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 template<unsigned int VImageDimension>
 void 
 ImageBase<VImageDimension>
 ::SetRequestedRegion(DataObject *data)
 {
   ImageBase *imgData;
   std::cout << "ImageBase::SetRequestedRegion DataObject = " << data <<
    std::endl;
   imgData = dynamic_cast<ImageBase*>(data);  

   if (imgData)
     {
     m_RequestedRegion = imgData->GetRequestedRegion();
     }
   else
     {
     // pointer could not be cast back down
     std::cerr << "itk::ImageBase::SetRequestedRegion(DataObject*) cannot
                cast "
               << typeid(data).name() << " to "
               << typeid(ImageBase*).name() << std::endl;
     }
 }