vtkAppendPolyData

[Kenneth Wang]

Hello,

When running the following script, I get different results under vtk
2.2 versus 2.4.  Can somebody tell me why?

Thanks,
Ken W.


script
------
vtkPolyDataReader rdr
  rdr SetFileName /tmp/test.vtk    ;# file has 192 points
  rdr Update

vtkAppendPolyData app
  app AddInput [rdr GetOutput]

puts "pd:  [[rdr GetOutput] GetNumberOfPoints]"
puts "app: [[app GetOutput] GetNumberOfPoints]"

app Update
puts "app: [[app GetOutput] GetNumberOfPoints]"


vtk-2.2 output
--------------
pd:  192
app: 0
app: 192


vtk-2.4 output
--------------
pd:  192
app: 0
app: 0

ERROR In vtkAppendPolyData.cxx, line 253
vtkAppendPolyData (0x1aa8c8): No data to append!


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