Application: gvSIG desktop » gvSIG raster

import java.io.IOException;

import org.gvsig.jgdal.*;

/**

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

 * javac -classpath ./:/.../org.gvsig.jgdal/target/org.gvsig.jgdal-2.0.3-SNAPSHOT.jar TestReadBand.java

 * 

 * java -classpath ./:/.../org.gvsig.jgdal/target/org.gvsig.jgdal-2.0.3-SNAPSHOT.jar -Djava.library.path=/... TestReadBand

 * @author Nacho Brodin <nachobrodin@gmail.com>

 *

 */

public class TestReadBand {

        private Gdal gdal = null;

        private GdalRasterBand band = null;

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

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

        public static void main(String[] args) {

                TestReadBand t = new TestReadBand();

                try {

                t.testStack();        

                } catch(Exception e) {

                }

        }

        public void testStack() throws GdalException, IOException {

                gdal = new Gdal();

                gdal.open(file1, Gdal.GA_Update);

                //Llamada sin dominio

                String[] metadata = gdal.getMetadata();

                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");

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

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

                }

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

                System.out.println(gdal.getRasterXSize());

                System.out.println(gdal.getRasterYSize());

                //Comprobaci?n del n?mero de bandas

                System.out.println("Bands: " + gdal.getRasterCount());

                //Comprobaci?n del driver de la imagen

                System.out.println("Driver: " + gdal.getDriverShortName());

                //Comprobaci?n del acceso a las bandas

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

                        GdalRasterBand b = gdal.getRasterBand(i+1);

                        System.out.println("Band:" + i + "  X:" + b.getRasterBandXSize());

                        System.out.println("Band:" + i + "  Y:" + b.getRasterBandYSize());

                        System.out.println("Overviews Band:" + i + " " + b.getOverviewCount());

                        for (int j = 0 ; j < b.getOverviewCount() ; j++) {

                                GdalRasterBand ov = b.getOverview(j);

                                System.out.println("    " + ov.getRasterBandXSize() + " x " + ov.getRasterBandYSize());

                        }

                }

        }

}