[vtkusers] read .vtk file

[shirani kannangara]

Dear Alex
I want to read an image data file (.vtk format) and visualize it.I tried
with ImageReader2.Cxx. I am using VTK version 5.10 and  CMake2.8.9. Though
it made .exe file does not dispaly any.My codes are below.I am highly
appreciated if you could help me.

Shirani

#include <vtkSmartPointer.h>
#include <vtkImageReader2.h>
#include <vtkImageData.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkInteractorStyleImage.h>
#include <vtkRenderer.h>
#include <vtkImageActor.h>

int main(int argc, char *argv[])
{
  // Verify command line arguments
  /*if(argc < 2)
    {
    std::cout << "Usage: " << argv[0]
              << " InputFilename" << std::endl;
    return EXIT_FAILURE;
    }*/
  // Parse command line arguments
  std::string inputFilename =("D:\\To_SMK\\rgbabdomen\\Debug\\output.vtk");

  // Read file
  vtkSmartPointer<vtkImageReader2> reader =
    vtkSmartPointer<vtkImageReader2>::New();
  reader->SetFileName(("D:\\To_SMK\\rgbabdomen\\Debug\\output.vtk"));
  reader->SetDataScalarTypeToUnsignedChar();
  reader->Update();

  // Create an actor
  vtkSmartPointer<vtkImageActor> actor =
    vtkSmartPointer<vtkImageActor>::New();
  actor->SetInput(reader->GetOutput());

  // Setup renderer
  vtkSmartPointer<vtkRenderer> renderer =
    vtkSmartPointer<vtkRenderer>::New();
  renderer->AddActor(actor);
  renderer->ResetCamera();

  // Setup render window
  vtkSmartPointer<vtkRenderWindow> renderWindow =
    vtkSmartPointer<vtkRenderWindow>::New();
  renderWindow->AddRenderer(renderer);

  // Setup render window interactor
  vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
    vtkSmartPointer<vtkRenderWindowInteractor>::New();
  vtkSmartPointer<vtkInteractorStyleImage> style =
    vtkSmartPointer<vtkInteractorStyleImage>::New();

  renderWindowInteractor->SetInteractorStyle(style);

  // Render and start interaction
  renderWindowInteractor->SetRenderWindow(renderWindow);
  renderWindowInteractor->Initialize();

  renderWindowInteractor->Start();

  return EXIT_SUCCESS;
}
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