[Insight-users] OT: Generic Programming - Typedefs inside template functions

[Wagner Sales]

Dears,

May be that's a fool question, but I'm not so familiar with templates and my searches are returned not useful.

Well, I'm trying to give some type at a template function and use them to define the image type. My method are:

template <typename T>
void MyFilter::processImage(T)
{
    if(!m_ImageData) return;
    // defines the type
    typedef T PixelType;
    typedef itk::Image<T, 3> ImageData;
    ImageData::Pointer m_Image = ImageData::New();
    typedef itk::ImageToVTKImageFilter< ImageData > ToVTKConverter;
        typedef itk::VTKImageToImageFilter< ImageData > ToITKConverter;
    typedef itk::BinaryThresholdImageFilter<ImageData, ImageData> FilterType;
    ToVTKConverter::Pointer m_toVTKConverter = ToVTKConverter::New();
        ToITKConverter::Pointer m_toITKConverter = ToITKConverter::New();
    FilterType::Pointer m_Filter = FilterType::New();
.
.
and so on...
}

My compiler just returns:
MyFilter.cpp:78: error: expected `;' before ‘a’
MyFilter.cpp:82: error: expected `;' before ‘m_toVTKConverter’
MyFilter.cpp:83: error: expected `;' before ‘m_toITKConverter’
MyFilter.cpp:84: error: expected `;' before ‘m_Filter’

This method are inside a NOT template class, and I'm trying to solve the various pixel types that's are encountered in DICOM images without conversion, just instantiate the filter and runs them.

Sorry by this newbie question,
but I'll appreciate any help from yours.

Thanks in advance,

Wagner Sales


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