We've never had any luck getting time series with XDMF to work correctly in
Paraview.
However, we create animations all the time. Using the python trace feature, we
set up the image using one of the files from the dataset. Then we modify the
generated trace file slightly (make it so it's a function that takes in the
file number we want, and delete the pipeline at the end so it doesn't blow up
memory) and then create the frames through a python driver script.
It's actually very simple and can be done in parallel with either multiple
processors generating an image or multiple images being generated
simultaneously.
Tim
----- Original Message -----
From: "Jens Kleimann" <j...@tp4.rub.de>
To: x...@lists.kitware.com, paraview@paraview.org
Sent: Friday, July 6, 2012 8:56:47 AM
Subject: [Xdmf] XDMF Time value problem
Greetings!
I have a collection of XDMF files, each of which contains the state of my
simulation at a single instant of time. The goal is to read them into Paraview
all at once, and then generate an animation with time as a parameter using the
green arrow buttons. Unfortunately, I am having much trouble getting this to
work.
A simplified version of my set of files (just XML, no HDF involved to
demonstrate the idea and the problem) goes like this: File "timetest_1.xmf"
reads:
<?xml version="1.0" ?>
<!DOCTYPE Xdmf SYSTEM "Xdmf.dtd" []>
<Xdmf Version="2.0">
<Domain>
<Grid Name="timetest_mesh">
<Time Value="0.1" />
<Topology TopologyType="3DCoRectMesh" Dimensions="3 2 2"/>
<Geometry GeometryType="Origin_DxDyDz">
<DataItem Dimensions="3"> 0.0 0.0 0.0 </DataItem>
<DataItem Dimensions="3"> 0.1 0.2 0.3 </DataItem>
</Geometry>
<Attribute Name="numbers">
<DataItem Dimensions="2 2 3">
4 3 4 3 1 2 0 0 1 2 3 4
</DataItem>
</Attribute>
</Grid>
</Domain>
</Xdmf>
"timetest_2.xmf" looks the same except that the time value is "0.2" and the
values in the "numbers" attribute are chosen to be a bit different, and
similarly for "timetest_3.xmf". I can load the whole set as "timetest_..xmf"
into PV (3.14 64bit Linux, if that should matter), but when I hit play, the
time runs from 0.1 to 1 in steps of 0.1 but only showing data from the very
first file. The last number field in the animation toolbar never shows anything
else than 0. The "Time" information field gives the correct (initial!) time
value but an "index" of 0, also when loading the files individually.
Does anyone have a clue what I am doing wrong? Creating animations from my
simulation is essential to my application of PV, so I'd be great if someone
could have a look at this. For a quick test, the mentioned set of files can be
obtained from [http://www.tp4.rub.de/~jk/temp/xdmf_timetest.zip].
Cheers, Jens.
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