【作者】 任海军；

【导师】 李见为；

【作者基本信息】 重庆大学 ， 模式识别与智能系统， 2003， 硕士

【摘要】 地理信息系统是采集、存储、管理、分析和显示地球空间信息的信息系统。分布式网络技术发展，为空间数据共享和交换提供了硬件基础。随着面向对象数据库技术的发展，存储和管理空间数据海量数据成为可能；地理信息系统的广泛应用，这使得地理信息共享成为必然趋势。一个开放的，易于访问的地理信息系统将有利于各个部门之间的信息交流，实现数据和服务的广泛共享。开放性与标准化对地理信息系统规模化与综合发展起着重要作用，它是实现地理信息的互操作的前提条件。通过标准化的操作接口，可以使不同的系统之间遵循统一的操作规程，保证数据操作的正确性与高效性。在国内外有许多组织已经制定了各种地理信息系统标准,OpenGIS Consortium是一个国际性的、具有一定影响力的标准化组织，它提出了开放的地学数据互操作规范，通过行业标准和接口建立开放的地理信息系统，实现地理信息互操作和共享。论文系统分析了地理信息系统标准和空间数据模型，并对常见的空间文件格式进行分析；总结以前的空间数据共享体系结构；提出了新的空间数据库平台共享方案；在研究了Oracle Spatial对空间数据解决方案后，设计并实现以Oralce Spatial为存储GIS系统的空间数据、属性数据，和元数据，实现数据一体化管理模式；并实现ESRI公司的.SHP格式文件、XML等格式文件和数据库之间的空间数据转换系统；采用AutoDesk公司MapGuide6.0和JSP开发了一个WebGIS应用系统；采用纯Java方式，离开一般的GIS平台，采用Oracle公司提供的接口，开发基于Java虚拟机的简单GIS系统，实现了简单GIS系统部分功能，如放大，缩小，坐标转换等。整个系统采用跨平台的面向对象语言Java和软件工程技术保证了系统的跨平台、可靠性、稳定性、开放性和模块之间的独立性。更多还原

【Abstract】 Geographical Information System is an information system, which collects, stores, analyses, processes and displays the geographical information. The Internet and distributed computing technology provide the hardware for share and exchange of spatial data. With the development of ORDBMS technology, it enables the storage of huge scale of spatial data. The expansion of GIS needs the share and exchange spatial data. A geographic information system with open interface will promote the exchange and share spatial data in different departments.It is important for the complexity and integration of geographical information system to open and standardized operation interface, which enables different system to interoperate in a standard way and ensure the validity and efficiency of operations. Many domestic and international organizations have set up standards of geographical information. The Open GIS Consortium is international standardization organization with influence. The Open Geo-Data interoperability specification intends implementation share and interoperations of geo-data by open geographical information system with industry standards and open interfaces.This article discusses the standard of Geographical Information System and the model of geo-data. After analyzing the present system of geo-data share, presents a new method of spatial database. It designs and impalements a data share and exchange system, which enable storage geo-data attribute data and meta data to realize the integrative management of data. It also enables transform the format of geo-data file from .shp file to WKT file and XML file each other, the paper uses AutoDesk’s WebGIS software , MapGuide6.0、JSP and Java Bean to develop a WebGIS system. In the last part, adopting Java program language and making use of the interface supported by Oracle Spatial, this article develops a simple GIS system to test the geo-data share and transform system functions, such as zooming, panning and spatial reference system. The development of modern software engineering and Java language supply insurance to build the system include credibility, stability, easy access and migration and independence between modules.更多还原