VolWriter.ih

#include <cstdlib>
#include <fstream>
#include "DGtal/io/Color.h"

// IMPLEMENTATION of inline methods.


namespace DGtal {
  template<typename I,typename F>
  bool
  VolWriter<I,F>::exportVol(const std::string & filename, const I & aImage,
                            const Functor & aFunctor) throw(DGtal::IOException)
  {
    DGtal::IOException dgtalio;
  
    ofstream out;
    typename I::Domain::Vector ext = aImage.extent();
    typename I::Domain domain = aImage.domain();
    typename I::Value val;
    
    try
      {
        out.open(filename.c_str());

        //Vol format
        out << "X: "<< ext[0]<<endl;
        out << "Y: "<< ext[1]<<endl;
        out << "Z: "<< ext[2]<<endl;
        out << "Voxel-Size: 1"<<endl;
        out << "Alpha-Color: 0"<<endl;
        out << "Voxel-Endian: 0"<<endl;
        out << "Int-Endian: 0123"<<endl;
        out << "Version: 2"<<endl;
        out << "."<<endl;
        
        //We scan the domain instead of the image because we cannot
        //trust the image container Iterator
        for(typename I::Domain::ConstIterator it = domain.begin(), itend=domain.end();
            it!=itend;
            ++it)
          {
            val = aImage( (*it) );
            out.put(aFunctor(val));
          }
        
        out.close(); 
      
      }
    catch( ... )
      {
        std::cout << "Vol writer IO error on export " << filename << endl;
        throw dgtalio;
      }
    return true;
  }

}//namespace