[Paraview] Creating movies using multiple HDF5 data files

[David E DeMarle]

See near top of: http://www.xdmf.org/index.php/XDMF_Model_and_Format
I think that either xinclude or xpath can reduce the size of the xdmf
file by acting like a macro that gets repeatedly expanded.

However, I vaguely remember that the last time I tried that approach
it didn't work right off the bat and I moved on to something else. If
you do get it to work, can you please post a code snippet? We can put
it on the wiki for the next person who runs into that problem.

David E DeMarle
Kitware, Inc.
R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909


On Thu, Jan 17, 2013 at 9:50 PM, Pradeep Jha
<pradeep at ccs.engg.nagoya-u.ac.jp> wrote:
> Hello,
>
> thanks for the response. I managed to create and xdmf file that seems to be
> working.
>
> But I want to know if I can make the file more concise. I am dealing with a
> simple cube of dimension 512^3 for all time steps and the name of my
> variables and everything remains the same. Only the filename changes. Right
> now my xmf file looks like this:
>
> ------------------------------------------------------------------------------------------------------------------------
> <?xml version="1.0" ?>
> <!DOCTYPE Xdmf SYSTEM "Xdmf.dtd" []>
> <Xdmf Version="2.0">
>   <Domain>
> <!-- First time step -->
>     <Grid Name="Box" GridType="Collection" CollectionType="Temporal">
>     <Grid Name="Box 0" GridType="Uniform">
>       <Topology TopologyType="3DCoRectMesh" Dimensions="512 512 512"/>
>       <Geometry GeometryType="ORIGIN_DXDYDZ">
>         <DataItem DataType="Float" Dimensions="3" Format="XML">0.0 0.0
> 0.0</DataItem>
>         <DataItem DataType="Float" Dimensions="3" Format="XML">0.1 0.1
> 0.1</DataItem>
>       </Geometry>
>       <Time Value="0.0" />
>       <Attribute Name="w1" AttributeType="Scalar" Center="Node">
>         <DataItem Dimensions="512 512 512" NumberType="Float" Precision="4"
> Format="HDF">
>           w1_111.h5:/w1
>         </DataItem>
>       </Attribute>
>     </Grid>
> <!-- second time step -->
>     <Grid Name="Box 7" GridType="Uniform">
>       <Topology TopologyType="3DCoRectMesh" Dimensions="512 512 512"/>
>       <Geometry GeometryType="ORIGIN_DXDYDZ">
>         <DataItem DataType="Float" Dimensions="3" Format="XML">0.0 0.0
> 0.0</DataItem>
>         <DataItem DataType="Float" Dimensions="3" Format="XML">0.1 0.1
> 0.1</DataItem>
>       </Geometry>
>       <Time Value="2.0" />
>       <Attribute Name="w1" AttributeType="Scalar" Center="Node">
>         <DataItem Dimensions="512 512 512" NumberType="Float" Precision="4"
> Format="HDF">
>           w1_465.h5:/w1
>         </DataItem>
>       </Attribute>
>     </Grid>
>     </Grid>
>  </Domain>
> </Xdmf>
> ------------------------------------------------------------------------------------------------------------------------
>
> But if I want to read like 10 variables from the same file, and I have
> around 100 time steps, this file can become extremely long and ugly. Is
> there a more elegant format of XMF file? It seems stupid to repeat the grid
> and variable name information again and again unless they really change.
>
> Thanks
> Pradeep
>
>
> 2013/1/17 Felipe Bordeu <felipe.bordeu at ec-nantes.fr>
>>
>> You can generate one (and only one) xdmf file with "temporal information",
>> pointing to each one of your HDF5 files. So ParaView will be aware of the
>> temporal dimension of your data.
>>
>> More info in  http://www.xdmf.org/index.php/XDMF_Model_and_Format.
>>
>> Felipe
>>
>>
>> Le 17/01/2013 03:17, Pradeep Jha a écrit :
>>>
>>> Hello,
>>>
>>> I have multiple HDF5 data files containing information at different time
>>> steps of a flow simulation. I am using a XDMF file to visualize them.
>>>
>>> I want to visualize the evolution of a particular iso-surface and data
>>> over a slice. How can I perform the same set of operation over all these
>>> files and then combine them together to make a movie out of it? Should I
>>> save a python state file of one time step and then use pvpython to combine
>>> all these python state files? There are over 1000 time steps, so I cannot do
>>> it manually.
>>>
>>> Also, is there any specific trick to make the movie in real time?
>>>
>>> Thanks,
>>> Pradeep
>>>
>>> _______________________________________________
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>>
>>
>>
>> --
>> Felipe Bordeu Weldt
>> Ingénieur de Recherche
>> -------------------------------------
>> Tél. : 33 (0)2 40 37 16 57
>> Fax. : 33 (0)2 40 74 74 06
>> Felipe.Bordeu at ec-nantes.fr
>> Institut GeM - UMR CNRS 6183
>> École Centrale Nantes
>> 1 Rue de La Noë, 44321 Nantes, FRANCE
>> -------------------------------------
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the ParaView Wiki at:
>> http://paraview.org/Wiki/ParaView
>>
>> Follow this link to subscribe/unsubscribe:
>> http://www.paraview.org/mailman/listinfo/paraview
>
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the ParaView Wiki at:
> http://paraview.org/Wiki/ParaView
>
> Follow this link to subscribe/unsubscribe:
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>