Application: gvSIG desktop

/* 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.raster.buffer;

import junit.framework.TestCase;

import org.gvsig.raster.RasterLibrary;

import org.gvsig.raster.dataset.IBuffer;

import org.gvsig.raster.dataset.InvalidSetViewException;

import org.gvsig.raster.dataset.MultiRasterDataset;

import org.gvsig.raster.dataset.NotSupportedExtensionException;

import org.gvsig.raster.dataset.io.RasterDriverException;

/**

 * Prueba del acceso a datos usando el flag setAdjustToExtent a true. Esto consigue que 

 * no se ajuste la petici?n a los margenes del raster sino que se dibuje dentro y el resto 

 * se rellene con valores NoData.

 * 

 * @author Nacho Brodin (nachobrodin@gmail.com)

 *

 */

public class TestAdjustToExtent extends TestCase{

        private String baseDir = "./test-images/";

        private String path = baseDir + "miniRaster25x24.tif";

        private MultiRasterDataset f = null;        

        private BufferFactory ds = null;

        public void start(){

                this.setUp();

                this.testStack();

        }

        public void setUp() {

                System.err.println("TestAdjustToExtent running...");

        }

        static{

                RasterLibrary.wakeUp();

        }

        public void testStack(){

                int[] drawableBands = {0, 1, 2};

                try {

                        f = MultiRasterDataset.open(null, path);

                } catch (NotSupportedExtensionException e) {

                        e.printStackTrace();

                        return;

                } catch (RasterDriverException e) {

                        e.printStackTrace();

                        return;

                }

                ds = new BufferFactory(f);

                ds.setDrawableBands(drawableBands);

                try {

                        ds.setAdjustToExtent(false);

                        ds.setAreaOfInterest(645800.0, 4923870.0, 645830.0, 4923820, 10, 10); //Inferior derecha

                        //ds.setAreaOfInterest(645830.0, 4923870.0, 645880.0, 4923820, 10, 10); //Inferior izquierda

                } catch (InvalidSetViewException e) {

                        e.printStackTrace();

                } catch (InterruptedException e) {

                        e.printStackTrace();

                } catch (RasterDriverException e) {

                        e.printStackTrace();

                        return;

                }

                //print();

                dataTest1();

        }

        private void dataTest1(){

                IBuffer raster = ds.getRasterBuf();

                //Upper Left

                assertEquals((int)(raster.getElemByte(4, 7, 0) & 0xff), 97);

                assertEquals((int)(raster.getElemByte(4, 7, 1) & 0xff), 101);

                assertEquals((int)(raster.getElemByte(4, 7, 2) & 0xff), 68);

        }

        /**

         * Imprime todos los pixels de la fuente de datos en RGB

         */

        /*private void print(){

                IBuffer raster = ds.getRasterBuf();

                for(int line = 0; line < raster.getHeight(); line++){

                        for(int col = 0; col < raster.getWidth(); col++)

                                System.out.print("(" + (int)(raster.getElemByte(line, col, 0) & 0xff) + " " + (int)(raster.getElemByte(line, col, 1) & 0xff) + " " + (int)(raster.getElemByte(line, col, 2) & 0xff) + ")");

                        System.out.println();

                }

        }*/

}