摘要
阐述了一种新的GIS理论成果:大型GIS与数字地球的空间数学基础理论,该理论克服了传统空间数学基础理论的不足。以该理论为理论基础并结合水利信息系统的实际需求运用GIS技术支持下矢栅结合的技术,提出了将数字栅格地图(DRG)作为专业信息系统的参考背景,用户关心的专业实体适时标注的防汛信息系统建设技术路线,该技术路线具有良好的实施前景。同时本文就系统中若干关键技术的设计与实现做了详细阐述。
The paper presents a theoretical base which for information system construction. The theory of space mathematical base of large scale GIS and the digital earth is a new theory for GIS overcoming the shortage of traditional spatial mathematical base. In order to satisfy the requirement of water conservancy system, The author brings forward a vectorgrid coalescence mentality which sustained by the technology of GIS. Base on the mentality the paper presents a technical channel for flood prevention information system. The technical channel employed the DRG as the context reference. At the context reference the consumer can label the symbol of spatial entity symbol at any time. The new method for GIS construction will have nicer implementation foreground. The paper also describes the design and realization of some key technology.
出处
《测绘科学》
CAS
CSCD
北大核心
2005年第6期92-94,共3页
Science of Surveying and Mapping
基金
省水利厅项目
