rached@ee.eng.ohio-state.edu (Rached Zantout) (06/10/91)
I have taken a course in geometric modelling, in it we learn how to get representation for surfaces from a small number of points (B_Spline, Bezier, etc ...). In my research I need to do the reverse, having many data points (3-D coordinates) representing a surface I need an algorithm to build the defining polyhedra of the surface (assuming it is a B_Spline surface). If someone has a ready C-code for this I will be very gratefull if you send it to me. Otherwise pointers to litterature on the subject will be appreciated. Also pointers to litterature on the relationship between a defining polyhedra and the model it represents for the B_Spline surfaces will be very much appreciated (especially on how the polygon changes when the surface is deformed). thanks rached -- "I bear witness that there is only one god, and that Muhammad is his messenger"