Application: gvSIG desktop

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

 *

 * Copyright (C) 2005 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.raster.filter.mask;

import java.util.ArrayList;

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

import org.gvsig.raster.buffer.RasterBuffer;

import org.gvsig.raster.dataset.IBuffer;

import org.gvsig.raster.dataset.MultiRasterDataset;

import org.gvsig.raster.dataset.Params;

import org.gvsig.raster.grid.GridExtent;

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

/**

 * Filtro que aplica una m?scara con la lista de ROIS. Los p?xeles dentro

 * de la ROI se ponen al valor de la imagen de origen. Los p?xeles fuera

 * de la ROI se ponen a NoData.

 * 

 * 14/03/2008

 * @author Nacho Brodin nachobrodin@gmail.com

 */

public class MaskFilter extends RasterFilter {

        public static String[]         names           = new String[] { "mask" };

        protected MaskUI               maskUI          = null;

        protected ArrayList            rois            = null;

        protected double               nodata          = -99999;

        protected boolean              inverse         = false;

        //Extent de la ventana de datos y de la imagen completa.

        protected GridExtent           gridExtent      = null;

        protected GridExtent           windowExtent    = null;

        protected MultiRasterDataset   dataset         = null;

        protected IBuffer              rasterAlpha     = null;

        /**

         * Constructor

         */

        public MaskFilter() {

                super();

                setName(names[0]);

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.raster.grid.filter.RasterFilter#getGroup()

         */

        public String getGroup() {

                return "mascaras";

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.raster.grid.filter.RasterFilter#getNames()

         */

        public String[] getNames() {

                return names;

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.raster.grid.filter.RasterFilter#getResult(java.lang.String)

         */

        public Object getResult(String name) {

                if (name.equals("alphaBand"))

                        return rasterAlpha;

                if (!name.equals("raster"))

                        return null;

                if (!exec)

                        return (Object) this.raster;

                return (Object) this.rasterResult;

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.raster.grid.filter.RasterFilter#getUIParams(java.lang.String)

         */

        public Params getUIParams(String nameFilter) {

                Params params = new Params();

                params.setParam("Panel", getMaskUI(), -1, null);

                params.setParam("FilterName", nameFilter, -1, null);

                return params;

        }

        /**

         * Obtiene el interfaz gr?fico para el filtro de m?scara.

         * @return MaskUI

         */

        private MaskUI getMaskUI() {

                if (maskUI == null) {

                        maskUI = new MaskUI();

                        FLyrRasterSE raster = (FLyrRasterSE) getEnv().get("initRaster");

                        maskUI.setRois(rois);

                        maskUI.setLayer(raster);

                }

                return maskUI;

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.raster.grid.filter.RasterFilter#pre()

         */

        public void pre() {

                exec = true;

                raster = rasterResult;

                raster = (RasterBuffer) params.get("raster");

                Boolean inverseBoolean = (Boolean)params.get("inverse");

                if(inverseBoolean != null)

                        inverse = inverseBoolean.booleanValue();

                Double nodataDouble = (Double)params.get("nodata");

                if(nodataDouble != null)

                        nodata = nodataDouble.doubleValue();

                Boolean transpBoolean = (Boolean)params.get("transparency");

                rois = (ArrayList) params.get("rois");

                if (rois == null)

                        rois = new ArrayList();

                height = raster.getHeight();

                width = raster.getWidth();

                gridExtent = (GridExtent) environment.get("GridExtent");

                windowExtent = (GridExtent) environment.get("WindowExtent");

                dataset = (MultiRasterDataset) environment.get("MultiRasterDataset");

                rasterResult = RasterBuffer.getBuffer(raster.getDataType(), raster.getWidth(), raster.getHeight(), raster.getBandCount(), true);

                if(transpBoolean.booleanValue() && raster.getDataType() == IBuffer.TYPE_BYTE) 

                        rasterAlpha = RasterBuffer.getBuffer(IBuffer.TYPE_BYTE, raster.getWidth(), raster.getHeight(), 1, true);

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.raster.grid.filter.RasterFilter#process(int, int)

         */

        public void process(int x, int y) throws InterruptedException {

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.raster.grid.filter.RasterFilter#post()

         */

        public void post() {

        }

        public int getInRasterDataType() {return 0;}

        public int getOutRasterDataType() {return 0;}

}