Application: gvSIG desktop » gvSIG raster

<?xml version="1.0" encoding="UTF-8"?>

<projectDescription>

	<name>org.gvsig.jgdal</name>

	<comment></comment>

	<projects>

	</projects>

	<buildSpec>

	</buildSpec>

	<natures>

	</natures>

</projectDescription>

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());

			}

		}

	}

}

package org.gvsig.addo;

import java.io.IOException;

import junit.framework.TestCase;

import org.gvsig.jgdal.Gdal;

import org.gvsig.jgdal.GdalException;

/**

 * Test para la generacion de overviews sobre una imagen raster.

 * Registra un listener para mostrar el incremento de la tarea.

 *

 * 18-nov-2007

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

 */

public class TestBuildOverviews extends TestCase implements IOverviewIncrement {

	private int value = 0;

	private Jaddo addo = null;

	private Gdal gdal = null;

	private String path = "./test-images/testGdalWarp.tif";

	public void start(){

		setUp();

		testStack();

	}

	public void setUp(){

		addo = new Jaddo();

		addo.setIncrementListener(this);

		gdal = new Gdal();

	}

	public void testStack(){

		try {

			addo.buildOverviews(Jaddo.AVERAGE, path, new int[]{2, 4, 8, 16});

			gdal.open(path, Gdal.GA_ReadOnly);

			assertTrue("No hay overviews!!", gdal.getRasterBand(1).getOverviewCount()>0);

		} catch (BuildingOverviewsException e) {

			System.err.println(e);

		} catch (WritingException e) {

			System.err.println(e);

		} catch (GdalException e) {

			e.printStackTrace();

		} catch (IOException e) {

			e.printStackTrace();

		}

	}

	public int getPercent() {

		return value;

	}

	public void setPercent(int value) {

		this.value = value;

		System.out.println("Increment:" + value);

	}

}

/* 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.jgdal;

public class GdalColorTable extends JNIBase {

	private native int getColorEntryCountNat(long cPtr);

	private native short[] getColorEntryAsRGBNat(long cPtr, int pos);

	/**

	 * Constructor de ColorTable pasandole como par?metro la referencia al objeto 

	 * GdalColorTable en C

	 * 

	 * @param cPtr	direcci?n de memoria del objeto 

	 */

	public GdalColorTable(long cPtr){

		this.cPtr=cPtr;

	}

	/**

	 * Obtiene

	 * @return

	 * @throws GdalException

	 */

	public int getColorEntryCount() throws GdalException{

		if (cPtr == 0)

	    	throw new GdalException("No se ha podido acceder al archivo.");

		return getColorEntryCountNat(cPtr);

	}

	/**

	 * Obtiene la entrada de la tabla de color de la posici?n pasada por par?metro

	 * y la devuelve en forma de objeto GdalColorEntry.

	 * @param pos Posici?n de la entrada de la tabla

	 * @return Objeto GdalColorEntry correspondiente a pos

	 * @throws GdalException

	 */

	public GdalColorEntry getColorEntryAsRGB(int pos) throws GdalException{

		if (cPtr == 0)

	    	throw new GdalException("No se ha podido acceder al archivo.");

		if ((pos < 0) || (pos >= getColorEntryCount()))

			throw new GdalException("Entrada de la tabla de color fuera de rango");

		GdalColorEntry entry = new GdalColorEntry();

		short[] values =  getColorEntryAsRGBNat(cPtr, pos);

		entry.c1 = values[0];

		entry.c2 = values[1];

		entry.c3 = values[2];

		entry.c4 = values[3];

		if(values == null)

			throw new GdalException("Error en getColorEntryAsRGB(). Posici?n de la tabla de color inexistente.");

		return entry;

	}

}

/* 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.jgdal;

/**  

 * Buffer para el almacenamiento de l?neas de la im?g?n. Esta clase es instanciada desde C para que se pueda acceder a sus datos desde el cliente java.

 * 

 * @author Nacho Brodin (nachobrodin@gmail.com).<BR> Equipo de desarrollo gvSIG.<BR> http://www.gvsig.gva.es

 * @version 0.0

 * @link http://www.gvsig.gva.es

 */

public class GdalBuffer{

    public byte[] buffByte;			//8 bits

    public short[] buffShort;		//16 bits

    public int[] buffInt;			//32 bits

    public float[] buffFloat;		//32 bits

    public double[] buffDouble;		//64 bits

    public byte[] buffAPalette;

    public byte[] buffRPalette;

    public byte[] buffGPalette;

    public byte[] buffBPalette;

    public void reservaByte(int r){

    	//buffByte = new byte[r];

    }

    public void reservaShort(int r){

    	//buffShort = new short[r];

    }

    public void reservaInt(int r){

    	//buffInt = new int[r];

    }

    public void reservaFloat(int r){

    	//buffFloat = new float[r];

    }

    public void reservaDouble(int r){

    	//buffDouble = new double[r];

    }

    public void reservaPalette(int r){

    	/*buffAPalette = new byte[r];

    	buffRPalette = new byte[r];

        buffGPalette = new byte[r];

        buffBPalette = new byte[r];*/

    }

    public int getSize(){

      for(int i=0;i<5;i++){

      	if(buffByte!=null)return buffByte.length;

    	if(buffShort!=null)return buffShort.length;

    	if(buffInt!=null)return buffInt.length;

    	if(buffFloat!=null)return buffFloat.length;

    	if(buffDouble!=null)return buffDouble.length;

    	if(buffRPalette!=null)return buffRPalette.length;

      }

      return 0;

    }

}

/* 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.jgdal;

/**

 * Contiene las funcionalidades necesarias para el acceso a los

 * elementos de un dataset de gdal correspondiente a una im?gen 

 * 

 * @author Nacho Brodin (nachobrodin@gmail.com).<BR> Equipo de desarrollo gvSIG.<BR> http://www.gvsig.gva.es

 * @link http://www.gvsig.gva.es

 */

public class GdalGCP extends JNIBase{

	private native long GdalGCPNat();

	private native long GdalGCPPointsNat(	double pixelXGCP, 

											double pixelYGCP,

											double mapXGCP,

											double mapYGCP,

											double mapZGCP);

	private native void FreeGdalGCPNat();

	private String id; 			//identificador 

	private String info;		//informaci?n

	private double pixelXGCP;	/** Pixel (x) location of GCP on raster */

	private double pixelYGCP;	/** Line (y) location of GCP on raster */

	private double mapXGCP;		/** X position of GCP in georeferenced space */

	private double mapYGCP; 	/** Y position of GCP in georeferenced space */

	private double mapZGCP;		/** Elevation of GCP, or zero if not known */

	/**

	 * Constructor

	 */

	public GdalGCP(){

		cPtr = this.GdalGCPNat();

	}

	/**

	 * Constructor

	 * @param pixelXGCP

	 * @param pixelYGCP

	 * @param mapXGCP

	 * @param mapYGCP

	 * @param mapZGCP

	 */

	public GdalGCP(	double pixelXGCP, 

					double pixelYGCP,

					double mapXGCP,

					double mapYGCP,

					double mapZGCP){

		this.pixelXGCP = pixelXGCP;  

		this.pixelYGCP = pixelYGCP;

		this.mapXGCP = mapXGCP; 

		this.mapYGCP = mapYGCP;

		this.mapZGCP = mapYGCP;

	}

	protected void finalize(){

	}

	/**

	 * @return Returns the mapXGCP.

	 */

	public double getMapXGCP() {

		return mapXGCP;

	}

	/**

	 * @param mapXGCP The mapXGCP to set.

	 */

	public void setMapXGCP(double mapXGCP) {

		this.mapXGCP = mapXGCP;

	}

	/**

	 * @return Returns the mapYGCP.

	 */

	public double getMapYGCP() {

		return mapYGCP;

	}

	/**

	 * @param mapYGCP The mapYGCP to set.

	 */

	public void setMapYGCP(double mapYGCP) {

		this.mapYGCP = mapYGCP;

	}

	/**

	 * @return Returns the mapZGCP.

	 */

	public double getMapZGCP() {

		return mapZGCP;

	}

	/**

	 * @param mapZGCP The mapZGCP to set.

	 */

	public void setMapZGCP(double mapZGCP) {

		this.mapZGCP = mapZGCP;

	}

	/**

	 * @return Returns the pixelXGCP.

	 */

	public double getPixelXGCP() {

		return pixelXGCP;

	}

	/**

	 * @param pixelXGCP The pixelXGCP to set.

	 */

	public void setPixelXGCP(double pixelXGCP) {

		this.pixelXGCP = pixelXGCP;

	}

	/**

	 * @return Returns the pixelYGCP.

	 */

	public double getPixelYGCP() {

		return pixelYGCP;

	}

	/**

	 * @param pixelYGCP The pixelYGCP to set.

	 */

	public void setPixelYGCP(double pixelYGCP) {

		this.pixelYGCP = pixelYGCP;

	}

}

/* 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.jgdal;

import java.util.ArrayList;

/**

 * Clase que recubre la funci?n de reproyecci?n de gdal.

 *  

 * @author Miguel ?ngel Querol Carratal?

 */

public class GdalWarp extends JNIBase {

	private int    porcentaje;

	/**

	 * Par?metros de la operaci?n de reproyecci?n

	 */

	private String s_srs = null;

	/**

	 * M?todo nativo para el warp desde gdal.

	 */

	private native int warpDataset(String s_srs, String t_srs, String source, String dest, String format);

	/**

	 * Constructor generico.

	 */

	public GdalWarp() {}

	/**

	 * Reproyecta una imagen raster, creando una imagen de salida

	 * @param proj EPSG:code o proj4

	 * @param source Ruta del fichero fuente

	 * @param dest Ruta del fichero destino

	 * @param format

	 * @return 0 si ha ocurrido algun error o 1 si la ejecuci?n ha sido correcta.

	 * @throws GdalException

	 */

	public int warp(String t_srs, String source, String dest, String format) {

		int stat = warpDataset(s_srs, t_srs, source, dest, format);

		return stat;

	}

	/**

	 * Indica la proyecci?n del dataset origen

	 * @param s_srs

	 */

	public void setSsrs(String s_srs) {

		this.s_srs = s_srs;

	}

	/**

	 * Obtiene el porcentaje de proceso que se ha completado

	 */

	public int getPercent() {

		return porcentaje;

	}

	/**

	 * Devuelve la lista de drivers que usa GdalWarp para reproyectar

	 * @return

	 */

	static public ArrayList getDrivers() {

		ArrayList list = new ArrayList();

		list.add("GTiff");

		list.add("VRT");

		list.add("NITF");

		list.add("HFA");

		list.add("ELAS");

		list.add("MEM");

		list.add("BMP");

		list.add("PCIDSK");

		list.add("ILWIS");

		String os = System.getProperty("os.name");

		if (!os.toLowerCase().startsWith("windows"))

			list.add("HDF4Image");

		list.add("PNM");

		list.add("ENVI");

		list.add("EHdr");

		list.add("PAux");

		list.add("MFF");

		list.add("MFF2");

		list.add("BT");

		list.add("IDA");

		list.add("RMF");

		list.add("RST");

		list.add("Leveller");

		list.add("Terragen");

		list.add("ERS");

		list.add("INGR");

		list.add("GSAG");

		list.add("GSBG");

		list.add("ADRG");

		return list;

	}

}

/* 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.jgdal;

import java.io.File;

import java.util.StringTokenizer;

/**

 * Representa un driver de un tipo de im?gen 

 * 

 * @author Nacho Brodin (nachobrodin@gmail.com).<BR> Equipo de desarrollo gvSIG.<BR> http://www.gvsig.gva.es

 * @version 0.0

 * @link http://www.gvsig.gva.es

 */

public class GdalDriver extends JNIBase {

	private native long createCopyNat(long cPtr, String file, long src, int bstrict);

	private native long createCopyParamsNat(long cPtr, String file, long src, int bstrict, Options opc);

	private native long createNat(long cPtr, String filename, int nXSize, int nYSize, int nBands, int nType, Options opc);

	/**

	 * Constructor de Driver pasandole como par?metro la referencia al objeto 

	 * GdalDriver en C

	 * 

	 * @param cPtr	direcci?n de memoria del objeto 

	 */

	public GdalDriver(long cPtr) {

		this.cPtr=cPtr;

	}

	/**

	 * Crea una copia de una im?gen a partir de un dataset de origen especificado.

	 * @param file	Nombre del fichero sobre el cual se guardar? la copia

	 * @param src	Dataset fuente a copiar

	 * @param bstrict	TRUE si la copia debe ser estrictamente equivalente y FALSE indica que la copia puede

	 * adaptarse a las necesidades del formato de salida

	 * @return Gdal	Dataset de la im?gen de salida

	 * @throws GdalException

	 */

	public Gdal createCopy(String file, Gdal src, boolean bstrict) throws GdalException {

		String path = file.substring(0, file.lastIndexOf(File.separator));

		File f = new File(path);

		if (!f.canWrite())

			throw new GdalException("Ruta de archivo incorrecta.");

		f = null;

		if (src == null)

			throw new GdalException("El objeto Gdal es null");

		if (cPtr == 0)

			throw new GdalException("No se ha podido acceder al archivo.");

		long ptr = createCopyNat(cPtr, file, src.getPtro(), bstrict ? 1 : 0);

//		if (ptr == 0)

//			throw new GdalException("No se ha podido crear la copia");

		return (new Gdal(ptr));

	}

	/**

	 * A partir de las opciones en forma de vector de Strings pasadas por el usuario donde cada

	 * elemento del vector tiene la forma VARIABLE=VALOR crea el objeto Options para que sea accesible

	 * a las funciones JNI desde C.

	 * @param params	Vector de strigs con las opciones

	 * @return Options	Objeto de opciones

	 */

	private Options selectOptions(String[] params) {

		if (params == null)

			return null;

		Options opc = new Options(params.length);

		StringTokenizer st;

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

			st = new StringTokenizer(params[i], "=");

			String var = st.nextToken();

			String dato = st.nextToken();

			opc.addOption(var, dato);

		}

		return opc;

	}

	/**

	 * Crea una copia de una im?gen a partir de un dataset de origen especificado y unos par?metros dados.

	 * @param file	Nombre del fichero sobre el cual se guardar? la copia

	 * @param src	Dataset fuente a copiar

	 * @param bstrict	TRUE si la copia debe ser estrictamente equivalente y FALSE indica que la copia puede

	 * adaptarse a las necesidades del formato de salida

	 * @param params	Vector de strigs con las opciones de la copia

	 * @return Gdal	Dataset de la im?gen de salida

	 * @throws GdalException

	 */

	public Gdal createCopy(String file, Gdal src, boolean bstrict, String[] params) throws GdalException {

		String path = file.substring(0, file.lastIndexOf(File.separator));

		File f = new File(path);

		if (!f.canWrite())

			throw new GdalException("Ruta de archivo incorrecta.");

		f = null;

		if (cPtr == 0)

			throw new GdalException("No se ha podido acceder al archivo.");

		if (src == null)

			throw new GdalException("El objeto Gdal es null");

		long ptr = createCopyParamsNat(cPtr, file, src.getPtro(), bstrict ? 1 : 0, selectOptions(params));

		if (ptr == 0)

			throw new GdalException("No se ha podido crear la copia");

		return (new Gdal(ptr));

	}

	/**

	 * Crea un nuevo dataset con el driver actual

	 * 

	 * @param filename	Nombre del dataset a crear

	 * @param nXSize	Ancho en pixels

	 * @param nYSize	Alto en pixels

	 * @param nBands	N?mero de bandas

	 * @param nType	Tipo de raster

	 * @param params	lista de par?metros especificos del driver

	 */

	public Gdal create(String filename, int nXSize, int nYSize, int nBands, int nType, String[] params) throws GdalException {

		if (cPtr == 0)

			throw new GdalException("No se ha podido acceder al archivo.");

		long ptr = createNat(cPtr, filename, nXSize, nYSize, nBands, nType, selectOptions(params));

		return (new Gdal(ptr));

	}

}

/* 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.jgdal;

/**

 * Es generada cuando los c?digos de retorno de las funciones de Gdal significan que algo ha ido mal.

 * 

 * @author Nacho Brodin (nachobrodin@gmail.com).<BR> Equipo de desarrollo gvSIG.<BR> http://www.gvsig.gva.es

 * @version 0.0

 * @link http://www.gvsig.gva.es

 */

public class GdalException extends Exception{

	public GdalException(String msg){

		super(msg);

	}

}

/* 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.jgdal;

/**

 * Buffer para el almacenamiento de los datos de georeferenciaci?n.

 * 

 * @author Nacho Brodin (nachobrodin@gmail.com).<BR> Equipo de desarrollo gvSIG.<BR> http://www.gvsig.gva.es

 * @version 0.0

 * @see http://www.gvsig.gva.es

 * @link http://www.gvsig.gva.es

 */

public class GeoTransform{

   public double adfgeotransform[]=new double[6];   

}

/* 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.jgdal;

import java.io.File;

import java.io.IOException;

/**

 * Contiene las funcionalidades necesarias para el acceso a los elementos de un

 * dataset de gdal correspondiente a una imagen

 * 

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

 */

public class Gdal extends JNIBase {

	// CONSTANTES

	// GDALAccess

	public static int GA_ReadOnly   = 0;

	public static int GA_Update     = 1;

	// GDALDataType

	public static int GDT_Unknown   = 0;

	public static int GDT_Byte      = 1; // Buffer byte (8)

	public static int GDT_UInt16    = 2; // Buffer short (16)

	public static int GDT_Int16     = 3; // Buffer short (16)

	public static int GDT_UInt32    = 4; // Buffer int (32)

	public static int GDT_Int32     = 5; // Buffer int (32)

	public static int GDT_Float32   = 6; // Buffer float (32)

	public static int GDT_Float64   = 7; // Buffer double (64)

	public static int GDT_CInt16    = 8; // Buffer short (16)

	public static int GDT_CInt32    = 9; // Buffer int (32)

	public static int GDT_CFloat32  = 10; // Buffer float (32)

	public static int GDT_CFloat64  = 11; // Buffer double (64)

	public static int GDT_TypeCount = 12;

	private String    pszFilename   = "";

	private native long openNat(String pszFilename, int access);

	private native long openArrayNat(byte[] pszFilename, int access);

	private native int getGeoTransformNat(long cPtr, GeoTransform adfgeotransform);

	private native int setGeoTransformNat(long cPtr, GeoTransform adfgeotransform);

	private native String[] getMetadataNat(long cPtr, String pszDomain);

	private native String getProjectionRefNat(long cPtr);

	private native void closeNat(long cPtr);

	private native long getRasterBandNat(long cPtr, int hBand);

	private native int setProjectionNat(long cPtr, String proj);

	private native String getDriverShortNameNat(long cPtr);

	//private static native long getGDALDriverManagerNat(); 

	private static native long getDriverByNameNat(String name);

	private native String getColorInterpretationNameNat(long cPtr, int colorInterp);

	/**

	 *Constructor a partir de la direcci?n de memoria 

	 */

	public Gdal(long cPtr){

		this.cPtr=cPtr;

	}

	/**

	 *Constructor generico

	 */

	public Gdal(){}

	/**

	 * Devuelve la direcci?n de memoria del objeto dataset en C.

	 */

	public long getPtro(){return cPtr;}

	/**

	 * Abre el fichero de imagen.

	 *

	 * @param pszFilename	Nombre del fichero.

	 * @param access	Apertura en solo lectura o escritura.

	 * @throws GdalException

	 */

	public void open(String pszFilename, int access)throws GdalException, IOException {

		if ((access < 0) || (access > 1))

			throw new GdalException("Tipo de acceso al dataset incorrecto");

		cPtr = openArrayNat(pszFilename.getBytes(), access);

		if (cPtr == 0)

			throw new GdalException("No se ha podido acceder al archivo.");

	}

	/**

	 * Obtiene un array de Strings con los metadatos

	 * 

	 * @throws GdalException

	 * @return Array de Strings que corresponden a los metadatos que ofrece la imagen

	 */

	public String[] getMetadata()throws GdalException {

		return getMetadata(null);

	}

	/**

	 * Obtiene un array de Strings con los metadatos

	 * 

	 * @throws GdalException

	 * @return Array de Strings que corresponden a los metadatos que ofrece la imagen

	 */

	public String[] getMetadata(String domain)throws GdalException {

		String[] res = getMetadataNat(cPtr, domain);

		if(res == null)

			return new String[0];

		else return res;

	}

	/**

	 * Obtiene el n?mero de bandas de la imagen

	 * 

	 * @throws GdalException

	 * @param hBand	Entero que corresponde al n?mero de banda que se quiere recuperar

	 * @return Objeto GdalRasterBand que representa la banda recuperada	

	 */

	public GdalRasterBand getRasterBand(int hBand)throws GdalException {

		long cPtr_rb;

		if ((hBand < 1) || (hBand > getRasterCount()))

			throw new GdalException("Banda seleccionada incorrecta");

		if (cPtr == 0)

				throw new GdalException("No se ha podido acceder al archivo.");

		cPtr_rb = getRasterBandNat(cPtr,hBand);

		return new GdalRasterBand(cPtr_rb);	

	}

	/**

	 * Obtiene la dimensi?n del raster en el eje X.

	 * 

	 * @return	Devuelve un entero con la longitud de la imagen en el eje X en pixels.

	 * @throws GdalException 

	 */

	public int getRasterXSize()throws GdalException {

		String msg1="Error en GDALGetRasterXSize. La llamada GDALOpen no tuvo ?xito";

		String msg2="Error en tama?o X";

		return baseSimpleFunctions(5,msg1,msg2);

	}

	/**

	 * Obtiene la dimensi?n del raster en el eje Y.

	 * 

	 * @return	Devuelve un entero con la longitud de la imagen en el eje Y en pixels.

	 * @throws GdalException 

	 */

	public int getRasterYSize()throws GdalException {

		String msg1="Error en GDALGetRasterYSize. La llamada GDALOpen no tuvo ?xito";

		String msg2="Error en tama?o Y";

		return baseSimpleFunctions(6,msg1,msg2);

	}

	/**

	 * Obtiene el n?mero de bandas de la imagen

	 * 

	 * @return	Devuelve un entero con el n?mero de bandas que contiene la imagen.

	 * @throws GdalException

	 */

	public int getRasterCount()throws GdalException {

		String msg1="Error en GDALGetRasterCount. . La llamada GDALOpen no tuvo ?xito";

		String msg2="Error en el conteo de n?mero de bandas";

		return baseSimpleFunctions(7,msg1,msg2);

	}

	/**

	 * Obtiene el vector geoTransform de la imagen que contiene los valores Origen y pixelSize

	 * 

	 * @return	Devuelve un vector de doubles que contiene los valores de coordenadas de origen y pixelSize.

	 * @throws GdalException

	 */

	public GeoTransform getGeoTransform()throws GdalException {

		GeoTransform gt=new GeoTransform();

		if (cPtr == 0)

				throw new GdalException("No se ha podido acceder al archivo.");

		if(getGeoTransformNat(cPtr,gt) < 0)

			throw new GdalException("Error en getGeoTransform(). No se han obtenido valores para geoTransform.");

		else{

			return gt;

		}

	}

	/**

	 * Obtiene el Nombre corto asociado al driver del dataset

	 * 

	 * @return	Cadena con el nombre del driver

	 * @throws GdalException

	 */

	public String getDriverShortName()throws GdalException {

		if (cPtr == 0)

				throw new GdalException("No se ha podido acceder al archivo.");

		String shortName = getDriverShortNameNat(cPtr);

		if(shortName == null)

			throw new GdalException("Error en getDriverShortName(). No ha podido obtenerse el driver");

		else 

			return shortName;

	}

	/**

	 * A?ade el vector geoTransform a la imagen que contiene los valores Origen y pixelSize

	 * 

	 * @return	Devuelve un vector de doubles que contiene los valores de coordenadas de origen y pixelSize.

	 * @throws GdalException

	 */

	public void setGeoTransform(GeoTransform gt)throws GdalException {

		if (cPtr == 0)

				throw new GdalException("No se ha podido acceder al archivo.");

		if (gt == null)

			throw new GdalException("el objeto " + gt.getClass().getName() + " es null");

		int res = setGeoTransformNat(cPtr,gt);

	}

	/**

	 * Obtiene el sistema de coordenadas de referencia de la imagen.

	 * 

	 * @return	Devuelve un String con los datos del sistema de coordenadas de referencia.

	 * @throws GdalException

	 */

	public String getProjectionRef()throws GdalException {

		if (cPtr == 0)

				throw new GdalException("No se ha podido acceder al archivo.");

		String res = getProjectionRefNat(cPtr);

		if(res == null)return new String("");

		else return res;

	}

	/**

	 * Cierra el fichero de imagen.

	 *

	 * @throws GdalException 

	 */

	public void close()throws GdalException {

		if (cPtr == 0)

				throw new GdalException("No se ha podido acceder al archivo.");

		closeNat(cPtr);	

	}

	/**

	 * Obtiene un driver a trav?s de su nombre

	 * 

	 * @param name	Nombre del driver

	 */

	public static GdalDriver getDriverByName(String name)throws GdalException {

		long ptrdrv = -1;

		if (name == null)

			throw new GdalException("El nombre del driver es null");

		ptrdrv = getDriverByNameNat(name);

		return (new GdalDriver(ptrdrv));

	}

	/**

	 * Obtiene el numero de bandas de la imagen

	 * 

	 * @return	Devuelve un entero con el numero de bandas que contiene la imagen.

	 * @throws GdalException

	 */

	public int getGCPCount()throws GdalException {

		String msg1="Error en GDALGetRasterCount. . La llamada GDALOpen no tuvo ?xito";

		String msg2="Error en el conteo de n?mero de bandas";

		return baseSimpleFunctions(8,msg1,msg2);

	}

	/**

	 *Asigna la proyecci?n especificada en la cadena que se le pasa por par?metro.

	 *@param proj	proyecci?n

	 *@throws GdalException 

	 */

	public void setProjection(String proj)throws GdalException {

		if (cPtr == 0)

				throw new GdalException("No se ha podido acceder al archivo.");

		if (proj == null)

				throw new GdalException("La proyeccion es null");

		int res = setProjectionNat(cPtr, proj);

		if(res < 0)

			throw new GdalException("Error en setProjection(). No se ha podido asignar la proyecci?n.");

	}

	/**

	 * Obtiene la cadena que representa el tipo de banda de color. Los tipos posibles son:

	 * <UL>

	 *  <LI>0 = "Undefined" </LI>

	 *  <LI>1 = "Gray";</LI>

	 *  <LI>2 = "Palette";</LI>

	 *  <LI>3 = "Red";</LI>

	 *  <LI>4 = "Green";</LI>

	 *  <LI>5 = "Blue";</LI>

	 *  <LI>6 = "Alpha";</LI>

	 *  <LI>7 = "Hue";</LI>

	 *  <LI>8 = "Saturation";</LI>

	 *  <LI>9 = "Lightness";</LI>

	 *  <LI>10 = "Cyan";</LI>

	 *  <LI>11 = "Magenta";</LI>

	 *  <LI>12 = "Yellow";</LI>

	 *  <LI>13 = "Black";</LI>

	 *  <LI>14 = "YCbCr_Y";</LI>

	 *  <LI>15 = "YCbCr_Cb";</LI>

	 *  <LI>16 = "YCbCr_Cr";</LI>

	 * </UL>

	 * @return	Cadena con el nombre del tipo de banda de color

	 * @throws GdalException

	 */

	public String getColorInterpretationName(int colorInterp)throws GdalException {

		if ((colorInterp < 0) || (colorInterp > 16))

			throw new GdalException("Valor de interpretacion de color fuera de rango");

		String bandTypeName = getColorInterpretationNameNat(cPtr, colorInterp);

		if(bandTypeName == null)

			throw new GdalException("Error en getColorInterpretationName(). No ha podido obtenerse el tipo de banda de color");

		else 

			return bandTypeName;

	}	

}

/* 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.jgdal;

/**

 * Clase que representa una entrada de la tabla de color.

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

 *

 */

public class GdalColorEntry{

	 /*! gray, red, cyan or hue */

    public short      c1;      

    /*! green, magenta, or lightness */    

    public short      c2;      

    /*! blue, yellow, or saturation */

    public short      c3;      

    /*! alpha or blackband */

    public short      c4;      

}

/* 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.jgdal;

public class GdalTools {

	static public int CSLFindString(String[] lista, String target) {

		if(lista==null || lista.length==0)return -1;

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

	        if( lista[i].equals(target) )

	            return i;

	    }

	    return -1;

	}

}

/* 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.

* 

*/

/**

 * @author Nacho Brodin <nachobrodin@gmail.com>.<BR> Equipo de desarrollo gvSIG.<BR> http://www.gvsig.gva.es

 * @version 0.0

 * @link http://www.gvsig.gva.es

 */

package org.gvsig.jgdal;

public class JNIBase{

	protected long cPtr;

	private native int getRasterBandXSizeNat(long cPtr);

	private native int getRasterBandYSizeNat(long cPtr);

	private native int getOverviewCountNat(long cPtr);

	private native int getBlockXSizeNat(long cPtr);

	private native int getBlockYSizeNat(long cPtr);

	private native int getRasterXSizeNat(long cPtr);

	private native int getRasterYSizeNat(long cPtr);

	private native int getRasterCountNat(long cPtr);

	private native int getGCPCountNat(long cPtr);

	private native int getRasterDataTypeNat(long cPtr);

	private native int getDriverCountNat(long cPtr);

	private native int getLayerCountNat(long cPtr);

	 /**

	 * Funci?n que sirve como base para funcionalidades de gdal que admiten como par?metro un entero y devuelven un entero.

	 * 

	 * @throws GdalException.

	 * @param msg1	Mensaje de error que se muestra cuando el puntero a objeto pasado es vacio.

	 * @param msg2	Mensaje de error que se muestra cuando el resultado de la llamada a la funci�n de gdal es menor o igual que 0.

	 */

	protected int baseSimpleFunctions(int n,String msg1,String msg2)throws GdalException{

		int res = 0;

		switch(n){

			case 0: res = getRasterBandXSizeNat(cPtr);break;

			case 1: res = getRasterBandYSizeNat(cPtr);break;

			case 2: res = getOverviewCountNat(cPtr);break;

			case 3: res = getBlockXSizeNat(cPtr);break;

			case 4: res = getBlockYSizeNat(cPtr);break;

			case 5: res = getRasterXSizeNat(cPtr);break;

			case 6: res = getRasterYSizeNat(cPtr);break;

			case 7: res = getRasterCountNat(cPtr);break;

			case 8: res = getGCPCountNat(cPtr);break;

			case 9: res = getRasterDataTypeNat(cPtr);break;

		}

		if (res < 0)

			throw new GdalException(msg2);

		else

			return res;

	}

	static {

		/*String os = System.getProperty("os.name");

		if (os.toLowerCase().startsWith("windows"))

			System.loadLibrary("jgdal201");

		else*/

			System.loadLibrary("jgdal2.0.4");

	}

}

/* 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.

* 

*/