gvsig-geoprocess / org.gvsig.sextante / trunk / org.gvsig.geoprocess / org.gvsig.geoprocess.algorithm / org.gvsig.geoprocess.algorithm.spatialjoin / src / main / java / org / gvsig / geoprocess / algorithm / spatialjoin / IntersectsSpatialJoinOperation.java @ 175
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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) 2010 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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package org.gvsig.geoprocess.algorithm.spatialjoin; |
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import java.util.List; |
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import es.unex.sextante.core.Sextante; |
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import org.gvsig.fmap.dal.DataTypes; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.feature.EditableFeature; |
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import org.gvsig.fmap.dal.feature.Feature; |
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import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.FeatureIndex; |
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import org.gvsig.fmap.dal.feature.FeatureIndexes; |
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import org.gvsig.fmap.dal.feature.FeatureSet; |
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import org.gvsig.fmap.dal.feature.exception.FeatureIndexException; |
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import org.gvsig.fmap.geom.exception.CreateGeometryException; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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import org.gvsig.geoprocess.algorithm.base.core.GeometryOperation; |
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import org.gvsig.geoprocess.algorithm.dissolve.Summary; |
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import org.gvsig.geoprocess.core.gvVectorLayer; |
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import org.gvsig.tools.dispose.DisposableIterator; |
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/**
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*
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* @author <a href="mailto:nachobrodin@gmail.com">Nacho Brodin</a>
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*/
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public class IntersectsSpatialJoinOperation extends GeometryOperation { |
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/**
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* Specialized instance in nearest neighbor search.
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*/
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private FeatureIndex index = null; |
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private Summary summary = null; |
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public IntersectsSpatialJoinOperation(gvVectorLayer targetLayer, String indexName, Summary summary) { |
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FeatureIndexes indexes = targetLayer.getFeatureStore().getIndexes(); |
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index = indexes.getFeatureIndex(indexName); |
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this.summary = summary;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.geoprocess.algorithm.base.core.GeometryOperation#invoke(org.gvsig.fmap.geom.Geometry, org.gvsig.fmap.dal.feature.Feature)
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*/
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public EditableFeature invoke(org.gvsig.fmap.geom.Geometry g, Feature featureInput) {
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if(g == null) |
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return lastEditFeature;
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try {
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Envelope rect = g.getEnvelope(); |
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FeatureSet featSet = index.getMatchFeatureSet(rect); |
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boolean first = true; |
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int numReg = 0; |
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DisposableIterator it = featSet.iterator(); |
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while(it.hasNext()) {
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Feature feat = (Feature)it.next(); |
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if(first) {
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summary.loadDefaultSummarizes(feat); |
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first = false;
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} |
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summary.updateValues(feat); |
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numReg ++; |
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} |
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buildNewFeature(featureInput, summary, numReg); |
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} catch(FeatureIndexException e) {
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Sextante.addErrorToLog(e); |
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} catch (DataException e) {
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Sextante.addErrorToLog(e); |
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} |
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return lastEditFeature;
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} |
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/**
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* Builds a new output feature and adds it to the output file
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* @param feat1
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* @param feat2
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* @param value
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* @param g
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* @throws DataException
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*/
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@SuppressWarnings("unchecked") |
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private void buildNewFeature(Feature feat, Summary summary, int numReg) throws DataException { |
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EditableFeature outFeat = persister.getOutputFeatureStore().createNewFeature(); |
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FeatureAttributeDescriptor[] attrs = feat.getType().getAttributeDescriptors();
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//Loads the old feature
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int pos = 0; |
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for (int i = 0; i < attrs.length; i++) { |
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if (attrs[i].getDataType().getType() != DataTypes.GEOMETRY) {
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outFeat.set(pos, feat.get(i)); |
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pos ++; |
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} |
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} |
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//Loads the statistics
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summary.loadEditableFeature(outFeat); |
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//Loads the new field
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outFeat.set(SpatialJoinAlgorithm.NEW_FIELD, new Integer(numReg)); |
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//Saves the geometry
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try {
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List l = feat.getGeometries();
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if(l == null) { |
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persister.addFeature(outFeat, feat.getDefaultGeometry()); |
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} else {
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EditableFeature editFeat = null;
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for (int i = 0; i < l.size(); i++) { |
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if(editFeat == null) { |
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editFeat = persister.addFeature(outFeat, (org.gvsig.fmap.geom.Geometry)l.get(i)); |
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} else {
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persister.addGeometryToExistingFeature(editFeat, (org.gvsig.fmap.geom.Geometry)l.get(i)); |
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} |
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} |
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} |
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} catch (CreateGeometryException e) {
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Sextante.addErrorToLog(e); |
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} |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.geoprocess.algorithm.base.core.GeometryOperation#invoke(org.gvsig.fmap.geom.Geometry, org.gvsig.fmap.dal.feature.EditableFeature)
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*/
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public void invoke(org.gvsig.fmap.geom.Geometry g, EditableFeature featureInput) { |
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} |
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} |