[Paraview] XDMF data set not showing, or crashes

[Eric E. Monson]

Hey Jon,

I've never tried to use VxVyVz type geometry before, but I wonder whether it's some sort of problem with you trying to specify polar coordinates when it's expecting XYZ? You might want to play with a smaller sample file that just uses light data first, and then if you get that working you can make sure the same sort of arrays exist in your HDF5 file. Here's a sample that I modified from one of the standard Xdmf example data files (and which loads in ParaView 3.8.1 fine on my machine):

<?xml version="1.0" ?>
<!DOCTYPE Xdmf SYSTEM "Xdmf.dtd" []>
<Xdmf xmlns:xi="http://www.w3.org/2001/XInclude" Version="2.0">
	<Domain>
        <Information Name="Description">
            Example of a 2DRectMesh Topology with VxVy Geometry
        </Information>
        <Grid Name="2DRectMesh" GridType="Uniform">
            <Topology TopologyType="2DRectMesh"
                Dimensions="4 3">
            </Topology>
            <Geometry Type="VXVY">
                <!-- VX -->
                <DataItem Format="XML" Dimensions="4">
                0.0 1.0 2.0 4.0
                </DataItem>
                <!-- VY -->
                <DataItem Format="XML" Dimensions="3">
                0.0 1.0 3.0
                </DataItem>
            </Geometry>
            <Attribute Name="Node Centered Values" Center="Node">
                <DataItem Format="XML" Dimensions="4 3">
                100 200 300 400
                500 600 700 800
                900 1000 1100 1200
                </DataItem>
            </Attribute>
            <Attribute Name="Cell Centered Values" Center="Cell">
                <DataItem Format="XML" Dimensions="3 2">
                100 200 300 
                400 500 600
                </DataItem>
            </Attribute>
        </Grid>
    </Domain>
</Xdmf>

Good luck,
-Eric

------------------------------------------------------
Eric E Monson
Duke Visualization Technology Group


On Jan 27, 2011, at 11:04 AM, Jon Goldman wrote:

> Hi,
> 
> We have a 2D Uniform grid data set in XDMF format that we are trying to visualize with ParaView. The data is stored in a 1MB HDF5 data set. The (light) meta xdmf file is attached to this email.
> 
> I am seeing some problems when trying to load the data-- usually ParaView either crashes, or the data does not show. I have tried the PV 3.8.1 Windows binaries as well as building ParaView from source that I pulled a few days ago from the git://paraview.org/ParaView.git repository.
> 
> After loading the data and hitting Apply, the 3D render window will be empty. What I've noticed is that the Y-range of the Bounds will sometimes be extremely large. For example here is a snapshot from the Information tab:
> 
> <moz-screenshot-4.png>
> Are these known issues with ParaView?
> 
> Or perhaps the data is mal-formed, I am new to XDMF, so it'd help to know if there is an error in the .xmf file.
> 
> HDF5 tools like HDFView and h5dump don't report any anomalies on the HDF5 file that goes with the heavy data.
> 
> thanks
> -- 
> Jon Goldman
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