ImageReslice

VTKExamples/Cxx/ImageData/ImageReslice

Code

ImageReslice.cxx

#include <vtkVersion.h>
#include <vtkActor.h>
#include <vtkImageData.h>
#include <vtkIntArray.h>
#include <vtkProperty2D.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkSmartPointer.h>
#include <vtkImageReslice.h>

int main(int, char *[] )
{
  vtkSmartPointer<vtkImageData> image =
    vtkSmartPointer<vtkImageData>::New();
  image->SetExtent(0, 9, 0, 9, 0, 0);
#if VTK_MAJOR_VERSION <= 5
  image->SetNumberOfScalarComponents(1);
  image->SetScalarTypeToInt();
#else
  image->AllocateScalars(VTK_INT,1);
#endif
  int* pixel = static_cast<int*>(image->GetScalarPointer(0,9,0));
  std::cout << "pixel: " << *pixel << std::endl;

  vtkSmartPointer<vtkImageReslice> reslice =
    vtkSmartPointer<vtkImageReslice>::New();
  reslice->SetOutputExtent(0, 9, 0, 100, 0, 0);
#if VTK_MAJOR_VERSION <= 5
  reslice->SetInputConnection(image->GetProducerPort());
#else
  reslice->SetInputData(image);
#endif
  reslice->Update();

  int* pixel2 = static_cast<int*>(reslice->GetOutput()->GetScalarPointer(0,11,0));
  std::cout << "pixel2: " << *pixel2 << std::endl;

  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)

PROJECT(ImageReslice)

find_package(VTK REQUIRED)
include(${VTK_USE_FILE})

add_executable(ImageReslice MACOSX_BUNDLE ImageReslice.cxx )

target_link_libraries(ImageReslice ${VTK_LIBRARIES})

Download and Build ImageReslice

Click here to download ImageReslice and its CMakeLists.txt file. Once the tarball ImageReslice.tar has been downloaded and extracted,

cd ImageReslice/build 

If VTK is installed:

cmake ..

If VTK is not installed but compiled on your system, you will need to specify the path to your VTK build:

cmake -DVTK_DIR:PATH=/home/me/vtk_build ..

Build the project:

make

and run it:

./ImageReslice

WINDOWS USERS

Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.