[vtkusers] Volume mesh of an object with convexe and concave regions

[syssboxx-vtk at yahoo.fr]

Thanks Tim and Torsten,
I'll look at this. 
 
By the way I've read some posts in which it's recommended to use powercrust and it wanted to try it but I didn't find it. It seems that sometimes it's no connection with this site.
 
Best regards,
Stanislava

Tim Hutton <tim.hutton at gmail.com> a écrit :
Stanislava,

You could try some form of surface reconstruction. This code is
already written for VTK which should save you time:
http://www.sq3.org.uk/powercrust

>From the image you sent it looks like it would work. However, the best
results should be obtained from your marching cubes approach since the
original image is a volume. Maybe you need to fill the contours before
running vtkMarchingCubes?

Tim

On 6/10/05, Torsten Sadowski wrote:
> Have a look at this. Maybe it does what you need.
> 
> Torsten
> 
> 
> http://www.ices.utexas.edu/~jessica/software/index.html
> 
> On Fri, 10 Jun 2005 syssboxx-vtk at yahoo.fr wrote:
> 
> > Hi vtk users,
> > I have to visualize a head from contours of MRI images.I tried Delaunay from a txt file with set of points with coordinates.My object has concave and convexe regions,so for the convexes it gives a good results but for the others it's terrible!! (I jointed the result) Is there a way to apply some other filter after Delaunay for improve the result in the concaves. I tried also MarchingCubes applied on the volume with the contours but results are neither good.
> > That's the best choice for this kind of object to get best result and the same time I want a mesh over the originaly points.
> >
> > Thanks for your suggestions
> >
> > Stanislava
> >
> >
> >
> >
> > ---------------------------------
> > Appel audio GRATUIT partout dans le monde avec le nouveau Yahoo! Messenger
> > Téléchargez le ici !
> >
> >
> >
> > ---------------------------------
> > Appel audio GRATUIT partout dans le monde avec le nouveau Yahoo! Messenger
> > Téléchargez le ici !
> >
> >
> >
> >
> > ---------------------------------
> > Appel audio GRATUIT partout dans le monde avec le nouveau Yahoo! Messenger
> > Téléchargez le ici !
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> 


-- 
Tim Hutton - http://www.sq3.org.uk



		
---------------------------------
 Appel audio GRATUIT partout dans le monde avec le nouveau Yahoo! Messenger
 Téléchargez le ici !  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20050610/447339ce/attachment.htm>