[vtkusers] stream tracer / stream lines

[Sebastian Gatzka]

Nope, it's not working with my data.

I really need this to work: *Vector Data is on structured grid cell 
centers!!!*

vtkStructuredGrid *sGrid = vtkStructuredGrid::New();

(...)

vtkCellCenters *gridCellCenters = vtkCellCenters::New();
gridCellCenters->SetInput(sGrid);

Vector Data is on the structured grid cell centers:

sGrid->GetCellData()->SetVectors(v);

(...)

vtkStreamLine *streamer = vtkStreamLine::New();
_/streamer->SetInputConnection(gridCellCenters->GetOutputPort());/_
streamer->SetStartPosition(1,1,1);
streamer->SetMaximumPropagationTime(200);
streamer->SetIntegrationStepLength(.2);
streamer->SetStepLength(.001);
streamer->SetNumberOfThreads(1);
streamer->SetIntegrationDirectionToForward();
streamer->VorticityOn();

vtkPolyDataMapper *streamMapper = vtkPolyDataMapper::New();
streamMapper->SetInputConnection(streamer->GetOutputPort());

vtkActor *streamActor = vtkActor::New();
streamActor->SetMapper(streamMapper);
streamActor->VisibilityOn();

(...)

ren1->AddActor(streamActor);

Nothing is displayed.

*How can I manage to input my data to the vtkStreamLine?!?*

Am 25.03.2010 13:51, schrieb Favre Jean:
> I believe this example will now work if you set your VTK_DATA_ROOT appropriately.
>
> -----------------
> Jean M. Favre
> Scientific Computing Research
> Swiss National Supercomputing Center
> CH-6828 Manno
> Switzerland
>    
>
>
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