[Insight-users] Problem with the FastMarchingImageFilter example

[Frederic Perez]

Hi Erik,

you should use the try/catch C++ exception handling mechanism.
(You will notice for example in the ITK software guide, that 
it is used very extensively..)
It will help you identify the problem:

try
{
  writer1->Update();
}
catch( itk::ExceptionObject & ecp )
{
  std::cerr << "Exception caught" << std::endl;
  std::cerr << ecp << std::endl;
}
catch(...)
{
  std::cerr << "Unknown exception caught !" << std::endl;
}

Regards,

Frederic Perez

 --- Erik Vidholm <erik at cb.uu.se> escribió: 
> I get a runtime error when I try to run the
> FastMarchingImageFilter.cxx example. 
> I use the image file and the parameters that are suggested in the
> software guide.
> 
> Below is a small part of the code, the error occurs when
> writer1->Update() is invoked, i.e. "C" is never printed.
> 
> Anyone who have experienced the same problem?
> 
> / Erik
> 
>   std::cerr << "A" << std::endl;
>   caster1->SetInput( smoothing->GetOutput() );
>   writer1->SetInput( caster1->GetOutput() );
>   writer1->SetFileName("FastMarchingFilterOutput1.png");
>   caster1->SetOutputMinimum(   0 );
>   caster1->SetOutputMaximum( 255 );
>   std::cerr << "B" << std::endl;  
>   writer1->Update();
>   std::cerr << "C" << std::endl;  >
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