采用NURBS进行汽车壳体计算机拟实造型的方法

NURBS建模方法是一种理想的曲面仿真技术，适合复杂表面的计算机拟实造型。通过新型跑车外观壳体的仿真制作，介绍了该方法的实施步骤，其简便的造型过程、灵活的控制方式、突出的仿真效果将新型跑车流线型外表展现无遗。NURBS建模方法比其他建模方法能更好地控制物体表面曲线度，从而可以创建出曲面更为复杂、形状更为生动、效果更为逼真的造型，必将在CAD和CAM领域获得广泛应用。

Computer virtual reality modeling method of car crust by adopting NURBS

The modeling method of NURBS is a perfect copying technology o f curved surface,it suits to the computer virtual reality modeling of complex surf ace.Passing the copying facture of a new roadster crust,this paper introduces th e using step of NURBS,the simple modeling process and the flexible control manne r and the extrusive copying effect of NURBS open out the streamline surface of t he new roadster.The modeling mefthod of modeling objects that possess complex su rface and juicy shape and lifelike effect,thus,it must gain abroad use in the fi eld of CAD and CAM.