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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: 2007-08-22 12:57:40 $
00007   Version:   $Revision: 1.55 $
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 
00051 template <class TOutputImage>
00052 class ITK_EXPORT ImageSource : public ProcessObject
00053 {
00054 public:
00056   typedef ImageSource         Self;
00057   typedef ProcessObject  Superclass;
00058   typedef SmartPointer<Self>  Pointer;
00059   typedef SmartPointer<const Self>  ConstPointer;
00060 
00062   typedef DataObject::Pointer DataObjectPointer;
00063 
00065   itkTypeMacro(ImageSource,ProcessObject);
00066 
00068   typedef TOutputImage OutputImageType;
00069   typedef typename OutputImageType::Pointer OutputImagePointer;
00070   typedef typename OutputImageType::RegionType OutputImageRegionType;
00071   typedef typename OutputImageType::PixelType OutputImagePixelType;
00072 
00113   OutputImageType * GetOutput(void);
00114   OutputImageType * GetOutput(unsigned int idx);
00116 
00152   virtual void GraftOutput(DataObject *output);
00153 
00160   virtual void GraftNthOutput(unsigned int idx, DataObject *output);
00161 
00175   virtual DataObjectPointer MakeOutput(unsigned int idx);
00176 
00177 protected:
00178   ImageSource();
00179   virtual ~ImageSource() {}
00180   
00196   virtual void GenerateData();
00197 
00220   virtual
00221   void ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread,
00222                             int threadId ) ITK_NO_RETURN;
00223 
00224 
00230   virtual void AllocateOutputs();
00231 
00242   virtual void BeforeThreadedGenerateData() {};
00243 
00254   virtual void AfterThreadedGenerateData() {};
00255 
00261   virtual
00262   int SplitRequestedRegion(int i, int num, OutputImageRegionType& splitRegion);
00263 
00267   static ITK_THREAD_RETURN_TYPE ThreaderCallback( void *arg );
00268 
00270   struct ThreadStruct
00271   {
00272    Pointer Filter;
00273   };
00274 
00275 private:
00276   ImageSource(const Self&); //purposely not implemented
00277   void operator=(const Self&); //purposely not implemented
00278 
00279 };
00280 
00281 } // end namespace itk
00282 
00283 // Define instantiation macro for this template.
00284 #define ITK_TEMPLATE_ImageSource(_, EXPORT, x, y) namespace itk { \
00285   _(1(class EXPORT ImageSource< ITK_TEMPLATE_1 x >)) \
00286   namespace Templates { typedef ImageSource< ITK_TEMPLATE_1 x > ImageSource##y; } \
00287   }
00288 
00289 #if ITK_TEMPLATE_EXPLICIT
00290 # include "Templates/itkImageSource+-.h"
00291 #endif
00292 
00293 #if ITK_TEMPLATE_TXX
00294 # include "itkImageSource.txx"
00295 #endif
00296 
00297 #endif
00298   
00299 

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