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Normalize rotation and circumference resolution (#8015)

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Jukka Kurkela 2020-11-06 15:06:38 +02:00 committed by GitHub
parent 10ffe753d9
commit d393fa8b51
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 19 additions and 7 deletions
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26
src/controllers/controller.doughnut.js
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@ -76,6 +76,20 @@ export default class DoughnutController extends DatasetController {
return ringIndex;
}
/**
* @private
*/
_getRotation() {
return toRadians(valueOrDefault(this._config.rotation, this.chart.options.rotation) - 90);
}
/**
* @private
*/
_getCircumference() {
return toRadians(valueOrDefault(this._config.circumference, this.chart.options.circumference));
}
/**
* Get the maximal rotation & circumference extents
* across all visible datasets.
@ -85,20 +99,18 @@ export default class DoughnutController extends DatasetController {
let max = -TAU;
const me = this;
const opts = me.chart.options;
for (let i = 0; i < me.chart.data.datasets.length; ++i) {
if (me.chart.isDatasetVisible(i)) {
const dataset = me.chart.data.datasets[i];
const rotation = toRadians(valueOrDefault(dataset.rotation, opts.rotation) - 90);
const circumference = toRadians(valueOrDefault(dataset.circumference, opts.circumference));
const controller = me.chart.getDatasetMeta(i).controller;
const rotation = controller._getRotation();
const circumference = controller._getCircumference();
min = Math.min(min, rotation);
max = Math.max(max, rotation + circumference);
}
}
return {
rotation: min,
circumference: max - min,
@ -146,7 +158,7 @@ export default class DoughnutController extends DatasetController {
const me = this;
const opts = me.chart.options;
const meta = me._cachedMeta;
const circumference = toRadians(valueOrDefault(me._config.circumference, opts.circumference));
const circumference = me._getCircumference();
return reset && opts.animation.animateRotate ? 0 : this.chart.getDataVisibility(i) ? me.calculateCircumference(meta._parsed[i] * circumference / TAU) : 0;
}
@ -165,7 +177,7 @@ export default class DoughnutController extends DatasetController {
const firstOpts = me.resolveDataElementOptions(start, mode);
const sharedOptions = me.getSharedOptions(firstOpts);
const includeOptions = me.includeOptions(mode, sharedOptions);
let startAngle = toRadians(valueOrDefault(me._config.rotation, opts.rotation) - 90);
let startAngle = me._getRotation();
let i;
for (i = 0; i < start; ++i) {