摘要
传统的等误差直线逼近法从被逼曲线的端点开始计算节点。文章在此基础上提出一种非圆曲线节点计算新方法,以被逼曲线曲率半径最小点开始,按等误差法求取节点,再根据曲线规律对节点重新进行排序,输出节点坐标值。用该种方法逼近曲线,在逼近误差等于等误差法逼近误差的条件下,节点数少于等误差法求得的节点数,文中用C语言编写新方法求取节点程序,并与传统方法进行比较,最后用曲线方程进行验证,结论正确,具有实际意义。
The traditional calculation nodes method on equal error approximating non-circular curve with beeline is calculated from the port of the curve. In this paper a new calculation method is presented for the node of approximating non-circular curve with beeline based on equal error, which must oalculate nodes from the point of the least curvature radius of the curve. Then the nodes are outputted. The nodes with the new method is fewer than the nodes with equal error method, it has been validated with the program of seeking nodes is written by C language in this paper.
出处
《组合机床与自动化加工技术》
2005年第5期32-33,共2页
Modular Machine Tool & Automatic Manufacturing Technique
关键词
等误差直线逼近
非圆曲线
节点
equal error approximating with beeline
non-circular curve
node
