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