lepu-test-platform-web/node_modules/echarts/lib/util/shape/sausage.js

93 lines
3.1 KiB
JavaScript

/*
* 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.
*/
var _graphic = require("../graphic");
var extendShape = _graphic.extendShape;
/*
* 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.
*/
/**
* Sausage: similar to sector, but have half circle on both sides
* @public
*/
var _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();
}
});
module.exports = _default;