Re: [vmtk-users] centerline extraction problem

[Xiaoli Z. <zha...@gm...>]

Some more information about the problem: vmtkcenterlines sometimes throw
out following warning during the process.

Generic Warning: In /projects/mice/xzhang/VTK/src/Common/vtkMath.cxx, Line
544
Unable to factor linear system

Warning: In /projects/mice/xzhang/VTK/src/VTK/Graphics/vtkDelaunay3D.cxx,
Line 487
vtkDelaunay3D (0x59af7e0): 1 degenerate triangles encountered, mesh quality
suspect

Appreciate if anyone can suggest some solutions. Thanks.

On Tue, Aug 6, 2013 at 9:23 PM, Xiaoli Zhang <zha...@gm...> wrote:

> I am new to vmtk and I am trying to extract centerline from CT image of
> the aorta. I prepared the surface in Amira and save as stl (ASCII) format.
> Then I ran vmtkcenterlines script and place a source point at inlet and a
> target point at outlet. vmtk then show "computing centerline" and staying
> for a very long time (>12 hours). The surface I am working on is a small
> file (stl size <1MB).
>
> Anyone can help please? I can send the screenshot of the surface and stl
> file if needed. Thanks.
>
> Xiaoli
>