[vtkusers] vtkStreamPoints!!!

[Jérôme]

Hi,
According to the online documentation, it seems that vtkStreamPoints is
intended to be used as vtkStreamTracer, not as a follower.
You may want to get rid of vtkStreamTracer (in your example) and directly
write:
   points->SetInput( grid );

HTH
Jerome

2011/5/11 Subhodeep Ray <raysubho510 at gmail.com>

> Hi,
>
> A few days back I started using vtkStreamPoints so as to generate points
> along a streamline to obtain a visual effect of moving particles, but
> somehow the functions of this class don't seem to be working properly.
>
> Following is a small snippet of the code that I am working on...
>
> vtkUnstructuredGrid *grid;
> vtkStreamTracer *tracer;
> vtkStreamPoints *points;
> vtkSphereSource *sphere;
> vtkGlyph3D *glyph;
> vtkPolyDataMapper *mapper;
>
> tracer->SetInput(grid);
> tracer->SetStartPosition(x,y,z);
> tracer->SetIntegratorTypeToRungeKutta4();
> tracer->SetMaxPropagation(int);
> tracer->SetInitialIntegrationStep(int);
>
> points->SetInputConnection(tracer->GetOutputPort());
> points->SetStartPosition(x,y,z);
> points->SetMaxPropagationTime(100);
> points->SetTimeIncrement(150);
> points->SetIntegrationDirectionToForward();
>
> sphere->SetRadius(5.0);
>
> glyph->SetInputConnection(points->GetOutputPort());
> glyph->SetSource(sphere->GetOutput());
> glyph->SetScaleFactor(1.0);
> glyph->SetScaleModeToScaleByVector();
>
> mapper->SetInputConnection(glyph->GetOutputPort());
>
> please ignore any syntax errors.
>
> do tell me if there's anything wrong with the algorithm or order of
> commands, or the logic involved, because that's where I believe the problem
> may lie. but obviously if there's anything else wrong with the above code
> snippet, please do let me know
>
> Thanx,
> Regards,
>
> --
> Subhodeep Ray
> Research Engineer (Software Development)
> Fluidyn Software & Consultancy (P) Ltd.
> Bangalore.
> Mobile: +91-9590669291
> e-mail: raysubho510 at gmail.com
>
>
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