/**
* Copyright (c) 2017 ~ present NAVER Corp.
* billboard.js project is licensed under the MIT license
*/
/**
* polar config options
*/
export default {
/**
* Set polar options
* @name polar
* @memberof Options
* @type {object}
* @property {object} polar Polar object
* @property {boolean} [polar.label.show=true] Show or hide label on each polar piece.
* @property {Function} [polar.label.format] Set formatter for the label on each polar piece.
* @property {number} [polar.label.threshold=0.05] Set threshold ratio to show/hide labels.
* @property {number|Function} [polar.label.ratio=undefined] Set ratio of labels position.
* @property {number} [polar.level.depth=3] Set the level depth.
* @property {boolean} [polar.level.show=true] Show or hide level.
* @property {string} [polar.level.text.backgroundColor="#fff"] Set label text's background color.
* @property {Function} [polar.level.text.format] Set format function for the level value.<br>- Default value: `(x) => x % 1 === 0 ? x : x.toFixed(2)`
* @property {boolean} [polar.level.text.show=true] Show or hide level text.
* @property {number} [polar.padAngle=0] Set padding between data.
* @property {number} [polar.padding=0] Sets the gap between pie arcs.
* @property {number} [polar.startingAngle=0] Set starting angle where data draws.
* @see [Demo](https://naver.github.io/billboard.js/demo/#Chart.PolarChart)
* @example
* polar: {
* label: {
* show: false,
* format: function(value, ratio, id) {
* return d3.format("$")(value);
*
* // to multiline, return with '\n' character
* // return value +"%\nLine1\n2Line2";
* },
*
* // 0.1(10%) ratio value means, the minimum ratio to show text label relative to the total value.
* // if data value is below than 0.1, text label will be hidden.
* threshold: 0.1,
*
* // set ratio callback. Should return ratio value
* ratio: function(d, radius, h) {
* ...
* return ratio;
* },
* // or set ratio number
* ratio: 0.5
* },
* level: {
* depth: 3,
* max: 500,
* show: true,
* text: {
* format: function(x) {
* return x + "%";
* },
* show: true,
* backgroundColor: "red"
* }
* },
* padAngle: 0.1,
* padding: 0,
* startingAngle: 1
* }
*/
polar_label_show: true,
polar_label_format: <(() => number|string)|undefined> undefined,
polar_label_threshold: 0.05,
polar_label_ratio: <(() => number)|undefined> undefined,
polar_level_depth: 3,
polar_level_max: <number|undefined> undefined,
polar_level_show: true,
polar_level_text_backgroundColor: "#fff",
polar_level_text_format: (x: number) => (x % 1 === 0 ? x : x.toFixed(2)),
polar_level_text_show: true,
polar_padAngle: 0,
polar_padding: 0,
polar_startingAngle: 0
};