Application: gvSIG desktop » gvSIG raster

package org.gvsig.jgdal;

import java.io.IOException;

import junit.framework.TestCase;

/**

 * Test de acceso a datos de las bandas de una imagen.

 * @author Miguel ?ngel Querol Carratal? <miguelangel.querol@iver.es>

 *

 */

public class TestReadBandData extends TestCase{

        private Gdal gdal = null;

        private GdalRasterBand band = null;

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

        private String file1 = baseDir + "testGdal.tif";

        public void start(){

                try {

                        setUp();

                        testStack();

                } catch (GdalException e) {

                        e.printStackTrace();

                } catch (IOException e) {

                        e.printStackTrace();

                }

        }

        public void setUp() throws GdalException, IOException{

                gdal = new Gdal();

                gdal.open(file1, Gdal.GA_Update);

        }

        public void testStack() throws GdalException, IOException{

                //Llamada sin dominio

                String[] metadata = gdal.getMetadata();

                assertNotNull("No se han devuelto metadatos", metadata);

                for (int i = 0 ; i<metadata.length ; i++){

                        System.out.println("Metadato: " + metadata[i]);

                }

                //Llamada con dominio "Image Structure Metadata"

                metadata = gdal.getMetadata("Image Structure Metadata");

                assertNotNull("No se han devuelto metadatos", metadata);

                for (int i = 0 ; i<metadata.length ; i++){

                        System.out.println("Metadato: " + metadata[i]);

                }

                //Comprobaci?n del tama?o de la imagen

                assertEquals(842, gdal.getRasterXSize());

                assertEquals(1023, gdal.getRasterYSize());

                //Comprobaci?n del n?mero de bandas

                assertEquals(4, gdal.getRasterCount());

                //Comprobaci?n del driver de la imagen

                assertEquals("GTiff", gdal.getDriverShortName());

                //Comprobaci?n del acceso a las bandas

                for (int i = 0 ; i < gdal.getRasterCount() ; i++){

                        assertNotNull(gdal.getRasterBand(i+1));

                }

        }

}