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https://github.com/UnickSoft/graphonline.git
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Change script location.
Split js code. Added cache and changed loading mechanism for js sources.
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125
script/features/algorithms/model/plugins/BFS.js
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125
script/features/algorithms/model/plugins/BFS.js
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/**
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* Find short path.
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*
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*/
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function BFSAlgorithm(graph, app)
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{
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BaseTraversal.apply(this, arguments);
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this.message = g_startTraversal;
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}
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// inheritance.
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BFSAlgorithm.prototype = Object.create(BaseTraversal.prototype);
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// timer interval
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BFSAlgorithm.prototype.timerInterval = 500;
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BFSAlgorithm.prototype.getName = function(local)
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{
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return g_BFSName;// local == "ru" ? "Поиск в ширину" : "Breadth-first search";
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}
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BFSAlgorithm.prototype.getId = function()
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{
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return "OlegSh.BFSAlgorithm";
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}
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// @return message for user.
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BFSAlgorithm.prototype.getMessage = function(local)
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{
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return this.message;
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}
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BFSAlgorithm.prototype.getCategory = function()
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{
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return 1;
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}
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BFSAlgorithm.prototype.result = function(resultCallback)
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{
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var result = {};
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result["version"] = 1;
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return result;
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}
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BFSAlgorithm.prototype.getMainMessage = function()
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{
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var message = g_traversalOrder;
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// calculate.
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var tempVisited = this.visited.slice();
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var tempEdge = [];
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var oldLength = 0;
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while (oldLength < tempVisited.length)
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{
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oldLength = tempVisited.length;
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for (var i = 0; i < tempVisited.length; i++)
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{
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if (this.bfs(tempVisited[i], tempVisited, tempEdge))
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break;
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}
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}
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// Format message
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for (var i = 0; i < tempVisited.length; i ++)
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{
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tempVisited[i].upText = (i + 1) + "";
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message = message + tempVisited[i].mainText + " ";
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}
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return message;
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}
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BFSAlgorithm.prototype.getPriority = function()
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{
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return -9.5;
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}
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BFSAlgorithm.prototype.step = function()
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{
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for (var i = 0; i < this.visited.length; i++)
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{
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if (this.bfs(this.visited[i], this.visited, this.edges))
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{
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this.app.redrawGraph();
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return;
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}
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}
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clearTimeout(this.timer);
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this.timer = null;
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return;
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}
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BFSAlgorithm.prototype.bfs = function(vertex, vertexArray, edgeArray)
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{
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for (var i = 0; i < this.graph.vertices.length; i ++)
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{
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var nextVertex = this.graph.vertices[i];
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var edge = this.graph.FindEdgeAny(vertex.id, nextVertex.id);
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if (edge && !vertexArray.includes(nextVertex))
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{
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edgeArray.push(edge);
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vertexArray.push(nextVertex);
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return true;
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}
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}
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return false;
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}
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// Algorithm support multi graph
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BFSAlgorithm.prototype.IsSupportMultiGraph = function()
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{
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return true;
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}
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// Factory for connected components.
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function CreateBFSAlgorithm(graph, app)
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{
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return new BFSAlgorithm(graph, app)
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}
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// Gerister connected component.
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RegisterAlgorithm (CreateBFSAlgorithm);
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