[vtkusers] Need to pick a cell and it's neighbors

[tasnim]

Hello
is there anyone who tried to pick a cell and its cells and points
neighbors!!. It means that my cellId will not be fixed like this example :
http://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/CellPointNeighbors
http://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/CellPointNeighbors  in
which our cellId is fixed to " 0 " for example. My aim is that when i pick
on the mesh, i will retrieve its neighbors ( cells and the vertex's cells
also). 
I tried to modify this example but some thing is wrong :/
any help please,
thanks,
Tasnim



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