[vtkusers] problems with vtkCamera

[Brenno Ribeiro]

//THIS IS MY CODE

#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkRescaleIntensityImageFilter.h"
#include "itkGDCMImageIO.h"
#include "itkImageToVTKImageFilter.h"
#include "vtkSphereSource.h"
#include "vtkPolyDataMapper.h"
#include "vtkProperty.h"
#include "vtkActor.h"
#include "vtkRenderWindow.h"
#include "vtkRenderer.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkCamera.h"
#include "vtkContourFilter.h"
#include "vtkPolyDataNormals.h"
#include "vtkImageGaussianSmooth.h"
#include "itkImage.h"
#include "itkSmoothingRecursiveGaussianImageFilter.h"
#include "itkRescaleIntensityImageFilter.h"
#include "vtkImageViewer.h"


int main( int argc, char* argv[] )
{

    typedef signed short InputPixelType;
    const unsigned int InputDimension = 2;


    typedef itk::Image< InputPixelType, InputDimension > InputImageType;
    typedef itk::Image< InputPixelType, InputDimension > GaussianImageType;
    typedef itk::Image< InputPixelType, InputDimension > WriteImageType;

    typedef itk::ImageFileReader< InputImageType >   ReaderType;
    typedef itk::ImageFileWriter< InputImageType >   WriterType;
    typedef itk::ImageToVTKImageFilter<InputImageType>   FilterType;
    typedef itk::GDCMImageIO ImageIOTypeGDCM;
    typedef itk::SmoothingRecursiveGaussianImageFilter< InputImageType ,
GaussianImageType > SmoothingFilterType;
    typedef itk::RescaleIntensityImageFilter< InputImageType,
WriteImageType > RescaleFilterType;


    ReaderType::Pointer reader = ReaderType::New();
    FilterType::Pointer connector = FilterType::New();
    ImageIOTypeGDCM::Pointer gdcmImageIO = ImageIOTypeGDCM::New();
    SmoothingFilterType::Pointer smoother = SmoothingFilterType::New();
    RescaleFilterType::Pointer rescaler = RescaleFilterType::New();

    const char * inputDicomFilename  = argv[1];

    reader->SetFileName( inputDicomFilename );
    reader->SetImageIO( gdcmImageIO );

    try
    {
    reader->Update();
    }
    catch (itk::ExceptionObject & e)
    {
    std::cerr << "exception in file reader " << std::endl;
    std::cerr << e << std::endl;
    return EXIT_FAILURE;
    }

    rescaler->SetOutputMinimum(   0 );
    rescaler->SetOutputMaximum( 255 );

    //smoother->SetSigma( 1.0 );
    //smoother->SetNormalizeAcrossScale( true );

    rescaler->SetInput( reader->GetOutput() );
    connector->SetInput( rescaler->GetOutput() );

    try
      {
      connector->Update();
      }
    catch( itk::ExceptionObject & err )
      {
      std::cerr << "ExceptionObject caught !" << std::endl;
      std::cerr << err << std::endl;
      return EXIT_FAILURE;
      }

    vtkContourFilter *isoSurface = vtkContourFilter::New();
    vtkPolyDataNormals *normals = vtkPolyDataNormals::New();
    vtkImageGaussianSmooth *smooth = vtkImageGaussianSmooth::New();

    isoSurface->SetValue(90,90);
    isoSurface->SetInput(connector->GetOutput() );

    try
      {
      isoSurface->Update();
      }
    catch( itk::ExceptionObject & err )
      {
      std::cerr << "ExceptionObject caught !" << std::endl;
      std::cerr << err << std::endl;
      return EXIT_FAILURE;
      }

    normals->SetInput( isoSurface->GetOutput() );

    try
      {
      normals->Update();
      }
    catch( itk::ExceptionObject & err )
      {
      std::cerr << "ExceptionObject caught !" << std::endl;
      std::cerr << err << std::endl;
      return EXIT_FAILURE;
      }


  vtkPolyDataMapper *map = vtkPolyDataMapper::New();
  map->SetInput(normals->GetOutput());// isoSurface->GetOutput()

  vtkActor *aSphere = vtkActor::New();//don't used
  vtkRenderer *ren1 = vtkRenderer::New();
  vtkRenderWindow *renWin = vtkRenderWindow::New();
  vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();

  aSphere->SetMapper(map);//don't used
  aSphere->GetProperty()->SetColor(0,0,1); //don't used

  renWin->AddRenderer(ren1);


  iren->SetRenderWindow(renWin);

  ren1->AddActor(aSphere);//don't used
  ren1->SetBackground(0,0,0); //don't used

  renWin->Render();


  vtkCamera * cam = ren1->GetActiveCamera();

  cam->SetViewUp(0, -1, 0);
  cam->Azimuth(180);


  ren1->ResetCamera();
  iren->Start();


  ren1->Delete();
  renWin->Delete();
  iren->Delete();
  return EXIT_SUCCESS;

}

-- 
Brenno Bernardes Ribeiro

Engenharia da Computação
Universidade Federal do Pará
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