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itkImageSource.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkImageSource.h,v $
00005   Language:  C++
00006   Date:      $Date: 2003/12/04 17:30:20 $
00007   Version:   $Revision: 1.49 $
00008 
00009   Copyright (c) Insight Software Consortium. All rights reserved.
00010   See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
00011 
00012   Portions of this code are covered under the VTK copyright.
00013   See VTKCopyright.txt or http://www.kitware.com/VTKCopyright.htm for details.
00014 
00015      This software is distributed WITHOUT ANY WARRANTY; without even 
00016      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00017      PURPOSE.  See the above copyright notices for more information.
00018 
00019 =========================================================================*/
00020 #ifndef __itkImageSource_h
00021 #define __itkImageSource_h
00022 
00023 #include "itkProcessObject.h"
00024 #include "itkImage.h"
00025 
00026 namespace itk
00027 {
00028 
00040 template <class TOutputImage>
00041 class ITK_EXPORT ImageSource : public ProcessObject
00042 {
00043 public:
00045   typedef ImageSource         Self;
00046   typedef ProcessObject  Superclass;
00047   typedef SmartPointer<Self>  Pointer;
00048   typedef SmartPointer<const Self>  ConstPointer;
00049   
00051   typedef DataObject::Pointer DataObjectPointer;
00052 
00054   itkTypeMacro(ImageSource,ProcessObject);
00055 
00057   typedef TOutputImage OutputImageType;
00058   typedef typename OutputImageType::Pointer OutputImagePointer;
00059   typedef typename OutputImageType::RegionType OutputImageRegionType;
00060   typedef typename OutputImageType::PixelType OutputImagePixelType;
00061 
00102   OutputImageType * GetOutput(void);
00103   OutputImageType * GetOutput(unsigned int idx);
00104   
00140   virtual void GraftOutput(OutputImageType *output);
00141 
00148   virtual void GraftNthOutput(unsigned int idx, OutputImageType *output);
00149 
00163   virtual DataObjectPointer MakeOutput(unsigned int idx);
00164   
00165 protected:
00166   ImageSource();
00167   virtual ~ImageSource() {}
00168   
00184   virtual void GenerateData();
00185 
00208   virtual
00209   void ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread,
00210                             int threadId );
00211 
00212 
00218   virtual void PrepareOutputs() {};
00219 
00225   virtual void AllocateOutputs();
00226 
00237   virtual void BeforeThreadedGenerateData() {};
00238   
00249   virtual void AfterThreadedGenerateData() {};
00250   
00256   virtual
00257   int SplitRequestedRegion(int i, int num, OutputImageRegionType& splitRegion);
00258 
00262   static ITK_THREAD_RETURN_TYPE ThreaderCallback( void *arg );
00263 
00265   struct ThreadStruct
00266   {
00267    Pointer Filter;
00268   };
00269   
00270 private:
00271   ImageSource(const Self&); //purposely not implemented
00272   void operator=(const Self&); //purposely not implemented
00273 
00274 };
00275 #ifdef ITK_EXPLICIT_INSTANTIATION
00276    extern template class ImageSource<Image<float         ,2> >;
00277    extern template class ImageSource<Image<double        ,2> >;
00278    extern template class ImageSource<Image<unsigned char ,2> >;
00279    extern template class ImageSource<Image<unsigned short,2> >;
00280    extern template class ImageSource<Image<unsigned int  ,2> >;
00281    extern template class ImageSource<Image<signed char   ,2> >;
00282    extern template class ImageSource<Image<signed short  ,2> >;
00283    extern template class ImageSource<Image<signed int    ,2> >;
00284    extern template class ImageSource<Image<float         ,3> >;
00285    extern template class ImageSource<Image<double        ,3> >;
00286    extern template class ImageSource<Image<unsigned char ,3> >;
00287    extern template class ImageSource<Image<unsigned short,3> >;
00288    extern template class ImageSource<Image<unsigned int  ,3> >;
00289    extern template class ImageSource<Image<signed char   ,3> >;
00290    extern template class ImageSource<Image<signed short  ,3> >;
00291    extern template class ImageSource<Image<signed int    ,3> >;
00292 #endif
00293 
00294 } // end namespace itk
00295 
00296 #ifndef ITK_MANUAL_INSTANTIATION
00297 #include "itkImageSource.txx"
00298 #endif
00299 
00300 #endif
00301   

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