Application: gvSIG desktop » gvSIG raster

package org.gvsig.raster.principalcomponents;

import org.gvsig.fmap.dal.coverage.RasterLocator;

import org.gvsig.fmap.dal.coverage.datastruct.Extent;

import org.gvsig.fmap.dal.coverage.exception.ProcessInterruptedException;

import org.gvsig.geoprocess.lib.sextante.AbstractSextanteGeoProcess;

import org.gvsig.geoprocess.lib.sextante.dataObjects.FLyrRasterIRasterLayer;

import org.gvsig.raster.algorithm.RasterBaseAlgorithmLibrary;

import org.gvsig.raster.algorithm.process.ProcessException;

import org.gvsig.raster.algorithm.process.DataProcess;

import org.gvsig.raster.fmap.layers.FLyrRaster;

import org.gvsig.raster.principalcomponents.algorithm.PrincipalComponentsProcess;

import es.unex.sextante.core.AnalysisExtent;

import es.unex.sextante.core.Sextante;

import es.unex.sextante.dataObjects.IRasterLayer;

import es.unex.sextante.exceptions.GeoAlgorithmExecutionException;

import es.unex.sextante.exceptions.RepeatedParameterNameException;

/**

 * ...

 */

public class PrincipalComponentsSextanteAlgorithm extends AbstractSextanteGeoProcess {

    public static final String RESULT            = "RESULT";

    public static final String LAYER             = PrincipalComponentsProcess.RASTER_STORE;

    public void defineCharacteristics() {

        setName(getTranslation("principalcomponents"));

        setGroup(getTranslation("basic_raster_algorithms"));

        // setGeneratesUserDefinedRasterOutput(false);

        try {

            m_Parameters.addInputRasterLayer(LAYER, getTranslation("Input_layer"), true);

                    //TODO:Add parameters

        } catch (RepeatedParameterNameException e) {

            Sextante.addErrorToLog(e);

        }

        addOutputRasterLayer(RESULT, getTranslation("principalcomponents"));

    }

    public boolean processAlgorithm() throws GeoAlgorithmExecutionException {

            if(existsOutPutFile(PrincipalComponentsSextanteAlgorithm.RESULT, 0)) {

                    throw new GeoAlgorithmExecutionException(getTranslation("file_exists"));

            }

            IRasterLayer input = m_Parameters.getParameterValueAsRasterLayer(LAYER);

                //TODO:Get parameters

            FLyrRaster lyrRaster = ((FLyrRaster)input.getBaseDataObject());

            IRasterLayer output = null;

            DataProcess task = null;

            AnalysisExtent ext = getAnalysisExtent();

            Extent bbox = RasterLocator.getManager().getDataStructFactory().createExtent(

                            ext.getXMin(), ext.getYMax(), ext.getXMax(), ext.getYMin());

                try {

                        output = getNewRORasterLayer(

                                        RESULT, 

                                        Sextante.getText("principalcomponents_description"), 

                                        input.getDataType(), 

                                        input.getBandsCount());

                        task = RasterBaseAlgorithmLibrary.getManager().createRasterTask("PrincipalComponentsProcess");

                } catch (ProcessException e1) {

                         Sextante.addErrorToLog(e1);

                } 

            String fileName = ((FLyrRasterIRasterLayer)output).getFileName(); //getOutPutFile(RESULT);

            task.addParam(PrincipalComponentsProcess.PATH, fileName);

                task.addParam(PrincipalComponentsProcess.RASTER_STORE, lyrRaster.getDataStore());

                //TODO:Add parameters

                /*task.addParam(PrincipalComponentsProcess.EXPORT, true);

                task.addParam(PrincipalComponentsProcess.TEST_EXTENT, bbox);

                task.addParam(PrincipalComponentsProcess.TEST_WIDTH, ext.getNX());

                task.addParam(PrincipalComponentsProcess.TEST_HEIGHT, ext.getNY());*/

                try {

                        task.execute();

                        ((FLyrRasterIRasterLayer)output).setBaseDataObject(fileName);

                } catch (ProcessInterruptedException e) {

                        Sextante.addErrorToLog(e);

                } catch (ProcessException e) {

                        Sextante.addErrorToLog(e);

                } 

                if(getTaskMonitor().isCanceled())

                        return false;

        return true;

    }

    /*

     * TODO: Customized panels

    @Override

    public Class<? extends GeoAlgorithmParametersPanel> getCustomParametersPanelClass() {

        return PrincipalComponentsParametersPanel.class;

    }*/

}