Пример #1
0
int main( int argc, char** argv )
{
  
  std::string inputFilename = examplesPath + "samples/Al.100.vol";
  
  //------------
  typedef Z3i::Point Point;

  
  QApplication application(argc,argv);
  Viewer3D<> viewer;
  viewer.setWindowTitle("simpleViewer");
  viewer.show();


 
  //Default image selector = STLVector
  typedef ImageSelector<Z3i::Domain, unsigned char>::Type Image;
  Image image = VolReader<Image>::importVol( inputFilename );
  Z3i::Domain domain = image.domain();


  Image imageSeeds ( domain);
  for ( Image::Iterator it = imageSeeds.begin(), itend = imageSeeds.end();it != itend; ++it)
    (*it)=1;
  Z3i::Point p0(10,10,10);
  //imageSeeds.setValue(p0, 0 );
  randomSeeds(imageSeeds, 70, 0);


  //Distance transformation computation
  typedef SimpleThresholdForegroundPredicate<Image> Predicate;
  Predicate aPredicate(imageSeeds,0);

  typedef  DistanceTransformation<Z3i::Space,Predicate, Z3i::L2Metric> DTL2;
  DTL2 dtL2(&domain, &aPredicate, &Z3i::l2Metric);

  unsigned int min = 0;
  unsigned int max = 0;
  for(DTL2::ConstRange::ConstIterator it = dtL2.constRange().begin(), 
        itend=dtL2.constRange().end();
      it!=itend;
      ++it)
    {
      if(  (*it) < min )   
        min=(*it);
      if( (*it) > max ) 
        max=(*it);
    }
     
     
  GradientColorMap<long> gradient( 0,30);
  gradient.addColor(Color::Red);
  gradient.addColor(Color::Yellow);
  gradient.addColor(Color::Green);
  gradient.addColor(Color::Cyan);
  gradient.addColor(Color::Blue);
  gradient.addColor(Color::Magenta);
  gradient.addColor(Color::Red);  
 

  viewer << SetMode3D( (*(domain.begin())).className(), "Paving" );
  
  for(Z3i::Domain::ConstIterator it = domain.begin(), itend=domain.end();
      it!=itend;
      ++it){
   
    double valDist= dtL2( (*it) );     
    Color c= gradient(valDist);
   
    if(dtL2(*it)<=30 && image(*it)>0){
      viewer << CustomColors3D(Color((float)(c.red()), 
                                     (float)(c.green()),
                                     (float)(c.blue(),205)), 
                               Color((float)(c.red()), 
                                     (float)(c.green()),
                                     (float)(c.blue()),205));
      viewer << *it ;
    }     
  }
  viewer<< Viewer3D<>::updateDisplay;
 
  return application.exec();
}
Пример #2
0
int main( int narg, char **argv )
{
	trace.beginBlock("Identifying the domain.");
	Z3i::Domain domain = scene_dimensions( argv[1] ) ;
	if ( domain.lowerBound() == domain.upperBound() ) {
		trace.error()<<"Invalid domain ("<<__FILE__<<")"<<std::endl;
		return -1 ;
	}
	trace.endBlock() ;
	trace.beginBlock("Reading slices.");
	Z3i::DigitalSet set3d( domain ) ;
	
	SetPredicate<Z3i::DigitalSet> set3dPredicate( set3d ) ;
	for ( uint depth = 0 ; depth < domain.upperBound().at(2) ; depth++ )
		process_slice( argv[1], depth, set3d ) ;
	trace.endBlock() ;

	if ( 0) {
		try {
			Gray3DImage aImage( domain );
			for ( Z3i::Domain::ConstIterator pt = domain.begin() ; pt != domain.end() ; pt++ )
				aImage.setValue( (*pt), 255 ) ;
			boost::filesystem::path pathvolname = argv[1] ;
			pathvolname /= "obj.vol" ;
			if ( ! DGtal::VolWriter< Gray3DImage, GrayColorMap >::exportVol ( pathvolname.string(), aImage, 0, 255 ) )
			{
				trace.error() <<"Can not export data (generated 3D object)"<<std::endl;
				return -4 ;
			} else {
				trace.info()<<"export data to "<<pathvolname.string()<<std::endl;
			}
			pathvolname = argv[1] ;
			pathvolname /= "obj.pgm3d" ;
			if ( ! PNMWriter<Gray3DImage, GrayColorMap >::exportPGM3D( pathvolname.string(), aImage, 0, 255 ) )
			{
				trace.error() <<"Can not export data (generated 3D object)"<<std::endl;
				return -4 ;
			} else {
				trace.info()<<"export data to "<<pathvolname.string()<<std::endl;
			}
			
		} catch ( std::exception &e ) {
			trace.error() <<"Can not export data (generated 3D object) "<<e.what()<<std::endl;
			return -8 ;
		}
	}

	trace.beginBlock( "Decompose the object into connected components." );
	{
		DGtal::Z3i::Object6_18 scene( DGtal::Z3i::dt6_18, set3d ) ;
		std::vector< Z3i::Object6_18 > v_obj ;
		back_insert_iterator< std::vector< Z3i::Object6_18 > > it( v_obj ) ;
		scene.writeComponents( it ) ;
		boost::filesystem::path scenefilename = argv[1] ;
		scenefilename /= "scene.pgm3d" ;
		IOPgm3d::write( v_obj, scenefilename.string().c_str() ) ;
	}
	trace.endBlock( );

	return -64;
	
	trace.beginBlock( "Construct the Khalimsky space from the image domain." );
	Z3i::KSpace ks;
	bool space_ok = ks.init( domain.lowerBound(), domain.upperBound(), true );
	if (!space_ok)
	{
		trace.error() << "Error in the Khamisky space construction."<<std::endl;
		return -2;
	}
	trace.endBlock();

	typedef SurfelAdjacency<Z3i::KSpace::dimension> MySurfelAdjacency;
	MySurfelAdjacency surfAdj( true ); // interior in all directions.

	trace.beginBlock( "Extracting boundary by tracking from an initial bel." );
	Z3i::KSpace::SCellSet boundary;
	Z3i::SCell bel = Surfaces<Z3i::KSpace>::findABel( ks, set3dPredicate, 100000 );
	Surfaces<Z3i::KSpace>::trackBoundary( boundary, ks, surfAdj, set3dPredicate, bel );
	trace.endBlock();

	trace.beginBlock( "Displaying surface in Viewer3D." );
	QApplication application(narg,argv);
	Viewer3D viewer;
	viewer.show();
	viewer 	<< SetMode3D( boundary.begin()->className(), "") ; //CustomColors3D(Color(250, 0, 0 ), Color( 128, 128, 128 ) );
	unsigned long nbSurfels = 0;
	for ( Z3i::KSpace::SCellSet::const_iterator it = boundary.begin(), it_end = boundary.end(); it != it_end; ++it, ++nbSurfels )
	
			viewer << ks.uCell( Z3i::Point( (*it).myCoordinates.at(0), (*it).myCoordinates.at(1), (*it).myCoordinates.at(2) ) ) ;
	
	/**
	for ( Z3i::KSpace::SCellSet::const_iterator it = boundary.begin(), it_end = boundary.end(); it != it_end; ++it, ++nbSurfels )
		viewer << (*it) ;
	*/
	trace.info() << *boundary.begin()<<std::endl;
	viewer << Viewer3D::updateDisplay;
	trace.info() << "nb surfels = " << nbSurfels << std::endl;
	trace.endBlock();
	return application.exec();
}