mirror of
https://github.com/chartjs/Chart.js.git
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f1810586f7
* Pie: Fix last slice animation and NaN handling * Add tests * Fix polarArea
66 lines
1.6 KiB
JavaScript
66 lines
1.6 KiB
JavaScript
const canvas = document.createElement('canvas');
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canvas.width = 512;
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canvas.height = 512;
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const ctx = canvas.getContext('2d');
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module.exports = {
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config: {
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type: 'doughnut',
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data: {
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labels: ['A', 'B', 'C', 'D', 'E'],
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datasets: [{
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data: [1],
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backgroundColor: 'rgba(255, 99, 132, 0.8)',
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borderWidth: 4,
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borderColor: 'rgb(255, 99, 132)',
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}]
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},
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options: {
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animation: {
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duration: 0,
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easing: 'linear',
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},
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responsive: false,
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plugins: {
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legend: false,
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title: false,
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tooltip: false,
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filler: false
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}
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},
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},
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options: {
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canvas: {
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height: 512,
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width: 512
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},
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run: function(chart) {
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chart.options.animation.duration = 8000;
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chart.toggleDataVisibility(0);
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chart.update();
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const animator = Chart.animator;
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// disable animator
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const backup = animator._refresh;
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animator._refresh = function() { };
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return new Promise((resolve) => {
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window.requestAnimationFrame(() => {
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const anims = animator._getAnims(chart);
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const start = anims.items[0]._start;
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for (let i = 0; i < 16; i++) {
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animator._update(start + i * 500);
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let x = i % 4 * 128;
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let y = Math.floor(i / 4) * 128;
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ctx.drawImage(chart.canvas, x, y, 128, 128);
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}
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Chart.helpers.clearCanvas(chart.canvas);
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chart.ctx.drawImage(canvas, 0, 0);
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animator._refresh = backup;
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resolve();
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});
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});
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}
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}
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};
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