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/* *
* (c) 2010-2019 Torstein Honsi
*
* License: www.highcharts.com/license
*/
/**
* @private
* @typedef Highcharts.RadianAngles
*
* @property {number} start
*
* @property {number} end
*/
'use strict';
import H from '../parts/Globals.js';
import '../parts/Utilities.js';
var deg2rad = H.deg2rad,
isNumber = H.isNumber,
pick = H.pick,
relativeLength = H.relativeLength;
/**
* @private
* @mixin Highcharts.CenteredSeriesMixin
*/
H.CenteredSeriesMixin = {
/**
* Get the center of the pie based on the size and center options relative
* to the plot area. Borrowed by the polar and gauge series types.
*
* @private
* @function Highcharts.CenteredSeriesMixin.getCenter
*
* @return {Array<number>}
*/
getCenter: function () {
var options = this.options,
chart = this.chart,
slicingRoom = 2 * (options.slicedOffset || 0),
handleSlicingRoom,
plotWidth = chart.plotWidth - 2 * slicingRoom,
plotHeight = chart.plotHeight - 2 * slicingRoom,
centerOption = options.center,
positions = [
pick(centerOption[0], '50%'),
pick(centerOption[1], '50%'),
options.size || '100%',
options.innerSize || 0
],
smallestSize = Math.min(plotWidth, plotHeight),
i,
value;
for (i = 0; i < 4; ++i) {
value = positions[i];
handleSlicingRoom = i < 2 || (i === 2 && /%$/.test(value));
// i == 0: centerX, relative to width
// i == 1: centerY, relative to height
// i == 2: size, relative to smallestSize
// i == 3: innerSize, relative to size
positions[i] = relativeLength(
value,
[plotWidth, plotHeight, smallestSize, positions[2]][i]
) + (handleSlicingRoom ? slicingRoom : 0);
}
// innerSize cannot be larger than size (#3632)
if (positions[3] > positions[2]) {
positions[3] = positions[2];
}
return positions;
},
/**
* getStartAndEndRadians - Calculates start and end angles in radians.
* Used in series types such as pie and sunburst.
*
* @private
* @function Highcharts.CenteredSeriesMixin.getStartAndEndRadians
*
* @param {number} start
* Start angle in degrees.
*
* @param {number} end
* Start angle in degrees.
*
* @return {Highcharts.RadianAngles}
* Returns an object containing start and end angles as radians.
*/
getStartAndEndRadians: function getStartAndEndRadians(start, end) {
var startAngle = isNumber(start) ? start : 0, // must be a number
endAngle = (
(
isNumber(end) && // must be a number
end > startAngle && // must be larger than the start angle
// difference must be less than 360 degrees
(end - startAngle) < 360
) ?
end :
startAngle + 360
),
correction = -90;
return {
start: deg2rad * (startAngle + correction),
end: deg2rad * (endAngle + correction)
};
}
};