root / org.gvsig.toolbox / trunk / org.gvsig.toolbox / org.gvsig.toolbox.algorithm / src / main / java / es / unex / sextante / vectorTools / NNSpatialJoin / NNSpatialJoinAlgorithm.java @ 255
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package es.unex.sextante.vectorTools.NNSpatialJoin; |
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import com.vividsolutions.jts.geom.Coordinate; |
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import es.unex.sextante.additionalInfo.AdditionalInfoVectorLayer; |
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import es.unex.sextante.core.GeoAlgorithm; |
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import es.unex.sextante.core.Sextante; |
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import es.unex.sextante.dataObjects.IFeature; |
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import es.unex.sextante.dataObjects.IFeatureIterator; |
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import es.unex.sextante.dataObjects.IRecord; |
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import es.unex.sextante.dataObjects.IVectorLayer; |
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import es.unex.sextante.dataObjects.vectorFilters.BoundingBoxFilter; |
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import es.unex.sextante.exceptions.GeoAlgorithmExecutionException; |
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import es.unex.sextante.exceptions.RepeatedParameterNameException; |
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import es.unex.sextante.outputs.OutputVectorLayer; |
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public class NNSpatialJoinAlgorithm |
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extends
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GeoAlgorithm { |
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public static final String RESULT = "RESULT"; |
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public static final String MAIN = "MAIN"; |
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public static final String SECONDARY = "SECONDARY"; |
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private IVectorLayer m_MainLayer;
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private IVectorLayer m_SecondaryLayer;
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private IVectorLayer m_Output;
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private SextanteRTree m_SearchEngine;
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@Override
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public void defineCharacteristics() { |
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setName(Sextante.getText("NN_Spatial_Join"));
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setGroup(Sextante.getText("Tools_for_vector_layers"));
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setUserCanDefineAnalysisExtent(true);
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try {
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m_Parameters.addInputVectorLayer(MAIN, Sextante.getText("Main_layer"), AdditionalInfoVectorLayer.SHAPE_TYPE_ANY, true); |
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m_Parameters.addInputVectorLayer(SECONDARY, Sextante.getText("Additional_layer"),
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AdditionalInfoVectorLayer.SHAPE_TYPE_ANY, true);
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addOutputVectorLayer(RESULT, Sextante.getText("Result"), OutputVectorLayer.SHAPE_TYPE_UNDEFINED);
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} |
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catch (final RepeatedParameterNameException e) { |
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} |
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} |
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@Override
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public boolean processAlgorithm() throws GeoAlgorithmExecutionException { |
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int i;
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int iShapeCount;
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m_MainLayer = m_Parameters.getParameterValueAsVectorLayer(MAIN); |
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m_SecondaryLayer = m_Parameters.getParameterValueAsVectorLayer(SECONDARY); |
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if (!m_bIsAutoExtent) {
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m_MainLayer.addFilter(new BoundingBoxFilter(m_AnalysisExtent));
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m_SecondaryLayer.addFilter(new BoundingBoxFilter(m_AnalysisExtent));
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} |
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m_SearchEngine = new SextanteRTree(m_SecondaryLayer, m_Task);
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final Class[] types = new Class[m_SecondaryLayer.getFieldCount() + m_MainLayer.getFieldCount()]; |
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final String[] sFields = new String[m_SecondaryLayer.getFieldCount() + m_MainLayer.getFieldCount()]; |
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for (i = 0; i < m_MainLayer.getFieldCount(); i++) { |
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sFields[i] = m_MainLayer.getFieldName(i); |
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types[i] = m_MainLayer.getFieldType(i); |
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} |
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for (i = 0; i < m_SecondaryLayer.getFieldCount(); i++) { |
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types[i + m_MainLayer.getFieldCount()] = m_SecondaryLayer.getFieldType(i); |
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sFields[i + m_MainLayer.getFieldCount()] = checkAttrName(m_SecondaryLayer.getFieldName(i), i + m_MainLayer.getFieldCount(), sFields); |
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} |
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m_Output = getNewVectorLayer(RESULT, m_MainLayer.getName(), m_MainLayer.getShapeType(), types, sFields); |
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iShapeCount = m_MainLayer.getShapesCount(); |
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i = 0;
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final IFeatureIterator iter = m_MainLayer.iterator();
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while (iter.hasNext() && setProgress(i, iShapeCount)) {
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final IFeature feature = iter.next();
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performSpatialJoin(feature); |
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i++; |
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} |
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iter.close(); |
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return !m_Task.isCanceled();
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} |
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private void performSpatialJoin(final IFeature feature) { |
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final Coordinate coord = feature.getGeometry().getCoordinate();
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final IFeature closestFeature = m_SearchEngine.getClosestFeature(coord.x, coord.y);
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final Object[] record = new Object[m_SecondaryLayer.getFieldCount() + m_MainLayer.getFieldCount()]; |
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final IRecord closestFeatureRecord = closestFeature.getRecord();
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for (int i = 0; i < m_SecondaryLayer.getFieldCount(); i++) { |
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record[i + m_MainLayer.getFieldCount()] = closestFeatureRecord.getValue(i); |
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} |
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final IRecord mainRecord = feature.getRecord();
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for (int i = 0; i < m_MainLayer.getFieldCount(); i++) { |
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record[i] = mainRecord.getValue(i); |
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} |
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m_Output.addFeature(feature.getGeometry(), record); |
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} |
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} |