text: /* *
   * Vector plot series module
   *
   * (c) 2010-2019 Torstein Honsi
   *
   * License: www.highcharts.com/license
   */
  
  'use strict';
  
  import H from '../parts/Globals.js';
  
  var seriesType = H.seriesType;
  
  /**
   * The vector series class.
   *
   * @private
   * @class
   * @name Highcharts.seriesTypes.vector
   *
   * @augments Highcharts.seriesTypes.scatter
   */
  seriesType('vector', 'scatter'
  
      /**
       * A vector plot is a type of cartesian chart where each point has an X and
       * Y position, a length and a direction. Vectors are drawn as arrows.
       *
       * @sample {highcharts|highstock} highcharts/demo/vector-plot/
       *         Vector pot
       *
       * @since        6.0.0
       * @extends      plotOptions.scatter
       * @excluding    boostThreshold, marker, connectEnds, connectNulls,
       *               cropThreshold, dashStyle, gapSize, gapUnit, dataGrouping,
       *               linecap, shadow, stacking, step, jitter
       * @product      highcharts highstock
       * @optionparent plotOptions.vector
       */
      , {
  
          /**
           * The line width for each vector arrow.
           */
          lineWidth: 2,
  
          /**
           * @ignore
           */
          marker: null,
  
          /**
           * What part of the vector it should be rotated around. Can be one of
           * `start`, `center` and `end`. When `start`, the vectors will start
           * from the given [x, y] position, and when `end` the vectors will end
           * in the [x, y] position.
           *
           * @sample highcharts/plotoptions/vector-rotationorigin-start/
           *         Rotate from start
           *
           * @validvalue ["start", "center", "end"]
           */
          rotationOrigin: 'center',
  
          states: {
  
              hover: {
  
                  /**
                   * Additonal line width for the vector errors when they are
                   * hovered.
                   */
                  lineWidthPlus: 1
              }
          },
  
          tooltip: {
  
              /**
               * @default [{point.x}, {point.y}] Length: {point.length} Direction: {point.direction}°
               */
              pointFormat: '<b>[{point.x}, {point.y}]</b><br/>Length: <b>{point.length}</b><br/>Direction: <b>{point.direction}\u00B0</b><br/>'
          },
  
          /**
           * Maximum length of the arrows in the vector plot. The individual arrow
           * length is computed between 0 and this value.
           */
          vectorLength: 20
  
      }, {
  
          pointArrayMap: ['y', 'length', 'direction'],
          parallelArrays: ['x', 'y', 'length', 'direction'],
  
          /**
           * Get presentational attributes.
           *
           * @private
           * @function Highcharts.seriesTypes.vector#pointAttribs
           *
           * @param {Highcharts.Point} point
           *
           * @param {string} state
           *
           * @return {*}
           */
          pointAttribs: function (point, state) {
              var options = this.options,
                  stroke = point.color || this.color,
                  strokeWidth = this.options.lineWidth;
  
              if (state) {
                  stroke = options.states[state].color || stroke;
                  strokeWidth =
                  (options.states[state].lineWidth || strokeWidth) +
                  (options.states[state].lineWidthPlus || 0);
              }
  
              return {
                  'stroke': stroke,
                  'stroke-width': strokeWidth
              };
          },
  
          /**
           * @ignore
           * @deprecated
           * @function Highcharts.seriesTypes.vector#markerAttribs
           */
          markerAttribs: H.noop,
  
          /**
           * @ignore
           * @deprecated
           * @function Highcharts.seriesTypes.vector#getSymbol
           */
          getSymbol: H.noop,
  
          /**
           * Create a single arrow. It is later rotated around the zero
           * centerpoint.
           *
           * @private
           * @function Highcharts.seriesTypes.vector#arrow
           *
           * @param {Highcharts.Point} point
           *
           * @return {Highcharts.SVGPathArray}
           */
          arrow: function (point) {
              var path,
                  fraction = point.length / this.lengthMax,
                  u = fraction * this.options.vectorLength / 20,
                  o = {
                      start: 10 * u,
                      center: 0,
                      end: -10 * u
                  }[this.options.rotationOrigin] || 0;
  
              // The stem and the arrow head. Draw the arrow first with rotation
              // 0, which is the arrow pointing down (vector from north to south).
              path = [
                  'M', 0, 7 * u + o, // base of arrow
                  'L', -1.5 * u, 7 * u + o,
                  0, 10 * u + o,
                  1.5 * u, 7 * u + o,
                  0, 7 * u + o,
                  0, -10 * u + o// top
              ];
  
              return path;
          },
  
          /**
           * @private
           * @function Highcharts.seriesTypes.vector#translate
           */
          translate: function () {
              H.Series.prototype.translate.call(this);
  
              this.lengthMax = H.arrayMax(this.lengthData);
          },
  
          /**
           * @private
           * @function Highcharts.seriesTypes.vector#drawPoints
           */
          drawPoints: function () {
  
              var chart = this.chart;
  
              this.points.forEach(function (point) {
                  var plotX = point.plotX,
                      plotY = point.plotY;
  
                  if (
                      this.options.clip === false ||
                      chart.isInsidePlot(plotX, plotY, chart.inverted)
                  ) {
  
                      if (!point.graphic) {
                          point.graphic = this.chart.renderer
                              .path()
                              .add(this.markerGroup);
                      }
                      point.graphic
                          .attr({
                              d: this.arrow(point),
                              translateX: plotX,
                              translateY: plotY,
                              rotation: point.direction
                          })
                          .attr(this.pointAttribs(point));
  
                  } else if (point.graphic) {
                      point.graphic = point.graphic.destroy();
                  }
  
              }, this);
          },
  
          /**
           * @ignore
           * @deprecated
           * @function Highcharts.seriesTypes.vector#drawGraph
           */
          drawGraph: H.noop,
  
          /*
          drawLegendSymbol: function (legend, item) {
              var options = legend.options,
                  symbolHeight = legend.symbolHeight,
                  square = options.squareSymbol,
                  symbolWidth = square ? symbolHeight : legend.symbolWidth,
                  path = this.arrow.call({
                      lengthMax: 1,
                      options: {
                          vectorLength: symbolWidth
                      }
                  }, {
                      length: 1
                  });
  
              item.legendLine = this.chart.renderer.path(path)
              .addClass('highcharts-point')
              .attr({
                  zIndex: 3,
                  translateY: symbolWidth / 2,
                  rotation: 270,
                  'stroke-width': 1,
                  'stroke': 'black'
              }).add(item.legendGroup);
  
          },
          */
  
          /**
           * Fade in the arrows on initializing series.
           *
           * @private
           * @function Highcharts.seriesTypes.vector#animate
           *
           * @param {boolean} [init]
           */
          animate: function (init) {
              if (init) {
                  this.markerGroup.attr({
                      opacity: 0.01
                  });
              } else {
                  this.markerGroup.animate({
                      opacity: 1
                  }, H.animObject(this.options.animation));
  
                  this.animate = null;
              }
          }
      });
  
  
  /**
   * A `vector` series. If the [type](#series.vector.type) option is not
   * specified, it is inherited from [chart.type](#chart.type).
   *
   * @extends   series,plotOptions.vector
   * @excluding dataParser, dataURL
   * @product   highcharts highstock
   * @apioption series.vector
   */
  
  /**
   * An array of data points for the series. For the `vector` series type,
   * points can be given in the following ways:
   *
   * 1. An array of arrays with 4 values. In this case, the values correspond to
   *    to `x,y,length,direction`. If the first value is a string, it is applied
   *    as the name of the point, and the `x` value is inferred.
   *    ```js
   *    data: [
   *        [0, 0, 10, 90],
   *        [0, 1, 5, 180],
   *        [1, 1, 2, 270]
   *    ]
   *    ```
   *
   * 2. An array of objects with named values. The following snippet shows only a
   *    few settings, see the complete options set below. If the total number of
   *    data points exceeds the series'
   *    [turboThreshold](#series.area.turboThreshold), this option is not
   *    available.
   *    ```js
   *    data: [{
   *        x: 0,
   *        y: 0,
   *        name: "Point2",
   *        length: 10,
   *        direction: 90
   *    }, {
   *        x: 1,
   *        y: 1,
   *        name: "Point1",
   *        direction: 270
   *    }]
   *    ```
   *
   * @sample {highcharts} highcharts/series/data-array-of-arrays/
   *         Arrays of numeric x and y
   * @sample {highcharts} highcharts/series/data-array-of-arrays-datetime/
   *         Arrays of datetime x and y
   * @sample {highcharts} highcharts/series/data-array-of-name-value/
   *         Arrays of point.name and y
   * @sample {highcharts} highcharts/series/data-array-of-objects/
   *         Config objects
   *
   * @type      {Array<Array<(number|string),number,number,number>|*>}
   * @extends   series.line.data
   * @product   highcharts highstock
   * @apioption series.vector.data
   */
  
  /**
   * The length of the vector. The rendered length will relate to the
   * `vectorLength` setting.
   *
   * @type      {number}
   * @product   highcharts highstock
   * @apioption series.vector.data.length
   */
  
  /**
   * The vector direction in degrees, where 0 is north (pointing towards south).
   *
   * @type      {number}
   * @product   highcharts highstock
   * @apioption series.vector.data.direction
   */
  