84 lines
2.9 KiB
JavaScript
84 lines
2.9 KiB
JavaScript
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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var vec2 = require("zrender/lib/core/vector");
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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function circularLayout(seriesModel) {
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var coordSys = seriesModel.coordinateSystem;
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if (coordSys && coordSys.type !== 'view') {
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return;
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}
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var rect = coordSys.getBoundingRect();
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var nodeData = seriesModel.getData();
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var graph = nodeData.graph;
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var angle = 0;
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var sum = nodeData.getSum('value');
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var unitAngle = Math.PI * 2 / (sum || nodeData.count());
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var cx = rect.width / 2 + rect.x;
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var cy = rect.height / 2 + rect.y;
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var r = Math.min(rect.width, rect.height) / 2;
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graph.eachNode(function (node) {
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var value = node.getValue('value');
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angle += unitAngle * (sum ? value : 1) / 2;
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node.setLayout([r * Math.cos(angle) + cx, r * Math.sin(angle) + cy]);
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angle += unitAngle * (sum ? value : 1) / 2;
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});
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nodeData.setLayout({
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cx: cx,
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cy: cy
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});
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graph.eachEdge(function (edge) {
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var curveness = edge.getModel().get('lineStyle.curveness') || 0;
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var p1 = vec2.clone(edge.node1.getLayout());
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var p2 = vec2.clone(edge.node2.getLayout());
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var cp1;
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var x12 = (p1[0] + p2[0]) / 2;
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var y12 = (p1[1] + p2[1]) / 2;
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if (+curveness) {
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curveness *= 3;
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cp1 = [cx * curveness + x12 * (1 - curveness), cy * curveness + y12 * (1 - curveness)];
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}
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edge.setLayout([p1, p2, cp1]);
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});
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}
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exports.circularLayout = circularLayout; |