gdcmPython/demo/vtkGdcmReader.py

   1 ## This demo illustrates the usage of the python-wrappers of vtkGdcmReader
   2 ## native C++ vtk class. vtkGdcmReader.cxx is a C++ level wrapper of
   3 ## gdcm which offers a vtk class vtkGdcmReader (inheriting from vtkImageReader,
   4 ## see gdcm/vtk/vtkGdcmReader.cxx). vtkgdcmPython wraps this class for
   5 ## python (by using vtk wrappers).
   6 from vtk import *
   7 from gdcmPython import *
   8 from gdcmPython.vtkgdcmPython import *
   9 import sys
  10
  11 ### Get filename from command line or default it
  12 try:
  13    FileName = sys.argv[1]
  14 except IndexError:
  15    FileName = os.path.join(GDCM_DATA_PATH, "test.acr")
  16
  17 ### Build the header element list
  18 test = gdcmHeader(FileName)
  19 if not test.IsReadable():
  20    print "The ", FileName, " file is not readable with gdcm. Sorry."
  21    sys.exit()
  22 del test
  23 toDisplay = vtkGdcmReader()
  24 toDisplay.AddFileName(FileName)
  25 ###toDisplay.DebugOn()
  26
  27 VTKtable = vtkLookupTable()
  28 VTKtable.SetNumberOfColors(1000)
  29 VTKtable.SetTableRange(0,1000)
  30 VTKtable.SetSaturationRange(0,0)
  31 VTKtable.SetHueRange(0,1)
  32 VTKtable.SetValueRange(0,1)
  33 VTKtable.SetAlphaRange(1,1)
  34 VTKtable.Build()
  35
  36 VTKtexture = vtkTexture()
  37 VTKtexture.SetInput(toDisplay.GetOutput())
  38 VTKtexture.InterpolateOn()
  39 VTKtexture.SetLookupTable(VTKtable)
  40
  41 VTKplane = vtkPlaneSource()
  42 VTKplane.SetOrigin( -0.5, -0.5, 0.0)
  43 VTKplane.SetPoint1(  0.5, -0.5, 0.0)
  44 VTKplane.SetPoint2( -0.5,  0.5, 0.0)
  45
  46 VTKplaneMapper = vtkPolyDataMapper()
  47 VTKplaneMapper.SetInput(VTKplane.GetOutput())
  48
  49 VTKplaneActor = vtkActor()
  50 VTKplaneActor.SetTexture(VTKtexture)
  51 VTKplaneActor.SetMapper(VTKplaneMapper)
  52 VTKplaneActor.PickableOn()
  53
  54 ren = vtkRenderer()
  55 renwin = vtkRenderWindow()
  56 renwin.AddRenderer(ren)
  57 iren = vtkRenderWindowInteractor()
  58 iren.SetRenderWindow(renwin)
  59 ren.AddActor(VTKplaneActor)
  60 ren.SetBackground(0,0,0.5)
  61 renwin.Render()
  62 iren.Start()
  63
  64
  65