[Paraview] Paraview Python scripting

Thu Nov 3 21:06:28 EDT 2011

Yes, you can define your own key and mouse button handlers in python.
Check out some example code here:

http://vtk.org/gitweb?p=VTK.git;a=blob;f=Examples/GUI/Python/CustomInteraction.py

Pat

On Tue, Nov 1, 2011 at 5:25 PM, Cheng Zhang
<chengzha at engineering.uiowa.edu>wrote:

> Hi Pat,
>
> That example you showed is awesome. Can I also add keyboard interaction
> with the render window?
>
> On Tue, Nov 1, 2011 at 3:52 PM, pat marion <pat.marion at kitware.com> wrote:
>
>> Actually, if you follow the steps from this email, you can interact with
>> the render window from pvpython:
>>
>>
>>   http://markmail.org/message/sjt6pbkyc56l2wgl
>>
>>
>> Pat
>>
>> On Tue, Nov 1, 2011 at 10:24 AM, Utkarsh Ayachit <
>> utkarsh.ayachit at kitware.com> wrote:
>>
>>> pvpython cannot be used for interactive viz (generally), it mostly
>>> designed for batch. So it executes the script and then quits. Try adding a
>>>
>>> raw_input()
>>>
>>> at the end and the script will pause for input before exiting, giving
>>> you an opportunity to look at the rendered result. Generally you'd edit the
>>> script to add WriteImage() or somethign similar to generate screenshots or
>>> save processed data out.
>>>
>>> If you want to use it in an interactive fashion, you should stick with
>>> Python Shell in the GUI.
>>>
>>> Utkarsh
>>>
>>>
>>>
>>> On Tue, Nov 1, 2011 at 10:13 AM, David Dupuis <
>>> david.dupuis at cadensimaging.com> wrote:
>>>
>>>> Sta.py is a Python state file I have created using “Save state” in the
>>>> GUI. Yes, it needs to open the GUI and load the whole pipeline saved in the
>>>> Python State file.
>>>>
>>>>
>>>>
>>>> *De :* Adriano Gagliardi [mailto:agagliardi at ara.co.uk]
>>>> *Envoyé :* 1 novembre 2011 10:07
>>>> *À :* 'David Dupuis'; 'Utkarsh Ayachit'
>>>> *Cc :* paraview at paraview.org
>>>> *Objet :* RE: [Paraview] Paraview Python scripting
>>>>
>>>>
>>>>
>>>> What does sta.py do that it needs to open the GUI? Do you mean an X11
>>>> window?
>>>>
>>>>
>>>>
>>>> ===================================
>>>>
>>>> Adriano Gagliardi MEng PhD
>>>> Business Sector Leader
>>>> Computational Aerodynamics
>>>> Aircraft Research Association Ltd.
>>>> Manton Lane
>>>> Bedford
>>>>
>>>> Tel: 01234 32 4644
>>>> E-mail: agagliardi at ara.co.uk
>>>> Url: www.ara.co.uk
>>>>
>>>>
>>>>
>>>>
>>>> ------------------------------
>>>>
>>>> *From:* paraview-bounces at paraview.org [mailto:
>>>> paraview-bounces at paraview.org] *On Behalf Of *David Dupuis
>>>> *Sent:* 01 November 2011 14:00
>>>> *To:* Utkarsh Ayachit
>>>> *Cc:* paraview at paraview.org
>>>> *Subject:* Re: [Paraview] Paraview Python scripting
>>>>
>>>> Hello Utkarsh,
>>>>
>>>>
>>>>
>>>> The Python Shell works fine.
>>>>
>>>>
>>>>
>>>> On the other hand, if you mean using  pvpython this way:
>>>>
>>>>
>>>>
>>>> >> /home/david/ParaView-3.12.0-RC2-Linux-x86_64/bin/pvpython ./sta.py
>>>>
>>>>
>>>>
>>>> It doesn’t work... The GUI will   flash (open partially and shutdown
>>>> quickly) and we cannot see anything...
>>>>
>>>>
>>>>
>>>> Thanks again!
>>>>
>>>> David
>>>>
>>>>
>>>>
>>>> *De :* Utkarsh Ayachit [mailto:utkarsh.ayachit at kitware.com]
>>>> *Envoyé :* 1 novembre 2011 09:35
>>>> *À :* David Dupuis
>>>> *Cc :* paraview at paraview.org
>>>> *Objet :* Re: [Paraview] Paraview Python scripting
>>>>
>>>>
>>>>
>>>> Have you tried using the pvpython executable? It's sets up the
>>>> environment correctly for you. Alternatively, from the GUI, you can open
>>>> the Python Shell and and then use the "Load Script" button to load the
>>>> script.
>>>>
>>>>
>>>>
>>>> Utkarsh
>>>>
>>>> On Tue, Nov 1, 2011 at 9:28 AM, David Dupuis <
>>>> david.dupuis at cadensimaging.com> wrote:
>>>>
>>>> Hello,
>>>>
>>>>
>>>>
>>>> I’m manipulating different dataset and for each of them I have a
>>>> different setup (pipeline). I saved the state as a python file and plan to
>>>> re-use the python state file to re-open the whole pipeline for each
>>>> dataset. It seems that only *.psvm files can be loaded via   File -> Load
>>>> state in Paraview. Is there a way to load a python state file?
>>>>
>>>>
>>>>
>>>> Here is what I tried to do so, but didn’t succeeded.
>>>>
>>>>
>>>>
>>>> 1- I followed the procedure for Paraview/Python scripting, and added
>>>> PYTHONPATH in .bashrc:
>>>>
>>>> export
>>>> PYTHONPATH="/home/david/ParaView-3.12.0-RC2-Linux-x86_64/lib/paraview-3.12/site-packages/:/home/david/ParaView-3.12.0-RC2-Linux-x86_64/bin"
>>>>
>>>>
>>>>
>>>> * The only thing I can’t do is adding the path to
>>>> ="/home/david/ParaView-3.12.0-RC2-Linux-x86_64/Utilities/VTKPythonWrapping/site-packages
>>>> since I don’t have any Utilities folder in my Paraview directory. I believe
>>>> this is required, but don’t know what to install and where to get it to
>>>> have it...
>>>>
>>>>
>>>>
>>>> 2- I tried to load the python state file via python with the setup
>>>> described at step 1, but got the following error:
>>>>
>>>>
>>>>
>>>> >> python ./sta.py
>>>>
>>>> Traceback (most recent call last):
>>>>
>>>>   File "/home/david/CADv2/Patients/P1/Prone/sta.py", line 2, in <module>
>>>>
>>>>     except: from paraview.simple import *
>>>>
>>>>   File
>>>> "/home/david/ParaView-3.12.0-RC2-Linux-x86_64/lib/paraview-3.12/site-packages/paraview/simple.py",
>>>> line 39, in <module>
>>>>
>>>>     import servermanager
>>>>
>>>>   File
>>>> "/home/david/ParaView-3.12.0-RC2-Linux-x86_64/lib/paraview-3.12/site-packages/paraview/servermanager.py",
>>>> line 43, in <module>
>>>>
>>>>     import paraview, re, os, os.path, new, sys, vtk
>>>>
>>>>   File
>>>> "/home/david/ParaView-3.12.0-RC2-Linux-x86_64/lib/paraview-3.12/site-packages/paraview/vtk/__init__.py",
>>>> line 1, in <module>
>>>>
>>>>     from vtkCommonPython import *
>>>>
>>>> ImportError: No module named vtkCommonPython
>>>>
>>>>
>>>>
>>>> I have taken a look and there is no vtkCommonPython module on my
>>>> machine. Is it part of the VTKPythonWrapping in Utilities?
>>>>
>>>>
>>>>
>>>> Thanks for helping me with this one.
>>>>
>>>> David
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> [image: L_CadensImaging+rendering_C_gif]
>>>>
>>>>
>>>>
>>>> DAVID DUPUIS
>>>>
>>>> Chef de produit | Product manager
>>>>
>>>>
>>>>
>>>> 116 principale, suite 200
>>>>
>>>> Granby (Qubec), J2G 2V2
>>>>
>>>> CANADA
>>>>
>>>>
>>>>
>>>> T: 450.956.3456 I Ext: 5114
>>>>
>>>> F: 450.991.3456
>>>>
>>>> david.dupuis at cadensimaging.com
>>>>
>>>>
>>>>
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>
>
> --
> Cheng Zhang
>
> PhD Candidate
> The Department of Electrical and Computer Engineering
> The University of Iowa, USA
>
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