[Paraview] xdmf issues with paraview 2.6.2?

[David E DeMarle]

The vtkXdmf reader and writer were rewritten during ParaView 3.7. (So
they appear first in release 3.8.)

Specifically they were rewritten so as to use the xdmf library to do
the bulk of the xml file wrangling that the original vtk classes did
on their own. This was possible because of the update of the xdmf
library itself from xdmf1 to xdmf2 that came into ParaView first in
version 3.3.

The benefits of the newer reader were mostly structural, better
composite data support, greater efficiency, somewhat better
parallelism and greater maintainability.

If you have to make 3.6.2 read that data, you will probably need this
particular change, in which Kenneth Leiter fixed support for tensor6
data. I believe this also first appeared in ParaView 3.7.

commit 9f8c35ddcb94bed2b5faf008503873ebb086a826
Author: Kenneth Leiter <kenneth.leiter at arl.army.mil>
Date:   Tue Jul 21 16:06:37 2009 -0400

    ENH: Read in Tensor6 to VTK

David E DeMarle
Kitware, Inc.
R&D Engineer
28 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-371-3971 x109



On Mon, Apr 18, 2011 at 8:40 AM, Utkarsh Ayachit
<utkarsh.ayachit at kitware.com> wrote:
> ParaView's XDMF reader was significantly revamped in past possibly
> 3.8, I can't remember.So it's possible that older versions don't
> support all xdmf files.
>
> Utkarsh
>
> On Sun, Apr 17, 2011 at 4:38 PM, Pratik Mallya <pratik.mallya at gmail.com> wrote:
>> I am currently using 3.10...but since clusters in my office have 3.6.2
>> installed i tried to use that version. However, for this file:
>>
>> <?xml version="1.0" ?>
>> <!DOCTYPE Xdmf SYSTEM "Xdmf.dtd" []>
>> <Xdmf>
>>   <Domain Name="test.xdmf">
>>               <Grid Name="TensGrid">
>>                   <Topology TopologyType="2DSMesh" Dimensions = "256 256 ">
>>                   </Topology>
>>                   <Geometry GeometryType="X_Y">
>>                           <DataItem Dimensions="256 256" NumberType="Float"
>> Precision="8" Format="HDF">
>>                               Q.h5:/X
>>                           </DataItem>
>>                           <DataItem Dimensions="256 256 " NumberType="Float"
>> Precision="8" Format="HDF">
>>                               Q.h5:/Y
>>                           </DataItem>
>>                   </Geometry>
>>                   <Attribute Name="S" Center="Node" AttributeType="Scalar"
>> Precision="8">
>>                       <DataItem Format="HDF" Center="Node"
>> NumberType="Float" Dimensions="256 256" Precision="8">
>>                           Q.h5:/S
>>                       </DataItem>
>>                   </Attribute>
>>                   <Attribute Name="sig" Center="Node"
>>  AttributeType="Tensor" Precision="8">
>>                       <DataItem  Format="HDF" NumberType="Float"
>> Dimensions="256 256 8" Precision="8">
>>                           Q.h5:/Q
>>                       </DataItem>
>>                   </Attribute>                 </Grid>
>>   </Domain>
>> </Xdmf>
>> ....a simple xdmf for reading data, paraview 3.6 gives an error:
>>
>> ERROR: In
>> /home/pratik/Manually_Installed_Softwares/numerical/ParaView/ParaView-3.6.2/VTK/Filtering/vtkDataSet.cxx,
>> line 406
>>
>> vtkStructuredGrid (0xb091888): Point array sig with 9 components, only has
>> 14563 tuples but there are 65536 points
>>
>>
>> whereas 3.10 does not.
>> Was there a different format for reading xdmf files in pv3.6? I did try
>> playing around with the dimensions, but it still didn't work.
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