电子海图的航线多尺度生成方法

A method for multi-scale routing based on ECDIS

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.