摘要
传统的GIS系统缺乏统一的数据格式标准,不同应用系统之间由于文件存储格式不同而无法实现直接数据共享。空间数据仓库技术可以实现GIS数据存储的统一标准化和应用的深层化,而GML的空间数据转换技术可实现Web环境下GIS数据的高速传输和共享。在对现有GIS数据共享方案及其中的各种数据共享模式进行分析的基础上,指出其中的不足之处,然后提出了面向管理的GIS数据共享模式,并就其实施模式和特点进行了研究。
This article pointed out the defects after analyzing the existing schemes and patterns of GIS data sharing. Then we made a brief discussion on the technology of spatial data conversion and spatial data warehouse based on GML, which achieves the standardization of spatial data storage and underlying application. These technologies can also accelerates the transmission of GIS data for web application and improves the GIS data sharing under web. Finally we put forward a management-oriented scheme of GIS data sharing whose implementation and features were elaborated whereafter.
出处
《科技广场》
2007年第7期84-86,共3页
Science Mosaic
