createGraphFromNodeEdge.js
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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 zrUtil from 'zrender/src/core/util';
import List from '../../data/List';
import Graph from '../../data/Graph';
import linkList from '../../data/helper/linkList';
import createDimensions from '../../data/helper/createDimensions';
import CoordinateSystem from '../../CoordinateSystem';
import createListFromArray from './createListFromArray';
export default function (nodes, edges, seriesModel, directed, beforeLink) {
// ??? TODO
// support dataset?
var graph = new Graph(directed);
for (var i = 0; i < nodes.length; i++) {
graph.addNode(zrUtil.retrieve(
// Id, name, dataIndex
nodes[i].id, nodes[i].name, i
), i);
}
var linkNameList = [];
var validEdges = [];
var linkCount = 0;
for (var i = 0; i < edges.length; i++) {
var link = edges[i];
var source = link.source;
var target = link.target;
// addEdge may fail when source or target not exists
if (graph.addEdge(source, target, linkCount)) {
validEdges.push(link);
linkNameList.push(zrUtil.retrieve(link.id, source + ' > ' + target));
linkCount++;
}
}
var coordSys = seriesModel.get('coordinateSystem');
var nodeData;
if (coordSys === 'cartesian2d' || coordSys === 'polar') {
nodeData = createListFromArray(nodes, seriesModel);
}
else {
var coordSysCtor = CoordinateSystem.get(coordSys);
var coordDimensions = (coordSysCtor && coordSysCtor.type !== 'view')
? (coordSysCtor.dimensions || []) : [];
// FIXME: Some geo do not need `value` dimenson, whereas `calendar` needs
// `value` dimension, but graph need `value` dimension. It's better to
// uniform this behavior.
if (zrUtil.indexOf(coordDimensions, 'value') < 0) {
coordDimensions.concat(['value']);
}
var dimensionNames = createDimensions(nodes, {
coordDimensions: coordDimensions
});
nodeData = new List(dimensionNames, seriesModel);
nodeData.initData(nodes);
}
var edgeData = new List(['value'], seriesModel);
edgeData.initData(validEdges, linkNameList);
beforeLink && beforeLink(nodeData, edgeData);
linkList({
mainData: nodeData,
struct: graph,
structAttr: 'graph',
datas: {node: nodeData, edge: edgeData},
datasAttr: {node: 'data', edge: 'edgeData'}
});
// Update dataIndex of nodes and edges because invalid edge may be removed
graph.update();
return graph;
}