[Paraview] empty xdmf-file causes paraview crash

[Tommy Andersson]

Hi All,

I'm trying to get Paraview (5.0.0) to read *.xmf-files and encounter 
difficulties when the geometry is "empty". Paraview is then crashing. 
The example I'm using to encounter the error looks as follows:

<?xml version="1.0" ?>
<!DOCTYPE Xdmf SYSTEM "Xdmf.dtd" []>
<Xdmf xmlns:xi="http://www.w3.org/2003/XInclude" Version="2.2">
   <Domain>
     <Grid GridType="Uniform">
       <Topology TopologyType="Triangle" Dimensions="0">
       </Topology>
       <Geometry GeometryType="XYZ" Dimensions="0">
       </Geometry>
     </Grid>
   </Domain>
</Xdmf>

How is an empty xdmf geometry supposed to be specified?

One workaround is to add a dummy point e.g.

<?xml version="1.0" ?>
<!DOCTYPE Xdmf SYSTEM "Xdmf.dtd" []>
<Xdmf xmlns:xi="http://www.w3.org/2003/XInclude" Version="2.2">
   <Domain>
     <Grid GridType="Uniform">
       <Topology TopologyType="Triangle" Dimensions="0">
       </Topology>
       <Geometry GeometryType="XYZ">
         <DataItem Dimensions="1 3" NumberType="Float" Precision="4" 
Format="XML">
0 0 0
</DataItem>
       </Geometry>
     </Grid>
   </Domain>
</Xdmf>

Will I have to settle with this workaround? How is an empty geometry 
supposed to be specified?

-- 
*Tommy Andersson*
Computational Engineering and Design
Fraunhofer-Chalmers Centre (FCC)

Phone: +46 (0)31 772 4288
tommy.andersson at fcc.chalmers.se
www.fcc.chalmers.se
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