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我有一個自定義甜甜圈ChartJS(圓邊),但無法找到合適的辦法:ChartJS定製圓環圖中的版本不顯示2.6.0
這裏是Plunker
Chart.defaults.RoundedDoughnut = Chart.helpers.clone(Chart.defaults.doughnut);
Chart.controllers.RoundedDoughnut = Chart.controllers.doughnut.extend({
draw: function (ease) {
var ctx = this.chart.chart.ctx;
var easingDecimal = ease || 1;
Chart.helpers.each(this.getDataset().metaData, function (arc, index) {
arc.transition(easingDecimal).draw();
var vm = arc._view;
var radius = (vm.outerRadius + vm.innerRadius)/2;
var thickness = (vm.outerRadius - vm.innerRadius)/2;
var angle = Math.PI - vm.endAngle - Math.PI/2;
ctx.save();
ctx.fillStyle = vm.backgroundColor;
ctx.translate(vm.x, vm.y);
ctx.beginPath();
ctx.arc(radius * Math.sin(angle), radius * Math.cos(angle), thickness, 0, 2 * Math.PI);
ctx.arc(radius * Math.sin(Math.PI), radius * Math.cos(Math.PI), thickness, 0, 2 * Math.PI);
ctx.closePath();
ctx.fill();
ctx.restore();
});
},
});
var deliveredData = {
labels: [
"Value"
],
datasets: [
{
data: [85, 15],
backgroundColor: [
"#3ec556",
"rgba(0,0,0,0)"
],
borderWidth: [
0, 0
]
}]
};
var deliveredOpt = {
cutoutPercentage: 88,
animation: {
animationRotate: true,
duration: 3000
},
legend: {
display: false
},
tooltips: {
enabled: false
}
};
var chart = new Chart($('#myChart'), {
type: 'RoundedDoughnut',
data: deliveredData,
options: deliveredOpt
});
我加入IMG來說明問題#2 – zaggi
與鏈接編輯:) –