Circle.js
782 Bytes
/**
* 圆形
* @module zrender/shape/Circle
*/
import Path from '../Path';
export default Path.extend({
type: 'circle',
shape: {
cx: 0,
cy: 0,
r: 0
},
buildPath: function (ctx, shape, inBundle) {
// Better stroking in ShapeBundle
// Always do it may have performence issue ( fill may be 2x more cost)
if (inBundle) {
ctx.moveTo(shape.cx + shape.r, shape.cy);
}
// else {
// if (ctx.allocate && !ctx.data.length) {
// ctx.allocate(ctx.CMD_MEM_SIZE.A);
// }
// }
// Better stroking in ShapeBundle
// ctx.moveTo(shape.cx + shape.r, shape.cy);
ctx.arc(shape.cx, shape.cy, shape.r, 0, Math.PI * 2, true);
}
});