道路与匝道中线自动绘制的算法与实现  

Algorithm and Realization of Automatic Drawing of Center Line for Road and Ramp

作　　者：王中伟[1] 

机构地区：[1]湖南交通职业技术学院路桥工程系,湖南长沙410004

出　　处：《工程图学学报》2007年第1期144-147,共4页Journal of Engineering Graphics

摘　　要：道路与立交匝道平面中线的计算机自动绘制是道路路线CAD软件的核心功能之一,在道路工程计算机动态交互式设计、计算机辅助成图方面具有基础性作用。依据道路中线线形的曲率变化特点,推导了道路中线坐标计算的通用数学模型,并根据一个工程实例在通用图形系统AutoCAD环境下实现了道路与匝道中线的自动绘制。Computer automatic drawing of center line on plan for roads and ramps is one of the core functions of road route CAD software. It contains basic function on the aspect of computer dynamic interaction design and computer aided drawing for road engineering. According to the changing characters of curvature of road center line, the general mathematical model for computing road center line coordinates is deduced. The automatic drawing of center line for roads and ramps is realized in AutoCAD environment and the example is showed.

关 键 词：计算机应用 道路中线自动绘制 中桩坐标通用数学模型 道路CAD 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]