[Paraview] Fwd: pvtu file displaying issue

[Ling Zou]

---------- Forwarded message ----------
From: Ling Zou <lingzou80 at gmail.com>
Date: Wed, Jul 3, 2013 at 11:32 AM
Subject: pvtu file displaying issue
To: paraview at paraview.org


Dear all,

I had some problem with Paraview to display pvtu file correctly. The
followings are the details.


==== Key word: ====
vtu file, pvtu file, Paraview, random non-zero values shown

==== Background: ====
I have two vtu files, both of which have one-dimensional unstructured mesh.
File 1 (HeatConductionCOuput_0.vtu) has PointData, with name "stress". File
2 (SodShockTubeCOutput_0.vtu) has CellData "temp" and "temp2".
Both of them works fine with Paraview, if read-in separately.

==== Issue ====
I then have a pvtu file to combine them, (combined_0.pvtu), which has
PointData "stress" and CellData "temp". Paraview displays this combined
file well with "stree" and "temp" loaded in. Since CellData "temp" does not
exist in the HeatConductionCOuput_0 piece, I expected Paraview should treat
them as "zeros". However, Paraview sometimes gives random non-zero values
on this piece (please see attachment).

==== Questions ====
1) Is my pvtu file wrong?
2) Is it a bug in Paraview to show random non-zero values?
3) How should I fix this issue?

Best,

Ling
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