摘要
研究了NURBS曲线几何特征的修改。基于约束优化,给出了采用最小二乘法修改NURBS曲线上给定点处的切矢、曲率等几何特征的方法。该方法可实现多种形状修改和变形效果,便于交互设计。
The geometric features modification of NURBS curves are discussed in this paper. By means of constrained optimization, this paper uses the LSM （Least Square Method） to modify the geometric features such as tangency and curvature of the selected point on a NURBS curve. This method is very convenient for interactive, and can realize design and various shape modification effects.
出处
《西安邮电学院学报》
2007年第5期120-123,共4页
Journal of Xi'an Institute of Posts and Telecommunications
关键词
NURBS曲线
约束优化
几何特征
形状修改
NURKS curves
constrained optimization
geometric features
shape modification
