[Paraview] Sharing a library I wrote to generate ProgrammableFilters with property panel options

[Cory Quammen]

Very cool, Shuhao. Thanks for sharing this with the ParaView community!

Cory

On Wed, Mar 14, 2018 at 2:39 PM, Shuhao Wu <shuhao at shuhaowu.com> wrote:

> Hello all,
>
> I hope this is not too spammy/self promoting, but I wanted to share a
> small library that I created to wrap such that you create Python
> Programmable Filters with custom property panel options from a regular
> python file. The work is inspired by this blog post[1].
>
> The library based system allows you to write your programmable filter such
> that it will work outside of paraview so you can possibly mock the
> inputs/outputs and run unit tests on then, while also allowing easy export
> into a XML plugins to feed into Paraview for execution. This should allow
> one to create higher quality, reusable filters. The library is available
> at: https://github.com/shuhaowu/pvpyfilter. If there is enough interest
> in this, and once I get to test it more, I can release this onto PyPI for
> easier access.
>
> A short example of this in action (longer one available in the repository,
> complete with screenshots):
>
> class ViscosityType(Enum):
>   Kinematic = 1
>   Dynamic   = 2
>
> class MyFilter(ProgrammableFilter):
>   label = "My Filter"
>   input_data_type  = "vtkPolyData"
>
>   nu = Double("Viscousity", default=1.53e-5, slider=[0, 1e-4], help="...")
>   nu_type = IntegerEnum("Type", default=ViscosityType.Kinematic,
> enum=ViscosityType)
>
>   @staticmethod
>   def request_data(inputs, outputs, nu, nu_type):
>     print(nu)
>     print(nu_type)
>
> [1]: https://blog.kitware.com/easy-customization-of-the-paraview-
> python-programmable-filter-property-panel/ --  I cannot find the script
> download from that link and had to get it from somewhere else on the
> internet.
>
> Shuhao
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-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.
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