Hi Francesco,
 you're right as to the fact that the centerlines code is made for 3D, not 2D.

A (hacky) workaround would be to replicate the 2D image in order to generate a 
volume and extract a 3D surface from it. Probably even resampling the 2D image
using vmtkimagereslice would work.

Is this a possibility?

Luca



On Apr 12, 2012, at 3:22 PM, Francesco Iannaccone wrote:

> Hi all
> 
> here is my problem. I have one 2D picture of a vessel. After some  
> binarization in 3d slicer to extract the label map i want to compute  
> the centerlines on it.
> I made some transformation to get a vtkpolkydata of triangles of the  
> segmented 2D vessel image but it does not seem to be a good input for  
> the vmtkcenterlines probably because it is a 2D open stl. Can someone  
> suggest if there is a way to use the already implemented functions in  
> my case or, if not, tell me what /how to modify them to be applied on  
> 2d cases? I got a bit lost on all the voronoi and the centerline stuff.
> 
> Regards
> 
> francesco
> 
> 
> 
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