摘要
通过m×n次Bézier曲面和n次Bézier曲线G1、G2连续的条件,分析了Bézier曲面在拼接边界上控制顶点矢量末端的偏差对位置误差、相切误差和曲率误差的影响因素。根据分析结果提出了减小曲面拼接误差的方法,并以汽车发动机罩曲面拼接为例,验证了分析的正确性。
Based on the G1 G2 continuous geometric conditions of th Bézier surfaces and nth Bézier curves,the influencing factors of positional error,tangent error ＆ curvature error for matched Bézier surfaces of vertexes vector end in matched boundary are analyzed.According to the analysis the methods for decreasing matched errors are presented,and take the matched curved surface of engine hood as an example,prove the correctness of the analysis.
出处
《汽车技术》
北大核心
2007年第9期48-52,共5页
Automobile Technology
基金
山东省自然科学基金资助项目(20032X06)。
