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系统地介绍了海洋渔业电子地图系统软件EA2 0 0 0的数据模型和主要功能的设计与实现。EA2 0 0 0采用了面向对象的数据模型 ,紧密的矢栅数据接口 ,以及图层─地图─图集一体化数据组织管理方法。该软件具有开放的数据输入接口 ,图层创作的自动化和动态交互式编辑 ,双向查询检索 ,缩放漫游与多级比例尺联动显示 ,动态显示 ,对象信息自动显示 ,地理信息系统渔船动态监控管理 ,多媒体信息插入管理 ,互操作等功能。
This paper systematically introduces the design and implementation of data model and main function of marine fishery electronic map system software EA2000. The EA2000 employs an object-oriented data model, a tight raster data interface, and an integrated data organization and management methodology for a layer-map-atlas. The software has an open data input interface, layer creation automation and dynamic interactive editing, two-way query retrieval, zoom roaming and multi-level scale linkage display, dynamic display, automatic display of object information, GIS dynamic monitoring and management of fishing vessels, multimedia Information insertion management, interoperability and other functions.