[Paraview] Creating movies using multiple HDF5 data files
Pradeep Jha
pradeep.kumar.jha at gmail.com
Thu Jan 24 07:43:14 EST 2013
Hello David,
thanks for the response. I haven't had a chance to look into it yet. Once I figure it out, I will surely put it on.
I am facing another issue. I want to export a movie in the avi format. When I am trying to export the movie in PV, the "save animation" window is not giving me the option to save it in the avi format (screenshot attached below). I am using Paraview 3.98. Why is this happening?
Also, I would like to confirm: I load a xmf file in PV with multiple hdf5 filenames declared, each carrying the solution at a different time step. When I apply a filter, say contour for example (as shown in the screenshot), this filter is applied to all the hdf5 files declared in the xmf file? So when I click on the play button in the animation bar, does PV shows me the same features for all the files at different time-steps?
Thanks for your answers,
Regards,
Pradeep
Le 18 janv. 2013 à 23:21, David E DeMarle <dave.demarle at kitware.com> a écrit :
> 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
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>>> 1 Rue de La Noë, 44321 Nantes, FRANCE
>>> -------------------------------------
>>>
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>>
>>
>>
>> _______________________________________________
>> 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
>
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