| gvSIG desktop 1

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2007 IVER T.I. and Generalitat Valenciana.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 */

package org.gvsig.rastertools.vectorizacion.vector;

import java.io.File;

import org.cresques.cts.IProjection;

import org.gvsig.fmap.dal.DALLocator;

import org.gvsig.fmap.dal.DataManager;

import org.gvsig.fmap.dal.exception.InitializeException;

import org.gvsig.fmap.dal.exception.ProviderNotRegisteredException;

import org.gvsig.fmap.dal.store.shp.SHPStoreParameters;

import org.gvsig.fmap.dal.store.shp.SHPStoreProvider;

import org.gvsig.fmap.mapcontext.exceptions.LoadLayerException;

import org.gvsig.fmap.mapcontext.layers.FLayer;

import org.gvsig.fmap.mapcontext.layers.LayerFactory;

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

import org.gvsig.raster.IProcessActions;

import org.gvsig.raster.RasterLibrary;

import org.gvsig.raster.RasterProcess;

import org.gvsig.raster.grid.filter.FilterTypeException;

import org.gvsig.raster.util.RasterToolsUtil;

import org.gvsig.raster.util.RasterUtilities;

import org.gvsig.rastertools.vectorizacion.process.ContourLinesProcess;

import org.gvsig.rastertools.vectorizacion.process.PotraceProcess;

/**

 * Procesos necesarios para la funcionalidad de vectorizaci?n.

 *

 * 11/07/2008

 * @author Nacho Brodin nachobrodin@gmail.com

 */

public class VectorProcess implements IProcessActions {

        private FLyrRasterSE                  sourceLayer       = null;

        private IProcessActions               endActions        = null;

        private String                        shapeName         = null;

        private IProjection                   proj              = null;

        /**

         * Constructor que asigna el nombre de capa

         * @param lyrPath

         */

        public VectorProcess(FLyrRasterSE lyr, IProcessActions endActions, IProjection proj) {

                this.sourceLayer = lyr;

                this.endActions = endActions;

                this.proj = proj;

        }

        /**

         * Aplica el proceso de recorte sobre el raster inicial

         * @throws FilterTypeException

         * @throws LoadLayerException

         */

        public void contourLines(double distance) throws FilterTypeException, LoadLayerException {

                if(sourceLayer == null)

                        return;

                RasterProcess contourLinesProcess = new ContourLinesProcess();

                contourLinesProcess.setActions(this);

                shapeName = RasterLibrary.getTemporalPath() + File.separator + RasterLibrary.usesOnlyLayerName() + ".shp";

                contourLinesProcess.addParam("filename", shapeName);

                contourLinesProcess.addParam("layer", sourceLayer);

                contourLinesProcess.addParam("min", new Double(0));

                contourLinesProcess.addParam("max", new Double(255));

                contourLinesProcess.addParam("distance", new Double(distance));

                contourLinesProcess.start();

        }

        /**

         * Aplica el proceso para vectorizar con potrace

         */

        public void potraceLines(int policy, int bezierPoints, int despeckle, double cornerThreshold, double optimizationTolerance, int outputQuantization, boolean curveOptimization) {

                PotraceProcess potraceProcess = new PotraceProcess();

                potraceProcess.setActions(this);

                shapeName = RasterLibrary.getTemporalPath() + File.separator + RasterLibrary.usesOnlyLayerName() + ".shp";

                potraceProcess.addParam("filename", shapeName);

                potraceProcess.addParam("layer", sourceLayer);

                potraceProcess.addParam("policy", new Integer(policy));

                potraceProcess.addParam("points", new Integer(bezierPoints));

                potraceProcess.addParam("despeckle", new Integer(despeckle));

                potraceProcess.addParam("cornerThreshold", new Double(cornerThreshold));

                potraceProcess.addParam("optimizationTolerance", new Double(optimizationTolerance));

                potraceProcess.addParam("outputQuantization", new Integer(outputQuantization));

                potraceProcess.addParam("curveoptimization", new Boolean(curveOptimization));

                potraceProcess.start();

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.raster.IProcessActions#end(java.lang.Object)

         */

        public void end(Object param) {

                FLayer shpLyr = null;

                try {

                        String layerName = RasterUtilities.getFileNameFromCanonical(shapeName);

                        DataManager datamanager=DALLocator.getDataManager();

                        SHPStoreParameters params=null;

                        try {

                                params = (SHPStoreParameters)datamanager.createStoreParameters(SHPStoreProvider.NAME);

                                params.setCRS(proj);

                        } catch (InitializeException e) {

                                throw new LoadLayerException(shapeName,e);

                        } catch (ProviderNotRegisteredException e) {

                                throw new LoadLayerException(shapeName,e);

                        }

                        params.setFile(shapeName);

                        shpLyr = LayerFactory.getInstance().createLayer(layerName, params);

                } catch (LoadLayerException e) {

                        RasterToolsUtil.messageBoxError("error_generating_layer", null, e);

                }

                if(endActions != null)

                        endActions.end(new Object[]{this, shpLyr});

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.raster.IProcessActions#interrupted(java.lang.Object)

         */

        public void interrupted() {

        }

        /**

         * Asigna la capa raster a vectorizar

         * @param lyr

         */

        public void setSourceLayer(FLyrRasterSE lyr) {

                this.sourceLayer = lyr;

        }

        /**

         * Asigna el interfaz para que el proceso ejectute las acciones de finalizaci?n

         * al acabar.

         * @param endActions

         */

        public void setProcessActions(IProcessActions endActions) {

                this.endActions = endActions;

        }

}