35 lines
890 B
JavaScript
35 lines
890 B
JavaScript
import { isSimpleGraph } from '../essence';
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import Graph from '../Graph';
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/**
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* @description Get the graph's complement
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* @description.zh-CN 获取图的补图
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*/
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export var getGraphComplement = function getGraphComplement(originGraph) {
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if (!isSimpleGraph(originGraph)) {
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return null;
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}
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var nodeCount = originGraph.nodeCount();
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var complementGraph = new Graph({
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compound: originGraph.isCompound(),
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directed: originGraph.isDirected(),
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multigraph: originGraph.isMultigraph()
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});
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var nodes = originGraph.nodes();
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for (var i = 0; i < nodeCount; i++) {
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var nodei = nodes[i];
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complementGraph.setNode(nodei, originGraph.node(nodei));
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for (var j = i + 1; j < nodeCount; j++) {
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var nodej = nodes[j];
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if (!originGraph.hasEdge(nodei, nodej)) {
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complementGraph.setEdge(nodei, nodej);
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}
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}
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}
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return complementGraph;
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}; |