aaac7fed
 liuqimichale
add
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/*
* 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 vec2 from 'zrender/src/core/vector';
export function circularLayout(seriesModel) {
var coordSys = seriesModel.coordinateSystem;
if (coordSys && coordSys.type !== 'view') {
return;
}
var rect = coordSys.getBoundingRect();
var nodeData = seriesModel.getData();
var graph = nodeData.graph;
var angle = 0;
var sum = nodeData.getSum('value');
var unitAngle = Math.PI * 2 / (sum || nodeData.count());
var cx = rect.width / 2 + rect.x;
var cy = rect.height / 2 + rect.y;
var r = Math.min(rect.width, rect.height) / 2;
graph.eachNode(function (node) {
var value = node.getValue('value');
angle += unitAngle * (sum ? value : 1) / 2;
node.setLayout([
r * Math.cos(angle) + cx,
r * Math.sin(angle) + cy
]);
angle += unitAngle * (sum ? value : 1) / 2;
});
nodeData.setLayout({
cx: cx,
cy: cy
});
graph.eachEdge(function (edge) {
var curveness = edge.getModel().get('lineStyle.curveness') || 0;
var p1 = vec2.clone(edge.node1.getLayout());
var p2 = vec2.clone(edge.node2.getLayout());
var cp1;
var x12 = (p1[0] + p2[0]) / 2;
var y12 = (p1[1] + p2[1]) / 2;
if (+curveness) {
curveness *= 3;
cp1 = [
cx * curveness + x12 * (1 - curveness),
cy * curveness + y12 * (1 - curveness)
];
}
edge.setLayout([p1, p2, cp1]);
});
}
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