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| /**
| * 扇形
| * @module zrender/graphic/shape/Sector
| */
|
| import Path from '../Path';
| import fixClipWithShadow from '../helper/fixClipWithShadow';
|
| export default Path.extend({
|
| type: 'sector',
|
| shape: {
|
| cx: 0,
|
| cy: 0,
|
| r0: 0,
|
| r: 0,
|
| startAngle: 0,
|
| endAngle: Math.PI * 2,
|
| clockwise: true
| },
|
| brush: fixClipWithShadow(Path.prototype.brush),
|
| buildPath: function (ctx, shape) {
|
| var x = shape.cx;
| var y = shape.cy;
| var r0 = Math.max(shape.r0 || 0, 0);
| var r = Math.max(shape.r, 0);
| var startAngle = shape.startAngle;
| var endAngle = shape.endAngle;
| var clockwise = shape.clockwise;
|
| var unitX = Math.cos(startAngle);
| var unitY = Math.sin(startAngle);
|
| ctx.moveTo(unitX * r0 + x, unitY * r0 + y);
|
| ctx.lineTo(unitX * r + x, unitY * r + y);
|
| ctx.arc(x, y, r, startAngle, endAngle, !clockwise);
|
| ctx.lineTo(
| Math.cos(endAngle) * r0 + x,
| Math.sin(endAngle) * r0 + y
| );
|
| if (r0 !== 0) {
| ctx.arc(x, y, r0, endAngle, startAngle, clockwise);
| }
|
| ctx.closePath();
| }
| });
|
|
