The influence parameters /spl beta//sub 1 / and /spl beta//sub 2 / have on bibeta spline curved surface

This paper discusses how Beta spline curve with geometric continuity is influenced by the change of parameters beta 1 and beta 2 , offers the range of parameters beta 1 and beta 2 and presents the algorithm principles of bibeta spline curved surface that is controlled by double parameters. Based on all above, a freedom surface modeling system (FSMS) is designed and some examples are verified and analyzed