root / org.gvsig.toolbox / trunk / org.gvsig.toolbox / org.gvsig.toolbox.algorithm / src / main / java / es / unex / sextante / vectorTools / addEventTheme / AddEventThemeAlgorithm.java @ 59
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package es.unex.sextante.vectorTools.addEventTheme; |
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import com.vividsolutions.jts.geom.Coordinate; |
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import com.vividsolutions.jts.geom.GeometryFactory; |
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import com.vividsolutions.jts.geom.Point; |
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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.IRecord; |
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import es.unex.sextante.dataObjects.IRecordsetIterator; |
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import es.unex.sextante.dataObjects.ITable; |
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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.OptionalParentParameterException; |
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import es.unex.sextante.exceptions.RepeatedParameterNameException; |
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import es.unex.sextante.exceptions.UndefinedParentParameterNameException; |
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import es.unex.sextante.outputs.OutputVectorLayer; |
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public class AddEventThemeAlgorithm |
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extends
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GeoAlgorithm { |
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public static final String TABLE = "TABLE"; |
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public static final String XFIELD = "XFIELD"; |
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public static final String RESULT = "RESULT"; |
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public static final String YFIELD = "YFIELD"; |
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@Override
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public boolean processAlgorithm() throws GeoAlgorithmExecutionException { |
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int j;
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int iFieldX, iFieldY;
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ITable table; |
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String[] sFields; |
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Class[] types; |
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table = m_Parameters.getParameterValueAsTable(TABLE); |
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iFieldX = m_Parameters.getParameterValueAsInt(XFIELD); |
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iFieldY = m_Parameters.getParameterValueAsInt(YFIELD); |
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sFields = new String[table.getFieldCount()]; |
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types = new Class[table.getFieldCount()]; |
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for (j = 0; j < table.getFieldCount(); j++) { |
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sFields[j] = table.getFieldName(j); |
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types[j] = table.getFieldType(j); |
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} |
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final IVectorLayer output = getNewVectorLayer(RESULT, Sextante.getText("Layer_from_table"), IVectorLayer.SHAPE_TYPE_POINT, |
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types, sFields); |
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final IRecordsetIterator iter = table.iterator();
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final GeometryFactory geomFac = new GeometryFactory(); |
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while (iter.hasNext()) {
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try {
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final IRecord record = iter.next();
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final String sX = record.getValue(iFieldX).toString(); |
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final String sY = record.getValue(iFieldY).toString(); |
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final double dX = Double.parseDouble(sX); |
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final double dY = Double.parseDouble(sY); |
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final Point pt = geomFac.createPoint(new Coordinate(dX, dY)); |
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output.addFeature(pt, record.getValues()); |
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} |
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catch (final NumberFormatException e) {} |
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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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@Override
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public void defineCharacteristics() { |
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this.setName(Sextante.getText("Points_layer_from_table")); |
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setGroup(Sextante.getText("Tools_for_point_layers"));
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try {
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m_Parameters.addInputTable(TABLE, Sextante.getText("Table"), true); |
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m_Parameters.addTableField(XFIELD, Sextante.getText("X"), TABLE);
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m_Parameters.addTableField(YFIELD, Sextante.getText("Y"), TABLE);
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addOutputVectorLayer(RESULT, Sextante.getText("Result"), OutputVectorLayer.SHAPE_TYPE_POINT);
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} |
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catch (final RepeatedParameterNameException e) { |
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Sextante.addErrorToLog(e); |
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} |
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catch (final UndefinedParentParameterNameException e) { |
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Sextante.addErrorToLog(e); |
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} |
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catch (final OptionalParentParameterException e) { |
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Sextante.addErrorToLog(e); |
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} |
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} |
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} |