改进的非均匀有理B样条曲面片拼接算法OA北大核心CSCDCSTPCD
Improved curve surface seamless splicing based on NURBS
研究了已网格化的曲面片之间的拼接技术并对现有的拼接算法进行了改进.首先,根据哈特利-贾德的弦长参数化算法求取非均匀有理B样条(NURBS)曲线上的节点向量,利用节点向量和曲线反求出控制顶点,并采用投影变换的方法求出权因子.其次,根据要求调整曲面片上的控制顶点,使曲面片之间达到G1连续.最后,再对已拼接好的曲面片上的控制顶点进行整体修改,重新排列整张曲面片上的控制顶点,从而实现曲面片的无缝拼接.用专业的三维造型软件对拼接后合并的曲面片进行了测试,结…查看全部>>
This paper researched a splicing technology for gridded curve surfaces and improved the existing splice algorithms. On the basis of Hartley Judd chord length parameters, the joint vectors on Non-Uniform Rational B-spline(NURBS) curves were gotten. Then, joint vectors and curves were used to calculate control peaks with a reverse method and the projection transformation means was taken to obtain the weight factors. Furthermore, the control peaks on splicing s…查看全部>>
吴禄慎;高项清;熊辉;陈华伟
南昌大学机电工程学院,江西南昌330031南昌大学机电工程学院,江西南昌330031南昌大学机电工程学院,江西南昌330031南昌大学机电工程学院,江西南昌330031
信息技术与安全科学
非均匀有理B样条曲面片无缝拼接曲面片算法
Non-uniform Rational B-spline(NURBS) curve surface seamless splice curve surface algorithm
《光学精密工程》 2013 (2)
汽车及飞机模具数字化快速修复与再制造技术
431-436,6
国家自然科学基金资助项目(No.51065021)
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