[Insight-users] question about writing a template with itk

[Miller, James V (GE, Research)]

You probably need a typename keyword

typedef itk::VTKImageExport<typename InputImageType>
itkVTKImageExportType; 

-----Original Message-----
From: insight-users-bounces+millerjv=crd.ge.com at itk.org
[mailto:insight-users-bounces+millerjv=crd.ge.com at itk.org] On Behalf Of
kdsfinger at gmail.com
Sent: Thursday, August 17, 2006 6:04 PM
To: Insight-users at itk.org
Subject: [Insight-users] question about writing a template with itk

hi, all
I am trying to write a c++ template class to read and display different
pixel format of images (unsigned char, unsigned short, etc).
Here is a few lines of codes of my header file.

template<class T>
class myBase{
public:
  typedef itk::Image<T, 3> InputImageType; //ok

  /** Type of image exported from ITK to VTK */
  typedef itk::VTKImageExport<InputImageType> itkVTKImageExportType;
//error
  //...
}

When I tried to compile, I got the following error message:
 type 'itk::VTKImageExport<itk::Image<T, 3u> >' is not derived from type
'myBase<T>'

What does it mean? How may I correct my program? Thanks for your help.

zl2k
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