| /* |
| * 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. |
| */ |
| |
| /** |
| * @file Visual encoding for sankey view |
| * @author Deqing Li(annong035@gmail.com) |
| */ |
| import VisualMapping from '../../visual/VisualMapping'; |
| import * as zrUtil from 'zrender/src/core/util'; |
| export default function (ecModel, payload) { |
| ecModel.eachSeriesByType('sankey', function (seriesModel) { |
| var graph = seriesModel.getGraph(); |
| var nodes = graph.nodes; |
| |
| if (nodes.length) { |
| var minValue = Infinity; |
| var maxValue = -Infinity; |
| zrUtil.each(nodes, function (node) { |
| var nodeValue = node.getLayout().value; |
| |
| if (nodeValue < minValue) { |
| minValue = nodeValue; |
| } |
| |
| if (nodeValue > maxValue) { |
| maxValue = nodeValue; |
| } |
| }); |
| zrUtil.each(nodes, function (node) { |
| var mapping = new VisualMapping({ |
| type: 'color', |
| mappingMethod: 'linear', |
| dataExtent: [minValue, maxValue], |
| visual: seriesModel.get('color') |
| }); |
| var mapValueToColor = mapping.mapValueToVisual(node.getLayout().value); |
| var customColor = node.getModel().get('itemStyle.color'); |
| customColor != null ? node.setVisual('color', customColor) : node.setVisual('color', mapValueToColor); |
| }); |
| } |
| }); |
| } |