Dear Sergio,
is it possible that your surface has a very low density (in terms of surface
triangles)?
In this case you could try to subdivide the surface right after marching cubes:
vmtkmarchingcubes -ifile c:\\work\\batch\\ABD-Vascular-seg.mha -l 0.5 --pipe
vmtksurfacesubdivision -method loop --pipe vmtksurfacesmoothing -passband 0.1
-iterations 30 --pipe vmtksurfaceclipper --pipe vmtkcenterlines -seedselector
openprofiles -ofile c:\\work\\batch\\ABD-Vascular.vtp
Let me know if this helps, if it doesn't please send the surface obtained from
marching cubes (or a screenshot) and I'll take a look at it.
Best regards
Luca
On Apr 23, 2012, at 5:31 PM, Sergio Vera wrote:
> Hello
> I'm want to extract centerlines from an abdominal aorta and illiacs. The
> following pypes script
>
> vmtkmarchingcubes -ifile c:\\work\\batch\\ABD-Vascular-seg.mha -l 0.5 --pipe
> vmtksurfacesmoothing -passband 0.1 -iterations 30 --pipe vmtksurfaceclipper
> --pipe vmtkcenterlines -seedselector openprofiles -ofile
> c:\\work\\batch\\ABD-Vascular.vtp
>
> alsways returns:
>
> Warning: In
> C:\Users\vmtk\local\build\vmtk\vtkVmtk\ComputationalGeometry\vtkvmtkSteepestDescentLineTracer.cxx,
> line 204
> vtkvmtkSteepestDescentLineTracer (149B7938): Can't find a steepest descent
> edge. Target not reached.
>
> redardless of the start-end points that I try to generate.
>
> Probably I'm missing something but I've tried several combinations of
> parameters and filters to no avail.
> How can I generate a correct centerline?
>
>
> Thanks
>
>
> --
> Sergio Vera
>
> Alma IT Systems
> C/ Vilana, 4B, 4º 1ª
> 08022 Barcelona
> T. (+34) 932 380 592
> www.alma3d.com
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