摘要
从等深线的特点及其制图综合的基本原则与方法出发,提出了一种基于曲线特征的Douglas-Peucker改进算法,在此基础上构建了等深线自动综合方法。该方法通过对曲线特征点的提取和弯曲特征的分析,可以自动确定等深线综合的数量指标和最小分界指标,经试验验证取得了较好的综合效果。
In this paper,after analyzing the characteristic of contour,the generalization rules and the generalization method,an improved Douglas-Peucker algorithm was advanced based on curve characteristic,and a contour automatic generalization method was established.This method could obtain the contour automatic generalization amount index and least dividing line index by extracting curve characteristic points and analyzing curve characteristic,which had got a good generalization effect.
出处
《海洋测绘》
2014年第5期38-41,共4页
Hydrographic Surveying and Charting
关键词
等深线
曲线特征
自动综合
depth contour
curve characteristic
automatic generalization
