[vtkusers] calculate the averaging over a neighbor vertices of vertex p

[HASSOUN Mohamad]

hello
I brand new to VTK, and i am in training for the master II, i have a problem 
to calculate the average of the vertex neighbor to the principal vertex p.
an example:
i have a mesh for each edge i have to points p and q, i can separate the 
normal vertices at the feature vertices by  W, if( W!=1) than i have a 
feature vertices. The calculation of W have been done.
i need to preserve the sharp edges, at each feature vertex p, by averaging 
over those neighbor vertices that are feature vertices as well. the goal of 
this calculation is to smooth the function f, by way f is a table 2 
dimensions that he contain a constant value.
TableFunction[p][0]=....
TableFunction[p][1]=....
TableFunction[p][2]=....
how can i doing that??????
thanks a lot for youre help.