| /* |
| * 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 * as graphic from '../../util/graphic'; |
| var sin = Math.sin; |
| var cos = Math.cos; |
| export default graphic.extendShape({ |
| type: 'ec-ribbon', |
| shape: { |
| cx: 0, |
| cy: 0, |
| r: 0, |
| s0: 0, |
| s1: 0, |
| t0: 0, |
| t1: 0 |
| }, |
| style: { |
| fill: '#000' |
| }, |
| buildPath: function (ctx, shape) { |
| var clockwise = shape.clockwise || false; |
| var cx = shape.cx; |
| var cy = shape.cy; |
| var r = shape.r; |
| var s0 = shape.s0; |
| var s1 = shape.s1; |
| var t0 = shape.t0; |
| var t1 = shape.t1; |
| var sx0 = cx + cos(s0) * r; |
| var sy0 = cy + sin(s0) * r; |
| var sx1 = cx + cos(s1) * r; |
| var sy1 = cy + sin(s1) * r; |
| var tx0 = cx + cos(t0) * r; |
| var ty0 = cy + sin(t0) * r; |
| var tx1 = cx + cos(t1) * r; |
| var ty1 = cy + sin(t1) * r; |
| ctx.moveTo(sx0, sy0); |
| ctx.arc(cx, cy, shape.r, s0, s1, !clockwise); |
| ctx.bezierCurveTo((cx - sx1) * 0.70 + sx1, (cy - sy1) * 0.70 + sy1, (cx - tx0) * 0.70 + tx0, (cy - ty0) * 0.70 + ty0, tx0, ty0); // Chord to self |
| |
| if (shape.s0 === shape.t0 && shape.s1 === shape.t1) { |
| return; |
| } |
| |
| ctx.arc(cx, cy, shape.r, t0, t1, !clockwise); |
| ctx.bezierCurveTo((cx - tx1) * 0.70 + tx1, (cy - ty1) * 0.70 + ty1, (cx - sx0) * 0.70 + sx0, (cy - sy0) * 0.70 + sy0, sx0, sy0); |
| } |
| }); |