Python: read obj files and write vtp

[zhangx29]

Hi all,

I am trying to read a obj file, add some variables and write into vtp file. It seems the number of points read from obj file is alway 0. I have viewed the obj file and it looks fine. Here is a segment of the code:

reader = vtk.vtkOBJReader()

reader.SetFileName(sys.argv[1])

reader.Update()

print reader.GetOutput().GetNumberOfPoints() # always get 0 here

writer = vtk.vtkXMLPolyDataWriter()

writer.SetFileName(sys.argv[2])

writer.SetInput(reader.GetOutput())

writer.Write()

Is there something wrong in the code? Thanks,

Xiaoli