Hii andras I've already gone through 3dslicer source code. But the schematic of codes is a little bit hard. I mean im new to these type of arrangement. Your help will be highly appreciated if you help me finding exact files for contouring. Cheers, Itsme. -- Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html