[Insight-developers] Re: [Insight-users] ITK iterators debugging problem in Visual Studio 8(VS 2005)

[zjzhang at ee.cuhk.edu.hk]

Quoting Luis Ibanez <luis.ibanez at kitware.com>:
hi Luis: 

   I run my program with both vs.net and vs2005. when I use 
fixedReader->GetOutput()->Print(std::cout); 
Both have the same text in the console: 

Image (019AC790)
  RTTI typeinfo:   class itk::Image<short,3>
  Reference Count: 1
  Modified Time: 157
  Debug: Off
  Observers:
    none
  Source: (019AC630)
  Source output index: 0
  Release Data: Off
  Data Released: False
  Global Release Data: Off
  PipelineMTime: 0
  UpdateMTime: 0
  LargestPossibleRegion:
    Dimension: 3
    Index: [0, 0, 0]
    Size: [0, 0, 0]
  BufferedRegion:
    Dimension: 3
    Index: [0, 0, 0]
    Size: [0, 0, 0]
  RequestedRegion:
    Dimension: 3
    Index: [0, 0, 0]
    Size: [0, 0, 0]
  Spacing: [1, 1, 1]
  Origin: [0, 0, 0]
  Direction:
1 0 0
0 1 0
0 0 1

  PixelContainer:
    ImportImageContainer (019B0F40)
      RTTI typeinfo:   class itk::ImportImageContainer<unsigned long,short>
      Reference Count: 1
      Modified Time: 154
      Debug: Off
      Observers:
        none
      Pointer: 019B0F70
      Container manages memory: true
      Size: 0
      Capacity: 0

However, with the vc.net version I can pass fileReader->Update() function, and
everything is ok, but with the vs2005  there is the error I said before. I use
the GetLargestPossibleRegion() for my filter region.  


even if I do nothing but just read a file and then write it out with this code:

typedef ImageFileReader< ImageType > ImageReaderType; 
typedef ImageFileWriter< ImageType > ImageWriterType; 
ImageReaderType::Pointer reader= ImageReaderType::New(); 
ImageWriterType::Pointer writer= ImageWriterType::New(); 
reader->SetFileName(inputname); 
writer->SetInput(reader->GetOutput()); 
writer->SetFileName(outputname); 
writer->Update(); 

for the vc.net version, it's ok, but with the vs2005 version it again stops 
at the same line. or if I want to cast a image from short to unsigned char, 
I dont think this filter need to be given a region. after the image is update
the filter should have the image region automatically. This is ok in vc.net
but not ok in vs2005.  


> 
> Hi Alex
> 
> You missed to show the section of code where you are using
> the image iterators.
> 
> Chances are that you are now getting an image region
> from the input image produced by the reader. If you
> run the reader again and read a different image, then
> that region will not match your current image.
> 
> You must make sure that you call UpdateLargestPossibleRegion()
> in the last filter of your pipeline, or at least on the filter
> from which you are taking the region that defines your iterator.
> 
> Also, make sure that you grab the region again, after you call
> UpdateLargestPossible region.
> 
> Printing out the image data with
> 
>        filter->GetOutput()->Print( std::cout );
> 
> and printing the region of the iterator, will help you to
> understand when these two are not matching.
> 
> 
> If you still find any problems, please post to the list the
> section of code where you are using the ImageIterators.
> 
> 
> 
>    Thanks
> 
> 
> 
>       Luis
> 
> 
> 
> ----------------------------
> zjzhang at ee.cuhk.edu.hk wrote:
> > Dear All:
> > 
> >       I have a problem with my own program. I use vs 2005 , itk 3.4
> > version under windows xp. it happens with the debug mode of the
> > program with the following code:
> >                ImageFileReader::Pointer fixedReader =
> ImageFileReader::New();
> >                fixedReader->SetFileName( filename );
> >                fixedReader->Update();
> > 
> >  every time when I call update() of the imagefilereader, there will be
> > an error:
> > Unhandled exception at 0x005ace01 in MyProgram.exe: 0xC0000005: Access
> > violation reading location 0xcccccccc.
> > 
> > and the debug breaks at file "list" with lines:
> > #if _HAS_ITERATOR_DEBUGGING || _SECURE_SCL
> >        iterator begin()
> >                {       // return iterator for beginning of mutable
> sequence
> >                return (iterator(_Nextnode(_Myhead), this));
> >                }
> > 
> > I have seen there is a similar problem in:
> > http://www.itk.org/pipermail/insight-users/2006-December/020472.html
> > but It seem the discussion didn't reach a clear answer.
> > if I add # cmakedefine  _HAS_ITERATOR_DEBUGGING=0
> >          # cmakedefine  _SECURE_SCL=0
> > into the itkConfigure.h.in, line 49, it seems after cmake, it is still
> > not defined in the itkconfigure.h file.
> > But if I add some words in cmakelist.txt, I wonder if I need add
> > _HAS_ITERATOR_DEBUGGING=0 every time in my program build on itk.
> > 
> > I want to know how to solve this bug.  Thank you for your help.
> > 
> > regards,
> > Alex
> > _______________________________________________
> > Insight-users mailing list
> > Insight-users at itk.org
> > http://www.itk.org/mailman/listinfo/insight-users
> > 
>