[Paraview] error with vtkAMRDualGridHelper

[Favre Jean]

I have my own reader for AMR data which produces only PointData, no CellData.

When doing Contour (with a recent CVS version), I get errors like this, and then a crash:

ERROR: In /local/data/jfavre/ParaView3/Servers/Filters/vtkAMRDualGridHelper.cxx, line 727
vtkAMRDualGridHelper (0x2abe6e0): Could not find the data type size.

Can the Grid Helper not handle PointData only?
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Jean M. Favre
Swiss National Supercomputing Center