[Paraview] ParaView Scripting

Fri Mar 2 06:21:03 EST 2012

Hi Stefano,

the mapping between the c++ and the proxies in python are not straight
forward, basically there is some XML file that explicitly define that
property/method mapping but if you have the code you could look at the
file ParaView/src/Utilities/VTKPythonWrapping/paraview/simple.py,
then the rest is Proxy specific.

One more thing, I still don't understand what you try to do in
python... D you want to switch from one data array to another ? Or ?

Thanks,

Seb

On Fri, Mar 2, 2012 at 3:44 AM, Stefano Charissis
<S.Charissis at victorchang.edu.au> wrote:
> Hi Menno,
>
> Thanks for that info!
>
> Up to now I had looking at the C function headers and trying to guess the Python calls!
>
> Stefano
> ________________________________________
> From: Deij, Menno [M.Deij at marin.nl]
> Sent: Friday, 2 March 2012 6:14 PM
> To: Stefano Charissis
> Cc: paraview at paraview.org
> Subject: RE: [Paraview] ParaView Scripting
>
> Hi Stefano,
>
> In addition to the good suggestions by Sebastien, you can get more information for each Python object using the following approaches:
>
> Let's say your object is called 'obj'
>
> 1. Get help:
>
> help(obj)
>
> 2. You can list all its attributes (properties & functions) using:
>
> dir(obj)
>
> or, better readable
>
> for element in dir(obj):
>    print element
>
> 3. Then, if your object is a SourceProxy (maybe even if it's a Proxy, I'm not sure), you can list its properties like so:
>
> for p in obj.ListProperties():
>    print p, obj.GetProperty(p)
>
> 4. Lastly, in the help on an object you can sometimes see that not all documentation is provided and you are referred to a vtk* object. Download the source code from ParaView and view the type header file to see the full information.
>
> Good luck,
>
> Menno
>
>
>
>
> dr. ir. Menno A. Deij
> Software Engineer
> Maritime Simulation Group
> E mailto:M.Deij at marin.nl
> T +31 317 49 35 06
>
> MARIN
> 2, Haagsteeg, P.O. Box 28, 6700 AA Wageningen, The Netherlands
> T +31 317 49 39 11, F , I www.marin.nl
>
> -----Original Message-----
> From: paraview-bounces at paraview.org [mailto:paraview-bounces at paraview.org] On Behalf Of Stefano Charissis
> Sent: Friday, March 02, 2012 3:27 AM
> To: Sebastien Jourdain
> Cc: paraview at paraview.org
> Subject: Re: [Paraview] ParaView Scripting
>
> Hi Sebastien,
>
> Thank you for your recommendations.
> I have already been through all those resources and I was not able to extract very much useful information from them. The the 'trace' suggestion seems promising. I can't quite get it to do what I want, but I'm sure it'll prove useful in the future.
>
> This is what using the trace gave me:
> --------------------------------------------------------------------------------------------------------
> try: paraview.simple
> except: from paraview.simple import *
> paraview.simple._DisableFirstRenderCameraReset()
>
> a3dResults_vtu = XMLUnstructuredGridReader( FileName=['/home/stefano/workspace/TestSimulations/3dpropagation/output/vtk_output/3dResults.vtu'] )
> a3dResults_vtu.PointArrayStatus = ['V_000000', 'V_000001', 'V_000002', 'V_000003', 'V_000004', 'V_000005']
>
> # From here, I don't even know how to do what I want to do manually
> # At this point if I am in Paraview and I hit 'Animate' then it will animate V_00000 only. But, in fact, V_000000 is timestep 0 of V, V_000001 is timestep 1 of V, etc...
> # So I essentially want it to either interpret the arrays as such or output a series of vtu files which I can then hopefully open 'together' (output*.vtu) and animate that...?
> --------------------------------------------------------------------------------------------------------
>
>
> Also. I would still like to know where I can look up the functionality of, for example, paraview.simple, for the future.
>
> Stefano
>
> ________________________________________
> From: Sebastien Jourdain [sebastien.jourdain at kitware.com]
> Sent: Friday, 2 March 2012 12:03 PM
> To: Stefano Charissis
> Cc: paraview at paraview.org
> Subject: Re: [Paraview] ParaView Scripting
>
> Hi Stefano,
>
> you can give a look at http://paraview.org/Wiki/ParaView and more precisely on:
>
> http://paraview.org/Wiki/ParaView#Python_Scripting
> http://paraview.org/Wiki/ParaView/Python_Scripting
> http://paraview.org/Wiki/Python_GUI_Tools
>
> Hope this could give you more insight... The trace can help you
> convert UI interaction into script which can be manually tweaked for
> your custom purpose.
>
> Seb
>
> On Thu, Mar 1, 2012 at 7:09 PM, Stefano Charissis
> <S.Charissis at victorchang.edu.au> wrote:
>> Hi all,
>>
>> My group has just started using ParaView in an attempt to visualise the output of an open-source application we are using. The app outputs a single .vtu file which has multiple arrays, each representing the data at every time step of the simulation. I cannot animate this as it does not have any time information. I could not find the solution online and nor could I find any documentation for the python scripting. I tried that figuring that if I could seperate the vtu into multiple (ie. 0.vtu, 1.vtu, etc) then I could automatically produce animations.
>> Does anyone know how this can be achieved?
>>
>> And, more generally, how can one go about learning ParaView scripting? I don't mind what language I have to use, I just want a comprehensive guide and documentation. I tried buying the book, but it is out of stock.
>>
>> Thanks,
>> Stefano
>>
>> ______________________________________________________________________
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> _______________________________________________
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>
> 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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>
> Scanned by Messagelabs ***
>
> ______________________________________________________________________
> The Victor Chang Cardiac Research Institute's Email is scanned by the MessageLabs Email Security System.
> _______________________________________________
> 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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