Application: gvSIG desktop » gvSIG raster

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 *

 * 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., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 */

package org.gvsig.raster.impl.grid.filter.correction;

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

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

import org.gvsig.fmap.dal.coverage.grid.filter.BaseRasterFilter;

import org.gvsig.raster.impl.store.ParamsImpl;

/**

 * Clase base para los filtros de moda.

 * 

 * @author Nacho Brodin nachobrodin@gmail.com

 */

public class ModeFilter extends BaseRasterFilter {

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

        /**

         * Variable para guardar el lado de la ventana de filtrado

         */

        protected int                   sideWindow                = 0;

        protected int                   sizeWindow      = 0;

        protected int                   halfSide        = 0;

        protected int                   count           = 0;

        public ModeFilter() {

                super();

                setName(names[0]);

        }

        public void pre() throws FilterAddException {

                super.pre();

                sideWindow = ((Integer) params.get("sideLong")).intValue();

                //El lado de la ventana debe ser positivo e impar.

                sideWindow = Math.abs(sideWindow);

                if (sideWindow % 2 == 0)

                        sideWindow++;

                sizeWindow = sideWindow * sideWindow;

                halfSide = (sideWindow - 1) >> 1;

                createBufferResult(raster.getDataType(), raster.getBandCount());

        }

        public void post() {

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

                raster = null;

        }

        public String getGroup() {

                return "espaciales";

        }

        public int getInRasterDataType() {

                return 0;

        }

        public String[] getNames() {

                return names;

        }

        public int getOutRasterDataType() {

                return 0;

        }

        public Params getUIParams(String nameFilter) {

                if(params != null) {

                        Object obj = params.get("sideLong");

                        if(obj != null && obj instanceof Integer) {

                                sideWindow = ((Integer)obj).intValue();

                                sideWindow = Math.abs(sideWindow);

                        }

                }

                Params params = new ParamsImpl();

                params.setParam("sideLong",

                                new Integer(sideWindow),

                                Params.SLIDER,

                                new String[] {"1", "10", "0", "1", "5" }); //min, max, valor defecto, intervalo peque?o, intervalo grande;

                return params;

        }

        public void process(int x, int y) {

        }

        /**

         * Obtiene el tama?o del lado de la ventana

         * @return entero que representa el tama?o del lado de la 

         * ventana en p?xeles

         */

        public int getSideWindow() {

                return sideWindow;

        }

}