vol2obj.cpp

#include <iostream>
#include "DGtal/base/Common.h"
#include "DGtal/helpers/StdDefs.h"
#include "DGtal/io/readers/GenericReader.h"
#include "DGtal/io/boards/Board3D.h"
#include "DGtal/io/DrawWithDisplay3DModifier.h"
#include "DGtal/io/readers/PointListReader.h"

#include "DGtal/images/ImageSelector.h"

#include <boost/program_options/options_description.hpp>
#include <boost/program_options/parsers.hpp>
#include <boost/program_options/variables_map.hpp>

using namespace std;
using namespace DGtal;
using namespace Z3i;

namespace po = boost::program_options;

int main( int argc, char** argv )
{
  // parse command line ----------------------------------------------
  po::options_description general_opt("Allowed options are: ");
  general_opt.add_options()
    ("help,h", "display this message")
    ("input,i", po::value<std::string>(), "vol file (.vol) , pgm3d (.p3d or .pgm3d, pgm (with 3 dims)) file or sdp (sequence of discrete points)" )
    ("output,o", po::value<std::string>(), "Output OBJ filename" )
    ("thresholdMin,m",  po::value<int>()->default_value(0), "threshold min to define binary shape" )
    ("thresholdMax,M",  po::value<int>()->default_value(255), "threshold max to define binary shape" );

  bool parseOK=true;
  po::variables_map vm;
  try
    {
      po::store(po::parse_command_line(argc, argv, general_opt), vm);
    } catch(const std::exception& ex)
    {
      parseOK=false;
      trace.info()<< "Error checking program options: "<< ex.what()<< endl;
    }
  po::notify(vm);
  if( !parseOK || vm.count("help")||argc<=1)
    {
      std::cout << "Usage: " << argv[0] << " [input-file]\n"
                << "Convert a  volume file into OBJ format\n"
                << general_opt << "\n";
      return 0;
    }

  if(! vm.count("input"))
    {
      trace.error() << " The input filename was defined" << endl;
      return 0;
    }
  if(! vm.count("output"))
    {
      trace.error() << " The output filename was defined" << endl;
      return 0;
    }

  string inputFilename = vm["input"].as<std::string>();
  string outputFilename = vm["output"].as<std::string>();
  int thresholdMin = vm["thresholdMin"].as<int>();
  int thresholdMax = vm["thresholdMax"].as<int>();

  Board3D<> board;

  typedef ImageSelector<Domain, unsigned char>::Type Image;
  string extension = inputFilename.substr(inputFilename.find_last_of(".") + 1);
  if(extension!="vol" && extension != "p3d" && extension != "pgm3D" &&
     extension != "pgm3d" && extension != "sdp" && extension != "pgm")
    {
      trace.info() << "File extension not recognized: "<< extension << std::endl;
      return 0;
    }

  if(extension=="vol" || extension=="pgm3d" || extension=="pgm3D")
    {
      Image image = GenericReader<Image>::import (inputFilename );
      trace.info() << "Image loaded: "<<image<< std::endl;
      Domain domain = image.domain();
      for(Domain::ConstIterator it = domain.begin(), itend=domain.end(); it!=itend; ++it){
        unsigned char  val= image( (*it) );
        if(val<=thresholdMax && val >=thresholdMin){
          board << *it;
        }
      }
    }
  else
    if(extension=="sdp")
      {
        vector<Z3i::Point> vectVoxels = PointListReader<Z3i::Point>::getPointsFromFile(inputFilename);
        for(unsigned int i=0;i< vectVoxels.size(); i++){
          board << vectVoxels.at(i);
        }
      }


  board.saveOBJ(outputFilename);
  return 0;
}