中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 1994, Vol. 13 ›› Issue (S1): 76-82.

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公路纵断面自动生成的一种新方法

吴国雄   

  1. 重庆交通学院道路工程系
  • 收稿日期:1994-09-20 修回日期:1994-09-20 出版日期:1994-08-05 发布日期:2015-04-15
  • 作者简介:吴国雄,男,28岁,讲师

A New Method of Automatical Forming of Highway Vertical Profile

Wu Guoxiong   

  1. Dept.of Highway Engineering
  • Received:1994-09-20 Revised:1994-09-20 Online:1994-08-05 Published:2015-04-15

摘要: 本文利用二次B样条拟合的原理,对路线纵断面地面线作平顺处理,然后进行反复拟合,生成一条“准纵断面线”,并自动生成准纵断面线的曲率图,然后采用直线和圆曲线对曲率图进行拟合,生成满足路线纵面设计要求的纵断面线。文中还对纵面线形生成过程中的约束处理作了讨论。

关键词: 二次B样条拟合, 准纵断面线, 纵断面线, 约束处理

Abstract: Based on the principle of two order B-spline modelling this paper procaseed the terain line of pro-file and modeled alternately to form a under-vertical profile and its curvature figure.Then,using unitsof tangent line and circular curve,the curvature figure was modeled to form a vertical profile thatmeets design demands.At last,the constraint boundaries that restrained the forming of vertical profilewere discussed.

Key words: two order B-spline, vertical profile, under vertical profile, constraints processing

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