[vtkusers] medial line extraction

[Bayliss, Chris (Chicago)]

Joao,

 

To my knowledge, the vtkPowerCrustSurfaceReconstruction filter can calculate the medial sheet of a shape.  From the medial sheet, the medial axis can be found using vtkDijkstraGraphGeodesicPath.  

 

The Powercrust filter is not part of the standard VTK release, so you need to add this class to your library.  I have not been able to successfully implement the Powercurst filter personaly.  

 

Perhaps, someone who has used it could provide some detailed instructions, such as: the folder they added it to, exact modifications to the cmake.lists files, and any additional steps required to implement this filter.  I have found some instructions on the mailing list and on some discussion boards, but so far it has not worked for me.

 

Regards,

 

Chris

 

 

From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] On Behalf Of João Domingos
Sent: Friday, May 11, 2012 3:21 AM
To: vtkusers at vtk.org
Subject: [vtkusers] medial line extraction

 

Good morning everyone!

 

Currently I find 3D deformable models (meshes) of slightly different shapes in my datasets. What I need now, is a way to extract the central line/medial axis of those meshes or surfaces (I have both). From your knowledge what is out there already implemented that can do this (preferably in a quick way)?

 

Many thanks,

Joao

 

 

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