis.min - pointRangePadding, // #1498
          max = axis.max + pointRangePadding, // #1498
          range = max - min;
          // If minor ticks get too dense, they are hard to read, and may cause
          // long running script. So we don't draw them.
          if (range && range / minorTickInterval < axis.len / 3) { // #3875
              if (axis.isLog) {
                  // For each interval in the major ticks, compute the minor ticks
                  // separately.
                  this.paddedTicks.forEach(function (pos, i, paddedTicks) {
                      if (i) {
                          minorTickPositions.push.apply(minorTickPositions, axis.getLogTickPositions(minorTickInterval, paddedTicks[i - 1], paddedTicks[i], true));
                      }
                  });
              }
              else if (axis.isDatetimeAxis &&
                  this.getMinorTickInterval() === 'auto') { // #1314
                  minorTickPositions = minorTickPositions.concat(axis.getTimeTicks(axis.normalizeTimeTickInterval(minorTickInterval), min, max, options.startOfWeek));
              }
              else {
                  for (pos = min + (tickPositions[0] - min) % minorTickInterval; pos <= max; pos += minorTickInterval) {
                      // Very, very, tight grid lines (#5771)
                      if (pos === minorTickPositions[0]) {
                          break;
                      }
                      minorTickPositions.push(pos);
                  }
              }
          }
          if (minorTickPositions.length !== 0) {
              axis.trimTicks(minorTickPositions); // #3652 #3743 #1498 #6330
          }
          return minorTickPositions;
      },
      /**
       * Adjust the min and max for the minimum range. Keep in mind that the
       * series data is not yet processed, so we don't have information on data
       * cropping and grouping, or updated `axis.pointRange` or
       * `series.pointRange`. The data can't be processed until we have finally
       * established min and max.
       * @private
       */
      adjustForMinRange: function () {
          var axis = this, options = axis.options, min = axis.min, max = axis.max, zoomOffset, spaceAvailable, closestDataRange, i, distance, xData, loopLength, minArgs, maxArgs, minRange;
          // Set the automatic minimum range based on the closest point distance
          if (axis.isXAxis && axis.minRange === undefined && !axis.isLog) {
              if (defined(options.min) || defined(options.max)) {
                  axis.minRange = null; // don't do this again
              }
              else {
                  // Find the closest distance between raw data points, as opposed
                  // to closestPointRange that applies to processed points
                  // (cropped and grouped)
                  axis.series.forEach(function (series) {
                      xData = series.xData;
                      loopLength = series.xIncrement ? 1 : xData.length - 1;
                      for (i = loopLength; i > 0; i--) {
                          distance = xData[i] - xData[i - 1];
                          if (closestDataRange === undefined ||
                              distance < closestDataRange) {
                              closestDataRange = distance;
                          }
                      }
                  });
                  axis.minRange = Math.min(closestDataRange * 5, axis.dataMax - axis.dataMin);
              }
          }
          // if minRange is exceeded, adjust
          if (max - min < axis.minRange) {
              spaceAvailable =
                  axis.dataMax - axis.dataMin >=
                      axis.minRange;
              minRange = axis.minRange;
              zoomOffset = (minRange - max + min) / 2;
              // if min and max options have been set, don't go beyond it
              minArgs = [
                  min - zoomOffset,
                  pick(options.min, min - zoomOffset)
              ];
              // If space is available, stay within the data range
              if (spaceAvailable) {
                  minArgs[2] = axis.isLog ?
                      axis.log2lin(axis.dataMin) :
                      axis.dataMin;
              }
              min = arrayMax(minArgs);
              maxArgs = [
                  min + minRange,
                  pick(options.max, min + minRange)
              ];
              // If space is availabe, stay within the data range
              if (spaceAvailable) {
                  maxArgs[2] = axis.isLog ?
                      axis.log2lin(axis.dataMax) :
                      axis.dataMax;
              }
              max = arrayMin(maxArgs);
              // now if the max is adjusted, adjust the min back
              if (max - min < minRange) {
                  minArgs[0] = max - minRange;
                  minArgs[1] = pick(options.min, max - minRange);
                  min = arrayMax(minArgs);
              }
          }
          // Record modified extremes
          axis.min = min;
          axis.max = max;
      },
      /**
       * Find the closestPointRange across all series.
       * @private
       */
      getClosest: function () {
          var ret;
          if (this.categories) {
              ret = 1;
          }
          else {
              this.series.forEach(function (series) {
                  var seriesClosest = series.closestPointRange, visible = series.visible ||
                      !series.chart.options.chart.ignoreHiddenSeries;
                  if (!series.noSharedTooltip &&
                      defined(seriesClosest) &&
                      visible) {
                      ret = defined(ret) ?
                          Math.min(ret, seriesClosest) :
                          seriesClosest;
                  }
              });
          }
          return ret;
      },
      /**
       * When a point name is given and no x, search for the name in the existing
       * categories, or if categories aren't provided, search names or create a
       * new category (#2522).
       * @private
       * @param {Highcharts.Point} point The point to inspect.
       * @return {number} The X value that the point is given.
       */
      nameToX: function (point) {
          var explicitCategories = isArray(this.categories), names = explicitCategories ? this.categories : this.names, nameX = point.options.x, x;
          point.series.requireSorting = false;
          if (!defined(nameX)) {
              nameX = this.options.uniqueNames === false ?
                  point.series.autoIncrement() :
                  (explicitCategories ?
                      names.indexOf(point.name) :
                      pick(names.keys[point.name], -1));
          }
          if (nameX === -1) { // Not found in currenct categories
              if (!explicitCategories) {
                  x = names.length;
              }
          }
          else {
              x = nameX;
          }
          // Write the last point's name to the names array
          if (x !== undefined) {
              this.names[x] = point.name;
              // Backwards mapping is much faster than array searching (#7725)
              this.names.keys[point.name] = x;
          }
          return x;
      },
      /**
       * When changes have been done to series data, update the axis.names.
       * @private
       */
      updateNames: function () {
          var axis = this, names = this.names, i = names.length;
          if (i > 0) {
              Object.keys(names.keys).forEach(function (key) {
                  delete (names.keys)[key];
              });
              names.length = 0;
              this.minRange = this.userMinRange; // Reset
              (this.series || []).forEach(function (series) {
                  // Reset incrementer (#5928)
                  series.xIncrement = null;
                  // When adding a series, points are not yet generated
                  if (!series.points || series.isDirtyData) {
                      // When we're updating the series with data that is longer
                      // than it was, and cropThreshold is passed, we need to make
                      // sure that the axis.max is increased _before_ running the
                      // premature processData. Otherwise this early iteration of
                      // processData will crop the points to axis.max, and the
                      // names array will be too short (#5857).
                      axis.max = Math.max(axis.max, series.xData.length - 1);
                      series.processData();
                      series.generatePoints();
                  }
                  series.data.forEach(function (point, i) {
                      var x;
                      if (point &&
                          point.options &&
                          point.name !== undefined // #9562
                      ) {
                          x = axis.nameToX(point);
                          if (x !== undefined && x !== point.x) {
                              point.x = x;
                              series.xData[i] = x;
                          }
                      }
                  });
              });
          }
      },
      /**
       * Update translation information.
       * @private
       * @param {boolean} [saveOld]
       * @fires Highcharts.Axis#event:afterSetAxisTranslation
       */
      setAxisTranslation: function (saveOld) {
          var axis = this, range = axis.max - axis.min, pointRange = axis.axisPointRange || 0, closestPointRange, minPointOffset = 0, pointRangePadding = 0, linkedParent = axis.linkedParent, ordinalCorrection, hasCategories = !!axis.categories, transA = axis.transA, isXAxis = axis.isXAxis;
          // Adjust translation for padding. Y axis with categories need to go
          // through the same (#1784).
          if (isXAxis || hasCategories || pointRange) {
              // Get the closest points
              closestPointRange = axis.getClosest();
              if (linkedParent) {
                  minPointOffset = linkedParent.minPointOffset;
                  pointRangePadding = linkedParent.pointRangePadding;
              }
              else {
                  axis.series.forEach(function (series) {
                      var seriesPointRange = hasCategories ?
                          1 :
                          (isXAxis ?
                              pick(series.options.pointRange, closestPointRange, 0) :
                              (axis.axisPointRange || 0)), // #2806
                      pointPlacement = series.options.pointPlacement;
                      pointRange = Math.max(pointRange, seriesPointRange);
                      if (!axis.single || hasCategories) {
                          // TODO: series should internally set x- and y-
                          // pointPlacement to simplify this logic.
                          var isPointPlacementAxis = (seriesTypes.xrange &&
                              series instanceof seriesTypes.xrange) ? !isXAxis : isXAxis;
                          // minPointOffset is the value padding to the left of
                          // the axis in order to make room for points with a
                          // pointRange, typically columns. When the
                          // pointPlacement option is 'between' or 'on', this
                          // padding does not apply.
                          minPointOffset = Math.max(minPointOffset, isPointPlacementAxis && isString(pointPlacement) ?
                              0 :
                              seriesPointRange / 2);
                          // Determine the total padding needed to the length of
                          // the axis to make room for the pointRange. If the
                          // series' pointPlacement is 'on', no padding is added.
                          pointRangePadding = Math.max(pointRangePadding, isPointPlacementAxis && pointPlacement === 'on' ?
                              0 :
                              seriesPointRange);
                      }
                  });
              }
              // Record minPointOffset and pointRangePadding
              ordinalCorrection = axis.ordinalSlope && closestPointRange ?
                  axis.ordinalSlope / closestPointRange :
                  1; // #988, #1853
              axis.minPointOffset = minPointOffset =
                  minPointOffset * ordinalCorrection;
              axis.pointRangePadding =
                  pointRangePadding = pointRangePadding * ordinalCorrection;
              // pointRange means the width reserved for each point, like in a
              // column chart
              axis.pointRange = Math.min(pointRange, range);
              // closestPointRange means the closest distance between points. In
              // columns it is mostly equal to pointRange, but in lines pointRange
              // is 0 while closestPointRange is some other value
              if (isXAxis) {
                  axis.closestPointRange = closestPointRange;
              }
          }
          // Secondary values
          if (saveOld) {
              axis.oldTransA = transA;
          }
          axis.translationSlope = axis.transA = transA =
              axis.staticScale ||
                  axis.len / ((range + pointRangePadding) || 1);
          // Translation addend
          axis.transB = axis.horiz ? axis.left : axis.bottom;
          axis.minPixelPadding = transA * minPointOffset;
          fireEvent(this, 'afterSetAxisTranslation');
      },
      /**
       * @private
       * @return {number}
       */
      minFromRange: function () {
          return this.max - this.range;
      },
      /**
       * Set the tick positions to round values and optionally extend the extremes
       * to the nearest tick.
       * @private
       * @param {boolean} secondPass
       * @fires Highcharts.Axis#event:foundExtremes
       */
      setTickInterval: function (secondPass) {
          var axis = this, chart = axis.chart, options = axis.options, isLog = axis.isLog, isDatetimeAxis = axis.isDatetimeAxis, isXAxis = axis.isXAxis, isLinked = axis.isLinked, maxPadding = options.maxPadding, minPadding = options.minPadding, length, linkedParentExtremes, tickIntervalOption = options.tickInterval, minTickInterval, tickPixelIntervalOption = options.tickPixelInterval, categories = axis.categories, threshold = isNumber(axis.threshold) ? axis.threshold : null, softThreshold = axis.softThreshold, thresholdMin, thresholdMax, hardMin, hardMax;
          if (!isDatetimeAxis && !categories && !isLinked) {
              this.getTickAmount();
          }
          // Min or max set either by zooming/setExtremes or initial options
          hardMin = pick(axis.userMin, options.min);
          hardMax = pick(axis.userMax, options.max);
          // Linked axis gets the extremes from the parent axis
          if (isLinked) {
              axis.linkedParent = chart[axis.coll][options.linkedTo];
              linkedParentExtremes = axis.linkedParent.getExtremes();
              axis.min = pick(linkedParentExtremes.min, linkedParentExtremes.dataMin);
              axis.max = pick(linkedParentExtremes.max, linkedParentExtremes.dataMax);
              if (options.type !== axis.linkedParent.options.type) {
                  // Can't link axes of different type
                  H.error(11, 1, chart);
              }
              // Initial min and max from the extreme data values
          }
          else {
              // Adjust to hard threshold
              if (!softThreshold && defined(threshold)) {
                  if (axis.dataMin >= threshold) {
                      thresholdMin = threshold;
                      minPadding = 0;
                  }
                  else if (axis.dataMax <= threshold) {
                      thresholdMax = threshold;
                      maxPadding = 0;
                  }
              }
              axis.min = pick(hardMin, thresholdMin, axis.dataMin);
              axis.max = pick(hardMax, thresholdMax, axis.dataMax);
          }
          if (isLog) {
              if (axis.positiveValuesOnly &&
                  !secondPass &&
                  Math.min(axis.min, pick(axis.dataMin, axis.min)) <= 0) { // #978
                  // Can't plot negative values on log axis
                  H.error(10, 1, chart);
              }
              // The correctFloat cures #934, float errors on full tens. But it
              // was too aggressive for #4360 because of conversion back to lin,
              // therefore use precision 15.
              axis.min = correctFloat(axis.log2lin(axis.min), 15);
              axis.max = correctFloat(axis.log2lin(axis.max), 15);
          }
          // handle zoomed range
          if (axis.range && defined(axis.max)) {
              // #618, #6773:
              axis.userMin = axis.min = hardMin =
                  Math.max(axis.dataMin, axis.minFromRange());
              axis.userMax = hardMax = axis.max;
              axis.range = null; // don't use it when running setExtremes
          }
          // Hook for Highstock Scroller. Consider combining with beforePadding.
          fireEvent(axis, 'foundExtremes');
          // Hook for adjusting this.min and this.max. Used by bubble series.
          if (axis.beforePadding) {
              axis.beforePadding();
          }
          // adjust min and max for the minimum range
          axis.adjustForMinRange();
          // Pad the values to get clear of the chart's edges. To avoid
          // tickInterval taking the padding into account, we do this after
          // computing tick interval (#1337).
          if (!categories &&
              !axis.axisPointRange &&
              !axis.usePercentage &&
              !isLinked &&
              defined(axis.min) &&
              defined(axis.max)) {
              length = axis.max - axis.min;
              if (length) {
                  if (!defined(hardMin) && minPadding) {
                      axis.min -= length * minPadding;
                  }
                  if (!defined(hardMax) && maxPadding) {
                      axis.max += length * maxPadding;
                  }
              }
          }
          // Handle options for floor, ceiling, softMin and softMax (#6359)
          if (isNumber(options.softMin) &&
              !isNumber(axis.userMin) &&
              options.softMin < axis.min) {
              axis.min = hardMin = options.softMin; // #6894
          }
          if (isNumber(options.softMax) &&
              !isNumber(axis.userMax) &&
              options.softMax > axis.max) {
              axis.max = hardMax = options.softMax; // #6894
          }
          if (isNumber(options.floor)) {
              axis.min = Math.min(Math.max(axis.min, options.floor), Number.MAX_VALUE);
          }
          if (isNumber(options.ceiling)) {
              axis.max = Math.max(Math.min(axis.max, options.ceiling), pick(axis.userMax, -Number.MAX_VALUE));
          }
          // When the threshold is soft, adjust the extreme value only if the data
          // extreme and the padded extreme land on either side of the threshold.
          // For example, a series of [0, 1, 2, 3] would make the yAxis add a tick
          // for -1 because of the default minPadding and startOnTick options.
          // This is prevented by the softThreshold option.
          if (softThreshold && defined(axis.dataMin)) {
              threshold = threshold || 0;
              if (!defined(hardMin) &&
                  axis.min < threshold &&
                  axis.dataMin >= threshold) {
                  axis.min = axis.options.minRange ?
                      Math.min(threshold, axis.max -
                          axis.minRange) :
                      threshold;
              }
              else if (!defined(hardMax) &&
                  axis.max > threshold &&
                  axis.dataMax <= threshold) {
                  axis.max = axis.options.minRange ?
                      Math.max(threshold, axis.min +
                          axis.minRange) :
                      threshold;
              }
          }
          // get tickInterval
          if (axis.min === axis.max ||
              axis.min === undefined ||
              axis.max === undefined) {
              axis.tickInterval = 1;
          }
          else if (isLinked &&
              !tickIntervalOption &&
              tickPixelIntervalOption ===
                  axis.linkedParent.options.tickPixelInterval) {
              axis.tickInterval = tickIntervalOption =
                  axis.linkedParent.tickInterval;
          }
          else {
              axis.tickInterval = pick(tickIntervalOption, this.tickAmount ?
                  ((axis.max - axis.min) /
                      Math.max(this.tickAmount - 1, 1)) :
                  undefined, 
              // For categoried axis, 1 is default, for linear axis use
              // tickPix
              categories ?
                  1 :
                  // don't let it be more than the data range
                  (axis.max - axis.min) *
                      tickPixelIntervalOption /
                      Math.max(axis.len, tickPixelIntervalOption));
          }
          // Now we're finished detecting min and max, crop and group series data.
          // This is in turn needed in order to find tick positions in ordinal
          // axes.
          if (isXAxis && !secondPass) {
              axis.series.forEach(function (series) {
                  series.processData(axis.min !== axis.oldMin || axis.max !== axis.oldMax);
              });
          }
          // set the translation factor used in translate function
          axis.setAxisTranslation(true);
          // hook for ordinal axes and radial axes
          if (axis.beforeSetTickPositions) {
              axis.beforeSetTickPositions();
          }
          // hook for extensions, used in Highstock ordinal axes
          if (axis.postProcessTickInterval) {
              axis.tickInterval = axis.postProcessTickInterval(axis.tickInterval);
          }
          // In column-like charts, don't cramp in more ticks than there are
          // points (#1943, #4184)
          if (axis.pointRange && !tickIntervalOption) {
              axis.tickInterval = Math.max(axis.pointRange, axis.tickInterval);
          }
          // Before normalizing the tick interval, handle minimum tick interval.
          // This applies only if tickInterval is not defined.
          minTickInterval = pick(options.minTickInterval, (axis.isDatetimeAxis && axis.closestPointRange));
          if (!tickIntervalOption && axis.tickInterval < minTickInterval) {
              axis.tickInterval = minTickInterval;
          }
          // for linear axes, get magnitude and normalize the interval
          if (!isDatetimeAxis && !isLog && !tickIntervalOption) {
              axis.tickInterval = normalizeTickInterval(axis.tickInterval, null, getMagnitude(axis.tickInterval), 
              // If the tick interval is between 0.5 and 5 and the axis max is
              // in the order of thousands, chances are we are dealing with
              // years. Don't allow decimals. #3363.
              pick(options.allowDecimals, !(axis.tickInterval > 0.5 &&
                  axis.tickInterval < 5 &&
                  axis.max > 1000 &&
                  axis.max < 9999)), !!this.tickAmount);
          }
          // Prevent ticks from getting so close that we can't draw the labels
          if (!this.tickAmount) {
              axis.tickInterval = axis.unsquish();
          }
          this.setTickPositions();
      },
      /**
       * Now we have computed the normalized tickInterval, get the tick positions
       *
       * @function Highcharts.Axis#setTickPositions
       *
       * @fires Highcharts.Axis#event:afterSetTickPositions
       */
      setTickPositions: function () {
          var options = this.options, tickPositions, tickPositionsOption = options.tickPositions, minorTickIntervalOption = this.getMinorTickInterval(), tickPositioner = options.tickPositioner, startOnTick = options.startOnTick, endOnTick = options.endOnTick;
          // Set the tickmarkOffset
          this.tickmarkOffset = (this.categories &&
              options.tickmarkPlacement === 'between' &&
              this.tickInterval === 1) ? 0.5 : 0; // #3202
          // get minorTickInterval
          this.minorTickInterval =
              minorTickIntervalOption === 'auto' &&
                  this.tickInterval ?
                  this.tickInterval / 5 :
                  minorTickIntervalOption;
          // When there is only one point, or all points have the same value on
          // this axis, then min and max are equal and tickPositions.length is 0
          // or 1. In this case, add some padding in order to center the point,
          // but leave it with one tick. #1337.
          this.single =
              this.min === this.max &&
                  defined(this.min) &&
                  !this.tickAmount &&
                  (
                  // Data is on integer (#6563)
                  parseInt(this.min, 10) === this.min ||
                      // Between integers and decimals are not allowed (#6274)
                      options.allowDecimals !== false);
          /**
           * Contains the current positions that are laid out on the axis. The
           * positions are numbers in terms of axis values. In a category axis
           * they are integers, in a datetime axis they are also integers, but
           * designating milliseconds.
           *
           * This property is read only - for modifying the tick positions, use
           * the `tickPositioner` callback or [axis.tickPositions(
           * https://api.highcharts.com/highcharts/xAxis.tickPositions) option
           * instead.
           *
           * @name Highcharts.Axis#tickPositions
           * @type {Array<number>|undefined}
           */
          this.tickPositions =
              // Find the tick positions. Work on a copy (#1565)
              tickPositions =
                  (tickPositionsOption && tickPositionsOption.slice());
          if (!tickPositions) {
              // Too many ticks (#6405). Create a friendly warning and provide two
              // ticks so at least we can show the data series.
              if (!this.ordinalPositions &&
                  ((this.max - this.min) /
                      this.tickInterval >
                      Math.max(2 * this.len, 200))) {
                  tickPositions = [this.min, this.max];
                  H.error(19, false, this.chart);
              }
              else if (this.isDatetimeAxis) {
                  tickPositions = this.getTimeTicks(this.normalizeTimeTickInterval(this.tickInterval, options.units), this.min, this.max, options.startOfWeek, this.ordinalPositions, this.closestPointRange, true);
              }
              else if (this.isLog) {
                  tickPositions = this.getLogTickPositions(this.tickInterval, this.min, this.max);
              }
              else {
                  tickPositions = this.getLinearTickPositions(this.tickInterval, this.min, this.max);
              }
              // Too dense ticks, keep only the first and last (#4477)
              if (tickPositions.length > this.len) {
                  tickPositions = [tickPositions[0], tickPositions.pop()];
                  // Reduce doubled value (#7339)
                  if (tickPositions[0] === tickPositions[1]) {
                      tickPositions.length = 1;
                  }
              }
              this.tickPositions = tickPositions;
              // Run the tick positioner callback, that allows modifying auto tick
              // positions.
              if (tickPositioner) {
                  tickPositioner = tickPositioner.apply(this, [this.min, this.max]);
                  if (tickPositioner) {
                      this.tickPositions = tickPositions = tickPositioner;
                  }
              }
          }
          // Reset min/max or remove extremes based on start/end on tick
          this.paddedTicks = tickPositions.slice(0); // Used for logarithmic minor
          this.trimTicks(tickPositions, startOnTick, endOnTick);
          if (!this.isLinked) {
              // Substract half a unit (#2619, #2846, #2515, #3390),
              // but not in case of multiple ticks (#6897)
              if (this.single && tickPositions.length < 2 && !this.categories) {
                  this.min -= 0.5;
                  this.max += 0.5;
              }
              if (!tickPositionsOption && !tickPositioner) {
                  this.adjustTickAmount();
              }
          }
          fireEvent(this, 'afterSetTickPositions');
      },
      /**
       * Handle startOnTick and endOnTick by either adapting to padding min/max or
       * rounded min/max. Also handle single data points.
       * @private
       */
      trimTicks: function (tickPositions, startOnTick, endOnTick) {
          var roundedMin = tickPositions[0], roundedMax = tickPositions[tickPositions.length - 1], minPointOffset = this.minPointOffset || 0;
          fireEvent(this, 'trimTicks');
          if (!this.isLinked) {
              if (startOnTick && roundedMin !== -Infinity) { // #6502
                  this.min = roundedMin;
              }
              else {
                  while (this.min - minPointOffset > tickPositions[0]) {
                      tickPositions.shift();
                  }
              }
              if (endOnTick) {
                  this.max = roundedMax;
              }
              else {
                  while (this.max + minPointOffset <
                      tickPositions[tickPositions.length - 1]) {
                      tickPositions.pop();
                  }
              }
              // If no tick are left, set one tick in the middle (#3195)
              if (tickPositions.length === 0 &&
                  defined(roundedMin) &&
                  !this.options.tickPositions) {
                  tickPositions.push((roundedMax + roundedMin) / 2);
              }
          }
      },
      /**
       * Check if there are multiple axes in the same pane.
       * @private
       * @return {boolean|undefined} True if there are other axes.
       */
      alignToOthers: function () {
          var others = // Whether there is another axis to pair with this one
           {}, hasOther, options = this.options;
          if (
          // Only if alignTicks is true
          this.chart.options.chart.alignTicks !== false &&
              options.alignTicks !== false &&
              // Disabled when startOnTick or endOnTick are false (#7604)
              options.startOnTick !== false &&
              options.endOnTick !== false &&
              // Don't try to align ticks on a log axis, they are not evenly
              // spaced (#6021)
              !this.isLog) {
              this.chart[this.coll].forEach(function (axis) {
                  var otherOptions = axis.options, horiz = axis.horiz, key = [
                      horiz ? otherOptions.left : otherOptions.top,
                      otherOptions.width,
                      otherOptions.height,
                      otherOptions.pane
                  ].join(',');
                  if (axis.series.length) { // #4442
                      if (others[key]) {
                          hasOther = true; // #4201
                      }
                      else {
                          others[key] = 1;
                      }
                  }
              });
          }
          return hasOther;
      },
      /**
       * Find the max ticks of either the x and y axis collection, and record it
       * in `this.tickAmount`.
       * @private
       * @return {void}
       */
      getTickAmount: function () {
          var options = this.options, tickAmount = options.tickAmount, tickPixelInterval = options.tickPixelInterval;
          if (!defined(options.tickInterval) &&
              this.len < tickPixelInterval &&
              !this.isRadial &&
              !this.isLog &&
              options.startOnTick &&
              options.endOnTick) {
              tickAmount = 2;
          }
          if (!tickAmount && this.alignToOthers()) {
              // Add 1 because 4 tick intervals require 5 ticks (including first
              // and last)
              tickAmount = Math.ceil(this.len / tickPixelInterval) + 1;
          }
          // For tick amounts of 2 and 3, compute five ticks and remove the
          // intermediate ones. This prevents the axis from adding ticks that are
          // too far away from the data extremes.
          if (tickAmount < 4) {
              this.finalTickAmt = tickAmount;
              tickAmount = 5;
          }
          this.tickAmount = tickAmount;
      },
      /**
       * When using multiple axes, adjust the number of ticks to match the highest
       * number of ticks in that group.
       * @private
       * @return {void}
       */
      adjustTickAmount: function () {
          var axis = this, axisOptions = axis.options, tickInterval = axis.tickInterval, tickPositions = axis.tickPositions, tickAmount = axis.tickAmount, finalTickAmt = axis.finalTickAmt, currentTickAmount = tickPositions && tickPositions.length, threshold = pick(axis.threshold, axis.softThreshold ? 0 : null), min, len, i;
          if (axis.hasData()) {
              if (currentTickAmount < tickAmount) {
                  min = axis.min;
                  while (tickPositions.length < tickAmount) {
                      // Extend evenly for both sides unless we're on the
                      // threshold (#3965)
                      if (tickPositions.length % 2 ||
                          min === threshold) {
                          // to the end
                          tickPositions.push(correctFloat(tickPositions[tickPositions.length - 1] +
                              tickInterval));
                      }
                      else {
                          // to the start
                          tickPositions.unshift(correctFloat(tickPositions[0] - tickInterval));
                      }
                  }
                  axis.transA *= (currentTickAmount - 1) / (tickAmount - 1);
                  // Do not crop when ticks are not extremes (#9841)
                  axis.min = axisOptions.startOnTick ?
                      tickPositions[0] :
                      Math.min(axis.min, tickPositions[0]);
                  axis.max = axisOptions.endOnTick ?
                      tickPositions[tickPositions.length - 1] :
                      Math.max(axis.max, tickPositions[tickPositions.length - 1]);
                  // We have too many ticks, run second pass to try to reduce ticks
              }
              else if (currentTickAmount > tickAmount) {
                  axis.tickInterval *= 2;
                  axis.setTickPositions();
              }
              // The finalTickAmt property is set in getTickAmount
              if (defined(finalTickAmt)) {
                  i = len = tickPositions.length;
                  while (i--) {
                      if (
                      // Remove every other tick
                      (finalTickAmt === 3 && i % 2 === 1) ||
                          // Remove all but first and last
                          (finalTickAmt <= 2 && i > 0 && i < len - 1)) {
                          tickPositions.splice(i, 1);
                      }
                  }
                  axis.finalTickAmt = undefined;
              }
          }
      },
      /**
       * Set the scale based on data min and max, user set min and max or options.
       * @private
       * @return {void}
       * @fires Highcharts.Axis#event:afterSetScale
       */
      setScale: function () {
          var axis = this, isDirtyData = axis.series.some(function (series) {
              return (series.isDirtyData ||
                  series.isDirty ||
                  // When x axis is dirty, we need new data extremes for y as
                  // well:
                  series.xAxis && series.xAxis.isDirty);
          }), isDirtyAxisLength;
          axis.oldMin = axis.min;
          axis.oldMax = axis.max;
          axis.oldAxisLength = axis.len;
          // set the new axisLength
          axis.setAxisSize();
          isDirtyAxisLength = axis.len !== axis.oldAxisLength;
          // do we really need to go through all this?
          if (isDirtyAxisLength ||
              isDirtyData ||
              axis.isLinked ||
              axis.forceRedraw ||
              axis.userMin !== axis.oldUserMin ||
              axis.userMax !== axis.oldUserMax ||
              axis.alignToOthers()) {
              if (axis.resetStacks) {
                  axis.resetStacks();
              }
              axis.forceRedraw = false;
              // get data extremes if needed
              axis.getSeriesExtremes();
              // get fixed positions based on tickInterval
              axis.setTickInterval();
              // record old values to decide whether a rescale is necessary later
              // on (#540)
              axis.oldUserMin = axis.userMin;
              axis.oldUserMax = axis.userMax;
              // Mark as dirty if it is not already set to dirty and extremes have
              // changed. #595.
              if (!axis.isDirty) {
                  axis.isDirty =
                      isDirtyAxisLength ||
                          axis.min !== axis.oldMin ||
                          axis.max !== axis.oldMax;
              }
          }
          else if (axis.cleanStacks) {
              axis.cleanStacks();
          }
          fireEvent(this, 'afterSetScale');
      },
      /**
       * Set the minimum and maximum of the axes after render time. If the
       * `startOnTick` and `endOnTick` options are true, the minimum and maximum
       * values are rounded off to the nearest tick. To prevent this, these
       * options can be set to false before calling setExtremes. Also, setExtremes
       * will not allow a range lower than the `minRange` option, which by default
       * is the range of five points.
       *
       * @sample highcharts/members/axis-setextremes/
       *         Set extremes from a button
       * @sample highcharts/members/axis-setextremes-datetime/
       *         Set extremes on a datetime axis
       * @sample highcharts/members/axis-setextremes-off-ticks/
       *         Set extremes off ticks
       * @sample stock/members/axis-setextremes/
       *         Set extremes in Highstock
       * @sample maps/members/axis-setextremes/
       *         Set extremes in Highmaps
       *
       * @function Highcharts.Axis#setExtremes
       *
       * @param {number} [newMin]
       *        The new minimum value.
       *
       * @param {number} [newMax]
       *        The new maximum value.
       *
       * @param {boolean} [redraw=true]
       *        Whether to redraw the chart or wait for an explicit call to
       *        {@link Highcharts.Chart#redraw}
       *
       * @param {boolean|Highcharts.AnimationOptionsObject} [animation=true]
       *        Enable or modify animations.
       *
       * @param {*} [eventArguments]
       *        Arguments to be accessed in event handler.
       *
       * @return {void}
       *
       * @fires Highcharts.Axis#event:setExtremes
       */
      setExtremes: function (newMin, newMax, redraw, animation, eventArguments) {
          var axis = this, chart = axis.chart;
          redraw = pick(redraw, true); // defaults to true
          axis.series.forEach(function (serie) {
              delete serie.kdTree;
          });
          // Extend the arguments with min and max
          eventArguments = extend(eventArguments, {
              min: newMin,
              max: newMax
          });
          // Fire the event
          fireEvent(axis, 'setExtremes', eventArguments, function () {
              axis.userMin = newMin;
              axis.userMax = newMax;
              axis.eventArgs = eventArguments;
              if (redraw) {
                  chart.redraw(animation);
              }
          });
      },
      /**
       * Overridable method for zooming chart. Pulled out in a separate method to
       * allow overriding in stock charts.
       * @private
       * @function Highcharts.Axis#zoom
       * @param {number} newMin
       * @param {number} newMax
       * @return {boolean}
       */
      zoom: function (newMin, newMax) {
          var dataMin = this.dataMin, dataMax = this.dataMax, options = this.options, min = Math.min(dataMin, pick(options.min, dataMin)), max = Math.max(dataMax, pick(options.max, dataMax)), evt = {
              newMin: newMin,
              newMax: newMax
          };
          fireEvent(this, 'zoom', evt, function (e) {
              // Use e.newMin and e.newMax - event handlers may have altered them
              var newMin = e.newMin, newMax = e.newMax;
              if (newMin !== this.min || newMax !== this.max) { // #5790
                  // Prevent pinch zooming out of range. Check for defined is for
                  // #1946. #1734.
                  if (!this.allowZoomOutside) {
                      // #6014, sometimes newMax will be smaller than min (or
                      // newMin will be larger than max).
                      if (defined(dataMin)) {
                          if (newMin < min) {
                              newMin = min;
                          }
                          if (newMin > max) {
                              newMin = max;
                          }
                      }
                      if (defined(dataMax)) {
                          if (newMax < min) {
                              newMax = min;
                          }
                          if (newMax > max) {
                              newMax = max;
                          }
                      }
                  }
                  // In full view, displaying the reset zoom button is not
                  // required
                  this.displayBtn = newMin !== undefined || newMax !== undefined;
                  // Do it
                  this.setExtremes(newMin, newMax, false, undefined, { trigger: 'zoom' });
              }
              e.zoomed = true;
          });
          return evt.zoomed;
      },
      /**
       * Update the axis metrics.
       * @private
       * @return {void}
       */
      setAxisSize: function () {
          var chart = this.chart, options = this.options, 
          // [top, right, bottom, left]
          offsets = options.offsets || [0, 0, 0, 0], horiz = this.horiz, 
          // Check for percentage based input values. Rounding fixes problems
          // with column overflow and plot line filtering (#4898, #4899)
          width = this.width = Math.round(H.relativeLength(pick(options.width, chart.plotWidth - offsets[3] + offsets[1]), chart.plotWidth)), height = this.height = Math.round(H.relativeLength(pick(options.height, chart.plotHeight - offsets[0] + offsets[2]), chart.plotHeight)), top = this.top = Math.round(H.relativeLength(pick(options.top, chart.plotTop + offsets[0]), chart.plotHeight, chart.plotTop)), left = this.left = Math.round(H.relativeLength(pick(options.left, chart.plotLeft + offsets[3]), chart.plotWidth, chart.plotLeft));
          // Expose basic values to use in Series object and navigator
          this.bottom = chart.chartHeight - height - top;
          this.right = chart.chartWidth - width - left;
          // Direction agnostic properties
          this.len = Math.max(horiz ? width : height, 0); // Math.max fixes #905
          this.pos = horiz ? left : top; // distance from SVG origin
      },
      /**
       * Get the current extremes for the axis.
       *
       * @sample highcharts/members/axis-getextremes/
       *         Report extremes by click on a button
       * @sample maps/members/axis-getextremes/
       *         Get extremes in Highmaps
       *
       * @function Highcharts.Axis#getExtremes
       *
       * @returns {Highcharts.ExtremesObject}
       *          An object containing extremes information.
       */
      getExtremes: function () {
          var axis = this, isLog = axis.isLog;
          return {
              min: isLog ?
                  correctFloat(axis.lin2log(axis.min)) :
                  axis.min,
              max: isLog ?
                  correctFloat(axis.lin2log(axis.max)) :
                  axis.max,
              dataMin: axis.dataMin,
              dataMax: axis.dataMax,
              userMin: axis.userMin,
              userMax: axis.userMax
          };
      },
      /**
       * Get the zero plane either based on zero or on the min or max value.
       * Used in bar and area plots.
       *
       * @function Highcharts.Axis#getThreshold
       *
       * @param {number} threshold
       *        The threshold in axis values.
       *
       * @return {number|undefined}
       *         The translated threshold position in terms of pixels, and
       *         corrected to stay within the axis bounds.
       */
      getThreshold: function (threshold) {
          var axis = this, isLog = axis.isLog, realMin = isLog ? axis.lin2log(axis.min) : axis.min, realMax = isLog ? axis.lin2log(axis.max) : axis.max;
          if (threshold === null || threshold === -Infinity) {
              threshold = realMin;
          }
          else if (threshold === Infinity) {
              threshold = realMax;
          }
          else if (realMin > threshold) {
              threshold = realMin;
          }
          else if (realMax < threshold) {
              threshold = realMax;
          }
          return axis.translate(threshold, 0, 1, 0, 1);
      },
      /**
       * Compute auto alignment for the axis label based on which side the axis is
       * on and the given rotation for the label.
       * @private
       * @param {number} rotation The rotation in degrees as set by either the
       * `rotation` or `autoRotation` options.
       * @return {Highcharts.AlignValue} Can be `"center"`, `"left"` or `"right"`.
       */
      autoLabelAlign: function (rotation) {
          var angle = (pick(rotation, 0) - (this.side * 90) + 720) % 360, evt = { align: 'center' };
          fireEvent(this, 'autoLabelAlign', evt, function (e) {
              if (angle > 15 && angle < 165) {
                  e.align = 'right';
              }
              else if (angle > 195 && angle < 345) {
                  e.align = 'left';
              }
          });
          return evt.align;
      },
      /**
       * Get the tick length and width for the axis based on axis options.
       * @private
       * @param {string} [prefix]
       *        'tick' or 'minorTick'
       * @return {Array<number>}
       *         An array of tickLength and tickWidth
       */
      tickSize: function (prefix) {
          var options = this.options, tickLength = options[prefix + 'Length'], tickWidth = pick(options[prefix + 'Width'], 
          // Default to 1 on linear and datetime X axes
          prefix === 'tick' && this.isXAxis && !this.categories ? 1 : 0), e, tickSize;
          if (tickWidth && tickLength) {
              // Negate the length
              if (options[prefix + 'Position'] === 'inside') {
                  tickLength = -tickLength;
              }
              tickSize = [tickLength, tickWidth];
          }
          e = { tickSize: tickSize };
          fireEvent(this, 'afterTickSize', e);
          return e.tickSize;
      },
      /**
       * Return the size of the labels.
       * @private
       * @return {Highcharts.FontMetricsObject}
       */
      labelMetrics: function () {
          var index = this.tickPositions && this.tickPositions[0] || 0;
          return this.chart.renderer.fontMetrics(this.options.labels.style &&
              this.options.labels.style.fontSize, this.ticks[index] && this.ticks[index].label);
      },
      /**
       * Prevent the ticks from getting so close we can't draw the labels. On a
       * horizontal axis, this is handled by rotating the labels, removing ticks
       * and adding ellipsis. On a vertical axis remove ticks and add ellipsis.
       * @private
       * @return {number}
       */
      unsquish: function () {
          var labelOptions = this.options.labels, horiz = this.horiz, tickInterval = this.tickInterval, newTickInterval = tickInterval, slotSize = this.len / (((this.categories ? 1 : 0) +
              this.max -
              this.min) /
              tickInterval), rotation, rotationOption = labelOptions.rotation, labelMetrics = this.labelMetrics(), step, bestScore = Number.MAX_VALUE, autoRotation, range = this.max - this.min, 
          // Return the multiple of tickInterval that is needed to avoid
          // collision
          getStep = function (spaceNeeded) {
              var step = spaceNeeded / (slotSize || 1);
              step = step > 1 ? Math.ceil(step) : 1;
              // Guard for very small or negative angles (#9835)
              if (step * tickInterval > range &&
                  spaceNeeded !== Infinity &&
                  slotSize !== Infinity &&
                  range) {
                  step = Math.ceil(range / tickInterval);
              }
              return correctFloat(step * tickInterval);
          };
          if (horiz) {
              autoRotation = !labelOptions.staggerLines &&
                  !labelOptions.step &&
                  ( // #3971
                  defined(rotationOption) ?
                      [rotationOption] :
                      slotSize < pick(labelOptions.autoRotationLimit, 80) && labelOptions.autoRotation);
              if (autoRotation) {
                  // Loop over the given autoRotation options, and determine
                  // which gives the best score. The best score is that with
                  // the lowest number of steps and a rotation closest
                  // to horizontal.
                  autoRotation.forEach(function (rot) {
                      var score;
                      if (rot === rotationOption ||
                          (rot && rot >= -90 && rot <= 90)) { // #3891
                          step = getStep(Math.abs(labelMetrics.h / Math.sin(deg2rad * rot)));
                          score = step + Math.abs(rot / 360);
                          if (score < bestScore) {
                              bestScore = score;
                              rotation = rot;
                              newTickInterval = step;
                          }
                      }
                  });
              }
          }
          else if (!labelOptions.step) { // #4411
              newTickInterval = getStep(labelMetrics.h);
          }
          this.autoRotation = autoRotation;
          this.labelRotation = pick(rotation, rotationOption);
          return newTickInterval;
      },
      /**
       * Get the general slot width for labels/categories on this axis. This may
       * change between the pre-render (from Axis.getOffset) and the final tick
       * rendering and placement.
       * @private
       * @param {Highcharts.Tick} [tick] Optionally, calculate the slot width
       * basing on tick label. It is used in highcharts-3d module, where the slots
       * has different widths depending on perspective angles.
       * @return {number} The pixel width allocated to each axis label.
       */
      getSlotWidth: function (tick) {
          // #5086, #1580, #1931
          var chart = this.chart, horiz = this.horiz, labelOptions = this.options.labels, slotCount = Math.max(this.tickPositions.length - (this.categories ? 0 : 1), 1), marginLeft = chart.margin[3];
          return (tick &&
              tick.slotWidth // Used by grid axis
          ) || (horiz &&
              (labelOptions.step || 0) < 2 &&
              !labelOptions.rotation && // #4415
              ((this.staggerLines || 1) * this.len) / slotCount) || (!horiz && (
          // #7028
          (labelOptions.style &&
              parseInt(labelOptions.style.width, 10)) ||
              (marginLeft &&
                  (marginLeft - chart.spacing[3])) ||
              chart.chartWidth * 0.33));
      },
      /**
       * Render the axis labels and determine whether ellipsis or rotation need to
       * be applied.
       * @private
       * @return {void}
       */
      renderUnsquish: function () {
          var chart = this.chart, renderer = chart.renderer, tickPositions = this.tickPositions, ticks = this.ticks, labelOptions = this.options.labels, labelStyleOptions = (labelOptions && labelOptions.style || {}), horiz = this.horiz, slotWidth = this.getSlotWidth(), innerWidth = Math.max(1, Math.round(slotWidth - 2 * (labelOptions.padding || 5))), attr = {}, labelMetrics = this.labelMetrics(), textOverflowOption = (labelOptions.style &&
              labelOptions.style.textOverflow), commonWidth, commonTextOverflow, maxLabelLength = 0, label, i, pos;
          // Set rotation option unless it is "auto", like in gauges
          if (!isString(labelOptions.rotation)) {
              // #4443:
              attr.rotation = labelOptions.rotation || 0;
          }
          // Get the longest label length
          tickPositions.forEach(function (tick) {
              tick = ticks[tick];
              if (tick &&
                  tick.label &&
                  tick.label.textPxLength > maxLabelLength) {
                  maxLabelLength = tick.label.textPxLength;
              }
          });
          this.maxLabelLength = maxLabelLength;
          // Handle auto rotation on horizontal axis
          if (this.autoRotation) {
              // Apply rotation only if the label is too wide for the slot, and
              // the label is wider than its height.
              if (maxLabelLength > innerWidth &&
                  maxLabelLength > labelMetrics.h) {
                  attr.rotation = this.labelRotation;
              }
              else {
                  this.labelRotation = 0;
              }
              // Handle word-wrap or ellipsis on vertical axis
          }
          else if (slotWidth) {
              // For word-wrap or ellipsis
              commonWidth = innerWidth;
              if (!textOverflowOption) {
                  commonTextOverflow = 'clip';
                  // On vertical axis, only allow word wrap if there is room
                  // for more lines.
                  i = tickPositions.length;
                  while (!horiz && i--) {
                      pos = tickPositions[i];
                      label = ticks[pos].label;
                      if (label) {
                          // Reset ellipsis in order to get the correct
                          // bounding box (#4070)
                          if (label.styles &&
                              label.styles.textOverflow === 'ellipsis') {
                              label.css({ textOverflow: 'clip' });
                              // Set the correct width in order to read
                              // the bounding box height (#4678, #5034)
                          }
                          else if (label.textPxLength > slotWidth) {
                              label.css({ width: slotWidth + 'px' });
                          }
                          if (label.getBBox().height > (this.len / tickPositions.length -
                              (labelMetrics.h - labelMetrics.f))) {
                              label.specificTextOverflow = 'ellipsis';
                          }
                      }
                  }
              }
          }
          // Add ellipsis if the label length is significantly longer than ideal
          if (attr.rotation) {
              commonWidth = (maxLabelLength > chart.chartHeight * 0.5 ?
                  chart.chartHeight * 0.33 :
                  maxLabelLength);
              if (!textOverflowOption) {
                  commonTextOverflow = 'ellipsis';
              }
          }
          // Set the explicit or automatic label alignment
          this.labelAlign = labelOptions.align ||
              this.autoLabelAlign(this.labelRotation);
          if (this.labelAlign) {
              attr.align = this.labelAlign;
          }
          // Apply general and specific CSS
          tickPositions.forEach(function (pos) {
              var tick = ticks[pos], label = tick && tick.label, widthOption = labelStyleOptions.width, css = {};
              if (label) {
                  // This needs to go before the CSS in old IE (#4502)
                  label.attr(attr);
                  if (tick.shortenLabel) {
                      tick.shortenLabel();
                  }
                  else if (commonWidth &&
                      !widthOption &&
                      // Setting width in this case messes with the bounding box
                      // (#7975)
                      labelStyleOptions.whiteSpace !== 'nowrap' &&
                      (
                      // Speed optimizing, #7656
                      commonWidth < label.textPxLength ||
                          // Resetting CSS, #4928
                          label.element.tagName === 'SPAN')) {
                      css.width = commonWidth;
                      if (!textOverflowOption) {
                          css.textOverflow = (label.specificTextOverflow ||
                              commonTextOverflow);
                      }
                      label.css(css);
                      // Reset previously shortened label (#8210)
                  }
                  else if (label.styles &&
                      label.styles.width &&
                      !css.width &&
                      !widthOption) {
                      label.css({ width: null });
                  }
                  delete label.specificTextOverflow;
                  tick.rotation = attr.rotation;
              }
          }, this);
          // Note: Why is this not part of getLabelPosition?
          this.tickRotCorr = renderer.rotCorr(labelMetrics.b, this.labelRotation || 0, this.side !== 0);
      },
      /**
       * Return true if the axis has associated data.
       *
       * @function Highcharts.Axis#hasData
       *
       * @return {boolean}
       *         True if the axis has associated visible series and those series
       *         have either valid data points or explicit `min` and `max`
       *         settings.
       */
      hasData: function () {
          return this.series.some(function (s) {
              return s.hasData();
          }) ||
              (this.options.showEmpty &&
                  defined(this.min) &&
                  defined(this.max));
      },
      /**
       * Adds the title defined in axis.options.title.
       *
       * @function Highcharts.Axis#addTitle
       *
       * @param {boolean} [display]
       *        Whether or not to display the title.
       *
       * @return {void}
       */
      addTitle: function (display) {
          var axis = this, renderer = axis.chart.renderer, horiz = axis.horiz, opposite = axis.opposite, options = axis.options, axisTitleOptions = options.title, textAlign, styledMode = axis.chart.styledMode;
          if (!axis.axisTitle) {
              textAlign = axisTitleOptions.textAlign;
              if (!textAlign) {
                  textAlign = (horiz ? {
                      low: 'left',
                      middle: 'center',
                      high: 'right'
                  } : {
                      low: opposite ? 'right' : 'left',
                      middle: 'center',
                      high: opposite ? 'left' : 'right'
                  })[axisTitleOptions.align];
              }
              axis.axisTitle = renderer
                  .text(axisTitleOptions.text, 0, 0, axisTitleOptions.useHTML)
                  .attr({
                  zIndex: 7,
                  rotation: axisTitleOptions.rotation || 0,
                  align: textAlign
              })
                  .addClass('highcharts-axis-title');
              // #7814, don't mutate style option
              if (!styledMode) {
                  axis.axisTitle.css(merge(axisTitleOptions.style));
              }
              axis.axisTitle.add(axis.axisGroup);
              axis.axisTitle.isNew = true;
          }
          // Max width defaults to the length of the axis
          if (!styledMode &&
              !axisTitleOptions.style.width &&
              !axis.isRadial) {
              axis.axisTitle.css({
                  width: axis.len
              });
          }
          // hide or show the title depending on whether showEmpty is set
          axis.axisTitle[display ? 'show' : 'hide'](display);
      },
      /**
       * Generates a tick for initial positioning.
       * @private
       * @param {number} pos The tick position in axis values.
       * @param {number} [i] The index of the tick in {@link Axis.tickPositions}.
       */
      generateTick: function (pos) {
          var ticks = this.ticks;
          if (!ticks[pos]) {
              ticks[pos] = new Tick(this, pos);
          }
          else {
              ticks[pos].addLabel(); // update labels depending on tick interval
          }
      },
      /**
       * Render the tick labels to a preliminary position to get their sizes
       * @private
       * @return {void}
       * @fires Highcharts.Axis#event:afterGetOffset
       */
      getOffset: function () {
          var axis = this, chart = axis.chart, renderer = chart.renderer, options = axis.options, tickPositions = axis.tickPositions, ticks = axis.ticks, horiz = axis.horiz, side = axis.side, invertedSide = chart.inverted &&
              !axis.isZAxis ? [1, 0, 3, 2][side] : side, hasData, showAxis, titleOffset = 0, titleOffsetOption, titleMargin = 0, axisTitleOptions = options.title, labelOptions = options.labels, labelOffset = 0, // reset
          labelOffsetPadded, axisOffset = chart.axisOffset, clipOffset = chart.clipOffset, clip, directionFactor = [-1, 1, 1, -1][side], className = options.className, axisParent = axis.axisParent, // Used in color axis
          lineHeightCorrection, tickSize;
          // For reuse in Axis.render
          hasData = axis.hasData();
          axis.showAxis = showAxis = hasData || pick(options.showEmpty, true);
          // Set/reset staggerLines
          axis.staggerLines = axis.horiz && labelOptions.staggerLines;
          // Create the axisGroup and gridGroup elements on first iteration
          if (!axis.axisGroup) {
              axis.gridGroup = renderer.g('grid')
                  .attr({ zIndex: options.gridZIndex || 1 })
                  .addClass('highcharts-' + this.coll.toLowerCase() + '-grid ' +
                  (className || ''))
                  .add(axisParent);
              axis.axisGroup = renderer.g('axis')
                  .attr({ zIndex: options.zIndex || 2 })
                  .addClass('highcharts-' + this.coll.toLowerCase() + ' ' +
                  (className || ''))
                  .add(axisParent);
              axis.labelGroup = renderer.g('axis-labels')
                  .attr({ zIndex: labelOptions.zIndex || 7 })
                  .addClass('highcharts-' + axis.coll.toLowerCase() + '-labels ' +
                  (className || ''))
                  .add(axisParent);
          }
          if (hasData || axis.isLinked) {
              // Generate ticks
              tickPositions.forEach(function (pos, i) {
                  // i is not used here, but may be used in overrides
                  axis.generateTick(pos, i);
              });
              axis.renderUnsquish();
              // Left side must be align: right and right side must
              // have align: left for labels
              axis.reserveSpaceDefault = (side === 0 ||
                  side === 2 ||
                  { 1: 'left', 3: 'right' }[side] === axis.labelAlign);
              if (pick(labelOptions.reserveSpace, axis.labelAlign === 'center' ? true : null, axis.reserveSpaceDefault)) {
                  tickPositions.forEach(function (pos) {
                      // get the highest offset
                      labelOffset = Math.max(ticks[pos].getLabelSize(), labelOffset);
                  });
              }
              if (axis.staggerLines) {
                  labelOffset *= axis.staggerLines;
              }
              axis.labelOffset = labelOffset * (axis.opposite ? -1 : 1);
          }
          else { // doesn't have data
              objectEach(ticks, function (tick, n) {
                  tick.destroy();
                  delete ticks[n];
              });
          }
          if (axisTitleOptions &&
              axisTitleOptions.text &&
              axisTitleOptions.enabled !== false) {
              axis.addTitle(showAxis);
              if (showAxis && axisTitleOptions.reserveSpace !== false) {
                  axis.titleOffset = titleOffset =
                      axis.axisTitle.getBBox()[horiz ? 'height' : 'width'];
                  titleOffsetOption = axisTitleOptions.offset;
                  titleMargin = defined(titleOffsetOption) ?
                      0 :
                      pick(axisTitleOptions.margin, horiz ? 5 : 10);
              }
          }
          // Render the axis line
          axis.renderLine();
          // handle automatic or user set offset
          axis.offset = directionFactor * pick(options.offset, axisOffset[side] ? axisOffset[side] + (options.margin || 0) : 0);
          axis.tickRotCorr = axis.tickRotCorr || { x: 0, y: 0 }; // polar
          if (side === 0) {
              lineHeightCorrection = -axis.labelMetrics().h;
          }
          else if (side === 2) {
              lineHeightCorrection = axis.tickRotCorr.y;
          }
          else {
              lineHeightCorrection = 0;
          }
          // Find the padded label offset
          labelOffsetPadded = Math.abs(labelOffset) + titleMargin;
          if (labelOffset) {
              labelOffsetPadded -= lineHeightCorrection;
              labelOffsetPadded += directionFactor * (horiz ?
                  pick(labelOptions.y, axis.tickRotCorr.y + directionFactor * 8) :
                  labelOptions.x);
          }
          axis.axisTitleMargin = pick(titleOffsetOption, labelOffsetPadded);
          if (axis.getMaxLabelDimensions) {
              axis.maxLabelDimensions = axis.getMaxLabelDimensions(ticks, tickPositions);
          }
          // Due to GridAxis.tickSize, tickSize should be calculated after ticks
          // has rendered.
          tickSize = this.tickSize('tick');
          axisOffset[side] = Math.max(axisOffset[side], axis.axisTitleMargin + titleOffset +
              directionFactor * axis.offset, labelOffsetPadded, // #3027
          tickPositions && tickPositions.length && tickSize ?
              tickSize[0] + directionFactor * axis.offset :
              0 // #4866
          );
          // Decide the clipping needed to keep the graph inside
          // the plot area and axis lines
          clip = options.offset ?
              0 :
              // #4308, #4371:
              Math.floor(axis.axisLine.strokeWidth() / 2) * 2;
          clipOffset[invertedSide] =
              Math.max(clipOffset[invertedSide], clip);
          fireEvent(this, 'afterGetOffset');
      },
      /**
       * Internal function to get the path for the axis line. Extended for polar
       * charts.
       *
       * @function Highcharts.Axis#getLinePath
       *
       * @param {number} lineWidth
       *        The line width in pixels.
       *
       * @return {Highcharts.SVGPathArray}
       *         The SVG path definition in array form.
       */
      getLinePath: function (lineWidth) {
          var chart = this.chart, opposite = this.opposite, offset = this.offset, horiz = this.horiz, lineLeft = this.left + (opposite ? this.width : 0) + offset, lineTop = chart.chartHeight - this.bottom -
              (opposite ? this.height : 0) + offset;
          if (opposite) {
              lineWidth *= -1; // crispify the other way - #1480, #1687
          }
          return chart.renderer
              .crispLine([
              'M',
              horiz ?
                  this.left :
                  lineLeft,
              horiz ?
                  lineTop :
                  this.top,
              'L',
              horiz ?
                  chart.chartWidth - this.right :
                  lineLeft,
              horiz ?
                  lineTop :
                  chart.chartHeight - this.bottom
          ], lineWidth);
      },
      /**
       * Render the axis line. Called internally when rendering and redrawing the
       * axis.
       *
       * @function Highcharts.Axis#renderLine
       *
       * @return {void}
       */
      renderLine: function () {
          if (!this.axisLine) {
              this.axisLine = this.chart.renderer.path()
                  .addClass('highcharts-axis-line')
                  .add(this.axisGroup);
              if (!this.chart.styledMode) {
                  this.axisLine.attr({
                      stroke: this.options.lineColor,
                      'stroke-width': this.options.lineWidth,
                      zIndex: 7
                  });
              }
          }
      },
      /**
       * Position the axis title.
       * @private
       * @return {Highcharts.PositionObject} X and Y positions for the title.
       */
      getTitlePosition: function () {
          // compute anchor points for each of the title align options
          var horiz = this.horiz, axisLeft = this.left, axisTop = this.top, axisLength = this.len, axisTitleOptions = this.options.title, margin = horiz ? axisLeft : axisTop, opposite = this.opposite, offset = this.offset, xOption = axisTitleOptions.x || 0, yOption = axisTitleOptions.y || 0, axisTitle = this.axisTitle, fontMetrics = this.chart.renderer.fontMetrics(axisTitleOptions.style &&
              axisTitleOptions.style.fontSize, axisTitle), 
          // The part of a multiline text that is below the baseline of the
          // first line. Subtract 1 to preserve pixel-perfectness from the
          // old behaviour (v5.0.12), where only one line was allowed.
          textHeightOvershoot = Math.max(axisTitle.getBBox(null, 0).height - fontMetrics.h - 1, 0), 
          // the position in the length direction of the axis
          alongAxis = {
              low: margin + (horiz ? 0 : axisLength),
              middle: margin + axisLength / 2,
              high: margin + (horiz ? axisLength : 0)
          }[axisTitleOptions.align], 
          // the position in the perpendicular direction of the axis
          offAxis = (horiz ? axisTop + this.height : axisLeft) +
              (horiz ? 1 : -1) * // horizontal axis reverses the margin
                  (opposite ? -1 : 1) * // so does opposite axes
                  this.axisTitleMargin +
              [
                  -textHeightOvershoot,
                  textHeightOvershoot,
                  fontMetrics.f,
                  -textHeightOvershoot // left
              ][this.side], titlePosition = {
              x: horiz ?
                  alongAxis + xOption :
                  offAxis + (opposite ? this.width : 0) + offset + xOption,
              y: horiz ?
                  offAxis + yOption - (opposite ? this.height : 0) + offset :
                  alongAxis + yOption
          };
          fireEvent(this, 'afterGetTitlePosition', { titlePosition: titlePosition });
          return titlePosition;
      },
      /**
       * Render a minor tick into the given position. If a minor tick already
       * exists in this position, move it.
       *
       * @function Highcharts.Axis#renderMinorTick
       *
       * @param {number} pos
       *        The position in axis values.
       *
       * @return {void}
       */
      renderMinorTick: function (pos) {
          var slideInTicks = this.chart.hasRendered && isNumber(this.oldMin), minorTicks = this.minorTicks;
          if (!minorTicks[pos]) {
              minorTicks[pos] = new Tick(this, pos, 'minor');
          }
          // Render new ticks in old position
          if (slideInTicks && minorTicks[pos].isNew) {
              minorTicks[pos].render(null, true);
          }
          minorTicks[pos].render(null, false, 1);
      },
      /**
       * Render a major tick into the given position. If a tick already exists
       * in this position, move it.
       *
       * @function Highcharts.Axis#renderTick
       *
       * @param {number} pos
       *        The position in axis values.
       *
       * @param {number} i
       *        The tick index.
       *
       * @return {void}
       */
      renderTick: function (pos, i) {
          var isLinked = this.isLinked, ticks = this.ticks, slideInTicks = this.chart.hasRendered && isNumber(this.oldMin);
          // Linked axes need an extra check to find out if
          if (!isLinked ||
              (pos >= this.min && pos <= this.max)) {
              if (!ticks[pos]) {
                  ticks[pos] = new Tick(this, pos);
              }
              // NOTE this seems like overkill. Could be handled in tick.render by
              // setting old position in attr, then set new position in animate.
              // render new ticks in old position
              if (slideInTicks && ticks[pos].isNew) {
                  // Start with negative opacity so that it is visible from
                  // halfway into the animation
                  ticks[pos].render(i, true, -1);
              }
              ticks[pos].render(i);
          }
      },
      /**
       * Render the axis.
       * @private
       * @return {void}
       * @fires Highcharts.Axis#event:afterRender
       */
      render: function () {
          var axis = this, chart = axis.chart, renderer = chart.renderer, options = axis.options, isLog = axis.isLog, isLinked = axis.isLinked, tickPositions = axis.tickPositions, axisTitle = axis.axisTitle, ticks = axis.ticks, minorTicks = axis.minorTicks, alternateBands = axis.alternateBands, stackLabelOptions = options.stackLabels, alternateGridColor = options.alternateGridColor, tickmarkOffset = axis.tickmarkOffset, axisLine = axis.axisLine, showAxis = axis.showAxis, animation = animObject(renderer.globalAnimation), from, to;
          // Reset
          axis.labelEdge.length = 0;
          axis.overlap = false;
          // Mark all elements inActive before we go over and mark the active ones
          [ticks, minorTicks, alternateBands].forEach(function (coll) {
              objectEach(coll, function (tick) {
                  tick.isActive = false;
              });
          });
          // If the series has data draw the ticks. Else only the line and title
          if (axis.hasData() || isLinked) {
              // minor ticks
              if (axis.minorTickInterval && !axis.categories) {
                  axis.getMinorTickPositions().forEach(function (pos) {
                      axis.renderMinorTick(pos);
                  });
              }
              // Major ticks. Pull out the first item and render it last so that
              // we can get the position of the neighbour label. #808.
              if (tickPositions.length) { // #1300
                  tickPositions.forEach(function (pos, i) {
                      axis.renderTick(pos, i);
                  });
                  // In a categorized axis, the tick marks are displayed
                  // between labels. So we need to add a tick mark and
                  // grid line at the left edge of the X axis.
                  if (tickmarkOffset && (axis.min === 0 || axis.single)) {
                      if (!ticks[-1]) {
                          ticks[-1] = new Tick(axis, -1, null, true);
                      }
                      ticks[-1].render(-1);
                  }
              }
              // alternate grid color
              if (alternateGridColor) {
                  tickPositions.forEach(function (pos, i) {
                      to = tickPositions[i + 1] !== undefined ?
                          tickPositions[i + 1] + tickmarkOffset :
                          axis.max - tickmarkOffset;
                      if (i % 2 === 0 &&
                          pos < axis.max &&
                          to <= axis.max + (chart.polar ?
                              -tickmarkOffset :
                              tickmarkOffset)) { // #2248, #4660
                          if (!alternateBands[pos]) {
                              alternateBands[pos] = new H.PlotLineOrBand(axis);
                          }
                          from = pos + tickmarkOffset; // #949
                          alternateBands[pos].options = {
                              from: isLog ? axis.lin2log(from) : from,
                              to: isLog ? axis.lin2log(to) : to,
                              color: alternateGridColor
                          };
                          alternateBands[pos].render();
                          alternateBands[pos].isActive = true;
                      }
                  });
              }
              // custom plot lines and bands
              if (!axis._addedPlotLB) { // only first time
                  (options.plotLines || [])
                      .concat(options.plotBands || [])
                      .forEach(function (plotLineOptions) {
                      axis.addPlotBandOrLine(plotLineOptions);
                  });
                  axis._addedPlotLB = true;
              }
          } // end if hasData
          // Remove inactive ticks
          [ticks, minorTicks, alternateBands].forEach(function (coll) {
              var i, forDestruction = [], delay = animation.duration, destroyInactiveItems = function () {
                  i = forDestruction.length;
                  while (i--) {
                      // When resizing rapidly, the same items
                      // may be destroyed in different timeouts,
                      // or the may be reactivated
                      if (coll[forDestruction[i]] &&
                          !coll[forDestruction[i]].isActive) {
                          coll[forDestruction[i]].destroy();
                          delete coll[forDestruction[i]];
                      }
                  }
              };
              objectEach(coll, function (tick, pos) {
                  if (!tick.isActive) {
                      // Render to zero opacity
                      tick.render(pos, false, 0);
                      tick.isActive = false;
                      forDestruction.push(pos);
                  }
              });
              // When the objects are finished fading out, destroy them
              syncTimeout(destroyInactiveItems, coll === alternateBands ||
                  !chart.hasRendered ||
                  !delay ?
                  0 :
                  delay);
          });
          // Set the axis line path
          if (axisLine) {
              axisLine[axisLine.isPlaced ? 'animate' : 'attr']({
                  d: this.getLinePath(axisLine.strokeWidth())
              });
              axisLine.isPlaced = true;
              // Show or hide the line depending on options.showEmpty
              axisLine[showAxis ? 'show' : 'hide'](showAxis);
          }
          if (axisTitle && showAxis) {
              var titleXy = axis.getTitlePosition();
              if (isNumber(titleXy.y)) {
                  axisTitle[axisTitle.isNew ? 'attr' : 'animate'](titleXy);
                  axisTitle.isNew = false;
              }
              else {
                  axisTitle.attr('y', -9999);
                  axisTitle.isNew = true;
              }
          }
          // Stacked totals:
          if (stackLabelOptions && stackLabelOptions.enabled) {
              axis.renderStackTotals();
          }
          // End stacked totals
          axis.isDirty = false;
          fireEvent(this, 'afterRender');
      },
      /**
       * Redraw the axis to reflect changes in the data or axis extremes. Called
       * internally from Highcharts.Chart#redraw.
       * @private
       * @return {void}
       */
      redraw: function () {
          if (this.visible) {
              // render the axis
              this.render();
              // move plot lines and bands
              this.plotLinesAndBands.forEach(function (plotLine) {
                  plotLine.render();
              });
          }
          // mark associated series as dirty and ready for redraw
          this.series.forEach(function (series) {
              series.isDirty = true;
          });
      },
      // Properties to survive after destroy, needed for Axis.update (#4317,
      // #5773, #5881).
      keepProps: ['extKey', 'hcEvents', 'names', 'series', 'userMax', 'userMin'],
      /**
       * Destroys an Axis instance. See {@link Axis#remove} for the API endpoint
       * to fully remove the axis.
       * @private
       * @param {boolean} [keepEvents] Whether to preserve events, used internally
       * in Axis.update.
       * @return {void}
       */
      destroy: function (keepEvents) {
          var axis = this, stacks = axis.stacks, plotLinesAndBands = axis.plotLinesAndBands, plotGroup, i;
          fireEvent(this, 'destroy', { keepEvents: keepEvents });
          // Remove the events
          if (!keepEvents) {
              removeEvent(axis);
          }
          // Destroy each stack total
          objectEach(stacks, function (stack, stackKey) {
              destroyObjectProperties(stack);
              stacks[stackKey] = null;
          });
          // Destroy collections
          [axis.ticks, axis.minorTicks, axis.alternateBands].forEach(function (coll) {
              destroyObjectProperties(coll);
          });
          if (plotLinesAndBands) {
              i = plotLinesAndBands.length;
              while (i--) { // #1975
                  plotLinesAndBands[i].destroy();
              }
          }
          // Destroy elements
          ['stackTotalGroup', 'axisLine', 'axisTitle', 'axisGroup',
              'gridGroup', 'labelGroup', 'cross', 'scrollbar'].forEach(function (prop) {
              if (axis[prop]) {
                  axis[prop] = axis[prop].destroy();
              }
          });
          // Destroy each generated group for plotlines and plotbands
          for (plotGroup in axis.plotLinesAndBandsGroups) { // eslint-disable-line guard-for-in
              axis.plotLinesAndBandsGroups[plotGroup] =
                  axis.plotLinesAndBandsGroups[plotGroup].destroy();
          }
          // Delete all properties and fall back to the prototype.
          objectEach(axis, function (val, key) {
              if (axis.keepProps.indexOf(key) === -1) {
                  delete axis[key];
              }
          });
      },
      /**
       * Internal function to draw a crosshair.
       *
       * @function Highcharts.Axis#drawCrosshair
       *
       * @param {Highcharts.PointerEventObject} [e]
       *        The event arguments from the modified pointer event, extended with
       *        `chartX` and `chartY`
       *
       * @param {Highcharts.Point} [point]
       *        The Point object if the crosshair snaps to points.
       *
       * @return {void}
       *
       * @fires Highcharts.Axis#event:afterDrawCrosshair
       * @fires Highcharts.Axis#event:drawCrosshair
       */
      drawCrosshair: function (e, point) {
          var path, options = this.crosshair, snap = pick(options.snap, true), pos, categorized, graphic = this.cross;
          fireEvent(this, 'drawCrosshair', { e: e, point: point });
          // Use last available event when updating non-snapped crosshairs without
          // mouse interaction (#5287)
          if (!e) {
              e = this.cross && this.cross.e;
          }
          if (
          // Disabled in options
          !this.crosshair ||
              // Snap
              ((defined(point) || !snap) === false)) {
              this.hideCrosshair();
          }
          else {
              // Get the path
              if (!snap) {
                  pos = e &&
                      (this.horiz ?
                          e.chartX - this.pos :
                          this.len - e.chartY + this.pos);
              }
              else if (defined(point)) {
                  // #3834
                  pos = pick(this.coll !== 'colorAxis' ?
                      point.crosshairPos : // 3D axis extension
                      null, this.isXAxis ?
                      point.plotX :
                      this.len - point.plotY);
              }
              if (defined(pos)) {
                  path = this.getPlotLinePath({
                      // value, only used on radial
                      value: point && (this.isXAxis ?
                          point.x :
                          pick(point.stackY, point.y)),
                      translatedValue: pos
                  }) || null; // #3189
              }
              if (!defined(path)) {
                  this.hideCrosshair();
                  return;
              }
              categorized = this.categories && !this.isRadial;
              // Draw the cross
              if (!graphic) {
                  this.cross = graphic = this.chart.renderer
                      .path()
                      .addClass('highcharts-crosshair highcharts-crosshair-' +
                      (categorized ? 'category ' : 'thin ') +
                      options.className)
                      .attr({
                      zIndex: pick(options.zIndex, 2)
                  })
                      .add();
                  // Presentational attributes
                  if (!this.chart.styledMode) {
                      graphic.attr({
                          stroke: options.color ||
                              (categorized ?
                                  color('#ccd6eb')
                                      .setOpacity(0.25).get() :
                                  '#cccccc'),
                          'stroke-width': pick(options.width, 1)
                      }).css({
                          'pointer-events': 'none'
                      });
                      if (options.dashStyle) {
                          graphic.attr({
                              dashstyle: options.dashStyle
                          });
                      }
                  }
              }
              graphic.show().attr({
                  d: path
              });
              if (categorized && !options.width) {
                  graphic.attr({
                      'stroke-width': this.transA
                  });
              }
              this.cross.e = e;
          }
          fireEvent(this, 'afterDrawCrosshair', { e: e, point: point });
      },
      /**
       * Hide the crosshair if visible.
       *
       * @function Highcharts.Axis#hideCrosshair
       *
       * @return {void}
       */
      hideCrosshair: function () {
          if (this.cross) {
              this.cross.hide();
          }
          fireEvent(this, 'afterHideCrosshair');
      }
  }); // end Axis
  H.Axis = Axis;
  export default Axis;
  