svn-gvsig-desktop / trunk / extensions / extGeoprocessingExtensions / src / com / iver / cit / gvsig / geoprocess / impl / topology / lineclean / fmap / LineCleanVisitor.java @ 33358
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/*
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* Created on 10-oct-2006
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*
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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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/* CVS MESSAGES:
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*
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* $Id: LineCleanVisitor.java 13881 2007-09-19 16:22:04Z jaume $
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* $Log$
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* Revision 1.4 2007-09-19 16:09:14 jaume
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* removed unnecessary imports
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*
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* Revision 1.3 2007/07/12 11:10:24 azabala
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* bug 2617 solved (clean fails with multilinestring geometries)
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*
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* Revision 1.2 2007/03/06 16:48:14 caballero
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* Exceptions
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*
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* Revision 1.1 2006/12/21 17:23:27 azabala
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* *** empty log message ***
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*
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* Revision 1.1 2006/12/04 19:42:23 azabala
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* *** empty log message ***
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*
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* Revision 1.7 2006/11/14 18:34:16 azabala
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* *** empty log message ***
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*
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* Revision 1.6 2006/11/14 18:01:09 azabala
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* removed system.out.println
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*
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* Revision 1.5 2006/11/13 20:41:08 azabala
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* *** empty log message ***
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*
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* Revision 1.4 2006/10/19 16:06:48 azabala
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* *** empty log message ***
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*
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* Revision 1.3 2006/10/17 18:27:24 azabala
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* *** empty log message ***
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*
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* Revision 1.1 2006/10/10 18:50:17 azabala
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* First version in CVS
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*
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*
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*/
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package com.iver.cit.gvsig.geoprocess.impl.topology.lineclean.fmap; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.Collections; |
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import java.util.Comparator; |
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import java.util.Iterator; |
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import com.hardcode.gdbms.driver.exceptions.ReadDriverException; |
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import com.hardcode.gdbms.engine.values.Value; |
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import com.hardcode.gdbms.engine.values.ValueFactory; |
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import com.iver.cit.gvsig.exceptions.visitors.ProcessVisitorException; |
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import com.iver.cit.gvsig.exceptions.visitors.StartVisitorException; |
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import com.iver.cit.gvsig.exceptions.visitors.StopWriterVisitorException; |
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import com.iver.cit.gvsig.exceptions.visitors.VisitorException; |
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import com.iver.cit.gvsig.fmap.core.IFeature; |
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import com.iver.cit.gvsig.fmap.core.IGeometry; |
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import com.iver.cit.gvsig.fmap.core.v02.FConverter; |
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import com.iver.cit.gvsig.fmap.drivers.FieldDescription; |
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import com.iver.cit.gvsig.fmap.drivers.ILayerDefinition; |
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import com.iver.cit.gvsig.fmap.layers.FBitSet; |
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import com.iver.cit.gvsig.fmap.layers.FLayer; |
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import com.iver.cit.gvsig.fmap.layers.FLyrVect; |
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import com.iver.cit.gvsig.fmap.layers.SelectableDataSource; |
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import com.iver.cit.gvsig.fmap.layers.layerOperations.AlphanumericData; |
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import com.iver.cit.gvsig.fmap.layers.layerOperations.VectorialData; |
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import com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor; |
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import com.iver.cit.gvsig.fmap.operations.strategies.Strategy; |
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import com.iver.cit.gvsig.fmap.operations.strategies.StrategyManager; |
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import com.iver.cit.gvsig.geoprocess.core.fmap.FeatureFactory; |
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import com.iver.cit.gvsig.geoprocess.core.fmap.FeaturePersisterProcessor2; |
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import com.iver.cit.gvsig.geoprocess.core.fmap.FeatureProcessor; |
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import com.iver.cit.gvsig.geoprocess.core.fmap.XTypes; |
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import com.iver.cit.gvsig.util.SnappingCoordinateMap; |
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import com.vividsolutions.jts.geom.Coordinate; |
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import com.vividsolutions.jts.geom.Geometry; |
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import com.vividsolutions.jts.geom.GeometryCollection; |
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import com.vividsolutions.jts.geom.GeometryFactory; |
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import com.vividsolutions.jts.geom.LineString; |
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import com.vividsolutions.jts.geom.MultiLineString; |
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import com.vividsolutions.jts.geom.MultiPoint; |
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import com.vividsolutions.jts.geom.Point; |
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import com.vividsolutions.jts.geomgraph.Node; |
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import com.vividsolutions.jts.geomgraph.NodeFactory; |
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import com.vividsolutions.jts.geomgraph.SnappingNodeMap; |
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import com.vividsolutions.jts.linearref.LengthIndexedLine; |
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import com.vividsolutions.jts.linearref.LinearLocation; |
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import com.vividsolutions.jts.linearref.LocationIndexedLine; |
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import com.vividsolutions.jts.operation.overlay.SnappingOverlayOperation; |
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/**
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* <p>
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* This visitor operates with features whose geometries are lines. <br>
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* For each visited feature, it looks for features in its proximity (spatial
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* query). If these features hasnt been processed, it intersects the visited
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* feature with all of the neighbour features. If intersection points are not
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* nodes (end points), it ignores them. split the
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* </p>
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*
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* @author azabala
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*/
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public class LineCleanVisitor implements FeatureVisitor { |
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/**
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* Recordset of the layer we are working with
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*/
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protected SelectableDataSource recordset;
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/**
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* Layer which we are cleaning
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*/
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protected FLyrVect layerToClean;
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/**
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* marks if we are going to clean only layer selection
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*/
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protected boolean cleanOnlySelection; |
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/*
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* TODO Meter esto en preferencias
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*/
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public final static double DEFAULT_SNAP = 0.1; |
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protected double snapTolerance = DEFAULT_SNAP; |
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/**
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* It marks all processed features (to ignore them in future intersections)
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*/
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protected FBitSet processedFeatures;
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/**
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* Strategy of the layer we are working with.
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*/
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protected Strategy strategy;
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/**
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* Saves features resulting of cleaning process
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*/
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protected FeatureProcessor featureProcessor;
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protected ILayerDefinition layerDefinition;
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/**
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* Saves pseudonodes found
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*/
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protected FeatureProcessor intersectProcessor;
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protected ILayerDefinition intersectDefinition;
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/**
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* Counter of new features
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*/
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int fid = 0; |
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/**
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* It caches all written pseudonodes, to avoid writing the same pseudonode
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* twice.
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*
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*/
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SnappingCoordinateMap snapCoordMap; |
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/**
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* Constructor.
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*
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* @param processor
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* @param intersectsProcessor
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* @param cleanOnlySelection
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* @param layerDefinition
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* @param intersectDefinition
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* @param firstLayer
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* @param source
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* @param snapCoordMap
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*/
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public LineCleanVisitor(FeatureProcessor processor,
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FeaturePersisterProcessor2 intersectsProcessor, |
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boolean cleanOnlySelection, ILayerDefinition layerDefinition,
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ILayerDefinition intersectDefinition, FLyrVect firstLayer, |
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SelectableDataSource source, SnappingCoordinateMap snapCoordMap) {
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this.featureProcessor = processor;
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this.cleanOnlySelection = cleanOnlySelection;
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processedFeatures = new FBitSet();
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this.layerDefinition = layerDefinition;
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this.intersectProcessor = intersectsProcessor;
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this.intersectDefinition = intersectDefinition;
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this.layerToClean = firstLayer;
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this.recordset = source;
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this.strategy = StrategyManager.getStrategy(layerToClean);
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this.snapCoordMap = snapCoordMap;
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} |
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public void setLayerDefinition(ILayerDefinition layerDefinition) { |
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this.layerDefinition = layerDefinition;
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} |
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private boolean checkForLineGeometry(Geometry geometry) { |
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if (geometry instanceof LineString) |
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return true; |
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if (geometry instanceof MultiLineString) |
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return true; |
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if (geometry instanceof GeometryCollection) { |
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GeometryCollection col = (GeometryCollection) geometry; |
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for (int i = 0; i < col.getNumGeometries(); i++) { |
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if (!checkForLineGeometry(col.getGeometryN(i)))
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return false; |
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} |
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return true; |
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} |
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return false; |
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} |
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public void visit(IGeometry g, final int index) throws VisitorException, |
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StopWriterVisitorException, ProcessVisitorException {
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// first, we check it isnt a null geometry and the geometry type
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// is correct
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if (g == null) |
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return;
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int geometryType = g.getGeometryType();
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if (geometryType != XTypes.ARC && geometryType != XTypes.LINE
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&& geometryType != XTypes.MULTI) |
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return;
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// after that, if we are going to clean only selected features, we
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// check if this feature is selected
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if (cleanOnlySelection) {
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try {
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if (!layerToClean.getRecordset().getSelection().get(index))
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return;
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} catch (ReadDriverException e) {
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throw new ProcessVisitorException(recordset.getName(), e, |
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"Error verificando seleccion en CLEAN");
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} |
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}// if cleanOnly
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final Geometry jtsGeo = g.toJTSGeometry();
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// we check if jts geometry is a line (or a line collection)
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if (!checkForLineGeometry(jtsGeo))
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return;
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final SnappingNodeMap nodes = new SnappingNodeMap(new NodeFactory(), |
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snapTolerance); |
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/*
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* Se nos plantea una problematica. Tenemos dos features: A y B, y he
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* calculado la interseccion de A y B. Ahora, hay dos alternativas: -a)
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* nunca mas calcular esta intersecci?n, pero almacenar su resultado en
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* SnappingNodeMap. As?, en una segunda pasada, con todos los "Nodos"
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* calculados, podr?amos fragmentar las lineas de forma individual.
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* PROBLEMA: SnappingNodeMap ir?a creciendo, almacenando todos los nodos
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* de una capa....(si se apoya sobre un IndexedShpDriver, no tendr?a por
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* qu?)
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*
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*
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* -b) Calcular la intersecci?n en los dos sentidos: A int B, y luego al
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* procesar B, B int A. En este caso, pasamos ol?mpicamente del bitset
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*
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* De momento, por simplicidad, seguimos la alternativa -b)
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*/
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final boolean onlySelection = cleanOnlySelection; |
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try {
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strategy.process(new FeatureVisitor() {
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SnappingOverlayOperation overlayOp = null;
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/**
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* From a given geometry, it returns its nodes (coordinate for a
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* point, extreme coordinates for a line, first coordinate for a
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* polygon)
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*/
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private Coordinate[] getNodesFor(Geometry processedGeometry) { |
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Coordinate[] geomNodes = null; |
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if (processedGeometry instanceof LineString) { |
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LineString line = (LineString) processedGeometry; |
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geomNodes = new Coordinate[2]; |
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geomNodes[0] = line.getCoordinateN(0); |
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geomNodes[1] = line
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.getCoordinateN(line.getNumPoints() - 1);
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} else if (processedGeometry instanceof MultiLineString) { |
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MultiLineString lines = (MultiLineString) processedGeometry; |
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int numLines = lines.getNumGeometries();
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geomNodes = new Coordinate[2 * numLines]; |
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int index = 0; |
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for (int i = 0; i < numLines; i++) { |
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LineString line = (LineString) lines |
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.getGeometryN(i); |
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geomNodes[index] = line.getCoordinateN(0);
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index++; |
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geomNodes[index] = line.getCoordinateN(line |
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.getNumPoints() - 1);
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index++; |
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} |
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} else if (processedGeometry instanceof GeometryCollection) { |
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GeometryCollection col = (GeometryCollection) processedGeometry; |
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ArrayList coordinates = new ArrayList(); |
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for (int i = 0; i < col.getNumGeometries(); i++) { |
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Geometry geom = col.getGeometryN(i); |
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Coordinate[] newNodes = getNodesFor(geom);
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coordinates.addAll(Arrays.asList(newNodes));
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} |
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} |
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// else {
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// System.out
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// .println("Este proceso solo debe trabajar con lineas");
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// System.out.println(processedGeometry.getGeometryType());
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// }
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return geomNodes;
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} |
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/**
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* Checks if a coordinate is on a node of a given set of nodes
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*
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* @param coord
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* @param nodes
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* @return
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*/
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private boolean checkIsNode(Coordinate coord, Coordinate[] nodes) { |
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for (int i = 0; i < nodes.length; i++) { |
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if (coord.distance(nodes[i]) <= snapTolerance)
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return true; |
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} |
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return false; |
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} |
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/**
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* From a given geometry, and the intersection of this geometry
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* with another geometry, it creates a new node with these
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* intersections if its points are not coincident with the nodes
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* of the original goemetry.
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*
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* @throws VisitorException
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*
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*/
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private void processIntersections( |
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com.vividsolutions.jts.geomgraph.SnappingNodeMap nodes, |
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Geometry processedGeometry, Geometry intersections, |
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int fid1, int fid2) throws VisitorException { |
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Coordinate[] geomNodes = getNodesFor(processedGeometry);
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if (intersections instanceof Point) { |
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Point p = (Point) intersections; |
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Coordinate coord = p.getCoordinate(); |
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if (!checkIsNode(coord, geomNodes)) {
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nodes.addNode(coord); |
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/*
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* We are computing intersections twice: A
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* intersection B and B intersection A. This is
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* simpler than manage caches. With this logic, we
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* avoid to write the same pseudonode twice
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*
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*/
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if (snapCoordMap.containsKey(coord))
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return;
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else {
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snapCoordMap.put(coord, coord); |
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IFeature feature = createIntersectFeature( |
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coord, fid1, fid2); |
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intersectProcessor.processFeature(feature); |
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} |
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} |
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} else if (intersections instanceof MultiPoint) { |
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MultiPoint points = (MultiPoint) intersections; |
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for (int i = 0; i < points.getNumGeometries(); i++) { |
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Coordinate coord = ((Point) points.getGeometryN(i))
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.getCoordinate(); |
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if (!checkIsNode(coord, geomNodes)) {
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nodes.addNode(coord); |
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if (snapCoordMap.containsKey(coord))
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return;
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else {
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snapCoordMap.put(coord, coord); |
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IFeature feature = createIntersectFeature( |
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coord, fid1, fid2); |
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intersectProcessor.processFeature(feature); |
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} |
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} |
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} |
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} else if (intersections instanceof LineString) { |
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LineString line = (LineString) intersections; |
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int numPoints = line.getCoordinates().length;
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Coordinate coord1 = line.getCoordinateN(0);
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Coordinate coord2 = line.getCoordinateN(numPoints - 1);
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if (!checkIsNode(coord1, geomNodes)) {
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nodes.addNode(coord1); |
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if (snapCoordMap.containsKey(coord1))
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return;
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else {
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snapCoordMap.put(coord1, coord1); |
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IFeature feature = createIntersectFeature( |
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coord1, fid1, fid2); |
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intersectProcessor.processFeature(feature); |
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} |
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} |
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if (!checkIsNode(coord2, geomNodes)) {
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nodes.addNode(coord2); |
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if (snapCoordMap.containsKey(coord2))
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return;
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else {
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snapCoordMap.put(coord2, coord2); |
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IFeature feature = createIntersectFeature( |
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coord2, fid1, fid2); |
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intersectProcessor.processFeature(feature); |
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} |
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} |
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} else if (intersections instanceof GeometryCollection) { |
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GeometryCollection col = (GeometryCollection) intersections; |
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for (int i = 0; i < col.getNumGeometries(); i++) { |
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// El tema est? en que aqu? el calculo de los nodos
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// de la geometria intersectada se repite cada vez
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// revisar, pues MultiLineString puede ser un
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// resultado habitual
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processIntersections(nodes, processedGeometry, col |
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.getGeometryN(i), fid1, fid2); |
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} |
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} |
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// else if (intersections instanceof Polygon) {
|
| 460 |
// System.out
|
| 461 |
// .println("Un poligono interseccion de 2 lineas???");
|
| 462 |
// }// else
|
| 463 |
|
| 464 |
} |
| 465 |
|
| 466 |
public void visit(IGeometry g2, int indexOverlay) |
| 467 |
throws VisitorException, StopWriterVisitorException,
|
| 468 |
ProcessVisitorException {
|
| 469 |
|
| 470 |
if (g2 == null) |
| 471 |
return;
|
| 472 |
|
| 473 |
if (index == indexOverlay)
|
| 474 |
return;
|
| 475 |
|
| 476 |
if (onlySelection) {
|
| 477 |
try {
|
| 478 |
if (!layerToClean.getRecordset().getSelection()
|
| 479 |
.get(indexOverlay)) |
| 480 |
return;
|
| 481 |
} catch (ReadDriverException e) {
|
| 482 |
throw new ProcessVisitorException(recordset |
| 483 |
.getName(), e, |
| 484 |
"Error verificando seleccion en clean");
|
| 485 |
}// geometry g is not selected
|
| 486 |
}// if onlySelection
|
| 487 |
|
| 488 |
int geometryType = g2.getGeometryType();
|
| 489 |
if (geometryType != XTypes.ARC
|
| 490 |
&& geometryType != XTypes.LINE |
| 491 |
&& geometryType != XTypes.MULTI) |
| 492 |
return;
|
| 493 |
|
| 494 |
/*
|
| 495 |
* TODO De momento no vamos a tener en cuenta que la
|
| 496 |
* interseccion ya ha sido calculada... (Ver comentario al
|
| 497 |
* instanciar SnappingNodeMap) // ya ha sido tratado
|
| 498 |
* if(processedFeatures.get(indexOverlay)) return;
|
| 499 |
*/
|
| 500 |
Geometry jtsGeo2 = g2.toJTSGeometry(); |
| 501 |
if (!checkForLineGeometry(jtsGeo2))
|
| 502 |
return;
|
| 503 |
|
| 504 |
if (overlayOp == null) |
| 505 |
overlayOp = new SnappingOverlayOperation(jtsGeo,
|
| 506 |
jtsGeo2, snapTolerance); |
| 507 |
else {
|
| 508 |
overlayOp.setSecondGeometry(jtsGeo2); |
| 509 |
} |
| 510 |
|
| 511 |
Geometry intersections = overlayOp |
| 512 |
.getResultGeometry(SnappingOverlayOperation.INTERSECTION); |
| 513 |
|
| 514 |
processIntersections(nodes, jtsGeo, intersections, index, |
| 515 |
indexOverlay); |
| 516 |
|
| 517 |
// IFeature cleanedFeature;
|
| 518 |
// try {
|
| 519 |
// cleanedFeature = createFeature(newGeoJts,
|
| 520 |
// index, indexOverlay);
|
| 521 |
// } catch (DriverException e) {
|
| 522 |
// throw new VisitException(
|
| 523 |
// "Error al crear el feature resultante del CLEAN");
|
| 524 |
// }
|
| 525 |
// featureProcessor.processFeature(cleanedFeature);
|
| 526 |
|
| 527 |
} |
| 528 |
|
| 529 |
public String getProcessDescription() { |
| 530 |
return "Computing intersections of a polygon with its adjacents"; |
| 531 |
} |
| 532 |
|
| 533 |
public void stop(FLayer layer) |
| 534 |
throws StopWriterVisitorException, VisitorException {
|
| 535 |
} |
| 536 |
|
| 537 |
public boolean start(FLayer layer) throws StartVisitorException { |
| 538 |
return true; |
| 539 |
} |
| 540 |
}, g.getBounds2D()); |
| 541 |
// At this point, nodes variable (SnappingNodeMap)
|
| 542 |
// has all intersections of the visited feature with the rest of
|
| 543 |
// features of the layer
|
| 544 |
|
| 545 |
// It computes linear distance of a point on the given jtsGeo linear
|
| 546 |
// geometry
|
| 547 |
boolean rightGeometry = true; |
| 548 |
if (nodes.values().size() > 0) { |
| 549 |
|
| 550 |
LengthIndexedLine lengthLine = new LengthIndexedLine(jtsGeo);
|
| 551 |
Iterator nodesIt = nodes.iterator();
|
| 552 |
ArrayList nodeIntersections = new ArrayList(); |
| 553 |
while (nodesIt.hasNext()) {
|
| 554 |
Node node = (Node) nodesIt.next(); |
| 555 |
Coordinate coord = node.getCoordinate(); |
| 556 |
double lengthOfNode = lengthLine.indexOf(coord);
|
| 557 |
LineIntersection inters = new LineIntersection();
|
| 558 |
inters.coordinate = coord; |
| 559 |
inters.lenght = lengthOfNode; |
| 560 |
nodeIntersections.add(inters); |
| 561 |
} |
| 562 |
|
| 563 |
if (nodeIntersections.size() > 0) { |
| 564 |
// We sort the intersections by distance along the line
|
| 565 |
// (dynamic
|
| 566 |
// segmentation)
|
| 567 |
rightGeometry = false;
|
| 568 |
Collections.sort(nodeIntersections, new Comparator() { |
| 569 |
public int compare(Object arg0, Object arg1) { |
| 570 |
LineIntersection l1 = (LineIntersection) arg0; |
| 571 |
LineIntersection l2 = (LineIntersection) arg1; |
| 572 |
if (l1.lenght > l2.lenght)
|
| 573 |
return 1; |
| 574 |
else if (l1.lenght < l2.lenght) |
| 575 |
return -1; |
| 576 |
else
|
| 577 |
return 0; |
| 578 |
} |
| 579 |
}); |
| 580 |
|
| 581 |
LinearLocation lastLocation = null;
|
| 582 |
LineIntersection lastIntersection = null;
|
| 583 |
LocationIndexedLine indexedLine = new LocationIndexedLine(
|
| 584 |
jtsGeo); |
| 585 |
for (int i = 0; i < nodeIntersections.size(); i++) { |
| 586 |
Geometry solution = null;
|
| 587 |
LineIntersection li = (LineIntersection) nodeIntersections |
| 588 |
.get(i); |
| 589 |
|
| 590 |
LinearLocation location = indexedLine |
| 591 |
.indexOf(li.coordinate);// es posible que esto
|
| 592 |
// est? mal por no
|
| 593 |
// pasarle una longitud.
|
| 594 |
// REVISAR
|
| 595 |
if (lastLocation == null) { |
| 596 |
LinearLocation from = new LinearLocation(0, 0d); |
| 597 |
|
| 598 |
// solution = splitLineString(jtsGeo, from, location,
|
| 599 |
// null, li);
|
| 600 |
//
|
| 601 |
|
| 602 |
solution = indexedLine.extractLine(from, location); |
| 603 |
|
| 604 |
|
| 605 |
lastLocation = location; |
| 606 |
lastIntersection = li; |
| 607 |
/*
|
| 608 |
* Construimos una linea desde el primer punto hasta
|
| 609 |
* el punto contenido en LineIntersection, con todos
|
| 610 |
* los puntos intermedios de la linea.
|
| 611 |
*
|
| 612 |
*
|
| 613 |
*
|
| 614 |
*/
|
| 615 |
} else {
|
| 616 |
// Construimos una linea entre lastIntersection y la
|
| 617 |
// intersection
|
| 618 |
// actual
|
| 619 |
LinearLocation locationFrom = lastLocation; |
| 620 |
|
| 621 |
// solution = splitLineString(jtsGeo, locationFrom,
|
| 622 |
// location, lastIntersection, li);
|
| 623 |
|
| 624 |
solution = indexedLine.extractLine(locationFrom, location); |
| 625 |
lastLocation = location; |
| 626 |
lastIntersection = li; |
| 627 |
|
| 628 |
} |
| 629 |
|
| 630 |
IFeature feature = createFeature(solution, index); |
| 631 |
featureProcessor.processFeature(feature); |
| 632 |
// TODO Podriamos guardar los puntos de interseccion
|
| 633 |
// para
|
| 634 |
// mostrar al usuario que puntos eran pseudonodos
|
| 635 |
}// for
|
| 636 |
|
| 637 |
// a?adimos el ultimo segmento
|
| 638 |
// Coordinate[] geomCoords = jtsGeo.getCoordinates();
|
| 639 |
// ArrayList coordinates = new ArrayList();
|
| 640 |
// coordinates.add(lastIntersection.coordinate);
|
| 641 |
// int startIndex = lastLocation.getSegmentIndex() + 1;
|
| 642 |
// for (int i = startIndex; i < geomCoords.length; i++) {
|
| 643 |
// coordinates.add(geomCoords[i]);
|
| 644 |
// }
|
| 645 |
// Coordinate[] solutionCoords = new Coordinate[coordinates
|
| 646 |
// .size()];
|
| 647 |
// coordinates.toArray(solutionCoords);
|
| 648 |
// IFeature lastFeature = createFeature(new GeometryFactory()
|
| 649 |
// .createLineString(solutionCoords), index);
|
| 650 |
LinearLocation endLocation = new LinearLocation();
|
| 651 |
endLocation.setToEnd(jtsGeo); |
| 652 |
Geometry geo = indexedLine.extractLine(lastLocation, endLocation); |
| 653 |
IFeature lastFeature = createFeature(geo, index); |
| 654 |
featureProcessor.processFeature(lastFeature); |
| 655 |
|
| 656 |
} |
| 657 |
} |
| 658 |
if(rightGeometry){
|
| 659 |
IFeature feature = createFeature(g, index); |
| 660 |
featureProcessor.processFeature(feature); |
| 661 |
} |
| 662 |
|
| 663 |
|
| 664 |
} catch (ReadDriverException e) {
|
| 665 |
throw new ProcessVisitorException(recordset.getName(), e, |
| 666 |
"Error buscando los overlays que intersectan con un feature");
|
| 667 |
} |
| 668 |
} |
| 669 |
|
| 670 |
|
| 671 |
|
| 672 |
|
| 673 |
|
| 674 |
|
| 675 |
|
| 676 |
//Dada una linea, una localizacion de partida (from), una localizaci?n de llegada (to), y dos puntos de interseccion (from) devuelve la linea entre from y to
|
| 677 |
private Geometry splitLineString(Geometry linearGeometry,
|
| 678 |
LinearLocation from, LinearLocation to, LineIntersection fromInt, |
| 679 |
LineIntersection toInt) {
|
| 680 |
Coordinate[] geomCoords = linearGeometry.getCoordinates();
|
| 681 |
ArrayList coordinates = new ArrayList(); |
| 682 |
if (fromInt != null) |
| 683 |
coordinates.add(fromInt.coordinate); |
| 684 |
int startIndex = from.getSegmentIndex();
|
| 685 |
/*
|
| 686 |
* segmentIndex siempre referencia al punto inmediatamente anterior del
|
| 687 |
* lineString. Nos interesa sumar 1, a no ser que sea el primer punto
|
| 688 |
* del linestring
|
| 689 |
*/
|
| 690 |
if (startIndex != 0) |
| 691 |
startIndex++; |
| 692 |
|
| 693 |
for (int i = startIndex; i <= to.getSegmentIndex(); i++) { |
| 694 |
coordinates.add(geomCoords[i]); |
| 695 |
} |
| 696 |
coordinates.add(toInt.coordinate); |
| 697 |
Coordinate[] solutionCoords = new Coordinate[coordinates.size()]; |
| 698 |
coordinates.toArray(solutionCoords); |
| 699 |
return new GeometryFactory().createLineString(solutionCoords); |
| 700 |
|
| 701 |
} |
| 702 |
|
| 703 |
class LineIntersection { |
| 704 |
Coordinate coordinate; |
| 705 |
|
| 706 |
double lenght;
|
| 707 |
} |
| 708 |
|
| 709 |
public String getProcessDescription() { |
| 710 |
return "Cleaning lines of a vectorial line layer"; |
| 711 |
} |
| 712 |
|
| 713 |
public void stop(FLayer layer) throws StopWriterVisitorException, |
| 714 |
VisitorException {
|
| 715 |
this.featureProcessor.finish();
|
| 716 |
this.intersectProcessor.finish();
|
| 717 |
} |
| 718 |
|
| 719 |
public boolean start(FLayer layer) throws StartVisitorException { |
| 720 |
if (layer instanceof AlphanumericData && layer instanceof VectorialData) { |
| 721 |
try {
|
| 722 |
layerToClean = (FLyrVect) layer; |
| 723 |
recordset = ((AlphanumericData) layer).getRecordset(); |
| 724 |
strategy = StrategyManager.getStrategy(layerToClean); |
| 725 |
featureProcessor.start(); |
| 726 |
intersectProcessor.start(); |
| 727 |
} catch (ReadDriverException e) {
|
| 728 |
return false; |
| 729 |
} |
| 730 |
return true; |
| 731 |
} |
| 732 |
return false; |
| 733 |
} |
| 734 |
|
| 735 |
private IFeature createFeature(Geometry jtsGeometry, int firstLayerIndex) |
| 736 |
throws ReadDriverException {
|
| 737 |
IFeature solution = null;
|
| 738 |
IGeometry cleanedGeometry = FConverter.jts_to_igeometry(jtsGeometry); |
| 739 |
FieldDescription[] fields = layerDefinition.getFieldsDesc();
|
| 740 |
int numFields = fields.length;
|
| 741 |
Value[] featureAttr = new Value[fields.length]; |
| 742 |
for (int indexField = 0; indexField < numFields; indexField++) { |
| 743 |
// for each field of firstRs
|
| 744 |
String fieldName = recordset.getFieldName(indexField);
|
| 745 |
for (int j = 0; j < fields.length; j++) { |
| 746 |
if (fieldName.equalsIgnoreCase(fields[j].getFieldName())) {
|
| 747 |
featureAttr[j] = recordset.getFieldValue(firstLayerIndex, |
| 748 |
indexField); |
| 749 |
break;
|
| 750 |
}// if
|
| 751 |
}// for
|
| 752 |
}// for
|
| 753 |
// now we put null values
|
| 754 |
for (int i = 0; i < featureAttr.length; i++) { |
| 755 |
if (featureAttr[i] == null) |
| 756 |
featureAttr[i] = ValueFactory.createNullValue(); |
| 757 |
} |
| 758 |
solution = FeatureFactory.createFeature(featureAttr, cleanedGeometry); |
| 759 |
return solution;
|
| 760 |
} |
| 761 |
|
| 762 |
private IFeature createIntersectFeature(Coordinate coord, int fid1, int fid2) { |
| 763 |
IFeature solution = null;
|
| 764 |
Point point = FConverter.geomFactory.createPoint(coord);
|
| 765 |
IGeometry cleanedGeometry = FConverter.jts_to_igeometry(point); |
| 766 |
Value[] values = new Value[2]; |
| 767 |
values[0] = ValueFactory.createValue(fid1);
|
| 768 |
values[1] = ValueFactory.createValue(fid2);
|
| 769 |
solution = FeatureFactory.createFeature(values, cleanedGeometry); |
| 770 |
return solution;
|
| 771 |
} |
| 772 |
|
| 773 |
private IFeature createFeature(IGeometry g, int firstLayerIndex) |
| 774 |
throws ReadDriverException {
|
| 775 |
IFeature solution = null;
|
| 776 |
FieldDescription[] fields = layerDefinition.getFieldsDesc();
|
| 777 |
int numFields = fields.length;
|
| 778 |
Value[] featureAttr = new Value[fields.length]; |
| 779 |
for (int indexField = 0; indexField < numFields; indexField++) { |
| 780 |
// for each field of firstRs
|
| 781 |
String fieldName = recordset.getFieldName(indexField);
|
| 782 |
for (int j = 0; j < fields.length; j++) { |
| 783 |
if (fieldName.equalsIgnoreCase(fields[j].getFieldName())) {
|
| 784 |
featureAttr[j] = recordset.getFieldValue(firstLayerIndex, |
| 785 |
indexField); |
| 786 |
break;
|
| 787 |
}// if
|
| 788 |
}// for
|
| 789 |
}// for
|
| 790 |
// now we put null values
|
| 791 |
for (int i = 0; i < featureAttr.length; i++) { |
| 792 |
if (featureAttr[i] == null) |
| 793 |
featureAttr[i] = ValueFactory.createNullValue(); |
| 794 |
} |
| 795 |
solution = FeatureFactory.createFeature(featureAttr, g); |
| 796 |
return solution;
|
| 797 |
} |
| 798 |
|
| 799 |
// public static void main(String[] args) {
|
| 800 |
// DriverManager dm = new DriverManager();
|
| 801 |
// dm.setValidation(new DriverValidation() {
|
| 802 |
// public boolean validate(Driver d) {
|
| 803 |
// return ((d instanceof ObjectDriver)
|
| 804 |
// || (d instanceof FileDriver) || (d instanceof DBDriver));
|
| 805 |
// }
|
| 806 |
// });
|
| 807 |
// dm.loadDrivers(new File(
|
| 808 |
// "../_fwAndami/gvSIG/extensiones/com.iver.cit.gvsig/drivers"));
|
| 809 |
// LayerFactory
|
| 810 |
// .setDriversPath("../_fwAndami/gvSIG/extensiones/com.iver.cit.gvsig/drivers");
|
| 811 |
//
|
| 812 |
// // Setup del factory de DataSources
|
| 813 |
// DataSourceFactory dsf = LayerFactory.getDataSourceFactory();
|
| 814 |
// dsf.setDriverManager(dm);
|
| 815 |
//
|
| 816 |
// // Setup de las tablas
|
| 817 |
// // dsf.addFileDataSource("gdbms dbf driver", "nodes", "c:/nodes.dbf");
|
| 818 |
// // dsf.addFileDataSource("gdbms dbf driver", "edges", "c:/edges.dbf");
|
| 819 |
//
|
| 820 |
// IProjection prj = CRSFactory.getCRS("EPSG:23030");
|
| 821 |
// File shpFile = new File("C:/JUMP/datos/cauces_gv.shp");
|
| 822 |
// try {
|
| 823 |
// FLyrVect lyr = (FLyrVect) LayerFactory.createLayer("Ejes",
|
| 824 |
// "gvSIG shp driver", shpFile, prj);
|
| 825 |
// System.out.println(lyr.getSource().getShapeCount());
|
| 826 |
//
|
| 827 |
// LayerDefinition definition = new LayerDefinition();
|
| 828 |
// FieldDescription cauNom = new FieldDescription();
|
| 829 |
// cauNom.setFieldName("CAUNOM");
|
| 830 |
// cauNom.setFieldType(XTypes.CHAR);
|
| 831 |
// cauNom.setFieldLength(10);
|
| 832 |
// cauNom.setFieldDecimalCount(0);
|
| 833 |
// definition.setFieldsDesc(new FieldDescription[]{cauNom});
|
| 834 |
// definition.setShapeType(XTypes.LINE);
|
| 835 |
//
|
| 836 |
//
|
| 837 |
//
|
| 838 |
//
|
| 839 |
// // LineCleanVisitor visitor = new LineCleanVisitor(
|
| 840 |
// // new FeatureProcessor() {
|
| 841 |
// //
|
| 842 |
// // public void processFeature(IRow feature) {
|
| 843 |
// // // TODO Auto-generated method stub
|
| 844 |
// //
|
| 845 |
// // }
|
| 846 |
// //
|
| 847 |
// // public void finish() {
|
| 848 |
// // // TODO Auto-generated method stub
|
| 849 |
// //
|
| 850 |
// // }
|
| 851 |
// //
|
| 852 |
// // public void start() throws EditionException {
|
| 853 |
// // // TODO Auto-generated method stub
|
| 854 |
// //
|
| 855 |
// // }
|
| 856 |
// // }, false, definition);
|
| 857 |
// Strategy str = StrategyManager.getStrategy(lyr);
|
| 858 |
// // str.process(visitor);
|
| 859 |
//
|
| 860 |
// // } catch (com.iver.cit.gvsig.fmap.DriverException e) {
|
| 861 |
// // // TODO Auto-generated catch block
|
| 862 |
// // e.printStackTrace();
|
| 863 |
// // } catch (DriverIOException e) {
|
| 864 |
// // // TODO Auto-generated catch block
|
| 865 |
// // e.printStackTrace();
|
| 866 |
// // } catch (VisitException e) {
|
| 867 |
// // // TODO Auto-generated catch block
|
| 868 |
// // e.printStackTrace();
|
| 869 |
// // }
|
| 870 |
// }
|
| 871 |
|
| 872 |
} |