[vtkusers] from cosmo to png without user interaction

[Ula Popov]

Sebastian,

thank you very much.
I used traces and it worked for me!


ula

On Thu, Mar 10, 2011 at 4:56 AM, Sebastien Jourdain <
sebastien.jourdain at kitware.com> wrote:

> Hi Ula,
>
> you can use ParaView and with the python scripting interface, you
> should be able to automated that process for all your files.
> Start paraview, start python trace, do your processing for one file,
> do the capture, then show trace.
> This will show the python code that was needed for the whole process.
> Then, you will just need to change the reader filename, and request a
> new image capture for each new file that you may set inside a for loop
> in python.
>
> Seb
>
> On Thu, Mar 10, 2011 at 12:25 AM, Ula Popov <ula.popov at gmail.com> wrote:
> > Hello all,
> >
> > I have 5000 cosmo files that I need to visualize and save each as a .png
> > file.
> >
> > If I had one file, I'd
> > 1. open it in paraview
> > 2. choose glyph filter
> > 3. choose
> >      vector : velocity
> >      glyph type: arrow
> >      color by: glyphVector
> > 4. press "reset" button
> > 5. adjust camera -> azimuth (XX)
> > 6. File->Save ScreenShot
> > 7. type "output_filename"
> >
> > I need to automate this process, but I don't know how.
> > I do know how to read cosmo file into unstructured grid,
> > how to create a window, but i don't know how to set
> > all these parameters and save an image.
> >
> >
> > int main ()
> > {
> >     vtkUnstructuredGrid *data;
> >     vtkSmartPointer<vtkCosmoReader> reader =
> > vtkSmartPointer<vtkCosmoReader>::New();
> >
> >     reader->SetFileName("input_filename.cosmo");
> >     reader->Update();
> >     data = reader->GetOutput(0);
> >
> >     vtkSmartPointer<vtkUnstructuredGridGeometryFilter> geometryFilter =
> > vtkSmartPointer<vtkUnstructuredGridGeometryFilter>::New();
> >     geometryFilter->SetInputConnection(data->GetOutputPort());
> >     geometryFilter->Update();
> >
> >     //Create a mapper and actor
> >     vtkSmartPointer<vtkDataSetMapper> mapper =
> > vtkSmartPointer<vtkDataSetMapper>::New();
> >     mapper->SetInputConnection(geometryFilter->GetOutputPort());
> >     vtkSmartPointer<vtkActor> actor =  vtkSmartPointer<vtkActor>::New();
> >     actor->SetMapper(mapper);
> >
> >     // a renderer and render window
> >    vtkRenderer *ren = vtkRenderer::New();
> >    vtkRenderWindow *renWin = vtkRenderWindow::New();
> >    renWin->AddRenderer(ren);
> >
> >    // an interactor
> >    vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
> >    iren->SetRenderWindow(renWin);
> >
> >    // add the actor to the scene
> >    ren->AddActor(actor);
> >    ren->SetBackground(1,1,1); // Background color white
> >
> >    renWin->Render();
> >
> >   // begin mouse interaction
> >    iren->Start();
> >
> >   ren1->Delete();
> >   renWin->Delete();
> >   iren->Delete();
> >   return EXIT_SUCCESS;
> > }
> >
> >
> > Any ideas, suggestions, code examples are highly appreciated,
> > ula
> >
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