| gvSIG desktop 1

/*

 * Created on 10-abr-2006

 *

 * gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

/* CVS MESSAGES:

*

* $Id: 

* $Log: 

*/

package org.gvsig.topology.topologyrules;

import java.awt.geom.Rectangle2D;

import org.gvsig.exceptions.BaseException;

import org.gvsig.fmap.core.NewFConverter;

import org.gvsig.topology.ITopologyErrorFix;

import org.gvsig.topology.Messages;

import org.gvsig.topology.Topology;

import org.gvsig.topology.TopologyRuleDefinitionException;

import org.gvsig.topology.errorfixes.DeleteTopologyErrorFix;

import com.iver.cit.gvsig.fmap.core.IFeature;

import com.iver.cit.gvsig.fmap.core.IGeometry;

import com.iver.cit.gvsig.fmap.drivers.IFeatureIterator;

import com.iver.cit.gvsig.fmap.layers.FLyrVect;

import com.vividsolutions.jts.geom.Geometry;

/**

 * Each element of origin layer must cross with at least one element

 * of destination layer.

 * 

 * 

 * @author Alvaro Zabala

 *

 */

public class LyrMustCrossWith extends AbstractSpatialPredicateTwoLyrRule {

        static final String RULE_NAME = Messages.getText("must_cross");

        static {

                DEFAULT_ERROR_SYMBOL.setDescription(RULE_NAME);

                automaticErrorFixes.add(new DeleteTopologyErrorFix());

        }

        public LyrMustCrossWith(Topology topology, 

                         FLyrVect originLyr,

                         FLyrVect destinationLyr){

                super(topology, originLyr, destinationLyr);

        }

        public LyrMustCrossWith(){

                super();

        }

        @Override

        protected boolean acceptsDestinationGeometryType(int shapeType) {

                return true;

        }

        @Override

        protected boolean acceptsOriginGeometryType(int shapeType) {

                return true;

        }

        @Override

        protected void checkWithNeighbourhood(IFeature feature, Rectangle2D extendedBounds, IFeatureIterator neighbourhood) throws BaseException{

                Geometry firstGeometry = NewFConverter.toJtsGeometry(feature.getGeometry());

                while (neighbourhood.hasNext()) {

                        IFeature neighbourFeature = neighbourhood.next();

                        IGeometry geom2 = neighbourFeature.getGeometry();

                        if(acceptsDestinationGeometryType(geom2.getGeometryType())){

                                Rectangle2D rect2 = geom2.getBounds2D();

                                if (extendedBounds.intersects(rect2)) {

                                        Geometry jtsGeom2 = NewFConverter.toJtsGeometry(geom2);

                                        if(checkSpatialPredicate(feature, firstGeometry, 

                                                                                                                neighbourFeature, jtsGeom2 )){

                                                return;

                                        }

                                }//if

                        }//if

                }//while

                //at this point, feature doesnt cover any feature of destination layer

                addTopologyError(createTopologyError(firstGeometry, feature, null));

        }

        @Override

        protected boolean checkSpatialPredicate(IFeature feature,

                        Geometry firstGeometry, IFeature neighbourFeature, Geometry jtsGeom2) {

                return firstGeometry.crosses(jtsGeom2);

        }

        @Override

        public void checkPreconditions() throws TopologyRuleDefinitionException {

        }

        @Override

        public String getName() {

                return RULE_NAME;

        }

        public boolean acceptsDestinationLyr(FLyrVect originLyr) {

                return true;

        }

        public boolean acceptsOriginLyr(FLyrVect originLyr) {

                return true;

        }

        public ITopologyErrorFix getDefaultFix(){

                return automaticErrorFixes.get(0);

        }

}