svn-gvsig-desktop / trunk / extensions / extGraph / src / org / gvsig / graph / core / GvNode.java @ 35157
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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package org.gvsig.graph.core; |
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import java.util.ArrayList; |
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import org.gvsig.fmap.algorithm.triangulation.visad.SetException; |
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public class GvNode implements Comparable<GvNode> { |
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public final static int statNotInList = 0; |
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public final static int statNowInList = 1; |
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public final static int statWasInList = 2; |
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private int idNode; |
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private double x; |
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private double y; |
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// int from_link = -1; // id del Arco desde el que hemos llegado
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int numSoluc = 0; // Empezamos con esto a cero en toda la red. |
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// De manera global, habr? una variable numSolucGlobal que indica el n? de cada petici?n de ruta.
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// Sirve para no tener que inicializar siempre tooooda la red. Lo que hacemos es comparar el
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// n? de petici?n global con este. Si no coinciden, antes de hacer nada hay que inicializar su
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// best_cost a infinito.
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// double best_cost = Double.MAX_VALUE;
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double accumulatedLength = 0; |
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double stimation = Double.MAX_VALUE; // bestCost + something related to destiny's euclidean length |
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int status;
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// ArrayList<GvEdge> outputLinks = new ArrayList<GvEdge>(); // Neighbors links
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// ArrayList<GvEdge> inputLinks = new ArrayList<GvEdge>(); // links with end node in this node.
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ArrayList<GvConnector> connectors = new ArrayList<GvConnector>(2); |
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ArrayList<GvTurn> turnCosts = new ArrayList<GvTurn>(0); // Turn costs. If a GvTurnCost exists, we add its cost. |
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// If the cost is < 0, it is a prohibited cost.
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public GvNode() {
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initialize(); |
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} |
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public void initialize() { |
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numSoluc = GlobalCounter.numSolucGlobal; |
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// from_link = -1;
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// best_cost = Double.MAX_VALUE;
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stimation = Double.MAX_VALUE;
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accumulatedLength = 0;
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status = statNotInList; |
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GvConnector c; |
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for (int iConec=0; iConec< connectors.size(); iConec++) |
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{
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c = connectors.get(iConec); |
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c.setFrom_link_c(-1);
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c.setBestCostOut(Double.MAX_VALUE);
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c.setBestCostIn(Double.MAX_VALUE);
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c.setMustBeRevised(true);
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} |
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} |
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public int getIdNode() { |
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return idNode;
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} |
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public void setIdNode(int idNode) { |
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this.idNode = idNode;
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} |
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public double getX() { |
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return x;
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} |
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public void setX(double x) { |
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this.x = x;
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} |
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public double getY() { |
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return y;
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} |
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public void setY(double y) { |
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this.y = y;
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} |
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// public double getBestCost() {
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// if (numSoluc != GlobalCounter.getGlobalSolutionNumber())
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// return Double.MAX_VALUE;
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// return best_cost;
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// }
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// public void setBestCost(double best_cost) {
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// this.best_cost = best_cost;
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// }
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// public ArrayList getOutputLinks() {
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// return outputLinks;
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// }
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public double getStimation() { |
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return stimation;
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} |
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public void setStimation(double estimacion) { |
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this.stimation = estimacion;
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} |
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// public int getFromLink() {
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// return from_link;
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// }
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// public void setFromLink(int from_link) {
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// this.from_link = from_link;
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// }
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public ArrayList<GvTurn> getTurnCosts() { |
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return turnCosts;
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} |
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public void setTurnCosts(ArrayList<GvTurn> turns) { |
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this.turnCosts = turns;
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} |
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public int getNumSoluc() { |
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return numSoluc;
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} |
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public void setNumSoluc(int numSoluc) { |
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this.numSoluc = numSoluc;
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} |
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public int getStatus() { |
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return status;
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} |
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public void setStatus(int status) { |
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this.status = status;
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} |
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public void calculateStimation(GvNode finalNode, double newCost) { |
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double DeltaX = ((finalNode.getX() - x)/1000.0)*((finalNode.getX() - x)/1000.0); |
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double DeltaY = ((finalNode.getY() - y)/1000.0)*((finalNode.getY() - y)/1000.0); |
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double distLineaRecta = Math.sqrt(DeltaX + DeltaY); // En Km |
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stimation = newCost + (distLineaRecta* 30.0); // Segundos que tardamos en recorrer esos Km a 120 Km/hora |
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} |
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public double getAccumulatedLength() { |
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return accumulatedLength;
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} |
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public void setAccumulatedLength(double accumulatedLength) { |
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this.accumulatedLength = accumulatedLength;
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} |
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public int getOutputDegree() { |
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int numOutLink = 0; |
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for (int iConec=0; iConec< connectors.size(); iConec++) |
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{
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GvConnector c = connectors.get(iConec); |
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if (c.getEdgeOut() == null) continue; |
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numOutLink++; |
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} |
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return numOutLink;
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} |
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public int getInputDegree() { |
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int numInLink = 0; |
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for (int iConec=0; iConec< connectors.size(); iConec++) |
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{
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GvConnector c = connectors.get(iConec); |
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if (c.getEdgeIn() == null) continue; |
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numInLink++; |
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} |
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return numInLink;
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} |
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public EdgeOutIterator getOutputEdgeIterator() {
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return new EdgeOutIterator(this); |
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} |
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public EdgeInIterator getInputEdgeIterator() {
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return new EdgeInIterator(this); |
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} |
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/**
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* Returns the link that we have used to reach idEdgeOut. Important for turn costs.
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* @param idArcoS
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* @return
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*/
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public int get_from_link(long idEdgeOut) |
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{
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// Queremos saber desde qu? arco hemos entrado para llegar a este arco.
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for (int iConec =0; iConec < connectors.size(); iConec++) { |
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GvConnector c = connectors.get(iConec); |
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if (c.getEdgeOut() != null) { |
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if (c.getEdgeOut().getIdEdge() == idEdgeOut)
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{
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return c.getFrom_link_c();
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} |
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} |
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} |
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// TODO: throw exception??
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return -1; |
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} |
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public int get_best_from_link() |
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{
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// Queremos saber desde qu? arco hemos entrado para llegar a este arco.
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GvConnector c; |
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int best_link = -1; |
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double bestCost = Double.MAX_VALUE; |
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for (int iConec=0; iConec< connectors.size(); iConec++) |
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{
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c = connectors.get(iConec); |
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if (c.getBestCostOut() < bestCost)
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{
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bestCost = c.getBestCostOut(); |
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best_link = c.getFrom_link_c(); |
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} |
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} |
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return best_link;
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} |
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public boolean existeMejora(GvEdge edge, double newCost) |
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{
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// Si entrando desde ese arco mejoramos el coste de alg?n conector, devolvemos que
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// hay mejora
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// NO QUEREMOS TOCAR EL CONECTOR PROPIO!!!! (Para evitar que en un nodo hagamos un U-turn) (Pero s? hay que marcarlo como con mejora, si existe)
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// Y tampoco hay que tener en cuenta los costes de giros para los conectores que toque.
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boolean hayMejora = false; |
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GvConnector c; |
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double auxCost;
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boolean bGiroProhibido;
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double costeGiro;
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// char Msg[200];
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// log("Dentro de existeMejora");
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for (int iConec=0; iConec< connectors.size(); iConec++) |
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{
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// sprintf(Msg,"Conector iConec=%ld de %ld. Capacity=%ld", iConec, Conectores.size(), Conectores.capacity());
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// log(Msg);
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auxCost = newCost; |
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c = connectors.get(iConec); |
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// sprintf(Msg,"pC->idArcoS=%ld, pc-idArcoE=%ld", pC->idArcoS, pC->idArcoE);
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// log(Msg);
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if (c.getEdgeOut() == null) continue; |
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// Miramos la lista de Giros de ese nodo
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bGiroProhibido = false;
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costeGiro = 0;
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for (int idGiro=0; idGiro < getTurnCosts().size(); idGiro++) |
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{
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// Si est? prohibido, a por otro
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GvTurn elGiro = getTurnCosts().get(idGiro); |
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// log("ANTES del if");
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if ((elGiro.getIdArcFrom() == edge.getIdArc()) &&
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(elGiro.getIdArcTo() == c.getEdgeOut().getIdArc())) |
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{
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if (elGiro.getCost() < 0) |
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{
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bGiroProhibido = true;
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} |
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else
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costeGiro = elGiro.getCost(); |
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break; // Salimos del for porque ya hemos encontrado el giro |
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} |
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// log("DESPUES del if");
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} |
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auxCost = newCost + costeGiro; |
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// if (c.getEdgeIn() == edge) // Para evitar los U-turn
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// {
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// if (c.getBestCostIn() > newCost)
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// {
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// c.setBestCostIn(newCost);
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// c.setFrom_link_c(edge.getIdEdge());
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// hayMejora = true;
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// }
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// continue; // Miramos solo los conectores distintos al de entrada
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// }
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// Si est? prohibido, vamos a por otro enlace
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if (bGiroProhibido)
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{
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c.setMustBeRevised(true);
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// sprintf(Msg, "Encontrado giro prohibido en conector %ld del nodo %ld", iConec, idNodo);
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// log(Msg);
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continue;
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} |
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c.setMustBeRevised(false);
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if (c.getBestCostOut() > auxCost)
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{
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hayMejora = true;
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c.setFrom_link_c(edge.getIdEdge()); |
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c.setBestCostOut(auxCost); |
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c.setMustBeRevised(true);
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// sprintf(Msg, "HAY MEJORA: idNodo=%ld, iConec=%ld, idArcoEntrada=%ld, auxCost= %lf", idNodo, iConec, idArcoEntrada, auxCost);
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} |
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} |
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return hayMejora;
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} |
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public boolean reverseFoundBetterPath(GvEdge edge, double newCost) |
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{
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// Si entrando desde ese arco mejoramos el coste de alg?n conector, devolvemos que
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// hay mejora
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// NO QUEREMOS TOCAR EL CONECTOR PROPIO!!!!
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// Y tampoco hay que tener en cuenta los costes de giros para los conectores que toque.
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boolean hayMejora = false; |
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GvConnector c; |
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double auxCost;
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boolean bGiroProhibido;
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double costeGiro;
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// char Msg[200];
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// log("Dentro de existeMejora");
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for (int iConec=0; iConec< connectors.size(); iConec++) |
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{
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// sprintf(Msg,"Conector iConec=%ld de %ld. Capacity=%ld", iConec, Conectores.size(), Conectores.capacity());
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// log(Msg);
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auxCost = newCost; |
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c = connectors.get(iConec); |
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// sprintf(Msg,"pC->idArcoS=%ld, pc-idArcoE=%ld", pC->idArcoS, pC->idArcoE);
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// log(Msg);
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if (c.getEdgeIn() == null) continue; |
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// Miramos la lista de Giros de ese nodo
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bGiroProhibido = false;
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costeGiro = 0;
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for (int idGiro=0; idGiro < getTurnCosts().size(); idGiro++) |
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{
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// Si est? prohibido, a por otro
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GvTurn elGiro = getTurnCosts().get(idGiro); |
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// log("ANTES del if");
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if ((elGiro.getIdArcTo() == edge.getIdArc()) &&
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(elGiro.getIdArcFrom() == c.getEdgeIn().getIdArc())) |
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{
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if (elGiro.getCost() < 0) |
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{
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bGiroProhibido = true;
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} |
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else
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costeGiro = elGiro.getCost(); |
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break; // Salimos del for porque ya hemos encontrado el giro |
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} |
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// log("DESPUES del if");
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} |
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auxCost = newCost + costeGiro; |
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if (c.getEdgeOut() == edge)
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{
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if (c.getBestCostIn() > newCost)
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{
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c.setBestCostIn(newCost); |
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// pC->from_link_c = idArcoEntrada;
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} |
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continue; // Miramos solo los conectores distintos al de entrada |
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} |
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// Si est? prohibido, vamos a por otro enlace
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if (bGiroProhibido)
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{
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c.setMustBeRevised(true);
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// sprintf(Msg, "Encontrado giro prohibido en conector %ld del nodo %ld", iConec, idNodo);
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// log(Msg);
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continue;
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} |
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c.setMustBeRevised(false);
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if (c.getBestCostOut() > auxCost)
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{
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hayMejora = true;
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c.setFrom_link_c(edge.getIdEdge()); |
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c.setBestCostOut(auxCost); |
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c.setMustBeRevised(true);
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// sprintf(Msg, "HAY MEJORA: idNodo=%ld, iConec=%ld, idArcoEntrada=%ld, auxCost= %lf", idNodo, iConec, idArcoEntrada, auxCost);
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} |
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} |
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return hayMejora;
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} |
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public double getBestCost() |
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{
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if (numSoluc != GlobalCounter.getGlobalSolutionNumber())
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return Double.MAX_VALUE; |
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double bestCost = Double.MAX_VALUE; |
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GvConnector c; |
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for (int iConec=0; iConec< connectors.size(); iConec++) |
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{
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c = connectors.get(iConec); |
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if (c.getBestCostOut() < bestCost)
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{
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bestCost = c.getBestCostOut(); |
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} |
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} |
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return bestCost;
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} |
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public double getBestCostIn() |
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{
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if (numSoluc != GlobalCounter.getGlobalSolutionNumber())
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return Double.MAX_VALUE; |
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double bestCost = Double.MAX_VALUE; |
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GvConnector c; |
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for (int iConec=0; iConec< connectors.size(); iConec++) |
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{
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c = connectors.get(iConec); |
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if (c.getBestCostIn() < bestCost)
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{
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bestCost = c.getBestCostIn(); |
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} |
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} |
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return bestCost;
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} |
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public double getBestCostOfDirty() |
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{
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if (numSoluc != GlobalCounter.getGlobalSolutionNumber())
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return Double.MAX_VALUE; |
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double bestCost = Double.MAX_VALUE; |
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GvConnector c; |
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for (int iConec=0; iConec< connectors.size(); iConec++) |
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{
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c = connectors.get(iConec); |
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if ((c.isMustBeRevised()) && (c.getBestCostOut() < bestCost))
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{
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bestCost = c.getBestCostOut(); |
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} |
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} |
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return bestCost;
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} |
| 477 |
|
| 478 |
public void setCostZero() |
| 479 |
{
|
| 480 |
GvConnector c; |
| 481 |
for (int iConec=0; iConec< connectors.size(); iConec++) |
| 482 |
{
|
| 483 |
c = connectors.get(iConec); |
| 484 |
c.setBestCostOut(0);
|
| 485 |
c.setBestCostIn(0);
|
| 486 |
} |
| 487 |
|
| 488 |
// TODO: provisional. QUITAR bestCost como atributo
|
| 489 |
// best_cost = 0;
|
| 490 |
setStimation(0);
|
| 491 |
} |
| 492 |
|
| 493 |
/**
|
| 494 |
* Add an edge out to this node. This function takes care of creating the needed connectors
|
| 495 |
* @param edge
|
| 496 |
*/
|
| 497 |
public void addOutputLink(GvEdge edge) { |
| 498 |
// outputLinks.add(edge);
|
| 499 |
// Create connectors
|
| 500 |
// First, search the connector if it is already created
|
| 501 |
GvConnector c; |
| 502 |
boolean bFound = false; |
| 503 |
GvConnector cFound = null;
|
| 504 |
for (int iConec=0; iConec< connectors.size(); iConec++) |
| 505 |
{
|
| 506 |
c = connectors.get(iConec); |
| 507 |
if ((c.getEdgeIn() != null) && (c.getEdgeIn().getIdArc() == edge.getIdArc())) { |
| 508 |
// Found. This connector has been originated before by the same arc
|
| 509 |
bFound = true;
|
| 510 |
cFound = c; |
| 511 |
break;
|
| 512 |
} |
| 513 |
} |
| 514 |
if (!bFound) {
|
| 515 |
GvConnector newCon = new GvConnector();
|
| 516 |
newCon.setEdgeOut(edge); |
| 517 |
connectors.add(newCon); |
| 518 |
} |
| 519 |
else
|
| 520 |
{
|
| 521 |
cFound.setEdgeOut(edge); |
| 522 |
} |
| 523 |
|
| 524 |
} |
| 525 |
|
| 526 |
/**
|
| 527 |
* Add an input edge to this node. This function takes care of creating the needed connectors
|
| 528 |
* @param edge
|
| 529 |
*/
|
| 530 |
public void addInputLink(GvEdge edge) { |
| 531 |
// inputLinks.add(edge);
|
| 532 |
// First, search the connector if it is already created
|
| 533 |
GvConnector c; |
| 534 |
boolean bFound = false; |
| 535 |
GvConnector cFound = null;
|
| 536 |
for (int iConec=0; iConec< connectors.size(); iConec++) |
| 537 |
{
|
| 538 |
c = connectors.get(iConec); |
| 539 |
if ((c.getEdgeOut() != null) && (c.getEdgeOut().getIdArc() == edge.getIdArc())) { |
| 540 |
// Found. This connector has been originated before by the same arc
|
| 541 |
bFound = true;
|
| 542 |
cFound = c; |
| 543 |
break;
|
| 544 |
} |
| 545 |
} |
| 546 |
if (!bFound) {
|
| 547 |
GvConnector newCon = new GvConnector();
|
| 548 |
newCon.setEdgeIn(edge); |
| 549 |
connectors.add(newCon); |
| 550 |
} |
| 551 |
else
|
| 552 |
{
|
| 553 |
cFound.setEdgeIn(edge); |
| 554 |
} |
| 555 |
|
| 556 |
} |
| 557 |
|
| 558 |
public ArrayList<GvConnector> getConnectors() { |
| 559 |
return connectors;
|
| 560 |
} |
| 561 |
|
| 562 |
/**
|
| 563 |
* Adds turnCost and setNode to turnCost. Useful to clear turncosts
|
| 564 |
* @param turnCost
|
| 565 |
*/
|
| 566 |
public void addTurnCost(GvTurn turnCost) { |
| 567 |
turnCost.setNode(this);
|
| 568 |
turnCosts.add(turnCost); |
| 569 |
|
| 570 |
} |
| 571 |
|
| 572 |
public void removeTurnCosts() { |
| 573 |
turnCosts = new ArrayList<GvTurn>(); |
| 574 |
|
| 575 |
} |
| 576 |
|
| 577 |
public int compareTo(GvNode o) { |
| 578 |
return Double.compare(getStimation(), o.getStimation()); |
| 579 |
} |
| 580 |
|
| 581 |
} |
| 582 |
|
| 583 |
|