[Paraview] How to read the file info in *pvd file

[Cory Quammen]

Did you make progress on this? You should just be able to use your
favorite Python XML module to locate all the <DataSet/> elements and
find the "file" attributes to get the *pvtu file names. Then you can
parse those *pvtu XML files to get whatever information you want. One
such module is documented here:
https://docs.python.org/2/library/xml.etree.elementtree.html.

HTH,
Cory

On Wed, Nov 15, 2017 at 1:17 PM, Ke Gao <ke.gao.ut at gmail.com> wrote:
> Actually, what I want to do is using python script to read *pvd file first
> to get the name info of *pvtu files. Then use the *pvtu file name to read
> through all of them one by one to extract the info I want. I'm not sure if
> there is a better way to realize this.
>
> Many thanks.
>
> On Wed, Nov 15, 2017 at 11:05 AM, Cory Quammen <cory.quammen at kitware.com>
> wrote:
>>
>> The file names are embedded in the same XML element as the time step:
>>
>> <DataSet timestep="+1.98800000e+03"  part="001" file="Sout_1012.pvtu"/>
>>
>> But I'll be that's not how you want to access them.
>>
>> Next question: From where do you want to access the file names? A Python
>> script? In the UI?
>>
>> On Wed, Nov 15, 2017 at 12:35 PM, Ke Gao <ke.gao.ut at gmail.com> wrote:
>>>
>>> Hi,
>>>
>>> I mean how to get the file name info such as "Sout_1012.pvtu",
>>> "Sout_1013.pvtu". Currently I can only read the timestep info such as
>>> "+1.98800000e+03".
>>>
>>> Many thanks.
>>>
>>>
>>> <?xml version="1.0"?>
>>>   <VTKFile type="Collection" version="0.1" byte_order="LittleEndian">
>>>   <Collection>
>>>     <DataSet timestep="+1.98800000e+03"  part="001"
>>> file="Sout_1012.pvtu"/>
>>>     <DataSet timestep="+1.99000000e+03"  part="001"
>>> file="Sout_1013.pvtu"/>
>>>     <DataSet timestep="+1.99200000e+03"  part="001"
>>> file="Sout_1014.pvtu"/>
>>>
>>> On Wed, Nov 15, 2017 at 10:33 AM, Cory Quammen <cory.quammen at kitware.com>
>>> wrote:
>>>>
>>>> What do you mean by "file info"? File name? Size of the file? Data
>>>> arrays in the file?
>>>>
>>>> - Cory
>>>>
>>>> On Tue, Nov 14, 2017 at 4:45 PM, Ke Gao <ke.gao.ut at gmail.com> wrote:
>>>>>
>>>>> Does anyone know how to read the file info from *pvd file? I know how
>>>>> to get the time step values, just using the keyword of “TimestepValues”,
>>>>> however, I tried different ways, still haven’t figured out how to read the
>>>>> file info.
>>>>>
>>>>>
>>>>> Thanks
>>>>>
>>>>> <?xml version="1.0"?>
>>>>>   <VTKFile type="Collection" version="0.1" byte_order="LittleEndian">
>>>>>   <Collection>
>>>>>     <DataSet timestep="+1.98800000e+03"  part="001"
>>>>> file="Sout_1012.pvtu"/>
>>>>>     <DataSet timestep="+1.99000000e+03"  part="001"
>>>>> file="Sout_1013.pvtu"/>
>>>>>     <DataSet timestep="+1.99200000e+03"  part="001"
>>>>> file="Sout_1014.pvtu"/>
>>>>> --
>>>>>
>>>>> ..............................................................................................................................................
>>>>> Ke Gao
>>>>>
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>>>>
>>>>
>>>>
>>>> --
>>>> Cory Quammen
>>>> Staff R&D Engineer
>>>> Kitware, Inc.
>>>
>>>
>>>
>>>
>>> --
>>>
>>> ..............................................................................................................................................
>>> Ke Gao
>>
>>
>>
>>
>> --
>> Cory Quammen
>> Staff R&D Engineer
>> Kitware, Inc.
>
>
>
>
> --
> ..............................................................................................................................................
> Ke Gao



-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.