摘要
网络地理信息系统(WebGis)实现了Internet环境下地理空间信息的有效管理与处理,是地理信息系统(GIS)走向社会化、大众化、服务化的有效途径。态势表达涉及复杂的业务逻辑处理和海量标绘的渲染,基于WebGis的态势表达往往需要权衡性能与效果,在满足需求的情况下提升页面性能和显示效果。从AJAX、Flex、Silverlight富客户端技术和WebGis服务器、空间数据库等服务器端技术及聚类分组、屏幕网格算法等方面进行了探讨和分析,为WebGis页面性能提升和态势显示效果改进提供解决思路和方法。
WebGis realizes efficient management and processing of geographic space information on the Intemet, and leads Geographic Infomation System （GIS） to be socialized, popular and servitized. The situation representation has complex processing of business logic and massive drawings to render, thus it has to balance between performance and effect, increasing page performance and display effect on meeting the requirements. The RIA technologies about AJAX, Flex, Silverlight, and WebGis services, spatial database, cluster group, screen grid algorithms are studied and analyzed, and provides ideas and methods to increase page performance and display effect.
出处
《计算机与网络》
2013年第2期61-64,共4页
Computer & Network
