...
首页> 外文期刊>Computer Aided Geometric Design >Optimal arc spline approximation
【24h】

Optimal arc spline approximation

机译:最佳弧样条近似

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       

摘要

We present a method for approximating a point sequence of input points by a G~1-continuous (smooth) arc spline with the minimum number of segments while not exceeding a user-specified tolerance. Arc splines are curves composed of circular arcs and line segments (shortly: segments). For controlling the tolerance we follow a geometric approach: We consider a simple closed polygon P and two disjoint edges designated as the start s and the destination d. Then we compute a SMAP (smooth minimum arc path), i.e. a smooth arc spline running from s to d in P with the minimally possible number of segments. In this paper we focus on the mathematical characterization of possible solutions that enables a constructive approach leading to an efficient algorithm. In contrast to the existing approaches, we do not restrict the breakpoints of the arc spline to a predefined set of points but choose them automatically. This has a considerably positive effect on the resulting number of segments.
机译:我们提出了一种通过G-1连续(平滑)弧样条近似输入点的点序列的方法,该样条具有最小的段数,同时又不超过用户指定的公差。弧样条是由圆弧和线段(简称:线段)组成的曲线。为了控制公差,我们采用一种几何方法:考虑一个简单的闭合多边形P和两个不相交的边,分别指定为起点s和终点d。然后我们计算一个SMAP(平滑的最小圆弧路径),即在P中从s到d的平滑圆弧样条线,且段数尽可能少。在本文中,我们专注于可能的解决方案的数学表征,该解决方案使构造方法可导致有效的算法。与现有方法相比,我们不将弧样条的断点限制为一组预定义的点,而是自动选择它们。这对所得的段数具有相当大的积极影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号