bd028579
 易尊强
2/28
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
/**
* 圆形
*/
import Path, { PathProps } from '../Path';
export class CircleShape {
cx = 0
cy = 0
r = 0
}
export interface CircleProps extends PathProps {
shape?: Partial<CircleShape>
}
class Circle extends Path<CircleProps> {
shape: CircleShape
constructor(opts?: CircleProps) {
super(opts);
}
getDefaultShape() {
return new CircleShape();
}
buildPath(ctx: CanvasRenderingContext2D, shape: CircleShape) {
// Use moveTo to start a new sub path.
// Or it will be connected to other subpaths when in CompoundPath
ctx.moveTo(shape.cx + shape.r, shape.cy);
ctx.arc(shape.cx, shape.cy, shape.r, 0, Math.PI * 2);
}
};
Circle.prototype.type = 'circle';
export default Circle;
|
