摘要
本文分析了海图线状要素自动制图综合的现状以及现有常用的几种自动制图综合的算法,介绍了双向缓冲区算法的概念并给出了双向缓冲区算法的定义,研究并证明了双向缓冲区算法的特性。分析了利用双向缓冲区算法综合海图线状要素的原理,并比较了双向缓冲区算法与现有算法在综合海图线状要素上的优越性。给出了几种确定缓冲区半径的方法,并通过实验验证了由这几种方法确定缓冲区半径的可行性。
In this paper, the actuality and the common algorithm of the chart linear feature automatic generalization were analyzed. The concept and the definition of the double direction buffering algorithm were introduced. Then the characteristics of the double direction buffering algorithm were studied and proved. The principle of generalizing the chart linear feature was analyzed based on double direction buffering algorithm, and the advantages of the double direction buffering algorithm to the common algorithms, such as the perpendicular distance algorithm, was compared. Experimrntal result indicated that it was feasible to decide the buffering radius with these methods.
出处
《测绘科学》
CSCD
北大核心
2009年第2期187-190,共4页
Science of Surveying and Mapping
基金
国家自然科学基金资助项目(40671161)
关键词
双向缓冲区算法
缓冲区半径
自动制图综合
线状要素
double direction buffering algorithm
buffering radius
chart automatic generalization
linear feature
