LongvolWriter.ih

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

// IMPLEMENTATION of inline methods.


namespace DGtal {
  template<typename I,typename C>
  bool
  LongvolWriter<I,C>::exportLongvol(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());

        //Longvol format
        out << "X: "<< ext[0]<<endl;
        out << "Y: "<< ext[1]<<endl;
        out << "Z: "<< ext[2]<<endl;
        out << "Lvoxel-Size: 4"<<endl; //not used in liblongvol but required
        out << "Alpha-Color: 0"<<endl;
        out << "Lvoxel-Endian: 0"<<endl;//not used in liblongvol but required
        out << "Int-Endian: 0123"<<endl;
        out << "Version: 2"<<endl;
        out << "."<<endl;
      
        out.close(); 
        out.open(filename.c_str(),ios_base::binary | ios_base::app);
        //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) );
            write_word(out,aFunctor(val));
          }
      
        out.close();

      }
    catch( ... )
      {
        std::cout << "LongVol writer IO error on export " << filename << endl;
        throw dgtalio;
      }
    
    return true;
  }

}//namespace