[vtkusers] display 200 DICOM images in 3d using VTK

[marco festugato]

Hi guys, Im' really new to VTK. What I want to do is displaying 200 DICOM
images in 3D using VTK but I really don't know how this works...is the
pipeline like this:

reader -> mapper -> actor -> renderer   ???

Here's my code:

#include <vtkSmartPointer.h>
#include <vtkDICOMImageReader.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>
#include <vtkImageMapper.h>
#include <vtkActor.h>

int main(int argc, char* argv[])
{
  // Verify input arguments
  if ( argc != 2 )
    {
    std::cout << "Usage: " << argv[0]
              << "- FolderDirectoryDICOMimages" << std::endl;
    return EXIT_FAILURE;
    }
    
  std::string inputFilename = argv[1];
  
  // Read all the DICOM files in the specified directory.
  vtkSmartPointer<vtkDICOMImageReader> reader
=vtkSmartPointer<vtkDICOMImageReader>::New();
  reader->SetDirectoryName(argv[1]); 
  reader->Update();

  // Visualize
  vtkSmartPointer<vtkImageMapper> mapper =
vtkSmartPointer<vtkImageMapper>::New();
  vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New();
  vtkSmartPointer<vtkRenderWindowInteractor> iren =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
  vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
  vtkSmartPointer<vtkRenderWindow> renWin =
vtkSmartPointer<vtkRenderWindow>::New();
  
  mapper -> SetInputData(reader -> GetOutputPort());
  actor-> SetMapper(mapper);
  renderer-> AddActor(actor);
  renderer->SetBackground(0,0,0);
  renWin-> AddRenderer(renderer);
  renWin->SetSize(800,800);
  iren->SetRenderWindow(renWin);
   
  renWin->Render(); 
  iren->Start();

  return EXIT_SUCCESS;
}



I receive an error when using "SetInputData" and "GetOutputPort"...what else
should I use? I can't find anything online.
Thanks in advance for your answer!



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