/* *
 *
 *  (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';
import U from './Utilities.js';
var clamp = U.clamp, defined = U.defined, isNumber = U.isNumber, pick = U.pick, relativeLength = U.relativeLength, setAnimation = U.setAnimation;
import './ColumnSeries.js';
import '../mixins/centered-series.js';
import './Legend.js';
import './Options.js';
import './Point.js';
import './Series.js';
var addEvent = H.addEvent, CenteredSeriesMixin = H.CenteredSeriesMixin, getStartAndEndRadians = CenteredSeriesMixin.getStartAndEndRadians, LegendSymbolMixin = H.LegendSymbolMixin, merge = H.merge, noop = H.noop, Point = H.Point, Series = H.Series, seriesType = H.seriesType, seriesTypes = H.seriesTypes, fireEvent = H.fireEvent;
/**
 * Pie series type.
 *
 * @private
 * @class
 * @name Highcharts.seriesTypes.pie
 *
 * @augments Highcharts.Series
 */
seriesType('pie', 'line', 
/**
 * A pie chart is a circular graphic which is divided into slices to
 * illustrate numerical proportion.
 *
 * @sample highcharts/demo/pie-basic/
 *         Pie chart
 *
 * @extends      plotOptions.line
 * @excluding    animationLimit, boostThreshold, connectEnds, connectNulls,
 *               cropThreshold, dashStyle, dataSorting, dragDrop,
 *               findNearestPointBy, getExtremesFromAll, label, lineWidth,
 *               marker, negativeColor, pointInterval, pointIntervalUnit,
 *               pointPlacement, pointStart, softThreshold, stacking, step,
 *               threshold, turboThreshold, zoneAxis, zones
 * @product      highcharts
 * @optionparent plotOptions.pie
 */
{
    /**
     * @excluding legendItemClick
     * @apioption plotOptions.pie.events
     */
    /**
     * Fires when the checkbox next to the point name in the legend is
     * clicked. One parameter, event, is passed to the function. The state
     * of the checkbox is found by event.checked. The checked item is found
     * by event.item. Return false to prevent the default action which is to
     * toggle the select state of the series.
     *
     * @sample {highcharts} highcharts/plotoptions/series-events-checkboxclick/
     *         Alert checkbox status
     *
     * @type      {Function}
     * @since     1.2.0
     * @product   highcharts
     * @context   Highcharts.Point
     * @apioption plotOptions.pie.events.checkboxClick
     */
    /**
     * Fires when the legend item belonging to the pie point (slice) is
     * clicked. The `this` keyword refers to the point itself. One
     * parameter, `event`, is passed to the function, containing common
     * event information. The default action is to toggle the visibility of
     * the point. This can be prevented by calling `event.preventDefault()`.
     *
     * @sample {highcharts} highcharts/plotoptions/pie-point-events-legenditemclick/
     *         Confirm toggle visibility
     *
     * @type      {Highcharts.PointLegendItemClickCallbackFunction}
     * @since     1.2.0
     * @product   highcharts
     * @apioption plotOptions.pie.point.events.legendItemClick
     */
    /**
     * The center of the pie chart relative to the plot area. Can be
     * percentages or pixel values. The default behaviour (as of 3.0) is to
     * center the pie so that all slices and data labels are within the plot
     * area. As a consequence, the pie may actually jump around in a chart
     * with dynamic values, as the data labels move. In that case, the
     * center should be explicitly set, for example to `["50%", "50%"]`.
     *
     * @sample {highcharts} highcharts/plotoptions/pie-center/
     *         Centered at 100, 100
     *
     * @type    {Array<(number|string|null),(number|string|null)>}
     * @default [null, null]
     * @product highcharts
     *
     * @private
     */
    center: [null, null],
    /**
     * The color of the pie series. A pie series is represented as an empty
     * circle if the total sum of its values is 0. Use this property to
     * define the color of its border.
     *
     * In styled mode, the color can be defined by the
     * [colorIndex](#plotOptions.series.colorIndex) option. Also, the series
     * color can be set with the `.highcharts-series`,
     * `.highcharts-color-{n}`, `.highcharts-{type}-series` or
     * `.highcharts-series-{n}` class, or individual classes given by the
     * `className` option.
     *
     * @sample {highcharts} highcharts/plotoptions/pie-emptyseries/
     *         Empty pie series
     *
     * @type      {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
     * @default   #cccccc
     * @apioption plotOptions.pie.color
     */
    /**
     * @product highcharts
     *
     * @private
     */
    clip: false,
    /**
     * @ignore-option
     *
     * @private
     */
    colorByPoint: true,
    /**
     * A series specific or series type specific color set to use instead
     * of the global [colors](#colors).
     *
     * @sample {highcharts} highcharts/demo/pie-monochrome/
     *         Set default colors for all pies
     *
     * @type      {Array<Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject>}
     * @since     3.0
     * @product   highcharts
     * @apioption plotOptions.pie.colors
     */
    /**
     * @declare   Highcharts.SeriesPieDataLabelsOptionsObject
     * @extends   plotOptions.series.dataLabels
     * @excluding align, allowOverlap, staggerLines, step
     * @private
     */
    dataLabels: {
        /**
         * Alignment method for data labels. Possible values are:
         *
         * - `toPlotEdges`: Each label touches the nearest vertical edge of
         *   the plot area.
         *
         * - `connectors`: Connectors have the same x position and the
         *   widest label of each half (left & right) touches the nearest
         *   vertical edge of the plot area.
         *
         * @sample {highcharts} highcharts/plotoptions/pie-datalabels-alignto-connectors/
         *         alignTo: connectors
         * @sample {highcharts} highcharts/plotoptions/pie-datalabels-alignto-plotedges/
         *         alignTo: plotEdges
         *
         * @type      {string}
         * @since     7.0.0
         * @product   highcharts
         * @apioption plotOptions.pie.dataLabels.alignTo
         */
        allowOverlap: true,
        /**
         * The color of the line connecting the data label to the pie slice.
         * The default color is the same as the point's color.
         *
         * In styled mode, the connector stroke is given in the
         * `.highcharts-data-label-connector` class.
         *
         * @sample {highcharts} highcharts/plotoptions/pie-datalabels-connectorcolor/
         *         Blue connectors
         * @sample {highcharts} highcharts/css/pie-point/
         *         Styled connectors
         *
         * @type      {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
         * @since     2.1
         * @product   highcharts
         * @apioption plotOptions.pie.dataLabels.connectorColor
         */
        /**
         * The distance from the data label to the connector. Note that
         * data labels also have a default `padding`, so in order for the
         * connector to touch the text, the `padding` must also be 0.
         *
         * @sample {highcharts} highcharts/plotoptions/pie-datalabels-connectorpadding/
         *         No padding
         *
         * @since   2.1
         * @product highcharts
         */
        connectorPadding: 5,
        /**
         * Specifies the method that is used to generate the connector path.
         * Highcharts provides 3 built-in connector shapes: `'fixedOffset'`
         * (default), `'straight'` and `'crookedLine'`. Using
         * `'crookedLine'` has the most sense (in most of the cases) when
         * `'alignTo'` is set.
         *
         * Users can provide their own method by passing a function instead
         * of a String. 3 arguments are passed to the callback:
         *
         * - Object that holds the information about the coordinates of the
         *   label (`x` & `y` properties) and how the label is located in
         *   relation to the pie (`alignment` property). `alignment` can by
         *   one of the following:
         *   `'left'` (pie on the left side of the data label),
         *   `'right'` (pie on the right side of the data label) or
         *   `'center'` (data label overlaps the pie).
         *
         * - Object that holds the information about the position of the
         *   connector. Its `touchingSliceAt`  porperty tells the position
         *   of the place where the connector touches the slice.
         *
         * - Data label options
         *
         * The function has to return an SVG path definition in array form
         * (see the example).
         *
         * @sample {highcharts} highcharts/plotoptions/pie-datalabels-connectorshape-string/
         *         connectorShape is a String
         * @sample {highcharts} highcharts/plotoptions/pie-datalabels-connectorshape-function/
         *         connectorShape is a function
         *
         * @type    {string|Function}
         * @since   7.0.0
         * @product highcharts
         */
        connectorShape: 'fixedOffset',
        /**
         * The width of the line connecting the data label to the pie slice.
         *
         * In styled mode, the connector stroke width is given in the
         * `.highcharts-data-label-connector` class.
         *
         * @sample {highcharts} highcharts/plotoptions/pie-datalabels-connectorwidth-disabled/
         *         Disable the connector
         * @sample {highcharts} highcharts/css/pie-point/
         *         Styled connectors
         *
         * @type      {number}
         * @default   1
         * @since     2.1
         * @product   highcharts
         * @apioption plotOptions.pie.dataLabels.connectorWidth
         */
        /**
         * Works only if `connectorShape` is `'crookedLine'`. It defines how
         * far from the vertical plot edge the coonnector path should be
         * crooked.
         *
         * @sample {highcharts} highcharts/plotoptions/pie-datalabels-crookdistance/
         *         crookDistance set to 90%
         *
         * @since   7.0.0
         * @product highcharts
         */
        crookDistance: '70%',
        /**
         * The distance of the data label from the pie's edge. Negative
         * numbers put the data label on top of the pie slices. Can also be
         * defined as a percentage of pie's radius. Connectors are only
         * shown for data labels outside the pie.
         *
         * @sample {highcharts} highcharts/plotoptions/pie-datalabels-distance/
         *         Data labels on top of the pie
         *
         * @since   2.1
         * @product highcharts
         */
        distance: 30,
        enabled: true,
        formatter: function () {
            return this.point.isNull ? void 0 : this.point.name;
        },
        /**
         * Whether to render the connector as a soft arc or a line with
         * sharp break. Works only if `connectorShape` equals to
         * `fixedOffset`.
         *
         * @sample {highcharts} highcharts/plotoptions/pie-datalabels-softconnector-true/
         *         Soft
         * @sample {highcharts} highcharts/plotoptions/pie-datalabels-softconnector-false/
         *         Non soft
         *
         * @since   2.1.7
         * @product highcharts
         */
        softConnector: true,
        /**
         * @sample {highcharts} highcharts/plotOptions/pie-datalabels-overflow
         *         Long labels truncated with an ellipsis
         * @sample {highcharts} highcharts/plotOptions/pie-datalabels-overflow-wrap
         *         Long labels are wrapped
         *
         * @type      {Highcharts.CSSObject}
         * @apioption plotOptions.pie.dataLabels.style
         */
        x: 0
    },
    /**
     * If the total sum of the pie's values is 0, the series is represented
     * as an empty circle . The `fillColor` option defines the color of that
     * circle. Use [pie.borderWidth](#plotOptions.pie.borderWidth) to set
     * the border thickness.
     *
     * @sample {highcharts} highcharts/plotoptions/pie-emptyseries/
     *         Empty pie series
     *
     * @type {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
     * @private
     */
    fillColor: void 0,
    /**
     * The end angle of the pie in degrees where 0 is top and 90 is right.
     * Defaults to `startAngle` plus 360.
     *
     * @sample {highcharts} highcharts/demo/pie-semi-circle/
     *         Semi-circle donut
     *
     * @type      {number}
     * @since     1.3.6
     * @product   highcharts
     * @apioption plotOptions.pie.endAngle
     */
    /**
     * Equivalent to [chart.ignoreHiddenSeries](#chart.ignoreHiddenSeries),
     * this option tells whether the series shall be redrawn as if the
     * hidden point were `null`.
     *
     * The default value changed from `false` to `true` with Highcharts
     * 3.0.
     *
     * @sample {highcharts} highcharts/plotoptions/pie-ignorehiddenpoint/
     *         True, the hiddden point is ignored
     *
     * @since   2.3.0
     * @product highcharts
     *
     * @private
     */
    ignoreHiddenPoint: true,
    /**
     * @ignore-option
     *
     * @private
     */
    inactiveOtherPoints: true,
    /**
     * The size of the inner diameter for the pie. A size greater than 0
     * renders a donut chart. Can be a percentage or pixel value.
     * Percentages are relative to the pie size. Pixel values are given as
     * integers.
     *
     *
     * Note: in Highcharts < 4.1.2, the percentage was relative to the plot
     * area, not the pie size.
     *
     * @sample {highcharts} highcharts/plotoptions/pie-innersize-80px/
     *         80px inner size
     * @sample {highcharts} highcharts/plotoptions/pie-innersize-50percent/
     *         50% of the plot area
     * @sample {highcharts} highcharts/demo/3d-pie-donut/
     *         3D donut
     *
     * @type      {number|string}
     * @default   0
     * @since     2.0
     * @product   highcharts
     * @apioption plotOptions.pie.innerSize
     */
    /**
     * @ignore-option
     *
     * @private
     */
    legendType: 'point',
    /**
     * @ignore-option
     *
     * @private
     */
    marker: null,
    /**
     * The minimum size for a pie in response to auto margins. The pie will
     * try to shrink to make room for data labels in side the plot area,
     *  but only to this size.
     *
     * @type      {number|string}
     * @default   80
     * @since     3.0
     * @product   highcharts
     * @apioption plotOptions.pie.minSize
     */
    /**
     * The diameter of the pie relative to the plot area. Can be a
     * percentage or pixel value. Pixel values are given as integers. The
     * default behaviour (as of 3.0) is to scale to the plot area and give
     * room for data labels within the plot area.
     * [slicedOffset](#plotOptions.pie.slicedOffset) is also included in the
     * default size calculation. As a consequence, the size of the pie may
     * vary when points are updated and data labels more around. In that
     * case it is best to set a fixed value, for example `"75%"`.
     *
     * @sample {highcharts} highcharts/plotoptions/pie-size/
     *         Smaller pie
     *
     * @type    {number|string|null}
     * @product highcharts
     *
     * @private
     */
    size: null,
    /**
     * Whether to display this particular series or series type in the
     * legend. Since 2.1, pies are not shown in the legend by default.
     *
     * @sample {highcharts} highcharts/plotoptions/series-showinlegend/
     *         One series in the legend, one hidden
     *
     * @product highcharts
     *
     * @private
     */
    showInLegend: false,
    /**
     * If a point is sliced, moved out from the center, how many pixels
     * should it be moved?.
     *
     * @sample {highcharts} highcharts/plotoptions/pie-slicedoffset-20/
     *         20px offset
     *
     * @product highcharts
     *
     * @private
     */
    slicedOffset: 10,
    /**
     * The start angle of the pie slices in degrees where 0 is top and 90
     * right.
     *
     * @sample {highcharts} highcharts/plotoptions/pie-startangle-90/
     *         Start from right
     *
     * @type      {number}
     * @default   0
     * @since     2.3.4
     * @product   highcharts
     * @apioption plotOptions.pie.startAngle
     */
    /**
     * Sticky tracking of mouse events. When true, the `mouseOut` event
     * on a series isn't triggered until the mouse moves over another
     * series, or out of the plot area. When false, the `mouseOut` event on
     * a series is triggered when the mouse leaves the area around the
     * series'  graph or markers. This also implies the tooltip. When
     * `stickyTracking` is false and `tooltip.shared` is false, the tooltip
     * will be hidden when moving the mouse between series.
     *
     * @product highcharts
     *
     * @private
     */
    stickyTracking: false,
    tooltip: {
        followPointer: true
    },
    /**
     * The color of the border surrounding each slice. When `null`, the
     * border takes the same color as the slice fill. This can be used
     * together with a `borderWidth` to fill drawing gaps created by
     * antialiazing artefacts in borderless pies.
     *
     * In styled mode, the border stroke is given in the `.highcharts-point`
     * class.
     *
     * @sample {highcharts} highcharts/plotoptions/pie-bordercolor-black/
     *         Black border
     *
     * @type    {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
     * @default #ffffff
     * @product highcharts
     *
     * @private
     */
    borderColor: '#ffffff',
    /**
     * The width of the border surrounding each slice.
     *
     * When setting the border width to 0, there may be small gaps between
     * the slices due to SVG antialiasing artefacts. To work around this,
     * keep the border width at 0.5 or 1, but set the `borderColor` to
     * `null` instead.
     *
     * In styled mode, the border stroke width is given in the
     * `.highcharts-point` class.
     *
     * @sample {highcharts} highcharts/plotoptions/pie-borderwidth/
     *         3px border
     *
     * @product highcharts
     *
     * @private
     */
    borderWidth: 1,
    /**
     * @ignore-options
     * @private
     */
    lineWidth: void 0,
    states: {
        /**
         * @extends   plotOptions.series.states.hover
         * @excluding marker, lineWidth, lineWidthPlus
         * @product   highcharts
         */
        hover: {
            /**
             * How much to brighten the point on interaction. Requires the
             * main color to be defined in hex or rgb(a) format.
             *
             * In styled mode, the hover brightness is by default replaced
             * by a fill-opacity given in the `.highcharts-point-hover`
             * class.
             *
             * @sample {highcharts} highcharts/plotoptions/pie-states-hover-brightness/
             *         Brightened by 0.5
             *
             * @product highcharts
             */
            brightness: 0.1
        }
    }
}, 
/* eslint-disable valid-jsdoc */
/**
 * @lends seriesTypes.pie.prototype
 */
{
    isCartesian: false,
    requireSorting: false,
    directTouch: true,
    noSharedTooltip: true,
    trackerGroups: ['group', 'dataLabelsGroup'],
    axisTypes: [],
    pointAttribs: seriesTypes.column.prototype.pointAttribs,
    /**
     * Animate the pies in
     *
     * @private
     * @function Highcharts.seriesTypes.pie#animate
     *
     * @param {boolean} [init=false]
     */
    animate: function (init) {
        var series = this, points = series.points, startAngleRad = series.startAngleRad;
        if (!init) {
            points.forEach(function (point) {
                var graphic = point.graphic, args = point.shapeArgs;
                if (graphic && args) {
                    // start values
                    graphic.attr({
                        // animate from inner radius (#779)
                        r: pick(point.startR, (series.center && series.center[3] / 2)),
                        start: startAngleRad,
                        end: startAngleRad
                    });
                    // animate
                    graphic.animate({
                        r: args.r,
                        start: args.start,
                        end: args.end
                    }, series.options.animation);
                }
            });
            // delete this function to allow it only once
            series.animate = null;
        }
    },
    // Define hasData function for non-cartesian series.
    // Returns true if the series has points at all.
    hasData: function () {
        return !!this.processedXData.length; // != 0
    },
    /**
     * Recompute total chart sum and update percentages of points.
     *
     * @private
     * @function Highcharts.seriesTypes.pie#updateTotals
     * @return {void}
     */
    updateTotals: function () {
        var i, total = 0, points = this.points, len = points.length, point, ignoreHiddenPoint = this.options.ignoreHiddenPoint;
        // Get the total sum
        for (i = 0; i < len; i++) {
            point = points[i];
            total += (ignoreHiddenPoint && !point.visible) ?
                0 :
                point.isNull ?
                    0 :
                    point.y;
        }
        this.total = total;
        // Set each point's properties
        for (i = 0; i < len; i++) {
            point = points[i];
            point.percentage =
                (total > 0 && (point.visible || !ignoreHiddenPoint)) ?
                    point.y / total * 100 :
                    0;
            point.total = total;
        }
    },
    /**
     * Extend the generatePoints method by adding total and percentage
     * properties to each point
     *
     * @private
     * @function Highcharts.seriesTypes.pie#generatePoints
     * @return {void}
     */
    generatePoints: function () {
        Series.prototype.generatePoints.call(this);
        this.updateTotals();
    },
    /**
     * Utility for getting the x value from a given y, used for
     * anticollision logic in data labels. Added point for using specific
     * points' label distance.
     * @private
     */
    getX: function (y, left, point) {
        var center = this.center, 
        // Variable pie has individual radius
        radius = this.radii ?
            this.radii[point.index] :
            center[2] / 2, angle, x;
        angle = Math.asin(clamp((y - center[1]) / (radius + point.labelDistance), -1, 1));
        x = center[0] +
            (left ? -1 : 1) *
                (Math.cos(angle) * (radius + point.labelDistance)) +
            (point.labelDistance > 0 ?
                (left ? -1 : 1) * this.options.dataLabels.padding :
                0);
        return x;
    },
    /**
     * Do translation for pie slices
     *
     * @private
     * @function Highcharts.seriesTypes.pie#translate
     * @param {Array<number>} [positions]
     * @return {void}
     */
    translate: function (positions) {
        this.generatePoints();
        var series = this, cumulative = 0, precision = 1000, // issue #172
        options = series.options, slicedOffset = options.slicedOffset, connectorOffset = slicedOffset + (options.borderWidth || 0), finalConnectorOffset, start, end, angle, radians = getStartAndEndRadians(options.startAngle, options.endAngle), startAngleRad = series.startAngleRad = radians.start, endAngleRad = series.endAngleRad = radians.end, circ = endAngleRad - startAngleRad, // 2 * Math.PI,
        points = series.points, 
        // the x component of the radius vector for a given point
        radiusX, radiusY, labelDistance = options.dataLabels.distance, ignoreHiddenPoint = options.ignoreHiddenPoint, i, len = points.length, point;
        // Get positions - either an integer or a percentage string must be
        // given. If positions are passed as a parameter, we're in a
        // recursive loop for adjusting space for data labels.
        if (!positions) {
            series.center = positions = series.getCenter();
        }
        // Calculate the geometry for each point
        for (i = 0; i < len; i++) {
            point = points[i];
            // set start and end angle
            start = startAngleRad + (cumulative * circ);
            if (!ignoreHiddenPoint || point.visible) {
                cumulative += point.percentage / 100;
            }
            end = startAngleRad + (cumulative * circ);
            // set the shape
            point.shapeType = 'arc';
            point.shapeArgs = {
                x: positions[0],
                y: positions[1],
                r: positions[2] / 2,
                innerR: positions[3] / 2,
                start: Math.round(start * precision) / precision,
                end: Math.round(end * precision) / precision
            };
            // Used for distance calculation for specific point.
            point.labelDistance = pick((point.options.dataLabels &&
                point.options.dataLabels.distance), labelDistance);
            // Compute point.labelDistance if it's defined as percentage
            // of slice radius (#8854)
            point.labelDistance = relativeLength(point.labelDistance, point.shapeArgs.r);
            // Saved for later dataLabels distance calculation.
            series.maxLabelDistance = Math.max(series.maxLabelDistance || 0, point.labelDistance);
            // The angle must stay within -90 and 270 (#2645)
            angle = (end + start) / 2;
            if (angle > 1.5 * Math.PI) {
                angle -= 2 * Math.PI;
            }
            else if (angle < -Math.PI / 2) {
                angle += 2 * Math.PI;
            }
            // Center for the sliced out slice
            point.slicedTranslation = {
                translateX: Math.round(Math.cos(angle) * slicedOffset),
                translateY: Math.round(Math.sin(angle) * slicedOffset)
            };
            // set the anchor point for tooltips
            radiusX = Math.cos(angle) * positions[2] / 2;
            radiusY = Math.sin(angle) * positions[2] / 2;
            point.tooltipPos = [
                positions[0] + radiusX * 0.7,
                positions[1] + radiusY * 0.7
            ];
            point.half = angle < -Math.PI / 2 || angle > Math.PI / 2 ?
                1 :
                0;
            point.angle = angle;
            // Set the anchor point for data labels. Use point.labelDistance
            // instead of labelDistance // #1174
            // finalConnectorOffset - not override connectorOffset value.
            finalConnectorOffset = Math.min(connectorOffset, point.labelDistance / 5); // #1678
            point.labelPosition = {
                natural: {
                    // initial position of the data label - it's utilized for
                    // finding the final position for the label
                    x: positions[0] + radiusX + Math.cos(angle) *
                        point.labelDistance,
                    y: positions[1] + radiusY + Math.sin(angle) *
                        point.labelDistance
                },
                'final': {
                // used for generating connector path -
                // initialized later in drawDataLabels function
                // x: undefined,
                // y: undefined
                },
                // left - pie on the left side of the data label
                // right - pie on the right side of the data label
                // center - data label overlaps the pie
                alignment: point.labelDistance < 0 ?
                    'center' : point.half ? 'right' : 'left',
                connectorPosition: {
                    breakAt: {
                        x: positions[0] + radiusX + Math.cos(angle) *
                            finalConnectorOffset,
                        y: positions[1] + radiusY + Math.sin(angle) *
                            finalConnectorOffset
                    },
                    touchingSliceAt: {
                        x: positions[0] + radiusX,
                        y: positions[1] + radiusY
                    }
                }
            };
        }
        fireEvent(series, 'afterTranslate');
    },
    /**
     * Called internally to draw auxiliary graph in pie-like series in
     * situtation when the default graph is not sufficient enough to present
     * the data well. Auxiliary graph is saved in the same object as
     * regular graph.
     *
     * @private
     * @function Highcharts.seriesTypes.pie#drawEmpty
     */
    drawEmpty: function () {
        var centerX, centerY, options = this.options;
        // Draw auxiliary graph if there're no visible points.
        if (this.total === 0) {
            centerX = this.center[0];
            centerY = this.center[1];
            if (!this.graph) { // Auxiliary graph doesn't exist yet.
                this.graph = this.chart.renderer.circle(centerX, centerY, 0)
                    .addClass('highcharts-graph')
                    .add(this.group);
            }
            this.graph.animate({
                'stroke-width': options.borderWidth,
                cx: centerX,
                cy: centerY,
                r: this.center[2] / 2,
                fill: options.fillColor || 'none',
                stroke: options.color ||
                    '#cccccc'
            });
        }
        else if (this.graph) { // Destroy the graph object.
            this.graph = this.graph.destroy();
        }
    },
    /**
     * Draw the data points
     *
     * @private
     * @function Highcharts.seriesTypes.pie#drawPoints
     * @return {void}
     */
    redrawPoints: function () {
        var series = this, chart = series.chart, renderer = chart.renderer, groupTranslation, graphic, pointAttr, shapeArgs, shadow = series.options.shadow;
        this.drawEmpty();
        if (shadow && !series.shadowGroup && !chart.styledMode) {
            series.shadowGroup = renderer.g('shadow')
                .attr({ zIndex: -1 })
                .add(series.group);
        }
        // draw the slices
        series.points.forEach(function (point) {
            var animateTo = {};
            graphic = point.graphic;
            if (!point.isNull && graphic) {
                shapeArgs = point.shapeArgs;
                // If the point is sliced, use special translation, else use
                // plot area translation
                groupTranslation = point.getTranslate();
                if (!chart.styledMode) {
                    // Put the shadow behind all points
                    var shadowGroup = point.shadowGroup;
                    if (shadow && !shadowGroup) {
                        shadowGroup = point.shadowGroup = renderer
                            .g('shadow')
                            .add(series.shadowGroup);
                    }
                    if (shadowGroup) {
                        shadowGroup.attr(groupTranslation);
                    }
                    pointAttr = series.pointAttribs(point, (point.selected && 'select'));
                }
                // Draw the slice
                if (!point.delayedRendering) {
                    graphic
                        .setRadialReference(series.center);
                    if (!chart.styledMode) {
                        merge(true, animateTo, pointAttr);
                    }
                    merge(true, animateTo, shapeArgs, groupTranslation);
                    graphic.animate(animateTo);
                }
                else {
                    graphic
                        .setRadialReference(series.center)
                        .attr(shapeArgs)
                        .attr(groupTranslation);
                    if (!chart.styledMode) {
                        graphic
                            .attr(pointAttr)
                            .attr({ 'stroke-linejoin': 'round' })
                            .shadow(shadow, shadowGroup);
                    }
                    point.delayedRendering = false;
                }
                graphic.attr({
                    visibility: point.visible ? 'inherit' : 'hidden'
                });
                graphic.addClass(point.getClassName());
            }
            else if (graphic) {
                point.graphic = graphic.destroy();
            }
        });
    },
    /**
     * Slices in pie chart are initialized in DOM, but it's shapes and
     * animations are normally run in `drawPoints()`.
     * @private
     */
    drawPoints: function () {
        var renderer = this.chart.renderer;
        this.points.forEach(function (point) {
            if (!point.graphic) {
                point.graphic = renderer[point.shapeType](point.shapeArgs)
                    .add(point.series.group);
                point.delayedRendering = true;
            }
        });
    },
    /**
     * @private
     * @deprecated
     * @function Highcharts.seriesTypes.pie#searchPoint
     */
    searchPoint: noop,
    /**
     * Utility for sorting data labels
     *
     * @private
     * @function Highcharts.seriesTypes.pie#sortByAngle
     * @param {Array<Highcharts.Point>} points
     * @param {number} sign
     * @return {void}
     */
    sortByAngle: function (points, sign) {
        points.sort(function (a, b) {
            return ((typeof a.angle !== 'undefined') &&
                (b.angle - a.angle) * sign);
        });
    },
    /**
     * Use a simple symbol from LegendSymbolMixin.
     *
     * @private
     * @borrows Highcharts.LegendSymbolMixin.drawRectangle as Highcharts.seriesTypes.pie#drawLegendSymbol
     */
    drawLegendSymbol: LegendSymbolMixin.drawRectangle,
    /**
     * Use the getCenter method from drawLegendSymbol.
     *
     * @private
     * @borrows Highcharts.CenteredSeriesMixin.getCenter as Highcharts.seriesTypes.pie#getCenter
     */
    getCenter: CenteredSeriesMixin.getCenter,
    /**
     * Pies don't have point marker symbols.
     *
     * @deprecated
     * @private
     * @function Highcharts.seriesTypes.pie#getSymbol
     */
    getSymbol: noop,
    /**
     * @private
     * @type {null}
     */
    drawGraph: null
}, 
/**
 * @lends seriesTypes.pie.prototype.pointClass.prototype
 */
{
    /**
     * Initialize the pie slice
     *
     * @private
     * @function Highcharts.seriesTypes.pie#pointClass#init
     * @return {Highcharts.Point}
     */
    init: function () {
        Point.prototype.init.apply(this, arguments);
        var point = this, toggleSlice;
        point.name = pick(point.name, 'Slice');
        // add event listener for select
        toggleSlice = function (e) {
            point.slice(e.type === 'select');
        };
        addEvent(point, 'select', toggleSlice);
        addEvent(point, 'unselect', toggleSlice);
        return point;
    },
    /**
     * Negative points are not valid (#1530, #3623, #5322)
     *
     * @private
     * @function Highcharts.seriesTypes.pie#pointClass#isValid
     * @return {boolean}
     */
    isValid: function () {
        return isNumber(this.y) && this.y >= 0;
    },
    /**
     * Toggle the visibility of the pie slice
     *
     * @private
     * @function Highcharts.seriesTypes.pie#pointClass#setVisible
     * @param {boolean} vis
     *        Whether to show the slice or not. If undefined, the visibility
     *        is toggled.
     * @param {boolean} [redraw=false]
     * @return {void}
     */
    setVisible: function (vis, redraw) {
        var point = this, series = point.series, chart = series.chart, ignoreHiddenPoint = series.options.ignoreHiddenPoint;
        redraw = pick(redraw, ignoreHiddenPoint);
        if (vis !== point.visible) {
            // If called without an argument, toggle visibility
            point.visible = point.options.visible = vis =
                typeof vis === 'undefined' ? !point.visible : vis;
            // update userOptions.data
            series.options.data[series.data.indexOf(point)] =
                point.options;
            // Show and hide associated elements. This is performed
            // regardless of redraw or not, because chart.redraw only
            // handles full series.
            ['graphic', 'dataLabel', 'connector', 'shadowGroup'].forEach(function (key) {
                if (point[key]) {
                    point[key][vis ? 'show' : 'hide'](true);
                }
            });
            if (point.legendItem) {
                chart.legend.colorizeItem(point, vis);
            }
            // #4170, hide halo after hiding point
            if (!vis && point.state === 'hover') {
                point.setState('');
            }
            // Handle ignore hidden slices
            if (ignoreHiddenPoint) {
                series.isDirty = true;
            }
            if (redraw) {
                chart.redraw();
            }
        }
    },
    /**
     * Set or toggle whether the slice is cut out from the pie
     *
     * @private
     * @function Highcharts.seriesTypes.pie#pointClass#slice
     * @param {boolean} sliced
     *        When undefined, the slice state is toggled.
     * @param {boolean} redraw
     *        Whether to redraw the chart. True by default.
     * @param {boolean|Highcharts.AnimationOptionsObject}
     *        Animation options.
     * @return {void}
     */
    slice: function (sliced, redraw, animation) {
        var point = this, series = point.series, chart = series.chart;
        setAnimation(animation, chart);
        // redraw is true by default
        redraw = pick(redraw, true);
        /**
         * Pie series only. Whether to display a slice offset from the
         * center.
         * @name Highcharts.Point#sliced
         * @type {boolean|undefined}
         */
        // if called without an argument, toggle
        point.sliced = point.options.sliced = sliced =
            defined(sliced) ? sliced : !point.sliced;
        // update userOptions.data
        series.options.data[series.data.indexOf(point)] =
            point.options;
        point.graphic.animate(this.getTranslate());
        if (point.shadowGroup) {
            point.shadowGroup.animate(this.getTranslate());
        }
    },
    /**
     * @private
     * @function Highcharts.seriesTypes.pie#pointClass#getTranslate
     * @return {Highcharts.TranslationAttributes}
     */
    getTranslate: function () {
        return this.sliced ? this.slicedTranslation : {
            translateX: 0,
            translateY: 0
        };
    },
    /**
     * @private
     * @function Highcharts.seriesTypes.pie#pointClass#haloPath
     * @param {number} size
     * @return {Highcharts.SVGPathArray}
     */
    haloPath: function (size) {
        var shapeArgs = this.shapeArgs;
        return this.sliced || !this.visible ?
            [] :
            this.series.chart.renderer.symbols.arc(shapeArgs.x, shapeArgs.y, shapeArgs.r + size, shapeArgs.r + size, {
                // Substract 1px to ensure the background is not bleeding
                // through between the halo and the slice (#7495).
                innerR: shapeArgs.r - 1,
                start: shapeArgs.start,
                end: shapeArgs.end
            });
    },
    connectorShapes: {
        // only one available before v7.0.0
        fixedOffset: function (labelPosition, connectorPosition, options) {
            var breakAt = connectorPosition.breakAt, touchingSliceAt = connectorPosition.touchingSliceAt, linePath = options.softConnector ? [
                'C',
                // 1st control point (of the curve)
                labelPosition.x +
                    // 5 gives the connector a little horizontal bend
                    (labelPosition.alignment === 'left' ? -5 : 5),
                labelPosition.y,
                2 * breakAt.x - touchingSliceAt.x,
                2 * breakAt.y - touchingSliceAt.y,
                breakAt.x,
                breakAt.y //
            ] : [
                'L',
                breakAt.x,
                breakAt.y
            ];
            // assemble the path
            return [
                'M',
                labelPosition.x,
                labelPosition.y
            ]
                .concat(linePath)
                .concat([
                'L',
                touchingSliceAt.x,
                touchingSliceAt.y
            ]);
        },
        straight: function (labelPosition, connectorPosition) {
            var touchingSliceAt = connectorPosition.touchingSliceAt;
            // direct line to the slice
            return [
                'M',
                labelPosition.x,
                labelPosition.y,
                'L',
                touchingSliceAt.x,
                touchingSliceAt.y
            ];
        },
        crookedLine: function (labelPosition, connectorPosition, options) {
            var touchingSliceAt = connectorPosition.touchingSliceAt, series = this.series, pieCenterX = series.center[0], plotWidth = series.chart.plotWidth, plotLeft = series.chart.plotLeft, alignment = labelPosition.alignment, radius = this.shapeArgs.r, crookDistance = relativeLength(// % to fraction
            options.crookDistance, 1), crookX = alignment === 'left' ?
                pieCenterX + radius + (plotWidth + plotLeft -
                    pieCenterX - radius) * (1 - crookDistance) :
                plotLeft + (pieCenterX - radius) * crookDistance, segmentWithCrook = [
                'L',
                crookX,
                labelPosition.y
            ];
            // crookedLine formula doesn't make sense if the path overlaps
            // the label - use straight line instead in that case
            if (alignment === 'left' ?
                (crookX > labelPosition.x || crookX < touchingSliceAt.x) :
                (crookX < labelPosition.x || crookX > touchingSliceAt.x)) {
                segmentWithCrook = []; // remove the crook
            }
            // assemble the path
            return [
                'M',
                labelPosition.x,
                labelPosition.y
            ]
                .concat(segmentWithCrook)
                .concat([
                'L',
                touchingSliceAt.x,
                touchingSliceAt.y
            ]);
        }
    },
    /**
     * Extendable method for getting the path of the connector between the
     * data label and the pie slice.
     */
    getConnectorPath: function () {
        var labelPosition = this.labelPosition, options = this.series.options.dataLabels, connectorShape = options.connectorShape, predefinedShapes = this.connectorShapes;
        // find out whether to use the predefined shape
        if (predefinedShapes[connectorShape]) {
            connectorShape = predefinedShapes[connectorShape];
        }
        return connectorShape.call(this, {
            // pass simplified label position object for user's convenience
            x: labelPosition.final.x,
            y: labelPosition.final.y,
            alignment: labelPosition.alignment
        }, labelPosition.connectorPosition, options);
    }
}
/* eslint-enable valid-jsdoc */
);
/**
 * A `pie` series. If the [type](#series.pie.type) option is not specified,
 * it is inherited from [chart.type](#chart.type).
 *
 * @extends   series,plotOptions.pie
 * @excluding dataParser, dataURL, stack, xAxis, yAxis
 * @product   highcharts
 * @apioption series.pie
 */
/**
 * An array of data points for the series. For the `pie` series type,
 * points can be given in the following ways:
 *
 * 1. An array of numerical values. In this case, the numerical values will be
 *    interpreted as `y` options. Example:
 *    ```js
 *    data: [0, 5, 3, 5]
 *    ```
 *
 * 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.pie.turboThreshold),
 *    this option is not available.
 *    ```js
 *    data: [{
 *        y: 1,
 *        name: "Point2",
 *        color: "#00FF00"
 *    }, {
 *        y: 7,
 *        name: "Point1",
 *        color: "#FF00FF"
 *    }]
 *    ```
 *
 * @sample {highcharts} highcharts/chart/reflow-true/
 *         Numerical values
 * @sample {highcharts} highcharts/series/data-array-of-arrays/
 *         Arrays of numeric x and y
 * @sample {highcharts} highcharts/series/data-array-of-arrays-datetime/
 *         Arrays of datetime x and y
 * @sample {highcharts} highcharts/series/data-array-of-name-value/
 *         Arrays of point.name and y
 * @sample {highcharts} highcharts/series/data-array-of-objects/
 *         Config objects
 *
 * @type      {Array<number|Array<string,(number|null)>|null|*>}
 * @extends   series.line.data
 * @excluding marker, x
 * @product   highcharts
 * @apioption series.pie.data
 */
/**
 * @type      {Highcharts.SeriesPieDataLabelsOptionsObject}
 * @product   highcharts
 * @apioption series.pie.data.dataLabels
 */
/**
 * The sequential index of the data point in the legend.
 *
 * @type      {number}
 * @product   highcharts
 * @apioption series.pie.data.legendIndex
 */
/**
 * Whether to display a slice offset from the center.
 *
 * @sample {highcharts} highcharts/point/sliced/
 *         One sliced point
 *
 * @type      {boolean}
 * @product   highcharts
 * @apioption series.pie.data.sliced
 */
/**
 * @excluding legendItemClick
 * @product   highcharts
 * @apioption series.pie.events
 */
''; // placeholder for transpiled doclets above
