[vtkusers] Assigning scalars to a Sphere surface

[Xiaobin Wang]

Hi all

I have a set of scalar data that distribute on the  sphere  surface  ,that
is ,  the data  is  on longitude and latitude coordinates .

Now I want to color these  data into a sphere surface that is represented by
a polygons created by vtkSphereSource (SetLatLongTessellation).

However, I didnot find any feasible way to assign data to a sphere surface
as a entity . Only what I find is to assign individual point data one by one
,

and it is boring and impossible when resolution increases.

Any one can help?
Any hint will be really appreciated !
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