过控制多边形内任意两点的三次有理Bézier曲线权因子的算法

The Algorithm of Weight Factor of Three Times Rational Bézier Curve Through Any Two Points of Control Polygon

给定控制多边形内任意两点,从向量叉乘的模的定义出发,用三角形的面积构造出来有理三次Bézier曲线的权因子,相应得出了过控制多边形内任意两点的三次有理Bézièr曲线.

If any two points of control polygon are given,based on the definition of vector and cross product,with the use of triangle area,the weight factor of three times rational Bézier curve is consructed and consequently the three times rational Bézier Curve through any two points of cantrol polygon.