摘要
本文把《计算几何》中的B样条函数和圆弧样条函数结合起来,给出了一种几乎完全利用计算机来设计公路纵断面线形的方法。用这种方法作纵断面设计,不仅使约束条件的处理极其灵巧,而且可以进行人工拉坡定线的智能模拟,设计出符合习用的纵断面线形。作者根据新建立的数学模型编制了相应的电算程序,结果证明该法是可行的。
Based on B-spline and arc spline, this paper presents a method for design- ing vertical alignment of highway almost fully by computer. Becaue of the locality and flexibility of B-spline, this method not only makes the treat of the constraint conditions very smart, and simulates intelligently the manull design of vertical alignment as well. The results conform to the common form of the vertical alignment. According to the mathematical model set up, the author has developed computer programs in FORTRAIN77. It has been shown that this method is feasible.
关键词
公路
纵断面
自动优化
数字模型
profile
automatic optimizition
DTM, B-spline
arc spline
