[vtkusers] pointdata and glyph

[Eric E. Monson]

Hey Claude,

Your vtkPointData should be part of some other element, like  
vtkPolyData (that you have read from a file, or created manually, or  
generated from a source). Create your polydata, then create your three- 
component vtkFloatArray that holds your vector coordinates, then do  
something like polydata->GetPointData()->SetVectors(floatarrayname).

As you said, the arrow source will be your source: glyph- 
 >SetSourceConnection(arrowsource->GetOutputPort())

If your polydata is going through some other filter before the glyph  
filter, then you use glyph->SetInputConnection(polyfilter- 
 >GetOutputPort()), but if it's going in directly, you should be able  
to use glyph->SetInput(polydata).

-Eric



On Aug 10, 2009, at 5:16 AM, ClaudeG wrote:

>
> hi ,
> i have created pointdata with the coordonnates of vectors and know i  
> want to
> use glyph to represente these vectors. As source i use vtkarrow but  
> how can
> i get my pointdata into the glyph?
>
> thanks for any help
>
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