[vtkusers] scalars not defined at every point

[rashedk]

Thanks David and Eric for your replies. I will be implementing my own code
for this then. To interpolate the unknown scalars, I have thought of using
the weighted average of points with the known scalars. However, weighed
averages will mean finding geodesic distances on the surface mesh. For
anyone faced with a similar problem, here is perhaps a good starting point: 

The vtkDijkstraGraphGeodesicPath class: 
http://www.vtk.org/doc/release/5.4/html/a00416.html

Also sometime ago, another thread discussed a similar issue: 
http://old.nabble.com/How-do-I-interpolate-scalars-along-the-geometric-surface--to22037717.html#a22038692

Rashed. 


rashedk wrote:
> 
> Hi there, 
> 
> I have a set of points, but the scalars are not defined at every point,
> i.e. only defined at some of the points. 
> Is there a way to tell VTK to generate triangles from the points (perhaps
> delaunay triangulation) and then interpolate the scalars somehow to all
> the triangles? 
> 
> Rashed. 
> 

-- 
View this message in context: http://old.nabble.com/scalars-not-defined-at-every-point-tp28190256p28196639.html
Sent from the VTK - Users mailing list archive at Nabble.com.