一种计算空间封闭曲面正侧法向量的方法

A Method to Calculate the Normal Vector of a Closed-Curve Surface

在三维物体表面光照处理、三维曲面上曲线所围区域的计算以及三维物体体积计算等应用中 ,需要计算曲面正侧法向量。针对三角形网格表示的空间封闭曲面 。

In handling the surface of a 3D object with light,calculating the area of closed curve on the 3D object and computing the volume of a 3D object,the normal vector needs to be calculated.For this reason,this paper presents a brief and concise algorithm to calculate the normal vector of 3D object surfaces.