gvsig-geoprocess / org.gvsig.geoprocess / trunk / org.gvsig.geoprocess / org.gvsig.geoprocess.algorithm / org.gvsig.geoprocess.algorithm.union / src / main / java / org / gvsig / geoprocess / algorithm / union / UnionAlgorithm.java @ 326
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2012 gvSIG Association.
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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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.geoprocess.algorithm.union; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.exception.ReadException; |
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import org.gvsig.fmap.dal.feature.FeatureSet; |
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import org.gvsig.fmap.dal.feature.FeatureStore; |
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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.geoprocess.algorithm.base.core.GeometryOperation; |
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import org.gvsig.geoprocess.algorithm.base.core.ScalableUnionOperation; |
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import org.gvsig.geoprocess.algorithm.difference.DifferenceOperation; |
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import org.gvsig.geoprocess.algorithm.intersection.IntersectionOperation; |
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import org.gvsig.geoprocess.lib.sextante.AbstractSextanteGeoProcess; |
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import org.gvsig.geoprocess.lib.sextante.dataObjects.FlyrVectIVectorLayer; |
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import es.unex.sextante.core.Sextante; |
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import es.unex.sextante.dataObjects.IVectorLayer; |
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import es.unex.sextante.exceptions.GeoAlgorithmExecutionException; |
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import es.unex.sextante.exceptions.NullParameterValueException; |
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import es.unex.sextante.exceptions.RepeatedParameterNameException; |
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import es.unex.sextante.exceptions.WrongParameterIDException; |
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import es.unex.sextante.exceptions.WrongParameterTypeException; |
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import es.unex.sextante.outputs.OutputVectorLayer; |
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/**
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* Union algorithm
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* @author <a href="mailto:nachobrodin@gmail.com">Nacho Brodin</a>
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*/
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public class UnionAlgorithm extends AbstractSextanteGeoProcess { |
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public static final String RESULT1 = "RESULT1"; |
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public static final String RESULT2 = "RESULT2"; |
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public static final String LAYER1 = "LAYER1"; |
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public static final String LAYER2 = "LAYER2"; |
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public static final String CHECK = "CHECK"; |
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/*
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* (non-Javadoc)
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* @see es.unex.sextante.core.GeoAlgorithm#defineCharacteristics()
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*/
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public void defineCharacteristics() { |
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setName(getTranslation("Union"));
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setGroup(getTranslation("basic_vect_algorithms"));
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// setGeneratesUserDefinedRasterOutput(false);
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try {
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m_Parameters.addInputVectorLayer(LAYER1, |
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getTranslation("Input_layer") + " 1", |
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IVectorLayer.SHAPE_TYPE_WRONG, |
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true);
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m_Parameters.addInputVectorLayer(LAYER2, |
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getTranslation("Input_layer") + " 2", |
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IVectorLayer.SHAPE_TYPE_WRONG, |
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true);
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m_Parameters.addBoolean(CHECK, |
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getTranslation("Selected_geometries"), false); |
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} catch (RepeatedParameterNameException e) {
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Sextante.addErrorToLog(e); |
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} |
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addOutputVectorLayer(RESULT1, getTranslation("Union_l1"),
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OutputVectorLayer.SHAPE_TYPE_UNDEFINED); |
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addOutputVectorLayer(RESULT2, getTranslation("Union_l2"),
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OutputVectorLayer.SHAPE_TYPE_UNDEFINED); |
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} |
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/*
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* (non-Javadoc)
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* @see es.unex.sextante.core.GeoAlgorithm#processAlgorithm()
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*/
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public boolean processAlgorithm() throws GeoAlgorithmExecutionException { |
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if(existsOutPutFile(UnionAlgorithm.RESULT1, 0)) { |
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throw new GeoAlgorithmExecutionException(getTranslation("file_exists")); |
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} |
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if(existsOutPutFile(UnionAlgorithm.RESULT2, 0)) { |
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throw new GeoAlgorithmExecutionException(getTranslation("file_exists")); |
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} |
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IVectorLayer layer1 = m_Parameters.getParameterValueAsVectorLayer(LAYER1); |
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IVectorLayer layer2 = m_Parameters.getParameterValueAsVectorLayer(LAYER2); |
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boolean selectedGeom = m_Parameters.getParameter(CHECK).getParameterValueAsBoolean();
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FeatureStore storeLayer1 = null;
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FeatureStore storeLayer2 = null;
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if(layer1 instanceof FlyrVectIVectorLayer && |
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layer2 instanceof FlyrVectIVectorLayer) {
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storeLayer1 = ((FlyrVectIVectorLayer)layer1).getFeatureStore(); |
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storeLayer2 = ((FlyrVectIVectorLayer)layer2).getFeatureStore(); |
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} else
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return false; |
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try {
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FeatureSet features1 = null;
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features1 = storeLayer1.getFeatureSet(); |
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FeatureType featureType1 = features1.getDefaultFeatureType(); |
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FeatureSet features2 = null;
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features2 = storeLayer2.getFeatureSet(); |
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FeatureType featureType2 = features2.getDefaultFeatureType(); |
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FeatureStore featStoreOut1 = null;
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FeatureStore featStoreOut2 = null;
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//POL-POL
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if(isPolygon(storeLayer1) && isPolygon(storeLayer2)) {
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featStoreOut1 = buildOutPutStoreFromUnion(featureType1, |
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featureType2, |
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layer1.getShapeType(), |
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getTranslation("Union_polygon"),
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RESULT1); |
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computesUnion(storeLayer1, storeLayer2, featStoreOut1, selectedGeom); |
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} else
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//PTO-PTO
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if(isPoint(storeLayer1) && isPoint(storeLayer2)) {
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featStoreOut1 = buildOutPutStoreFromUnion(featureType1, |
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featureType2, |
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layer1.getShapeType(), |
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getTranslation("Union_point"),
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RESULT1); |
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computesUnion(storeLayer1, storeLayer2, featStoreOut1, selectedGeom); |
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} else
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//LIN-LIN
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if(isLine(storeLayer1) && isLine(storeLayer2)) {
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featStoreOut1 = buildOutPutStoreFromUnion(featureType1, |
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featureType2, |
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IVectorLayer.SHAPE_TYPE_POINT, |
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getTranslation("Union_point"),
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RESULT1); |
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computesIntersection(storeLayer1, storeLayer2, featStoreOut1, selectedGeom, true);
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featStoreOut2 = buildOutPutStoreFromUnion(featureType1, |
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featureType2, |
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IVectorLayer.SHAPE_TYPE_LINE, |
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getTranslation("Union_line"),
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RESULT2); |
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computesDifference(storeLayer1, storeLayer2, featStoreOut2, selectedGeom, false);
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computesDifference(storeLayer2, storeLayer1, featStoreOut2, selectedGeom, true);
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} else
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//POL-LIN
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if( (isPolygon(storeLayer1) && isLine(storeLayer2)) ||
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(isLine(storeLayer1) && isPolygon(storeLayer2))) {
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featStoreOut1 = buildOutPutStoreFromUnion(featureType1, |
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featureType2, |
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IVectorLayer.SHAPE_TYPE_LINE, |
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getTranslation("Union_line"), RESULT1);
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computesUnion(storeLayer1, storeLayer2, featStoreOut1, selectedGeom); |
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featStoreOut2 = buildOutPutStoreFromUnion(featureType1, |
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featureType2, |
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IVectorLayer.SHAPE_TYPE_POLYGON, |
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getTranslation("Union_polygon"),
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RESULT2); |
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computesDifference(storeLayer1, storeLayer2, featStoreOut2, selectedGeom, false);
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computesDifference(storeLayer2, storeLayer1, featStoreOut2, selectedGeom, true);
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} else
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//POL-PTO
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if( (isPolygon(storeLayer1) && isPoint(storeLayer2)) ||
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(isPoint(storeLayer1) && isPolygon(storeLayer2))) {
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featStoreOut1 = buildOutPutStoreFromUnion(featureType1, featureType2, IVectorLayer.SHAPE_TYPE_POINT, |
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getTranslation("Union_point"), RESULT1);
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computesUnion(storeLayer1, storeLayer2, featStoreOut1, selectedGeom); |
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featStoreOut2 = buildOutPutStoreFromUnion(featureType1, featureType2, IVectorLayer.SHAPE_TYPE_POLYGON, |
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getTranslation("Union_polygon"), RESULT2);
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computesUnion(storeLayer1, storeLayer2, featStoreOut2, selectedGeom); |
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} else
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//PTO-LIN
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if( (isPoint(storeLayer1) && isLine(storeLayer2)) ||
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(isLine(storeLayer1) && isPoint(storeLayer2))) {
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featStoreOut1 = buildOutPutStoreFromUnion(featureType1, featureType2, IVectorLayer.SHAPE_TYPE_POINT, |
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getTranslation("Union_point"), RESULT1);
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computesUnion(storeLayer1, storeLayer2, featStoreOut1, selectedGeom); |
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featStoreOut2 = buildOutPutStoreFromUnion(featureType1, featureType2, IVectorLayer.SHAPE_TYPE_LINE, |
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getTranslation("Union_line"), RESULT2);
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computesUnion(storeLayer1, storeLayer2, featStoreOut2, selectedGeom); |
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} |
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if(featStoreOut2 == null) { |
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featStoreOut2 = buildOutPutStoreFromUnion(featureType1, featureType2, IVectorLayer.SHAPE_TYPE_WRONG, |
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getTranslation("Null_Layer"), RESULT2);
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} |
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} catch (ReadException e) {
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throw new GeoAlgorithmExecutionException(e.getMessage()); |
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} catch (DataException e) {
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throw new GeoAlgorithmExecutionException(e.getMessage()); |
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} |
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if(getTaskMonitor().isCanceled())
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return false; |
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return true; |
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} |
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/**
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* Computes union
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* @param storeLayer1
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* @param storeLayer2
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* @param featStoreOut
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* @param selectedGeom
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* @throws DataException
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* @throws WrongParameterTypeException
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* @throws WrongParameterIDException
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* @throws NullParameterValueException
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*/
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private void computesUnion(FeatureStore storeLayer1, FeatureStore storeLayer2, FeatureStore featStoreOut, boolean selectedGeom) throws DataException, WrongParameterTypeException, WrongParameterIDException, NullParameterValueException { |
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computesIntersection(storeLayer1, storeLayer2, featStoreOut, selectedGeom, false);
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computesDifference(storeLayer1, storeLayer2, featStoreOut, selectedGeom, false);
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computesDifference(storeLayer2, storeLayer1, featStoreOut, selectedGeom, true);
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} |
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/**
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* Computes intersection
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* @param storeLayer1
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* @param storeLayer2
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* @param featStoreOut
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* @param selectedGeom
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* @param close
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* @throws DataException
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* @throws WrongParameterTypeException
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* @throws WrongParameterIDException
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* @throws NullParameterValueException
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*/
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private void computesIntersection(FeatureStore storeLayer1, FeatureStore storeLayer2, FeatureStore featStoreOut, boolean selectedGeom, boolean close) throws DataException, WrongParameterTypeException, WrongParameterIDException, NullParameterValueException { |
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GeometryOperation intersection = new IntersectionOperation(storeLayer2, this); |
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intersection.setTaskStatus(getStatus()); |
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intersection.computesGeometryOperation(storeLayer1, featStoreOut, attrNames, selectedGeom, close); |
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} |
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/**
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* Computes difference
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* @param storeLayer1
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* @param storeLayer2
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* @param featStoreOut
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* @param selectedGeom
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* @param close
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* @throws DataException
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* @throws WrongParameterTypeException
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* @throws WrongParameterIDException
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* @throws NullParameterValueException
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*/
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private void computesDifference(FeatureStore storeLayer1, FeatureStore storeLayer2, FeatureStore featStoreOut, boolean selectedGeom, boolean close) throws DataException, WrongParameterTypeException, WrongParameterIDException, NullParameterValueException { |
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Geometry unionGeom1 = ScalableUnionOperation.joinLayerGeometries(storeLayer2); |
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GeometryOperation differenceL1_L2 = new DifferenceOperation(unionGeom1, this); |
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differenceL1_L2.setTaskStatus(getStatus()); |
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differenceL1_L2.computesGeometryOperation(storeLayer1, featStoreOut, attrNames, selectedGeom, close); |
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} |
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} |