| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| import { extendShape } from '../graphic'; |
| /** |
| * Sausage: similar to sector, but have half circle on both sides |
| * @public |
| */ |
| |
| export default extendShape({ |
| type: 'sausage', |
| shape: { |
| cx: 0, |
| cy: 0, |
| r0: 0, |
| r: 0, |
| startAngle: 0, |
| endAngle: Math.PI * 2, |
| clockwise: true |
| }, |
| 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 dr = (r - r0) * 0.5; |
| var rCenter = r0 + dr; |
| var startAngle = shape.startAngle; |
| var endAngle = shape.endAngle; |
| var clockwise = shape.clockwise; |
| var unitStartX = Math.cos(startAngle); |
| var unitStartY = Math.sin(startAngle); |
| var unitEndX = Math.cos(endAngle); |
| var unitEndY = Math.sin(endAngle); |
| var lessThanCircle = clockwise ? endAngle - startAngle < Math.PI * 2 : startAngle - endAngle < Math.PI * 2; |
| |
| if (lessThanCircle) { |
| ctx.moveTo(unitStartX * r0 + x, unitStartY * r0 + y); |
| ctx.arc(unitStartX * rCenter + x, unitStartY * rCenter + y, dr, -Math.PI + startAngle, startAngle, !clockwise); |
| } |
| |
| ctx.arc(x, y, r, startAngle, endAngle, !clockwise); |
| ctx.moveTo(unitEndX * r + x, unitEndY * r + y); |
| ctx.arc(unitEndX * rCenter + x, unitEndY * rCenter + y, dr, endAngle - Math.PI * 2, endAngle - Math.PI, !clockwise); |
| |
| if (r0 !== 0) { |
| ctx.arc(x, y, r0, endAngle, startAngle, clockwise); |
| ctx.moveTo(unitStartX * r0 + x, unitEndY * r0 + y); |
| } |
| |
| ctx.closePath(); |
| } |
| }); |