| gvSIG desktop 1

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

 *

 * Copyright (C) 2004 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.grid.filter.correction;

import org.gvsig.raster.buffer.RasterBuffer;

import org.gvsig.raster.dataset.IBuffer;

import org.gvsig.raster.dataset.Params;

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

/**

 * Clase base para los filtros de mediana.

 *

 * @author Diego Guerrero Sevilla  <diego.guerrero@uclm.es>

 */

public class MedianFilter extends RasterFilter {

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

        /**

         * Variable para guardar el lado de la ventana de filtrado

         */

        protected int                   ladoVentana                = 0;

        protected IBuffer               rasterResult = null;

        public MedianFilter() {

                super();

                setName(names[0]);

        }

        /*

         * (non-Javadoc)

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

         */

        public void pre() {

                exec = true;

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

                height = raster.getHeight();

                width = raster.getWidth();

                ladoVentana = ((Integer) params.get("ladoVentana")).intValue();

        }

        /*

         * (non-Javadoc)

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

         */

        public void post() {

                // En caso de que nadie apunte a raster, se liberar? su memoria.

                raster = null;

        }

        /*

         * (non-Javadoc)

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

         */

        public String getGroup() {

                return "espaciales";

        }

        /*

         * (non-Javadoc)

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

         */

        public int getInRasterDataType() {

                return 0;

        }

        /*

         * (non-Javadoc)

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

         */

        public String[] getNames() {

                return names;

        }

        /*

         * (non-Javadoc)

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

         */

        public int getOutRasterDataType() {

                return 0;

        }

        /*

         * (non-Javadoc)

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

         */

        public Object getResult(String name) {

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

                        if(!exec)

                                return (Object) this.raster;

                        else

                                return (Object) this.rasterResult;

                } else {

                        return null;

                }

        }

        /*

         * (non-Javadoc)

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

         */

        public Params getUIParams(String nameFilter) {

                Params params = new Params();

                params.setParam("LadoVentana",

                                new Integer(ladoVentana),

                                Params.SLIDER,

                                new String[] {"1", "7", "0", "1", "25" }); //min, max, valor defecto, intervalo peque?o, intervalo grande;

                return params;

        }

        /*

         * (non-Javadoc)

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

         */

        public void process(int x, int y) {

        }

}