echarts sankeyVisual 源码
echarts sankeyVisual 代码
文件路径：/src/chart/sankey/sankeyVisual.ts
/*
* 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 zrUtil from 'zrender/src/core/util';
import VisualMapping from '../../visual/VisualMapping';
import GlobalModel from '../../model/Global';
import SankeySeriesModel, { SankeyEdgeItemOption, SankeyNodeItemOption } from './SankeySeries';
export default function sankeyVisual(ecModel: GlobalModel) {
ecModel.eachSeriesByType('sankey', function (seriesModel: SankeySeriesModel) {
const graph = seriesModel.getGraph();
const nodes = graph.nodes;
const edges = graph.edges;
if (nodes.length) {
let minValue = Infinity;
let maxValue = -Infinity;
zrUtil.each(nodes, function (node) {
const nodeValue = node.getLayout().value;
if (nodeValue < minValue) {
minValue = nodeValue;
}
if (nodeValue > maxValue) {
maxValue = nodeValue;
}
});
zrUtil.each(nodes, function (node) {
const mapping = new VisualMapping({
type: 'color',
mappingMethod: 'linear',
dataExtent: [minValue, maxValue],
visual: seriesModel.get('color')
});
const mapValueToColor = mapping.mapValueToVisual(node.getLayout().value);
const customColor = node.getModel<SankeyNodeItemOption>().get(['itemStyle', 'color']);
if (customColor != null) {
node.setVisual('color', customColor);
node.setVisual('style', {fill: customColor});
}
else {
node.setVisual('color', mapValueToColor);
node.setVisual('style', {fill: mapValueToColor});
}
});
}
if (edges.length) {
zrUtil.each(edges, function (edge) {
const edgeStyle = edge.getModel<SankeyEdgeItemOption>().get('lineStyle');
edge.setVisual('style', edgeStyle);
});
}
});
}
相关信息
相关文章
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
6、 golang
-
8、 openharmony