[vtkusers] Rendering of a set of points

[Armeni Davide]

Hi, everyone
I have this file of data, 
How could I render this set of points
to obtain really a sphere and not simply a set of points ??
It is possible with filters ??
thanks if someone could help me ...
 
# vtk DataFile Version 1.0
PolyData ex 
ASCII
 
DATASET POLYDATA
POINTS 33401 float
 -20.0   0.0   0.0
 -19.0  -6.0  -1.0
.......
 
vertices  33401 66802
 1     0
 1     1
 1     2
 1     3
 1     4
 1     5
 1     6
 1     7
..........
 
POINT_DATA   33401
SCALARS scalars float
LOOKUP_TABLE default
   0.00
   0.10
   0.20
.....


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