WebGL在线动态地图服务框架设计

针对在线动态地图的交互性强、制图过程灵活、数据复杂多样、受众面广等特点及优势,本文基于WebGL技术设计了一种在线动态地图服务架构。该架构通过设计面向海量矢量数据的在线地图数据模型,定义在线地图切片的存储结构,并充分利用计算机硬件加速能力,实现了海量矢量切片数据的快速可视化和动态更新。为检验方法的可行性,利用该框架研发了某县的"多规合一"地理信息服务平台,结果表明,该框架提升了在线动态地图平台的实用性和操作性,为在线动态地图服务提供了可靠的理论和技术支撑。

Online dynamic map service framework research based on WebGL

Strong interactive features, flexible mapping process, complex and diverse data, and wide audiences for online dynamic maps,This paper designs an online dynamic map service architecture based on WebGL technology.This architecture defines the online map data model for massive vector data, defines the storage structure of the online map slice, and makes full use of the computer hardware acceleration capability to achieve rapid visualization and dynamic update of massive vector slice data.To test the feasibility of the method, this framework was used to develop a “multi-information geographic information service platform” in a county, The results show that the framework improves the practicality and operability of the online dynamic map platform and provides reliable theoretical and technical support for online dynamic map services.