| /** |
| * Line path for bezier and straight line draw |
| */ |
| import * as graphic from '../../util/graphic'; |
| import * as vec2 from 'zrender/src/core/vector'; |
| var straightLineProto = graphic.Line.prototype; |
| var bezierCurveProto = graphic.BezierCurve.prototype; |
| |
| function isLine(shape) { |
| return isNaN(+shape.cpx1) || isNaN(+shape.cpy1); |
| } |
| |
| export default graphic.extendShape({ |
| type: 'ec-line', |
| style: { |
| stroke: '#000', |
| fill: null |
| }, |
| shape: { |
| x1: 0, |
| y1: 0, |
| x2: 0, |
| y2: 0, |
| percent: 1, |
| cpx1: null, |
| cpy1: null |
| }, |
| buildPath: function (ctx, shape) { |
| (isLine(shape) ? straightLineProto : bezierCurveProto).buildPath(ctx, shape); |
| }, |
| pointAt: function (t) { |
| return isLine(this.shape) ? straightLineProto.pointAt.call(this, t) : bezierCurveProto.pointAt.call(this, t); |
| }, |
| tangentAt: function (t) { |
| var shape = this.shape; |
| var p = isLine(shape) ? [shape.x2 - shape.x1, shape.y2 - shape.y1] : bezierCurveProto.tangentAt.call(this, t); |
| return vec2.normalize(p, p); |
| } |
| }); |