[vtkusers] RE Best 3D rendering technique for a point cloud?

[Stephane PLOIX]

Hi,

You could try the point sprites included in paraview. 
It is available in the sources of paraview in the Plugins/PointSprite 
subdirectory.
The point sprite paraview plugin has a vtk-only part that you can use 
outside of paraview, there is an example in the Examples/Rendering/Cxx 
sudbirectory.

Best,
Stephane

  
 
Stephane PLOIX
Pilote Opérationnel - Visualisation scientifique
EDF - R&D
SINETICS
1, Av du Général de Gaulle
92140 Clamart
 
stephane.ploix at edf.fr
Tél. : +33 (0) 1 47 65 51 10
  
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jasontang65 at gmail.com 
Envoyé par : vtkusers-bounces at vtk.org
22/07/2010 23:15

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vtkusers at vtk.org
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Objet
[vtkusers] Best 3D rendering technique for a point cloud?







Hello,

I currently have a large, evenly spaced point cloud that is color mapped
with scalar data. It looks pretty good in 2D and 3D but once you zoom in 
the
resolution deteriorates dramatically because of the pixel spacing (which
cannot vary because the pixel data comes from a file).

I just want to hear some of your opinions on the best way to create a 3D
rendering using this data to fit nicely on a 3D surface (right now the 
point
cloud is a vtkPolyData). 

I've tried vtkImageData and GDCM modules (both of which don't work very 
well
in my case to my dismay) and delaunay triangulation (which looks good but
it's hollow which is a problem since the point cloud is "solid").

Thanks everyone,
Jason
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