[Vv] small vv bug

[Joel Schaerer]

Hi Simon,

this does indeed solve the problem. Thanks!
The error message could be a bit improved, though :) (see attached
screenshot)

joel

Simon Rit wrote:
> Hi Joel,
> I think I found the problem. Exceptions are actually not disabled by
> qt. The problem was that vtkImageImport was disabling them. I found a
> fix by updating the itk pipeline prior to conversion :
> http://cvs.creatis.insa-lyon.fr/viewvc/clitk3/common/vvImage.txx?r1=1.6&r2=1.7
> I hope this solves your bug...
> Simon
>
> On Tue, Apr 5, 2011 at 5:27 PM, Simon Rit
> <simon.rit at creatis.insa-lyon.fr> wrote:
>   
>> Hi vv user,
>> The code is in vvImageReader.txx around line 150:
>>
>>    } else {
>>      typedef itk::Image< InputPixelType, VImageDimension >
>> InputImageType;
>>      typedef itk::ImageFileReader<InputImageType> ReaderType;
>>      typename ReaderType::Pointer reader = ReaderType::New();
>>      reader->SetFileName(mInputFilenames[0]);
>>      reader->ReleaseDataFlagOn();
>>
>>      try {
>>        if (mType == IMAGEWITHTIME)
>>          mImage=vvImageFromITK<VImageDimension,InputPixelType>(reader->GetOutput(),true);
>>        else
>>          mImage=vvImageFromITK<VImageDimension,InputPixelType>(reader->GetOutput());
>>      } catch ( itk::ExceptionObject & err ) {
>>        std::cerr << "Error while reading " <<
>> mInputFilenames[0].c_str()
>>                  << " " << err << std::endl;
>>        std::stringstream error;
>>        error << err;
>>        mLastError = error.str();
>>        return;
>>      }
>>
>> At that point, it has already read the image information successfully.
>> Then, it reads the image data and is supposed to handle an exception
>> which I think doesn't work with qt... I don't have a quick fix for
>> this. Can you raise a bug in our brand new bug tracker?
>> http://kingkong.grid.creatis.insa-lyon.fr:9002/projects/vv?jump=users
>> You can assign it to anyone you dislike. We'll discuss it during one
>> of our regular vv meetings (we had one so far :-)
>> Simon
>>
>> On Tue, Apr 5, 2011 at 5:11 PM, Joel Schaerer <joel.schaerer at gmail.com> wrote:
>>     
>>> Hi all,
>>>
>>> I lost quite some time today because vv does not warn the user when it
>>> doesn't find the raw file attached to an mhd. Instead, it displays garbage.
>>>
>>> The function that needs to be fixed is probably vvImageReader::Update.
>>> Unfortunately, I don't know ITK well enough to know immediately what
>>> needs to be done. Any ideas?
>>>
>>> joel
>>>
>>> //------------------------------------------------------------------------------
>>> void vvImageReader::Update(LoadedImageType type)
>>> {
>>>  itk::ImageIOBase::Pointer reader =
>>> itk::ImageIOFactory::CreateImageIO(mInputFilenames[0].c_str(),
>>> itk::ImageIOFactory::ReadMode);
>>>  if (!reader) {
>>>    mLastError="Unable to read file.";
>>>  } else {
>>>    reader->SetFileName(mInputFilenames[0]);
>>>    reader->ReadImageInformation();
>>>    if (mInputFilenames.size() > 1)
>>>
>>> Update(reader->GetNumberOfDimensions()+1,reader->GetComponentTypeAsString(reader->GetComponentType()),type);
>>>    else
>>>
>>> Update(reader->GetNumberOfDimensions(),reader->GetComponentTypeAsString(reader->GetComponentType()),type);
>>>  }
>>> }
>>> //------------------------------------------------------------------------------
>>>
>>> _______________________________________________
>>> vv mailing list
>>> vv at creatis.insa-lyon.fr
>>> http://www.creatis.insa-lyon.fr/mailman/listinfo/vv
>>>
>>>       

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