移动平台下栅格海图数据快速显示方法研究  

A Method of Quick Display of Grid Chart Data on Mobile Platforms

作　　者：李改肖[1,2] 李树军[1,2] 董晓光[3] 原野[3] 

机构地区：[1]海洋测绘工程军队重点实验室,辽宁大连116018 [2]海军大连舰艇学院海洋测绘系,辽宁大连116018 [3]海军出版社,天津300450

出　　处：《海洋测绘》2016年第3期56-59,共4页Hydrographic Surveying and Charting

摘　　要：移动平台下移动式ECDIS开发的基础且关键环节为海图数据的前台快速调度显示。受制于移动平台硬件弱点,数据显示调度前,需对原始数据进行瓦片金字塔模型化处理。以栅格海图数据为例,通过栅格海图数据瓦片金字塔模型构建与组织,利用瓦片快速定位和三级缓存机制实现了移动平台下栅格海图数据前台快速显示,并通过实验验证了方法的可行性。The basic and key link of mobile ECDIS developed is the quick display of the chart data on the mobile platform. Be subjected to the weaknesses of the mobile platform hardware,the initial data need to be processed in tile-pyramid model before data displaying. Taking the gird chart data as an example in this paper,through tilepyramid model constructed and organized for the gird chart data and using tile quick location and the three level cache mechanism,the quick display of the grid chart data is realized. The feasibility of the method is validated through the experiment.

关 键 词：栅格海图 电子海图显示信息系统 移动平台 瓦片金字塔 三级缓存 

分 类 号：P208[天文地球—地图制图学与地理信息工程]