[vtk-developers] vtkArrayCalculator / vtkFunctionParser

[Andrew Maclean]

Hi Berk,
   If it is not too much work I would think it could be a very useful
addition. It could interface nicely with any qt interfaces being developed
by users.

Regards
   Andrew



> See these:
>
> http://paraview.org/Wiki/ParaView/Users_Guide/Python_Calculator
> http://paraview.org/Wiki/ParaView/Users_Guide/Python_Programmable_Filter
>
> The classes used to implement these are:
>
> vtkPythonCalculator and vtkPythonProgrammableFilter
>
> in the ParaView repository.
>
> The Python modules used are:
>
> dataset_adapter.py
> algorithms.py
>
> in the ParaView repository.
>
> If there is interest within the VTK community in this functionality,
> moving these to VTK is relatively easy (but not trivial).
>
> -berk
>
> On Mon, Jun 20, 2011 at 10:28 AM, Dominik Szczerba <dominik at itis.ethz.ch>
> wrote:
> > That sounds very interesting! I assume you refer to the git version.
> > Which files are these exactly?
> >
> > Many thanks,
> > Dominik
> >
> > On Mon, Jun 20, 2011 at 3:07 PM, Berk Geveci <berk.geveci at kitware.com>
> wrote:
> >> Hi Dominik,
> >>
> >> For ParaView, we have been developing a Python (NumPy + VTK) based
> >> calculator that is independent of vtkArrayCalculator. The main
> >> advantages are that it is more efficient and easily extensible using
> >> Python. Does this address your needs?
> >>
> >> -berk
> >>
> >> On Fri, Jun 17, 2011 at 4:06 PM, Dominik Szczerba <dominik at itis.ethz.ch>
> wrote:
> >>> We are developing for our internal needs a substitute of the
> >>> vtkFunctionParser using QScript and python at option. I am wondering:
> >>>
> >>> 1) Would this be something attractive enough to contribute to VTK.
> >>> 2) How would I best integrate it into the existing vtkArrayCalculator.
> >>> Rewrite the latter, allowing multiple parsers (current, QScript,
> >>> python) or implement 3 of them for the 3 parsers.
> >>>
> >>> Thanks for any thoughts.
> >>>
> >>> Regards,
> >>> Dominik
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-- 
___________________________________________
Andrew J. P. Maclean
Australian Centre for Field Robotics (ACFR)
The Rose Street Building J04
The University of Sydney  2006  NSW
AUSTRALIA
Ph: +61 2 9351 3283
Fax: +61 2 9351 7474
URL: http://www.acfr.usyd.edu.au/
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