[vtkusers] vtkStreamTracer->SetInput( vtkPlaneSource->GetOutput() ) -->error

[Berk Geveci]

Actually, since vtkPolyData is a sub-class of vtkDataSet,
setting the input without the cast should work. I think the
problem lies in the fact that the compiler does not recognize
that vtkPolyData is a sub-class of vtkDataSet. Did you
include vtkPolyData.h ?

-Berk

On Thu, 2003-10-30 at 06:35, joseph mccoy wrote:
> Hello All,
>  
> maybe this question is very stupid and also had been answered before a
> hundret times, but i don't seem to be able to find an answer! Maybe
> someone could help me. Here is my problem:
>  
> with vtk4.0 i feeded a vtkStreamer with a vtkPlaneSource via
> ->SetSource(plane->GetOutput() ). ´that worked fine. now i wanted to
> port the concept to vtk4.23 using vtkStreamTracer and i learned that
> StreamTracer needs a dataSet as input, but planeSource produces
> polyData. 
>  
> Does anybody know how to convert a polyData into a DataSet? or how i
> could use a plane as Input for the StreamTracer?
>  
> Thanks
>  
> Joseph
-- 
Berk Geveci <berklist at nycap.rr.com>