GIS is a concentrative system including computing science, geographic database system, and development of application system.
地理数据库系统和应用开发为一体的高技术体系。
This paper mostly introduce three issues of Vehicle Navigation System, that are navigation geographic database standard, data structure and data model, superior road.
本文主要介绍了汽车导航系统中的导航地理数据库标准、数据结构与数据模型、最优路径三个问题。
Relying on database and geographic data engine discusses and designs the organization and management of multi-source data in digital map publishing system.
以数据库为依托，借助地理数据引擎，探讨并设计了对多源数据在数字地图出版系统中组织及管理；
Taking Geographic Information System (GIS) as an urban environmental modelling framework allows modellers to use database, data visualization, and analytical tools in a single integrated environment.
用地理信息系统(GIS)作为一个环境模型框架，允许模型开发者在一个单独的集成环境下使用数据库、数据可视化和GIS的强大分析工具。
Therefore, geographic data model based on relation typed database is established in developing information administrative system of nature reserves.
为此，在开发自然保护区信息管理系统时，建立了基于关系型数据库的地理数据模型。
This paper presents the administrative structure and function of population geographic information system, and discusses how the demographic-geographical integrated database established.
本文详细介绍了系统的结构、功能，并探讨了系统建设中的一些关键问题，如人口地理综合数据库的建立等。
In this scene system, Derive ocean geographic information database from actual electronic chart data, and according to these database build ocean terrain and entity model database.
本视景系统从真实的电子海图数据中提取海洋地理信息数据库，并根据这些数据库建立海洋地形模型利实体模型库。
The function of the system covers the entire progress of the real estate development, including database, office automation and geographic information system etc.
所介绍的功能覆盖了房地产管理系统开发的全过程，综合了数据库、办公自动化、地理信息系统等知识和技术。
In this paper, we have established a database system facilitating the inquiry of the geographic object "s spectrum feature on the basis of the present study results."
结合当前地物波谱的研究现状及成果，建立了一个便于查询山东科技大学地物波谱特性的数据库系统。
The map symbol database is an very important part in Digital Mapping system and Geographic information system.
地图符号库是数字化成图系统与地理信息处理软件中的一个重要的组成部分。
The map symbol database is an very important part in Digital Mapping system and Geographic information system.
地图符号库是数字化成图系统与地理信息处理软件中的一个重要的组成部分。
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