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| /**
| * 玫瑰线
| * @module zrender/graphic/shape/Rose
| */
|
| import Path from '../Path';
|
| var sin = Math.sin;
| var cos = Math.cos;
| var radian = Math.PI / 180;
|
| export default Path.extend({
|
| type: 'rose',
|
| shape: {
| cx: 0,
| cy: 0,
| r: [],
| k: 0,
| n: 1
| },
|
| style: {
| stroke: '#000',
| fill: null
| },
|
| buildPath: function (ctx, shape) {
| var x;
| var y;
| var R = shape.r;
| var r;
| var k = shape.k;
| var n = shape.n;
|
| var x0 = shape.cx;
| var y0 = shape.cy;
|
| ctx.moveTo(x0, y0);
|
| for (var i = 0, len = R.length; i < len; i++) {
| r = R[i];
|
| for (var j = 0; j <= 360 * n; j++) {
| x = r
| * sin(k / n * j % 360 * radian)
| * cos(j * radian)
| + x0;
| y = r
| * sin(k / n * j % 360 * radian)
| * sin(j * radian)
| + y0;
| ctx.lineTo(x, y);
| }
| }
| }
| });
|
|
