摘要
针对如何对海量、多源、高维的时空轨迹数据进行交互可控、形象直观的可视化分析这一地理信息系统(GIS)领域的热点问题,该文提出了一种出租车全球定位系统(GPS)轨迹数据的网页端三维动态可视化方法,通过空间比例尺和时间比例尺的双重控制,运用粒子系统构建了城市大尺度三维场景中GPS轨迹的模拟移动模型。实验结果表明,该方法可以直观地反映出租车轨迹的时空演变规律,具有良好的可交互性,可以通过网络平台广泛地应用到各种轨迹数据的实时监控和历史分析中,为交管部门的管理和出租车公司的车辆调度提供依据。
Aiming at the hotspot issue in the field of geographic information system(GIS)how to make interactive,controllable,visual analysis of massive,multi-source,high-dimensional spatiotemporal trajectory data.A method for three-dimensional dynamic visualization of taxi global positioning system(GPS)trajectory data on web tier was presented in this paper.Through the dual control of space scale and time scale,the simulated movement model of GPS trajectory in urban large-scale three-dimensional scene was constructed by using particle system.The experimental results showed this method could directly reflect the temporal and spatial evolution of taxi trajectory and has good interactivity.It could be widely applied to real-time monitoring and historical analysis of various trajectory data through network platform,providing a basis for the management of traffic control departments and vehicle scheduling in taxi companies.
作者
王静雯
艾廷华
WANG Jingwen;AI Tinghua(School of Resource and Environmental Sciences,Wuhan University,Wuhan 430079,China)
出处
《测绘科学》
CSCD
北大核心
2020年第2期166-171,共6页
Science of Surveying and Mapping
