一种碍航区自动提取的方法  

A Method for Constructing Obstacle Areas

作　　者：张浩[1] 栾俊[1] 纪宏宇[1] 孙晶[1] 

机构地区：[1]海军出版社,天津300450

出　　处：《海洋测绘》2015年第6期55-57,共3页Hydrographic Surveying and Charting

摘　　要：提出了一种构建碍航区的方法,利用非闭合等深线和三角网边界线的拓扑关系自动分割多边形区域,依据分割区域边界上的水深值确定区域是否碍航;综合考虑人工碍航区、点状碍航物等因素,完备了海区碍航区集合。实验证明,所提方法切实可行,有效地完善了舰船航线自动生成的理论基础。A method for constructing obstacle areas is proposed topologic relationship of unclosed isobaths and boundary Firstly, polygon areas are automatically divided by ines of triangulated irregular network （TIN）. Secondly, shallow areas are got according to depths on boundary lines of divided polygons.Thirdly, man-made areas and dotted areas also need to be taken into consideration. Experimental results demonstrate：the proposed method is effective, and it is the foundation of automatically constructing routing.

关 键 词：海图制图 等深线 拓扑关系 区域分割 碍航区 

分 类 号：P208[天文地球—地图制图学与地理信息工程]