地图边界线的一种快速生成方法  

A Rapid Map Boundary Generation Method

作　　者：刘惠义[1] 陈金水[1] 

机构地区：[1]河海大学计算机及信息工程学院

出　　处：《河海大学学报（自然科学版）》1996年第6期29-32,共4页Journal of Hohai University(Natural Sciences)

摘　　要：地图边界线是一种不确定的曲线，用计算机绘制这类曲线时，曲线上的点基本上靠手工输入，工作量大．本文提出的快速生成方法是先用多边形描述这类曲线，然后由计算机对多边形作随机化“波动”，从而模拟出地图边界线．该方法使地图边界线的生成既快捷。The boundary line of a map is a kind of curve that can′t be defined by an equation. In computer graphics processing system, the digitizer is used to input points of the curve, and that is time consuming. The method descripted in this paper is to use the polygon to define the boundary line first, then to implement random processing for every edge of the polygon by the computers to simulate the boundary line. By use of this method, the boundary line can be generated rapidly and a vivid description of this kind of curve can be obtained.

关 键 词：地图边界 随机曲线 数学制图 机械制图 

分 类 号：P282[天文地球—地图制图学与地理信息工程] TH126[天文地球—测绘科学与技术]