Re: [Paraview] Coprocessing with many time steps

[Samuel Key]

Hermano,

Here is an example *pvd file.

Samuel Key
FMA Development
1005 39th Ave NE
Great Falls, Montana,  USA

On 9/28/2017 1:21 PM, Andy Bauer wrote:

Hi,

The XML readers and writers don't properly support time so currently 
the best way would be to create a pvd file which would contain the 
time and time step information. I don't know of anything in VTK or 
ParaView that writes out pvd files (I only see a vtkPVDReader in 
ParaView) but the format is meant to be simple. I would suggest doing 
it directly in the Catalyst Python script through some Python library 
as the best workaround for now.




On Thu, Sep 28, 2017 at 3:08 PM, Hermano Lustosa > wrote:


Ohh I see...

Just another quick question. Currently, I am creating a series of
VTU and VTI files whose names follow the pattern mysimulation-t%d.
With %d being replaced by an integer index identifying the time
step. I am about to code a simple PVD writer to consolidate the
output and also to assign the real time step value in seconds
instead of maintaining this integer index.

It doesn't seem to be very hard to create this PVD file by hand,
but I was just wondering if there is something in the VTK library
that could automatically create these files for me. I still could
not understand how I can assign the real time step in seconds to a
file, don't know if its even possible with VT? files. If this is
possible, some directions that could help me implement that would
be very nice!

Thanks once again!





On Thu, Sep 28, 2017 at 3:50 PM, Andy Bauer
mailto:andy.ba...@kitware.com>> wrote:

Hi,

The TemporalStatistics filter (or any other filter that
iterates through time steps) doesn't currently work with
Catalyst. We hope to change this in the future but because of
the way that the ParaView pipeline works it makes it a
non-trivial change.

Andy

On Thu, Sep 28, 2017 at 2:40 PM, Hermano Lustosa
mailto:hllust...@gmail.com>> wrote:

I have doubt about using paraview catalyst from my
simulation code. Suppose I created a simple Paraview
pipeline containing the TemporalStatistics filter only.

Initially, it is not clear for which "dummy" source is
adequate for the script. I used a simple programmable
source or even a unstructured cell types source to create
the python script. Then, I call the script from catalyst
in my code like this:

for each time step
    update grid;
    create data description;
    call coprocessing method;

The problem is that I expect the TemporalStatistics filter
to create a single file containing the statistics for all
the time steps. However, this approach creates a file for
every time step. What I should do in the catalyst (or
during the script creation) to have a single output for
this filter.

Thanks in advance.





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Re: [Paraview] Coprocessing with many time steps

[Andy Bauer]

Hi,

The XML readers and writers don't properly support time so currently the
best way would be to create a pvd file which would contain the time and
time step information. I don't know of anything in VTK or ParaView that
writes out pvd files (I only see a vtkPVDReader in ParaView) but the format
is meant to be simple. I would suggest doing it directly in the Catalyst
Python script through some Python library as the best workaround for now.



On Thu, Sep 28, 2017 at 3:08 PM, Hermano Lustosa 
wrote:

> Ohh I see...
>
> Just another quick question. Currently, I am creating a series of VTU and
> VTI files whose names follow the pattern mysimulation-t%d. With %d being
> replaced by an integer index identifying the time step. I am about to code
> a simple PVD writer to consolidate the output and also to assign the real
> time step value in seconds instead of maintaining this integer index.
>
> It doesn't seem to be very hard to create this PVD file by hand, but I was
> just wondering if there is something in the VTK library that could
> automatically create these files for me. I still could not understand how I
> can assign the real time step in seconds to a file, don't know if its even
> possible with VT? files. If this is possible, some directions that could
> help me implement that would be very nice!
>
> Thanks once again!
>
>
>
>
>
> On Thu, Sep 28, 2017 at 3:50 PM, Andy Bauer 
> wrote:
>
>> Hi,
>>
>> The TemporalStatistics filter (or any other filter that iterates through
>> time steps) doesn't currently work with Catalyst. We hope to change this in
>> the future but because of the way that the ParaView pipeline works it makes
>> it a non-trivial change.
>>
>> Andy
>>
>> On Thu, Sep 28, 2017 at 2:40 PM, Hermano Lustosa 
>> wrote:
>>
>>> I have doubt about using paraview catalyst from my simulation code.
>>> Suppose I created a simple Paraview pipeline containing the
>>> TemporalStatistics filter only.
>>>
>>> Initially, it is not clear for which "dummy" source is adequate for the
>>> script. I used a simple programmable source or even a unstructured cell
>>> types source to create the python script. Then, I call the script from
>>> catalyst in my code like this:
>>>
>>> for each time step
>>> update grid;
>>> create data description;
>>> call coprocessing method;
>>>
>>> The problem is that I expect the TemporalStatistics filter to create a
>>> single file containing the statistics for all the time steps. However, this
>>> approach creates a file for every time step. What I should do in the
>>> catalyst (or during the script creation) to have a single output for this
>>> filter.
>>>
>>> Thanks in advance.
>>>
>>>
>>>
>>>
>>>
>>> ___
>>> 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
>>>
>>> Search the list archives at: http://markmail.org/search/?q=ParaView
>>>
>>> Follow this link to subscribe/unsubscribe:
>>> http://public.kitware.com/mailman/listinfo/paraview
>>>
>>>
>>
>
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Re: [Paraview] Coprocessing with many time steps

[Hermano Lustosa]

Ohh I see...

Just another quick question. Currently, I am creating a series of VTU and
VTI files whose names follow the pattern mysimulation-t%d. With %d being
replaced by an integer index identifying the time step. I am about to code
a simple PVD writer to consolidate the output and also to assign the real
time step value in seconds instead of maintaining this integer index.

It doesn't seem to be very hard to create this PVD file by hand, but I was
just wondering if there is something in the VTK library that could
automatically create these files for me. I still could not understand how I
can assign the real time step in seconds to a file, don't know if its even
possible with VT? files. If this is possible, some directions that could
help me implement that would be very nice!

Thanks once again!





On Thu, Sep 28, 2017 at 3:50 PM, Andy Bauer  wrote:

> Hi,
>
> The TemporalStatistics filter (or any other filter that iterates through
> time steps) doesn't currently work with Catalyst. We hope to change this in
> the future but because of the way that the ParaView pipeline works it makes
> it a non-trivial change.
>
> Andy
>
> On Thu, Sep 28, 2017 at 2:40 PM, Hermano Lustosa 
> wrote:
>
>> I have doubt about using paraview catalyst from my simulation code.
>> Suppose I created a simple Paraview pipeline containing the
>> TemporalStatistics filter only.
>>
>> Initially, it is not clear for which "dummy" source is adequate for the
>> script. I used a simple programmable source or even a unstructured cell
>> types source to create the python script. Then, I call the script from
>> catalyst in my code like this:
>>
>> for each time step
>> update grid;
>> create data description;
>> call coprocessing method;
>>
>> The problem is that I expect the TemporalStatistics filter to create a
>> single file containing the statistics for all the time steps. However, this
>> approach creates a file for every time step. What I should do in the
>> catalyst (or during the script creation) to have a single output for this
>> filter.
>>
>> Thanks in advance.
>>
>>
>>
>>
>>
>> ___
>> 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
>>
>> Search the list archives at: http://markmail.org/search/?q=ParaView
>>
>> Follow this link to subscribe/unsubscribe:
>> http://public.kitware.com/mailman/listinfo/paraview
>>
>>
>
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Re: [Paraview] Coprocessing with many time steps

[Andy Bauer]

Hi,

The TemporalStatistics filter (or any other filter that iterates through
time steps) doesn't currently work with Catalyst. We hope to change this in
the future but because of the way that the ParaView pipeline works it makes
it a non-trivial change.

Andy

On Thu, Sep 28, 2017 at 2:40 PM, Hermano Lustosa 
wrote:

> I have doubt about using paraview catalyst from my simulation code.
> Suppose I created a simple Paraview pipeline containing the
> TemporalStatistics filter only.
>
> Initially, it is not clear for which "dummy" source is adequate for the
> script. I used a simple programmable source or even a unstructured cell
> types source to create the python script. Then, I call the script from
> catalyst in my code like this:
>
> for each time step
> update grid;
> create data description;
> call coprocessing method;
>
> The problem is that I expect the TemporalStatistics filter to create a
> single file containing the statistics for all the time steps. However, this
> approach creates a file for every time step. What I should do in the
> catalyst (or during the script creation) to have a single output for this
> filter.
>
> Thanks in advance.
>
>
>
>
>
> ___
> 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
>
> Search the list archives at: http://markmail.org/search/?q=ParaView
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/paraview
>
>
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[Paraview] Coprocessing with many time steps

[Hermano Lustosa]

I have doubt about using paraview catalyst from my simulation code. Suppose
I created a simple Paraview pipeline containing the TemporalStatistics
filter only.

Initially, it is not clear for which "dummy" source is adequate for the
script. I used a simple programmable source or even a unstructured cell
types source to create the python script. Then, I call the script from
catalyst in my code like this:

for each time step
update grid;
create data description;
call coprocessing method;

The problem is that I expect the TemporalStatistics filter to create a
single file containing the statistics for all the time steps. However, this
approach creates a file for every time step. What I should do in the
catalyst (or during the script creation) to have a single output for this
filter.

Thanks in advance.
___
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