/**********************************************************************
 * $Id$
 *
 * Name:     Example.java
 * Project:  
 * Purpose:  
 * Author:   Nacho Brodin, brodin_ign@gva.es
 *
 **********************************************************************/
/* gvSIG. Sistema de Información Geográfica de la Generalitat Valenciana
*
* Copyright (C) 2004 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.
*
* For more information, contact:
*
*  Generalitat Valenciana
*   Conselleria d'Infraestructures i Transport
*   Av. Blasco Ibáñez, 50
*   46010 VALENCIA
*   SPAIN
*
*      +34 963862235
*   gvsig@gva.es
*      www.gvsig.gva.es
*
*    or
*
*   IVER T.I. S.A
*   Salamanca 50
*   46005 Valencia
*   Spain
*
*   +34 963163400
*   dac@iver.es
*/

import es.gva.cit.jmrsid.*;
import java.io.*;

/**
 * Genera una imagen .raw a partir de un mrsid. Hay que definir el tamaño de la ventana que
 * queremos convertir pasando el ancho y el alto. Además mostrará alguna información sobre la
 * imagen.
 * 
 * @author Nacho Brodin <brodin_ign@gva.es>.<BR> Equipo de desarrollo gvSIG.<BR> http://www.gvsig.gva.es
 * @version 0.0
 * @link http://www.gvsig.gva.es
 */
public class Example {
	public static void main(String[] args){
 
		
	   LTIImageReader img;
	   LTIMetadataDatabase metadata;
	   LTIPixel pixel;
	   int eColorSpace, nBands, eSampleType;
	   
	   int tamx=Integer.parseInt(args[1]);
	   int tamy=Integer.parseInt(args[2]);
	   int siz = tamx * tamy * 1;
	   
	   
	   try{
	   		img = new MrSIDImageReader(args[0]);
	   		img.initialize();
	   		
	   		int overviews=((MrSIDImageReader)img).getNumLevels()-1;
	   		System.out.println("Overviews="+overviews);
	   		System.out.println("Width="+img.getWidth());
	   		System.out.println("Height="+img.getHeight());
	   		System.out.println("Stripsheigth="+img.getStripHeight());
	   		nBands=img.getNumBands();
	   		System.out.println("NumBands="+nBands);
	   		eColorSpace=img.getColorSpace();
	   		System.out.println("ColorSpace="+eColorSpace);
	   		eSampleType=img.getDataType();
	   		System.out.println("DataType="+eSampleType);
	   		pixel=new LTIPixel(eColorSpace, nBands, eSampleType);
	   		int[] dimsAtMag=img.getDimsAtMag(0.5);
	   		System.out.println("Dims At Mag 0,5="+dimsAtMag[0]+" "+dimsAtMag[1]);
	   			   	
	   		
	   		System.out.println("************************************"); 		
	   		
	   		//Acceso a metadatos
	   		
	   		metadata=img.getMetadata();

	   		System.out.println("Metadatos="+metadata.getIndexCount());
	   		for (int i=0; i<metadata.getIndexCount(); i++)
	   		{
	   	      LTIMetadataRecord rec = null;
	   	      rec = metadata.getDataByIndex(i);
	   	      System.out.println(rec.getTagName());
	   	      
	   	      //System.out.print("Dims="+rec.getNumDims());
	   	      //int[] longitudes=rec.getDims();
	   	      //for(int j=0;j<rec.getNumDims();j++)
	   	      //System.out.print("Dim["+j+"]="+longitudes[j]);
	   	      //System.out.println("");		
	   	      
	   	      if(rec.isScalar())System.out.println(rec.getScalarData());
	   	      else if(rec.isVector()){
	   	      	String[] s = rec.getVectorData();
	   	      	for(int j=0;j<s.length;j++)System.out.println("V"+j+"->"+s[j]);
	   	      }else if(rec.isArray()){
	   	      	String[] s = rec.getArrayData();
	   	      	for(int j=0;j<s.length;j++)System.out.println("A"+j+"->"+s[j]);
	   	      }
	   	      
	   	      else System.out.println("");
	   	    }
	   		
	   		//Fin metadatos
	   		
	   		System.out.println("************************************");
	   		
	   		//Acceso a la información de georeferenciación
	   		
	   		LTIGeoCoord geoc = img.getGeoCoord();
	   	    System.out.println("X="+geoc.getX());
	   	    System.out.println("Y="+geoc.getY());
	   	    System.out.println("XRes="+geoc.getXRes());
	   	    System.out.println("YRes="+geoc.getYRes());
	   	    System.out.println("XRot="+geoc.getXRot());
	   	    System.out.println("YRot="+geoc.getYRot());
	   		
	   	    //Fin de acceso a la información de georeferenciación
	   	    
	   	    System.out.println("************************************");
	   		
	   		LTIScene scene=new LTIScene(0,0,tamx,tamy,1.0);
	   		LTISceneBuffer buffer=new LTISceneBuffer(pixel,tamx,tamy,true);
	   		((LTIImageStage)img).read(scene,buffer);
	   		
	   		FileOutputStream s=null;
	   		
	   		try{
		       File mifichero=new File("exit.raw");
		       s = new FileOutputStream(mifichero);
	   		}catch(Exception e){}
	   		
	   		
	   		try{
	   			for(int j=0;j<buffer.size;j++){
	   				s.write(buffer.buf1,j,1);
	   				s.write(buffer.buf2,j,1);
	   				s.write(buffer.buf3,j,1);
	   			}
	  		}catch(IOException e){
	  			System.out.println("Error writing a line in the file\n");	
	  			System.exit(1);
	  		}
	  		
	   		img.close();
			
	   		
	   }catch(Exception e){
	   		e.printStackTrace();
	 
	   }
	   
	  
	  
	}  
}