testVolReader.cpp

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#include <iostream>
#include "DGtal/base/Common.h"
#include "DGtal/kernel/SpaceND.h"
#include "DGtal/kernel/domains/HyperRectDomain.h"
#include "DGtal/images/ImageSelector.h"
#include "DGtal/io/readers/VolReader.h"
#include "DGtal/io/colormaps/HueShadeColorMap.h"
#include "DGtal/io/colormaps/GrayscaleColorMap.h"
#include "DGtal/io/colormaps/GradientColorMap.h"
#include "DGtal/io/colormaps/ColorBrightnessColorMap.h"
#include "DGtal/io/writers/VolWriter.h"
 
#include "ConfigTest.h"
 
 
using namespace std;
using namespace DGtal;
 
// Functions for testing class VolReader.
 
bool testVolReader()
{
  unsigned int nbok = 0;
  unsigned int nb = 0;
  
  trace.beginBlock ( "Testing VolReader ..." );
 
  typedef SpaceND<3> Space4Type;
  typedef HyperRectDomain<Space4Type> TDomain;
  
  //Default image selector = STLVector
  typedef ImageSelector<TDomain, unsigned char>::Type Image;
  
  
  std::string filename = testPath + "samples/cat10.vol";
  Image image = VolReader<Image>::importVol( filename );
  
  trace.info() << image <<endl;
  
  unsigned int nbval=0;
  for(Image::ConstIterator it=image.begin(), itend=image.end();
      it != itend;   ++it)
    if ( (*it) != 0)
      nbval++;
  
  trace.info() << "Number of points with (val!=0)  = "<<nbval<<endl;
 
  nbok += ( nbval == 8043)  ? 1 : 0; 
  nb++;
 
  VolWriter<Image>::exportVol("catenoid-export.vol",image);
 
  nbok += ( true )  ? 1 : 0; 
  nb++;
 
  trace.info() << "(" << nbok << "/" << nb << ") "
         << "true == true" << std::endl;
  trace.endBlock();
  
  return nbok == nb;
}
 
 
bool testIOException()
{
  unsigned int nbok = 0;
  unsigned int nb = 0;
  
  trace.beginBlock ( "Testing VolReader ..." );
 
  typedef SpaceND<3> Space4Type;
  typedef HyperRectDomain<Space4Type> TDomain;
  
  //Default image selector = STLVector
  typedef ImageSelector<TDomain, unsigned char>::Type Image;
  
  
  std::string filename = testPath + "samples/null.vol";
  try
    {
      Image image = VolReader<Image>::importVol( filename );
    }
  catch(exception& e)
    {
      trace.info() << "Exception catched. Message : "<< e.what()<<endl;
    }
  
  
 
  nbok += ( true )  ? 1 : 0; 
  nb++;
 
  trace.info() << "(" << nbok << "/" << nb << ") "
         << "true == true" << std::endl;
  trace.endBlock();
  
  return nbok == nb;
}
 
bool testConsistence()
{
  trace.beginBlock ( "Testing VolWriter ..." );
 
  typedef SpaceND<3> Space4Type;
  typedef HyperRectDomain<Space4Type> TDomain;
  typedef TDomain::Point Point;
  
  //Default image selector = STLVector
  typedef ImageSelector<TDomain, unsigned char>::Type Image;
  TDomain domain(Point(-17,-14,-13), Point(5,7,11));
  Image image(domain);
  trace.info() << image.domain() <<endl;
 
  VolWriter<Image>::exportVol("testConsistence.vol",image);
  
  trace.endBlock();
 
  trace.beginBlock ( "Testing VolReader ..." );
 
  Image image2 = VolReader<Image>::importVol( "testConsistence.vol" );
  
  trace.info() << image2.domain() <<endl;
  trace.endBlock();
 
  if( image.domain().lowerBound() != image2.domain().lowerBound() 
    || image.domain().upperBound() != image2.domain().upperBound() )
  {
    return false;
  }
  return true;
}
 
// Standard services - public :
 
int main( int argc, char** argv )
{
  int aaaaa = 21/2;
  std::cout << aaaaa << std::endl;
  
  trace.beginBlock ( "Testing class VolReader" );
  trace.info() << "Args:";
  for ( int i = 0; i < argc; ++i )
    trace.info() << " " << argv[ i ];
  trace.info() << endl;
 
  bool res = testVolReader() && testIOException() && testConsistence(); // && ... other tests
  trace.emphase() << ( res ? "Passed." : "Error." ) << endl;
  trace.endBlock();
  return res ? 0 : 1;
 
}
//                                                                           //