Dear Luca,

Is it possible that vmtkcenterlines has problems with surfaces originating from 
discrete marching cubes? The surface I had problems with was generated from a 
manual segmentation and therefore had no smoothing from normals. I regenerated 
a 
similar surface from a tomogram with grey-levels so normals could be calculated 
for smoothing and this surface now works.

Many thanks for Your help
Roman

On 15/02/13 15:09, Luca Antiga wrote:
> Hi Roman,
> can you please send me the incriminated surface?
> Thanks
>
> Luca
>
>
> On Feb 13, 2013, at 3:36 PM, Dr. Roman Grothausmann wrote:
>
>  > Dear mailing list members,
>  >
>  >
>  > vmtkcenterlines segfaults with a specific data-set of mine. It works all 
> fine
>  > with similar data-sets. I generally get a lot of
>  >
>  > Generic Warning: In
>  > 
> /home/grothama/programme/vmtk-1.0.1/build_iana0_130211/VTK/Common/vtkMath.cxx,
>  > line 553
>  > Unable to factor linear system
>  >
>  > but then it segfaults with:
>  >
>  > *** glibc detected *** python: corrupted double-linked list:
> 0x000000000ea4f9c0 ***
>  > ======= Backtrace: =========
>  > /lib/x86_64-linux-gnu/libc.so.6(+0x76d76)[0x7fe2488ddd76]
>  > /lib/x86_64-linux-gnu/libc.so.6(+0x7880c)[0x7fe2488df80c]
>  > /lib/x86_64-linux-gnu/libc.so.6(cfree+0x6c)[0x7fe2488e2aac]
>  > 
> /usr/lib/x86_64-linux-gnu/tls/libnvidia-tls.so.304.64(+0x1cc1)[0x7fe23f628cc1]
>  > ======= Memory map: ========
>  > .
>  > .
>  > .
>  >
>  > How could I solve this problem?
>  >
>  > Any help or hints are very much appreciated
>  > Roman
>  >
>  >
>  > --
>  > Dr. Roman Grothausmann
>  >
>  > Tomographie und Digitale Bildverarbeitung
>  > Tomography and Digital Image Analysis
>  >
>  > Institut für Funktionelle und Angewandte Anatomie, OE 4120
>  > Medizinische Hochschule Hannover
>  > Carl-Neuberg-Str. 1
>  > D-30625 Hannover
>  >
>  > Tel. +49 511 532-9574
>  >
>  > 
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>  > https://lists.sourceforge.net/lists/listinfo/vmtk-users
>

-- 
Dr. Roman Grothausmann

Tomographie und Digitale Bildverarbeitung
Tomography and Digital Image Analysis

Institut für Funktionelle und Angewandte Anatomie, OE 4120
Medizinische Hochschule Hannover
Carl-Neuberg-Str. 1
D-30625 Hannover

Tel. +49 511 532-9574

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