Application: gvSIG desktop

/**********************************************************************

 * $Id: Example.java 840 2005-01-10 14:12:36Z igbrotru $

 *

 * Name:     Example.java

 * Project:  

 * Purpose:  

 * Author:   Nacho Brodin, brodin_ign@gva.es

 *

 **********************************************************************/

import es.gva.cit.jmrsid.*;

import java.io.*;

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 informaci?n de georeferenciaci?n

                           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 informaci?n de georeferenciaci?n

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

                           LTIScene scene=new LTIScene(0,0,tamx,tamy,1.0);

                           LTISceneBuffer buffer=new LTISceneBuffer(pixel,tamx,tamy,1);

                           ((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);

                          }

           }catch(Exception e){

                           e.printStackTrace();

           }

        }  

}