江苏省水利地理信息服务平台降雨等值线绘制系统的分析与设计

Architecture Design of Rainfall Isoline System of Platform of Geographic Information for Water Conservancy of Jiangsu Province

等值线是普通地图和专题地图上表达地貌、地理和社会经济要素时经常用到的地图符号之一,降雨等值线以等值线的形式描述了降雨分布情况。该文阐述了江苏省水利地理信息服务平台中降雨等值线绘制系统的架构设计,对其中的雨量数据提供服务、等值线计算服务、等值线绘制模块、等值线发布模块进行了深入描述。该架构实现了降雨量数据来源于服务、降雨等值线生成功能基于服务、降雨等值线绘制结果发布为服务,外界能够基于它灵活构建自己的等值线绘制系统。该系统提供的等值线服务已经为多个应用系统提供了支撑。

Contours are one of the map symbols that are often used to express geomorphology,geography,and socio-economic elements on ordinary maps and thematic maps.Rainfall isoline describe rainfall distribution in the form of contours.This paper introduces the architecture design of rainfall isoline system platform of geographic information for water conservancy of Jiangsu province.This paper provides an in-depth description of the rainfall data provision service,contour calculation service,contour drawing module,and contour release module.This paper provides the service of rain data、the service of rainfall isoline generation and the service of rainfall isoline result.Base on this paper,we can flexibly structure rainfall isoline system.The rainfall isoline service provided by the system has provided support for multiple application systems.