GSymDiff.java

// GraphTea Project: http://github.com/graphtheorysoftware/GraphTea
// Copyright (C) 2012 Graph Theory Software Foundation: http://GraphTheorySoftware.com
// Copyright (C) 2008 Mathematical Science Department of Sharif University of Technology
// Distributed under the terms of the GNU Lesser General Public License (LGPL): http://www.gnu.org/licenses/

package graphtea.library.algorithms.goperators.product;

import graphtea.graph.graph.GPoint;
import graphtea.graph.graph.GraphModel;
import graphtea.graph.graph.Vertex;
import graphtea.library.BaseVertex;
import graphtea.plugins.graphgenerator.core.PositionGenerators;

import java.awt.*;

//todo: doc needed (rostam)
public class GSymDiff extends GProduct {
    public boolean compare(BaseVertex v1OfFirstG, BaseVertex v2OfFirstG, BaseVertex v1OfSecondG, BaseVertex v2OfSecondG) {
        return (g1.isEdge(v1OfFirstG, v2OfFirstG)
             && !g2.isEdge(v1OfSecondG, v2OfSecondG)) ||
            (!g1.isEdge(v1OfFirstG, v2OfFirstG)
             && g2.isEdge(v1OfSecondG, v2OfSecondG));

    }

    @Override
    public void setPositions(GraphModel g) {
        int n = g.getVerticesCount();
        Point ps[] = PositionGenerators.circle(200, 300, 300, n);
        int count = 0;
        for (Vertex v : g) {
            v.setLocation(new GPoint(ps[count].x, ps[count].y));
            count++;
        }
    }
}