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<p><tt>"Boettcher, Dr. Peter" <Boettcher@kleintierklinik.uni-leipzig.de> wrote on 19/12/2006 04:32:15:<br>
<br>
> Hi all</tt><br>
<tt>> </tt><br>
<tt>> For reference I use a plastic tube during CT scanning of a joint in <br>
> different positions. After 3D-reconstruction of the tube I would <br>
> like to calculate the central long-axis of the 3D-tube.</tt><br>
<tt>> </tt><br>
<tt>> Any comment would be appreciated!</tt><br>
<tt>> </tt><br>
<tt>> Regards, Peter.</tt><br>
<tt>> </tt><br>
<tt>Hi Peter,</tt><br>
<tt> vtkOBBTree has a member function ComputeOBB which looks useful, but would require you to extract the tube into a data set of its own, ie with no other points / cells.</tt><br>
<br>
<tt> Dave P</tt></body></html>