itkv4 migration:

[clitk.git] / common / vvFromITK.h

diff --git a/common/vvFromITK.h b/common/vvFromITK.h
index 33c2f9bbc4b90f5815fa573033c56c48d28f0a1c..bd075731304eeb0ed735093edef484d45e3541d5 100644 (file)
--- a/common/vvFromITK.h
+++ b/common/vvFromITK.h
@@ -1,10 +1,30 @@
+/*=========================================================================
+  Program:   vv                     http://www.creatis.insa-lyon.fr/rio/vv
+
+  Authors belong to: 
+  - University of LYON              http://www.universite-lyon.fr/
+  - Léon Bérard cancer center       http://oncora1.lyon.fnclcc.fr
+  - CREATIS CNRS laboratory         http://www.creatis.insa-lyon.fr
+
+  This software is distributed WITHOUT ANY WARRANTY; without even
+  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+  PURPOSE.  See the copyright notices for more information.
+
+  It is distributed under dual licence
+
+  - BSD        See included LICENSE.txt file
+  - CeCILL-B   http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html
+======================================================================-====*/
 #ifndef VVIMAGEFROMITK_H
 #define VVIMAGEFROMITK_H
+
+// vv
 #include "vvImage.h"
-//#include <itkImage.h>
+
+// itk
 #include <itkExtractImageFilter.h>
-#include <itkImageToVTKImageFilter.h>
 
+//------------------------------------------------------------------------------
 /**Converts the itk image to vv, handling the 4D problem
  * The time_sequence boolean specifies that the image is to be interpreted as a time sequence,
  * even if its dim is < 4. */
@@ -12,77 +32,43 @@ template<unsigned int Dim, class PixelType> vvImage::Pointer vvImageFromITK(type
 {
     assert(Dim < 5 && Dim > 0); // We don't handle anything higher than 4-dimensional (for the moment :-p)
     vvImage::Pointer vv_image=vvImage::New();
-    vv_image->Init(); //Delete any existing images
     typedef itk::Image< PixelType, Dim > InputImageType;
 
     if (Dim == 4 || time_sequence) //The time sequence case: create a series of VTK images
     {
-        typedef itk::Image< PixelType,  Dim - 1 >    ConnectorImageType;
-        typedef itk::ImageToVTKImageFilter <ConnectorImageType> ConnectorType;
-        typedef itk::ExtractImageFilter<InputImageType,ConnectorImageType> FilterType;
-
-        typename FilterType::Pointer filter = FilterType::New();
-        typename ConnectorType::Pointer connector = ConnectorType::New();
+        typedef itk::Image< PixelType,  Dim - 1 >    ItkImageType;
+        typedef itk::ExtractImageFilter<InputImageType, ItkImageType> FilterType;
 
         //extract the 3D slices and put them in a std::vector<vtkImageData*>
+        input->UpdateOutputInformation();
         typename InputImageType::RegionType inputRegion = input->GetLargestPossibleRegion();
         typename InputImageType::SizeType inputSize = inputRegion.GetSize();
-
+        typename InputImageType::IndexType start = inputRegion.GetIndex();
         typename InputImageType::SizeType extractedRegionSize = inputSize;
         typename InputImageType::RegionType extractedRegion;
         extractedRegionSize[Dim - 1] = 0;
         extractedRegion.SetSize(extractedRegionSize);
 
-        filter->SetInput(input);
-        connector->SetInput(filter->GetOutput());
-
-        typename InputImageType::IndexType start = inputRegion.GetIndex();
-
         for (unsigned int i = 0; i < inputSize[Dim - 1]; i++) {
             start[Dim - 1] = i;
             extractedRegion.SetIndex(start);
+
+            typename FilterType::Pointer filter = FilterType::New();
+            filter->SetDirectionCollapseToSubmatrix();
             filter->SetExtractionRegion(extractedRegion);
-            try {
-                filter->Update();
-            }
-            catch ( itk::ExceptionObject & err ) {
-                std::cerr << "Error while setting vvImage from ITK (Dim==4) [Extract phase]"
-                          << " " << err << std::endl;
-                return vv_image;
-            }
-            try {
-                connector->Update();
-            }
-            catch ( itk::ExceptionObject & err ) {
-                std::cerr << "Error while setting vvImage from ITK (Dim==4) [Connect phase]"
-                          << " " << err << std::endl;
-                return vv_image;
-            }
-            vtkImageData *image = vtkImageData::New();
-            image->DeepCopy(connector->GetOutput());
-            vv_image->AddImage(image);
+            filter->SetInput(input);
+            filter->ReleaseDataFlagOn();
+            vv_image->AddItkImage<ItkImageType>(filter->GetOutput());
         }
+        vv_image->SetTimeSpacing(input->GetSpacing()[Dim-1]);
+        vv_image->SetTimeOrigin(input->GetOrigin()[Dim-1]);
     }
     else //Dim == 1,2,3 and not time_sequence
     {
-        typedef itk::Image< PixelType,  Dim >    ConnectorImageType;
-        typedef itk::ImageToVTKImageFilter <ConnectorImageType> ConnectorType;
-        typename ConnectorType::Pointer connector = ConnectorType::New();
-        connector->SetInput(input);
-
-        try {
-            connector->Update();
-        }
-        catch ( itk::ExceptionObject & err ) {
-            std::cerr << "Error while setting vvImage from ITK (Dim==3)"
-                      << " " << err << std::endl;
-            return vv_image;
-        }
-        vtkImageData *image = vtkImageData::New();
-        image->DeepCopy(connector->GetOutput());
-        vv_image->AddImage(image);
+        vv_image->AddItkImage<InputImageType>(input);
     }
     return vv_image;
 }
+//------------------------------------------------------------------------------
 
 #endif //vvImageFromITK