[vtkusers] Endpoints of streamlines

[Martin Baumann]

Hi,

you must get the last point of the output of the stream tracer.
Here an example:

    vtkStreamTracer* trace = vtkStreamTracer::New();
    trace->SetInput(_grid);
    // ...
    trace->Update();

    double* stopPosition;
    long numPoints = trace->GetOutput()->GetNumberOfPoints();
    stopPosition      = trace->GetOutput()->GetPoint(numPoints-1);

Hope this helps!

Regards, M.B.


Jan Karel Aaaaaa schrieb:

>Hello everybody,
>
>I would like to get endpoints and only the endpoints of generated streamlines. I am making an animation of blood flow and I would like to use these endpoints as seeding points for the streamlines in the next frame. However I am new to VTK and I don't have any idea on how to do that... 
>
>Briefly, what I need is a something like vtkStreamline.GetEndPoints().
>
>Can anyone help me with this, please?
>
>Thanks a lot
>Tomas
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