Hi Matthias,
Try changing your Topology tag to:
<Topology TopologyType="Polyvertex" NumberOfElements="2">
The NumberOfElements property corresponds to the number of points or
particles you have in your system for a Polyvertex type file.
This shouldn't be (but seems to often be) confused with the Dimension
property of the DataItem for the Geometry.
The best way to think about it from my experience is that the
NumberOfElements is a grid topology specific item, so it should be
related to the grid itself (i.e. you're grid is just 2 particle).
This is in contrast to the Dimensions property of the Geometry, which
is related to the underlying data (which in this case is Dimensions="2
3" because you are using <Geometry Type="XYZ>). Dimension is a
general property of any underlying data (i.e. Geomety or any scalar/
vector/tensor, etc.) and is uniquely determined by the nature of the
underlying data rather than the way you intend on representing it on
the grid.
Also, when you get a crash - it can be handy to check the log files to
see what went wrong. On OS X (sorry I don't know about other systems)
you can access all the logs (Paraview logs, as well as the overall
system logs) in the Console. I've found this useful when I cause PV
to crash with a bad XDMF file as otherwise you don't get much
information because the application crashes so fast it is impossible
to read the error message that pops up.
Dan
On 14-Feb-11, at 9:56 PM, Matthias Kaczorowski wrote:
I'm trying to visualize some particles in a fluid flow using xdmf
(loading an
HDF5 file). From the info in the mail archives I tried to generate a
simple
example using Polyvertexes. However, this simple example file causes
ParaView to
crash.
I guess, I haven't fully understood the use of the Polyvertex
topology. Thanks
for any advice,
Matthias
<?xml version="1.0" ?> <!DOCTYPE Xdmf SYSTEM "Xdmf.dtd" []>
<Xdmf xmlns:xi="http://www.w3.org/2003/XInclude"; Version="2.2">
<Domain>
<Grid Name="Points" Type="Uniform">
<Topology TopologyType="Polyvertex" NumberOfElements="1">
</Topology>
<Geometry Type="XYZ">
<DataItem Format="XML" Dimensions="2 3">
0.0 0.0 0.0
1.0 1.0 1.0
</DataItem>
</Geometry>
</Grid>
</Domain>
</Xdmf>
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