顾及地理特征保持的溺谷海岸线化简算法

›› 2013, Vol. 42 ›› Issue (4): 0-0.

• 学术论文 •

顾及地理特征保持的溺谷海岸线化简算法

黄亚锋¹,艾廷华²,刘耀林²,张航峰¹

1. 南京电子技术研究所
2. 武汉大学资源与环境科学学院

收稿日期:2012-01-17 修回日期:2012-09-24 出版日期:2013-08-20 发布日期:2014-01-23
通讯作者: 黄亚锋 E-mail:huangyafeng@china.com.cn
基金资助:
国家863 计划资助项目

Geographic-feature Oriented Ria Coastline Simplification

1. Nanjing Research Institute of Electronics Technology
2. School of Resource and Environment Sciences Engineering, Wuhan University
3.

Received:2012-01-17 Revised:2012-09-24 Online:2013-08-20 Published:2014-01-23

摘要/Abstract

摘要： 顾及地理特征保持的地图综合算法是地图综合领域感兴趣的问题。本研究以溺谷海岸线化简为例对该问题进行了研究，在溺谷海岸成因、地理特征分析基础上提出顾及地理特征保持的溺谷海岸线化简算法。该算法利用Delaunay三角网为支撑几何结构建立河口层次树模型表达溺谷海岸线特有的河口树枝状特征，通过次要河口的删除实现岸线化简。实验结果表明该算法保持了溺谷岸线树枝状特征，同时具有自身拓扑一致性、保证航海安全性等优点。

关键词: 溺谷海岸线, 化简算法, 顾及地理特征, Delaunay三角网

Abstract: Geographic-feature oriented generalization is an active issue in field of map generalization. This study attempts to investigate the question of ria coastline simplification. Based on the analysis of ria coast origin and geographic characteristics, a new method has been developed for ria coastline simplification. Firstly hierarchical estuary tree model is built by Delaunay to represent dendritic pattern of ria coastline. Then minor estuaries is deleted in order to generalize the coastline. The generalization results maintain dendritic pattern of ria coastline, and is self topologically consistent, granted for sail safety.

Key words: ria coastline, simplification algorithm, geographic-feature oriented, Delaunay triangulation

中图分类号:

P208

黄亚锋艾廷华刘耀林张航峰. 顾及地理特征保持的溺谷海岸线化简算法[J]. , 2013, 42(4): 0-0.

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顾及地理特征保持的溺谷海岸线化简算法

Geographic-feature Oriented Ria Coastline Simplification

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