[vtkusers] VTK Python Wrapper - Exporting Surface Plot

[Cory Quammen]

Conversation moved to
https://stackoverflow.com/questions/46162129/vtk-python-wrapper-exporting-surface-plot

On Tue, Sep 12, 2017 at 11:56 AM, Alberti, Anthony Lewis
<albertia at oregonstate.edu> wrote:
> Cory,
>
> Thanks for your response. The data I am trying to visualize is from a 2D
> time dependent simulation so there is a good amount of data. I am using
> finite elements but the specific method in which I am using doesn't have a
> 2D mesh in the traditional sense - so typical visualization methods for
> finite elements are kind of moot.
>
> I was hoping that I would be able to directly output the data into some form
> of vtk object that I could then use to visualize in a surface plot in
> Paraview/Visit. That way I could adjust camera angles, color schemes, etc
> and make everything into a movie to show the time dependent behavior. The
> reason I was hoping to avoid to have to process raw data (e.g. through csv
> files) is that the simulation simply outputs a lot of data (on the order of
> 10s of gigabytes) and post processing it directly in Paraview could be
> expensive.
>
> What do you think?
>
> -- Tony
>
> On Tue, Sep 12, 2017 at 7:18 AM, Cory Quammen <cory.quammen at kitware.com>
> wrote:
>>
>> Hi Anthony,
>>
>> To my knowledge, exporting plots is not supported, especially
>> exporting to an OBJ file, which is a geometry format.
>>
>> What do you hope to achieve by importing into ParaView/VisIt? Could
>> you do your visualization in those tools to begin with?
>>
>> - Cory
>>
>> On Mon, Sep 11, 2017 at 1:59 PM, Alberti, Anthony Lewis
>> <albertia at oregonstate.edu> wrote:
>> > Hello all,
>> >
>> > I'm using VTK 8.0.1 and python 3.5 and am brand new to VTK. I am trying
>> > to
>> > export a surface plot using vtkPlotSurface.
>> >
>> > By referencing VTK-8.0.1/Charts/Core/Testing/Cxx/TestSurfacePlot.cxx I
>> > have
>> > successfully created a surface plot and have been able to render it in
>> > python (even though it doesn't really look like a surface plot) - see
>> > attached script.
>> >
>> > In order to better visualize what I've made, I wanted to try and export
>> > it
>> > and then visualize using Paraview/Visit. However, I'm struggling to find
>> > any
>> > concrete examples where this type of vtk object is exported...
>> >
>> > I have tried running the following:
>> > out = vtk.vtkOBJExporter()
>> > out.SetFilePrefix("test")
>> > out.SetInput(chart)
>> > out.Write()
>> >
>> > But end up with the following type error:
>> > TypeError: SetInput argument 1: method requires a vtkRenderWindow, a
>> > vtkContextView was provided.
>> >
>> > Can anyone provide assistance? Thanks in advance.
>> > -- Tony
>> >
>> >
>> >
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>>
>>
>> --
>> Cory Quammen
>> Staff R&D Engineer
>> Kitware, Inc.
>
>



-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.