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.NotSupportedExtensionException;

import org.gvsig.raster.dataset.RasterDataset;

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

/**

 * Este test prueba el acceso a datos a traves de un DataSource sin resampleo

 * para un ECW con coordenadas reales. 

 * 

 * Lee el raster completo y comprueba que los datos leidos sean correctos 

 * comparando los valores de las cuatro esquinas y algunos valores dentro de la imagen.

 * Se lee un ?rea m?s grande que el extent completo del raster para comprobar que el ajuste

 * al extent lo hace correctamente.

 * 

 * Despu?s hace selecciona un ?rea dentro de la imagen de 2x2 y compara que los valores

 * leidos sean correctos.

 * 

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

 *

 */

public class TDSDoubleAdjustToExtentBufferEcw extends TestCase {

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

        private String        path    = baseDir + "miniraster30x30.jp2";

        public void start() {

                this.setUp();

                this.testStack();

        }

        public void setUp() {

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

        }

        static {

                RasterLibrary.wakeUp();

        }

        public void testStack() {

                RasterDataset f;

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

                try {

                        f = RasterDataset.open(null, path);

                } catch (RasterDriverException e) {

                        return;

                } catch (NotSupportedExtensionException e) {

                        return;

                }

                BufferFactory ds = new BufferFactory(f);

                ds.setDrawableBands(drawableBands);

                //Se selecciona un ?rea mayor que el extent para probar que lo ajusta a este 

                try {

                        ds.setAreaOfInterest(645860.0, 4923870.0, 645986.0, 4923744.0, 10, 10);

                } catch (RasterDriverException e) {

                        e.printStackTrace();

                } catch (InvalidSetViewException e) {

                        e.printStackTrace();

                } catch (InterruptedException e) {

                        e.printStackTrace();

                }

//                print(ds.getRasterBuf());

                dataTest1(ds.getRasterBuf());

                try {

                        ds.setAreaOfInterest(645860.0, 4923870.0, 645986.0, 4923744.0, 2, 2);

                } catch (RasterDriverException e) {

                        e.printStackTrace();

                } catch (InvalidSetViewException e) {

                        e.printStackTrace();

                } catch (InterruptedException e) {

                        e.printStackTrace();

                }

//                print(ds.getRasterBuf());

                dataTest2(ds.getRasterBuf());

        }

        private void dataTest1(IBuffer raster) {

                int band0[] = { 43, 14, 87, 166, 174, 109, 90, 93, 190, 143, 85, 93, 103, 112, 138, 94, 138, 192, 180, 196, 99, 209, 41, 98, 168, 170, 89, 141, 158, 199, 108, 71, 67, 92, 131, 176, 243, 98, 163, 141, 157, 170, 94, 159, 233, 114, 144, 62, 147, 173, 159, 173, 184, 94, 56, 18, 69, 78, 83, 115, 95, 37, 80, 57, 68, 68, 55, 59, 58, 101, 69, 44, 24, 58, 115, 40, 58, 56, 68, 111, 84, 117, 55, 88, 170, 135, 169, 99, 74, 42, 114, 223, 171, 67, 216, 104, 167, 83, 66, 45 };

                int band1[] = { 53, 15, 109, 154, 164, 111, 109, 93, 189, 151, 89, 102, 107, 111, 142, 100, 143, 195, 178, 190, 100, 192, 61, 108, 154, 172, 99, 149, 160, 206, 122, 74, 81, 94, 136, 195, 248, 105, 173, 141, 158, 162, 98, 158, 226, 114, 132, 66, 150, 176, 168, 172, 175, 105, 82, 39, 85, 89, 73, 104, 92, 51, 80, 71, 88, 84, 71, 74, 68, 106, 82, 62, 37, 74, 129, 49, 78, 67, 89, 126, 100, 132, 71, 107, 164, 145, 154, 108, 85, 48, 130, 210, 164, 66, 209, 115, 160, 85, 90, 61 };

                int band2[] = { 26, 11, 82, 145, 165, 97, 86, 71, 191, 135, 74, 75, 85, 110, 117, 82, 115, 186, 179, 183, 91, 181, 43, 85, 139, 178, 78, 133, 152, 206, 98, 61, 71, 109, 118, 181, 244, 82, 144, 117, 144, 159, 83, 155, 231, 98, 108, 60, 136, 163, 146, 170, 162, 111, 102, 41, 62, 60, 64, 68, 97, 26, 74, 50, 64, 70, 47, 48, 56, 70, 54, 35, 19, 50, 91, 35, 48, 52, 62, 101, 73, 91, 35, 80, 140, 119, 140, 91, 58, 36, 112, 202, 146, 66, 192, 81, 131, 71, 63, 37 };

                compareRaster(raster, band0, band1, band2);

        }

        private void dataTest2(IBuffer raster) {

                int band0[] = { 43, 109, 160, 18 };

                int band1[] = { 53, 111, 168, 39 };

                int band2[] = { 26, 97, 146, 41 };

                compareRaster(raster, band0, band1, band2);

        }

        public void compareRaster(IBuffer raster, int band0[], int band1[], int band2[]) {

                int cont = 0;

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

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

                                assertEquals((int) (raster.getElemByte(line, col, 0) & 0xff), band0[cont]);

                                assertEquals((int) (raster.getElemByte(line, col, 1) & 0xff), band1[cont]);

                                assertEquals((int) (raster.getElemByte(line, col, 2) & 0xff), band2[cont]);

                                cont++;

                        }

                }

        }

        /**

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

         */

        public void print(IBuffer raster) {

                System.out.println("");

                for (int band = 0; band < 3; band++) {

                        System.out.print("int band" + band + "[] = { ");

                        int cont = 0;

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

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

                                        if (cont != 0)

                                                System.out.print(", ");

                                        System.out.print(((int) (raster.getElemByte(line, col, band) & 0xff)));

                                        cont++;

                                }

                        }

                        System.out.println("};");

                }

        }

}