电子海图的航线多尺度生成方法  

A method for multi-scale routing based on ECDIS

作　　者：张莉[1,2] 金一丞[1] 汪柱[3] 张立华[3] 李树军[1,3] 

机构地区：[1]大连海事大学航海学院,辽宁大连116026 [2]海军大连舰艇学院科研部,辽宁大连116018 [3]海军大连舰艇学院海洋测绘科学与工程系,辽宁大连116018

出　　处：《测绘科学》2011年第5期197-199,共3页Science of Surveying and Mapping

基　　金：国家自然科学基金项目(40801189);国家863计划项目(2009AA12Z202)

摘　　要：针对当前航线自动生成方法未考虑航线跨越多幅海图的问题,本文提出了基于电子海图的航线多尺度生成方法。考虑到海图的特点,设计了海图数据多尺度表达方案,解决了海图航线的多尺度生成的关键技术问题,实现了海图航线的多尺度自动生成。实验证明:本文所提方法在电子海图多图幅无缝拼接的基础上,可实现长距离航线的多尺度生成;能够根据某航行的始末点经纬度,生成各LOD模型层,提供用户不同比例尺的海图航线。Aiming to the lack of the considering of the issue that the routes may across pieces of charts existing in current automatic routing methods, this paper proposed a method for multi-scale routing based on ECDIS. Taking into account the chart＇ s features, the multi-scale expression of chart data was designed and the multi-scale automatic routing was realized. The experimental results demonstrated that the proposed method could achieve multi-scale generation for long-distance routes based on the seamless of pieces of EC- DIS, and generate the LOD layers according to the latitude and longitude coordinates of a voyage＇ s starting and ending point, thus provide the user with different scale charts routes.

关 键 词：电子海图 航线 多尺度 

分 类 号：P229.3[天文地球—大地测量学与测量工程]