volToOFF.cpp File Reference

#include <iostream>
#include "DGtal/base/Common.h"
#include "DGtal/io/readers/VolReader.h"
#include "DGtal/helpers/StdDefs.h"
#include "DGtal/topology/helpers/Surfaces.h"
#include "DGtal/topology/DigitalSurface.h"
#include "DGtal/topology/SetOfSurfels.h"
#include "DGtal/images/ImageSelector.h"
#include "DGtal/images/imagesSetsUtils/SetFromImage.h"

Go to the source code of this file.

Functions
void	usage (int, char **argv)
int	main (int argc, char **argv)

Detailed Description

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 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, see http://www.gnu.org/licenses/.

Author

Jacques-Olivier Lachaud (jacqu.nosp@m.es-o.nosp@m.livie.nosp@m.r.la.nosp@m.chaud.nosp@m.@uni.nosp@m.v-sav.nosp@m.oie..nosp@m.fr ) Laboratory of Mathematics (CNRS, UMR 5127), University of Savoie, France

Date

2012/02/06

A simple marching cube algorithm for vol files based on digital surfaces.

This file is part of the DGtal library.

Definition in file volToOFF.cpp.

Function Documentation

main()

int main	(	int	argc,
		char **	argv
	)

[volToOff-readVol]

[volToOff-readVol]

[volToOff-KSpace]

[volToOff-KSpace]

[volToOff-SurfelAdjacency]

[volToOff-SurfelAdjacency]

[volToOff-ExtractingSurface]

[volToOff-ExtractingSurface]

[volToOff-makingOFF]

[volToOff-makingOFF]

Definition at line 83 of file volToOFF.cpp.

{
  if ( argc < 5 )
    {
      usage( argc, argv );
      return 1;
    }
  std::string inputFilename = argv[ 1 ];
  unsigned int minThreshold = atoi( argv[ 2 ] );
  unsigned int maxThreshold = atoi( argv[ 3 ] );
  bool intAdjacency = atoi( argv[ 4 ] ) == 0;
 
  trace.beginBlock( "Reading vol file into an image." );
  typedef ImageSelector < Domain, int>::Type Image;
  Image image = VolReader<Image>::importVol(inputFilename);
  DigitalSet set3d (image.domain());
  SetFromImage<DigitalSet>::append<Image>(set3d, image,
                                          minThreshold, maxThreshold);
  trace.endBlock();
 
  // Construct the Khalimsky space from the image domain
  KSpace K;
  bool space_ok = K.init( image.domain().lowerBound(),
                          image.domain().upperBound(), true );
  if (!space_ok)
    {
      trace.error() << "Error in the Khamisky space construction."<<std::endl;
      return 2;
    }
 
  typedef SurfelAdjacency<KSpace::dimension> MySurfelAdjacency;
  MySurfelAdjacency surfAdj( intAdjacency ); // interior in all directions.
 
  trace.beginBlock( "Extracting boundary by scanning the space. " );
  typedef KSpace::SurfelSet SurfelSet;
  typedef SetOfSurfels< KSpace, SurfelSet > MySetOfSurfels;
  typedef DigitalSurface< MySetOfSurfels > MyDigitalSurface;
 
  MySetOfSurfels theSetOfSurfels( K, surfAdj );
  Surfaces<KSpace>::sMakeBoundary( theSetOfSurfels.surfelSet(),
                                   K, set3d,
                                   image.domain().lowerBound(),
                                   image.domain().upperBound() );
  MyDigitalSurface digSurf( theSetOfSurfels );
  trace.info() << "Digital surface has " << digSurf.size() << " surfels."
               << std::endl;
  trace.endBlock();
 
  trace.beginBlock( "Making OFF surface <marching-cube.off>. " );
  ofstream out( "marching-cube.off" );
  if ( out.good() )
    digSurf.exportSurfaceAs3DOFF( out );
  out.close();
  trace.endBlock();
 
  return 0;
}

References DGtal::Trace::beginBlock(), DGtal::DigitalSetByAssociativeContainer< TDomain, TContainer >::domain(), DGtal::Trace::endBlock(), DGtal::Trace::error(), DGtal::DigitalSurface< TDigitalSurfaceContainer >::exportSurfaceAs3DOFF(), DGtal::VolReader< TImageContainer, TFunctor >::importVol(), DGtal::Trace::info(), DGtal::KhalimskySpaceND< dim, TInteger >::init(), K, DGtal::DigitalSurface< TDigitalSurfaceContainer >::size(), DGtal::Surfaces< TKSpace >::sMakeBoundary(), and DGtal::trace.

usage()

void usage	(	int	,
		char **	argv
	)

Definition at line 75 of file volToOFF.cpp.

{
  std::cerr << "Usage: " << argv[ 0 ] << " <fileName.vol> <minT> <maxT> <int=0|ext=1>" << std::endl;
  std::cerr << "\t - displays the boundary of the shape stored in vol file <fileName.vol> as an OFF geomview surface file. It is a kind of marching-cube surface, defined by duality with respect to the digital surface." << std::endl;
  std::cerr << "\t - voxel v belongs to the shape iff its value I(v) follows minT <= I(v) <= maxT." << std::endl;
  std::cerr << "\t - 0: interior adjacency, 1: exterior adjacency." << std::endl;
}