svn-gvsig-desktop / trunk / extensions / extGraph / src / org / gvsig / graph / topology / LineSnapGeoprocess.java @ 35010
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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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*/
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package org.gvsig.graph.topology; |
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import java.io.File; |
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import java.util.Map; |
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import com.hardcode.gdbms.driver.exceptions.ReadDriverException; |
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import com.iver.andami.PluginServices; |
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import com.iver.cit.gvsig.fmap.MapContext; |
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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.ShapeFactory; |
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import com.iver.cit.gvsig.fmap.core.v02.FConverter; |
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import com.iver.cit.gvsig.fmap.drivers.DriverIOException; |
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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.drivers.LayerDefinition; |
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import com.iver.cit.gvsig.fmap.drivers.SHPLayerDefinition; |
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import com.iver.cit.gvsig.fmap.edition.IWriter; |
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import com.iver.cit.gvsig.fmap.edition.ShpSchemaManager; |
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import com.iver.cit.gvsig.fmap.edition.writers.shp.ShpWriter; |
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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.FLayers; |
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import com.iver.cit.gvsig.fmap.layers.FLyrVect; |
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import com.iver.cit.gvsig.fmap.layers.ReadableVectorial; |
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import com.iver.cit.gvsig.geoprocess.core.fmap.AbstractGeoprocess; |
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import com.iver.cit.gvsig.geoprocess.core.fmap.DefinitionUtils; |
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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.GeoprocessException; |
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import com.iver.cit.gvsig.geoprocess.core.fmap.XTypes; |
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import com.iver.cit.gvsig.geoprocess.impl.topology.lineclean.fmap.LineCleanVisitor; |
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import com.iver.cit.gvsig.project.documents.view.gui.View; |
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import com.iver.cit.gvsig.util.SnappingCoordinateMap; |
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import com.iver.utiles.swing.threads.AbstractMonitorableTask; |
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import com.iver.utiles.swing.threads.IMonitorableTask; |
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import com.iver.utiles.swing.threads.IPipedTask; |
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import com.vividsolutions.jts.geom.Coordinate; |
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import com.vividsolutions.jts.geom.Geometry; |
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public class LineSnapGeoprocess extends AbstractGeoprocess { |
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/**
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* Schema of the result layer
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*/
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private ILayerDefinition resultLayerDefinition;
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/**
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* flag to only clip selection of input layer
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*/
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private boolean onlyFirstLayerSelection = false; |
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/**
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* flag to mark if must create a layer with the detected
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* pseudonodes
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*/
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private boolean createLyrsWithErrorGeometries = false; |
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/**
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* Processes features (writing them)
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*/
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FeaturePersisterProcessor2 processor; |
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private boolean onlySnapNodes = false; |
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private double tolerance = 0.1; |
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public LineSnapGeoprocess(FLyrVect inputLayer){
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this.firstLayer = inputLayer;
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} |
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public void setParameters(Map params) throws GeoprocessException { |
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Boolean firstLayerSelection = (Boolean) params.get("firstlayerselection"); |
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if (firstLayerSelection != null) |
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this.onlyFirstLayerSelection =
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firstLayerSelection.booleanValue(); |
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Boolean createLyrsWithError = (Boolean) params.get("createlayerswitherrors"); |
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if (createLyrsWithError != null) |
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this.createLyrsWithErrorGeometries =
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createLyrsWithError.booleanValue(); |
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Boolean onlySnapNodes = (Boolean) params.get("onlysnapnodes"); |
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if (onlySnapNodes != null) |
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this.onlySnapNodes =
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onlySnapNodes.booleanValue(); |
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} |
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public void checkPreconditions() throws GeoprocessException { |
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if (firstLayer == null) |
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throw new GeoprocessException("CLEAN: capa de entrada a null"); |
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if (this.writer == null || this.schemaManager == null) { |
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throw new GeoprocessException( |
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"Operacion de CLEAN sin especificar capa de resultados");
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} |
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try {
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if(firstLayer.getSource().getShapeCount() == 0){ |
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throw new GeoprocessException( |
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"Capa de entrada vacia");
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} |
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} catch (ReadDriverException e) {
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throw new GeoprocessException( |
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"Error al verificar si la capa est? vac?a");
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} |
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} |
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public void process() throws GeoprocessException { |
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try {
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createTask().run(); |
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} catch (Exception e) { |
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throw new GeoprocessException("Error al ejecutar el geoproceso", e); |
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} |
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} |
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public ILayerDefinition createLayerDefinition() {
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if (resultLayerDefinition == null) { |
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try {
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resultLayerDefinition = DefinitionUtils. |
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createLayerDefinition(firstLayer); |
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} catch (Exception e) { |
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e.printStackTrace(); |
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} |
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} |
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return resultLayerDefinition;
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} |
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class LineCleanTask extends AbstractMonitorableTask implements IPipedTask{ |
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private SnappingCoordinateMap coordMap;
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private LineCleanTask() {
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setInitialStep(0);
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try {
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if (onlyFirstLayerSelection) {
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int numSelected = firstLayer.getRecordset().getSelection()
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.cardinality(); |
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setFinalStep(numSelected); |
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} else {
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int numShapes = firstLayer.getSource().getShapeCount();
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setFinalStep(numShapes); |
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}// else
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} catch (ReadDriverException e) {
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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setDeterminatedProcess(true);
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setStatusMessage(PluginServices.getText(this,
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"LineClean._Progress_Message"));
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} |
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/**
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* Verifies cancelation events, and return a boolean flag if processes must
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* be stopped for this cancelations events.
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*
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* @param cancel
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* @param va
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* @param visitor
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* @return
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* @throws DriverIOException
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*/
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protected boolean verifyCancelation(ReadableVectorial va) { |
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if (isCanceled()) {
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try {
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va.stop(); |
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} finally {
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return true; |
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} |
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} |
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return false; |
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} |
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public void run() throws Exception { |
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processor = |
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new FeaturePersisterProcessor2(writer);
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FBitSet selection = null;
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coordMap = new SnappingCoordinateMap(tolerance);
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try {
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processor.start(); |
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ReadableVectorial va = firstLayer.getSource(); |
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va.start(); |
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for (int i = 0; i < va.getShapeCount(); i++) {// for each geometry |
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if (verifyCancelation(va)) {
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return;
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} |
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IFeature feat = null;
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if(selection != null){ |
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if (selection.get(i)) {
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reportStep(); |
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feat = va.getFeature(i); |
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feat = processFeature(feat); |
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processor.processFeature(feat); |
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} |
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}else{
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reportStep(); |
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feat = va.getFeature(i); |
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feat = processFeature(feat); |
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} |
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processor.processFeature(feat); |
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}// for
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va.stop(); |
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processor.finish(); |
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} catch (ReadDriverException e) {
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e.printStackTrace(); |
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} |
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} |
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private IFeature processFeature(IFeature feat) {
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IGeometry geom = feat.getGeometry(); |
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Geometry jtsGeom = geom.toJTSGeometry(); |
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Coordinate[] coords = jtsGeom.getCoordinates();
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Coordinate c1 = coords[0];
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Coordinate c2 = coords[coords.length-1];
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if (coordMap.containsKey(c1)) {
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c1 = (Coordinate) coordMap.get(c1); |
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} |
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else
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{
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coordMap.put(c1, c1); |
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} |
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if (coordMap.containsKey(c2)) {
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c2 = (Coordinate) coordMap.get(c2); |
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} |
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else
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{
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coordMap.put(c2, c2); |
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} |
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coords[0] = c1;
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coords[coords.length-1] = c2;
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Geometry newJtsG = jtsGeom.getFactory().createLineString(coords); |
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feat.setGeometry(FConverter.jts_to_igeometry(newJtsG)); |
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return feat;
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} |
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// TODO INTERNACIONALIZAR LOS MENSAJES
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public String getNote() { |
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String cleaningText = PluginServices.getText(this, "Limpiando_lineas"); |
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String of = PluginServices.getText(this, "de"); |
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return cleaningText + " " + getCurrentStep() + " " |
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+ of + " " + getFinishStep();
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} |
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public void cancel() { |
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setCanceled(true);
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LineSnapGeoprocess.this.cancel(); |
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} |
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/* (non-Javadoc)
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* @see com.iver.utiles.swing.threads.IPipedTask#getResult()
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*/
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public Object getResult() { |
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try {
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return LineSnapGeoprocess.this.getResult();
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} catch (GeoprocessException e) {
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return null; |
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} |
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} |
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/* (non-Javadoc)
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* @see com.iver.utiles.swing.threads.IPipedTask#setEntry(java.lang.Object)
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*/
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public void setEntry(Object object) { |
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// TODO Auto-generated method stub
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} |
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/* (non-Javadoc)
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* @see com.iver.utiles.swing.threads.IMonitorableTask#finished()
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*/
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public void finished() { |
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// TODO Auto-generated method stub
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} |
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} |
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public IMonitorableTask createTask() {
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return new LineCleanTask(); |
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} |
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public FLayer getResult() throws GeoprocessException { |
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FLyrVect cleanedLayer = (FLyrVect) createLayerFrom(this.writer);
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return cleanedLayer;
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} |
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public double getTolerance() { |
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return tolerance;
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} |
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public void setTolerance(double tolerance) { |
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this.tolerance = tolerance;
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} |
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} |
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