环境动态监测的WebGIS设计与实现  

The Design and Implementation of Environmental Monitoring WebGIS

作　　者：黄丙湖[1] 闾国年[1] 刘二年[1] 张强[1] 

机构地区：[1]南京师范大学地理信息科学江苏省重点实验室,南京210097

出　　处：《地球信息科学》2004年第4期11-14,共4页Geo-information Science

摘　　要：从环境监测中WebGIS动态管理入手,分析了因图层的动态性特点引发的动态图层如何管理,服务器端如何控制客户并发访问等一系列问题。系统采用基于UML的可视化设计方法,探讨了环境监测中WebGIS的几个主要类的设计,包括服务器端主要类的组成及其关系,动态图层如何管理类图,客户会话信息如何存储的类图。This paper begins with the problem of how to manage the dynamic environmental monitoring point layers. It firstly points out that something must be considered for meeting the requirement of managing the dynamic layers. Such as, how to solve the problem when many clients visit the server simultaneously, and how to save the session information of the clients individually.Thinking the above problems, this paper gives some primary class diagrams based on Unified Modeling Language and describes the function and relationship of the diagrams, which can accelerate the software development based on the UML tool. The server end includes the classes like MapX, MapXServer, MapXbroker and some other classes. Each class has its own function, some relationships among the classes have been given. The system developing environment adopts the Microsoft .NET, for the .NET is easier and faster to develop the software.

关 键 词：环境监测 WEBGIS 类图 .NET 对象池 

分 类 号：X830[环境科学与工程—环境工程]