[vtkusers] Volume Rendering Problem in ActiViz 6.2

[Mark DeArman]

Where is the object null?  Right after the call  vtkCleanPolyData 
removepoints = new vtkCleanPolyData();  ??
  
  Mark DeArman
 Cascade Acoustic Research
 http://www.cascadeacoustic.com
 (253) 200-5353

  

----------------------------------------
 From: "Matias Montroull" <matimontg at gmail.com>
Sent: Thursday, September 24, 2015 7:18 PM
To: "vtkusers at vtk.org" <vtkusers at vtk.org>
Subject: [vtkusers] Volume Rendering Problem in ActiViz 6.2   
 Hi,  
 I was using ActiVIz 5.8 and this code below was working just fine:
 Now, I've installed the 6.2 version and the vtkCleanPolyData object is 
null for some reason..
 Has anything changed in Volume reconstruction from a Dicom Series from 
version to version?
  
 Thanks,
  
   vtkDICOMImageReader readerdicom = new vtkDICOMImageReader();
             
readerdicom.SetDirectoryName(path_directorio_imagenes_originales);
             double origen_X = -pixelspacing_X * (img[0].Width) / 2;
             double origen_Y = -pixelspacing_Y * (img[0].Height) / 2;
             readerdicom.SetDataOrigin(origen_X, origen_Y, -Z_max);
             readerdicom.Update();
  
             //Filtro para dar vuelta la imagen
             vtkImageReslice reslice = new vtkImageReslice();
             reslice.SetResliceAxesDirectionCosines(-1, 0, 0, 0, 1, 0, 0, 
0, -1);
             reslice.SetInputConnection(readerdicom.GetOutputPort());
             reslice.Update();
  
             //Filtro para extraer la piel (por ISOValue)
             vtkMarchingCubes skinextractor = vtkMarchingCubes.New();
             skinextractor.SetInputConnection(reslice.GetOutputPort());
             skinextractor.SetValue(1, umbral);
             
             //Filtro para quedarnos solamente con el contorno (visual)
             vtkPolyDataConnectivityFilter contornos = new 
vtkPolyDataConnectivityFilter();
             contornos.SetInputConnection(skinextractor.GetOutputPort());
             contornos.SetExtractionModeToLargestRegion();
             contornos.SetColorRegions(1);
  
             //Filtro para remover los puntos que no son del contorno y 
guardarlos en la instancia POIs_3D
             vtkCleanPolyData removepoints = new vtkCleanPolyData();
             removepoints.SetInputData(contornos.GetOutput());
             removepoints.Update();
             vtkPoints puntos_contorno = new vtkPoints();
             puntos_contorno = removepoints.GetOutput().GetPoints();

 --
 Matias


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