/**
* Copyright (c) 2017 ~ present NAVER Corp.
* billboard.js project is licensed under the MIT license
*/
/**
* arc config options
*/
export default {
/**
* Set arc options
* @name arc
* @memberof Options
* @type {object}
* @property {object} arc Arc object
* @property {number|Function} [arc.cornerRadius=0] Set corner radius of Arc(donut/gauge/pie/polar) shape.
* - **NOTE:**
* - Corner radius can't surpass the `(outerRadius - innerRadius) /2` of indicated shape.
* @property {number} [arc.cornerRadius.ratio=0] Set ratio relative of outer radius.
* @property {object} [arc.needle] Set needle options.
* @property {boolean} [arc.needle.show=false] Show or hide needle.
* @property {string} [arc.needle.color] Set needle filled color.
* @property {Function} [arc.needle.path] Set custom needle path function.
* - **NOTE:**
* - The path should be starting from 0,0 (which is center) to top center coordinate.
* - The function will receive, `length`{number} parameter which indicating the needle length in pixel relative to radius.
* @property {number} [arc.needle.value] Set needle value.
* - **NOTE:**
* - For single gauge chart, needle will point the data value by default, otherwise will point 0(zero).
* @property {number} [arc.needle.length=100] Set needle length in percentages relative to radius.
* @property {object} [arc.needle.top] Set needle top options.
* @property {number} [arc.needle.top.rx=0] Set needle top [rx radius value](https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/d#elliptical_arc_curve).
* @property {number} [arc.needle.top.ry=0] Set needle top [ry radius value](https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/d#elliptical_arc_curve).
* @property {number} [arc.needle.top.width=0] Set needle top width in pixel.
* @property {object} [arc.needle.bottom] Set needle bottom options.
* @property {number} [arc.needle.bottom.rx=1] Set needle bottom [rx radius value](https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/d#elliptical_arc_curve).
* @property {number} [arc.needle.bottom.ry=1] Set needle bottom [ry radius value](https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/d#elliptical_arc_curve).
* @property {number} [arc.needle.bottom.width=15] Set needle bottom width in pixel.
* @property {number} [arc.needle.bottom.len=0] Set needle bottom length in pixel. Setting this value, will make bottom larger starting from center.
* @see [Demo: Donut corner radius](https://naver.github.io/billboard.js/demo/#DonutChartOptions.DonutCornerRadius)
* @see [Demo: Gauge corner radius](https://naver.github.io/billboard.js/demo/#GaugeChartOptions.GaugeCornerRadius)
* @see [Demo: Donut corner radius](https://naver.github.io/billboard.js/demo/#PieChartOptions.CornerRadius)
* @see [Demo: Donut needle](https://naver.github.io/billboard.js/demo/#DonutChartOptions.DonutNeedle)
* @see [Demo: Gauge needle](https://naver.github.io/billboard.js/demo/##GaugeChartOptions.GaugeNeedle)
* @example
* arc: {
* cornerRadius: 12,
*
* // can customize corner radius for each data with function callback
* //
* // The function will receive:
* // - id {string}: Data id
* // - value {number}: Data value
* // - outerRadius {number}: Outer radius value
* cornerRadius: function(id, value, outerRadius) {
* return (id === "data1" && value > 10) ?
* 50 : outerRadius * 1.2;
* },
*
* // set ratio relative of outer radius
* cornerRadius: {
* ratio: 0.5
* },
*
* needle: {
* show: true,
* color: "red", // any valid CSS color
* path: function(length) {
* const len = length - 20;
*
* // will return upper arrow shape path
* // Note: The path should begun from '0,0' coordinate to top center.
* const path = `M 0 -${len + 20}
* L -12 -${len}
* L -5 -${len}
* L -5 0
* A 1 1 0 0 0 5 0
* L 5 -${len}
* L 12 -${len} Z`;
*
* return path;
* },
* value: 40, // will make needle to point value 40.
* length: 80, // needle length in percentages relative to radius.
*
* top: {
* // rx and ry are the two radii of the ellipse;
* // https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/d#elliptical_arc_curve
* rx: 1,
* ry: 1,
* width: 5
* },
* bottom: {
* // rx and ry are the two radii of the ellipse;
* // https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/d#elliptical_arc_curve
* rx: 1,
* ry: 1,
* width: 10
* len: 10
* }
* }
* }
*/
arc_cornerRadius: <
number|((id: string, value: number) => number)
> 0,
arc_cornerRadius_ratio: 0,
arc_needle_show: false,
arc_needle_color: <string|undefined> undefined,
arc_needle_value: <number|undefined> undefined,
arc_needle_path: undefined,
arc_needle_length: 100,
arc_needle_top_rx: 0,
arc_needle_top_ry: 0,
arc_needle_top_width: 0,
arc_needle_bottom_rx: 1,
arc_needle_bottom_ry: 1,
arc_needle_bottom_width: 15,
arc_needle_bottom_len: 0
};