exampleGridCurve3d-2.cpp File Reference

#include <iostream>
#include "DGtal/base/Common.h"
#include "DGtal/helpers/StdDefs.h"
#include "DGtal/topology/KhalimskySpaceND.h"
#include "DGtal/topology/SurfelAdjacency.h"
#include "DGtal/topology/DigitalSurface.h"
#include "DGtal/topology/SetOfSurfels.h"
#include "DGtal/topology/DigitalSurface2DSlice.h"
#include "DGtal/topology/helpers/Surfaces.h"
#include "DGtal/io/viewers/Viewer3D.h"
#include "DGtal/io/readers/VolReader.h"
#include "DGtal/io/DrawWithDisplay3DModifier.h"
#include "DGtal/images/ImageSelector.h"
#include "DGtal/images/ImageHelper.h"
#include "DGtal/kernel/sets/DigitalSetInserter.h"
#include "DGtal/io/Color.h"
#include "DGtal/geometry/curves/GridCurve.h"
#include "ConfigExamples.h"

Include dependency graph for exampleGridCurve3d-2.cpp:

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Functions
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

Tristan Roussillon (trist.nosp@m.an.r.nosp@m.oussi.nosp@m.llon.nosp@m.@liri.nosp@m.s.cn.nosp@m.rs.fr ) Laboratoire d'InfoRmatique en Image et Systèmes d'information - LIRIS (CNRS, UMR 5205), CNRS, France

Date

2012/06/03

An example file for GridCurve, defined as a sequence of 2-scells, in a 3d Khalimsky space.

This file is part of the DGtal library.

Definition in file exampleGridCurve3d-2.cpp.

Function Documentation

main()

int main	(	int	argc,
		char **	argv
	)

[exampleGridCurve3d-Construction]

[exampleGridCurve3d-Construction]

Definition at line 85 of file exampleGridCurve3d-2.cpp.

{
  trace.info() << "exampleGridCurve3d-2: the type of data to be displayed "
               << "may be given as argument as follows: "
               << argv[0] << " inner" << endl; 
  trace.info() << "Available types are: gridcurve (default), inner, outer, incident" << endl;
 
  string type = (argc > 1) ? string(argv[1]) : "gridcurve";
  trace.info() << "Chosen type: " << type << endl; 
 
  //vol reading and digital set construction
  trace.beginBlock( "Reading vol file into an image." );
  typedef ImageSelector < Domain, int>::Type Image;
  std::string inputFilename = examplesPath + "samples/cat10.vol";
  Image image = VolReader<Image>::importVol(inputFilename);
  DigitalSet set3d (image.domain());
  setFromImage( image, DigitalSetInserter<DigitalSet>(set3d), 1);
  trace.info() << set3d.size() << " voxels." << std::endl;
  trace.endBlock();
 
  //Khalimsky space construction
  trace.beginBlock( "Construct the Khalimsky space from the image domain." );
  KSpace ks;
  trace.endBlock();
 
  //digital surface construction
  typedef SurfelAdjacency<KSpace::dimension> MySurfelAdjacency;
  MySurfelAdjacency surfAdj( true ); // interior in all directions.
 
  trace.beginBlock( "Extracting boundary by scanning the space. " );
  typedef KSpace::Surfel Surfel;
  typedef KSpace::SurfelSet SurfelSet;
  typedef SetOfSurfels< KSpace, SurfelSet > MySetOfSurfels;
  typedef DigitalSurface< MySetOfSurfels > MyDigitalSurface;
  MySetOfSurfels theSetOfSurfels( ks, surfAdj );
  Surfaces<KSpace>::sMakeBoundary( theSetOfSurfels.surfelSet(),
                                   ks, set3d,
                                   image.domain().lowerBound(),
                                   image.domain().upperBound() );
  MyDigitalSurface digSurf( theSetOfSurfels );
  trace.info() << digSurf.size() << " surfels." << std::endl;
  trace.endBlock();
 
  //slice retrieving
  trace.beginBlock( "Extracting slice and constructing a grid curve. " );
  typedef MyDigitalSurface::DigitalSurfaceTracker MyTracker;
  typedef DigitalSurface2DSlice< MyTracker > My2DSlice;
 
  //Extract an initial boundary cell
  Surfel surf = *digSurf.begin();
  MyTracker* tracker = digSurf.container().newTracker( surf );
 
  // Extract the bondary contour associated to the initial surfel in
  // its first direction
  My2DSlice slice( tracker, *(ks.sDirs( surf )) );
  delete tracker;
 
  GridCurve<KSpace> gc(ks);
  gc.initFromSCellsRange( slice.begin(), slice.end() );
 
  trace.endBlock();
 
 
  // for 3D display with Viewer3D
  QApplication application(argc,argv);
  trace.beginBlock( "Display all with QGLViewer." );
  Viewer3D<Space, KSpace> viewer(ks);
  viewer.show();
  // Displaying all the surfels in transparent mode
  viewer << SetMode3D( surf.className(), "Transparent");
  for( MyDigitalSurface::ConstIterator it = theSetOfSurfels.begin(),
         it_end = theSetOfSurfels.end(); it != it_end; ++it )
    viewer<< *it;
 
 
  // Displaying slice
  viewer << Viewer3D<Space, KSpace>::shiftSurfelVisu;
  viewer << SetMode3D( surf.className(), "");
  viewer.setFillColor( Color( 50, 50, 255 ) );
 
  if (type == "gridcurve")
    {
      viewer  << gc;
    }
  else if (type == "inner")
    {
      viewer << gc.getInnerPointsRange();
    }
  else if (type == "outer")
    {
      viewer << gc.getOuterPointsRange();
    }
  else if (type == "incident")
    {
      viewer << gc.getIncidentPointsRange();
    }
  else
    {
      trace.info() << "Display type not known." << std::endl;
    }
 
  viewer << Viewer3D<Space, KSpace>::updateDisplay;
  trace.endBlock();
 
  return application.exec();
}

References DGtal::DigitalSurface< TDigitalSurfaceContainer >::begin(), DGtal::Trace::beginBlock(), DGtal::SignedKhalimskyCell< dim, TInteger >::className(), DGtal::DigitalSurface< TDigitalSurfaceContainer >::container(), DGtal::DigitalSetByAssociativeContainer< TDomain, TContainer >::domain(), DGtal::Trace::endBlock(), DGtal::GridCurve< TKSpace >::getIncidentPointsRange(), DGtal::GridCurve< TKSpace >::getInnerPointsRange(), DGtal::GridCurve< TKSpace >::getOuterPointsRange(), DGtal::Trace::info(), DGtal::GridCurve< TKSpace >::initFromSCellsRange(), DGtal::KhalimskySpaceND< dim, TInteger >::sDirs(), DGtal::Display3D< Space, KSpace >::setFillColor(), DGtal::setFromImage(), DGtal::Viewer3D< TSpace, TKSpace >::show(), DGtal::DigitalSetByAssociativeContainer< TDomain, TContainer >::size(), DGtal::DigitalSurface< TDigitalSurfaceContainer >::size(), and DGtal::trace.