[vtkusers] Surface/3D-object construction with xyz point data ?

[Nithiananthan, Sajendra]

Jarno,

Depending on your dataset and what you want to do, you could try the
SurfaceReconstructionFilter (
http://vtk.org/doc/nightly/html/classvtkSurfaceReconstructionFilter.html )
It's worked well for me for some datasets.  I think it doesn't respect the
positioning of the points and will create the reconstructed surface at the
origin.

-SN

-----Original Message-----
From: vtkusers-bounces+sajendra.nithiananthan=rmp.uhn.on.ca at vtk.org
[mailto:vtkusers-bounces+sajendra.nithiananthan=rmp.uhn.on.ca at vtk.org]On
Behalf Of Jarno Ahma
Sent: Friday, June 29, 2007 6:39 AM
To: vtkusers at vtk.org
Subject: [vtkusers] Surface/3D-object construction with xyz point data?


Hi,

this question might be trivial for many VTK-users, but I'm not familiar with
VTK and I'm stuck with this. 
Help would be appreciated greatly.

I'm getting data in angle/radius form, which I convert to array of
xyz-points. Basically, in testing, I generate these points and use constant
radius value, so points are scattered to cylinder-like surface. Inside of
that 'cylinder' there is another two with lower radius value.

Question is, how do I use those points to create clean surface? And by
'clean' I mean that there is just connected points (until I smooth the
surfaces with another filter). I also need both 'cylinder' ends to be
filled, or that xyz-data to be constructed to some sort of object, because
final 3D-model will have 3 objects inside each other (3 actors) and best
result could be gained with boolean operation or combining outer and inner
surfaces (including both ends).

I am using VTK 5.0.1 with C# (WIN 2000/XP) but C++/python/tcl/other examples
will do if provided.

Thanks in advance.
-Jarno

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