基于GeoScene的时空数据多维动态可视化方法——以湖北新冠疫情数据为例  

GeoScene-based approach for multi-dimensional and dynamic visualization of spatio-temporal data: taking COVID-19 epidemic data in Hubing for instance

作　　者：王育红 冯锋 左雨芳 孙冉 WANG Yuhong;FENG Feng;ZUO Yufang;SUN Ran(School of Geography,Geomatics and Planning,Jiangsu Normal University,Xuzhou 221116,China)

机构地区：[1]江苏师范大学地理测绘与城乡规划学院,江苏徐州221116

出　　处：《测绘工程》2022年第6期1-6,共6页Engineering of Surveying and Mapping

基　　金：国家自然科学基金资助项目(U1304401);江苏省研究生科研与实践创新计划项目(KYCX21_2572);江苏师范大学研究生科研与实践创新计划项目(2021XKT0092)。

摘　　要：为了克服传统GIS因忽略空间数据时间特征,而不能有效描述展示事物动态变化过程的不足,提出基于GeoScene的时空数据多维动态可视化方法。文中以湖北新冠疫情时空数据为例,首先阐述该方法通过地理数据库(GeoDatabase)将时空数据“管”起来的单、双字段模型;继而描述了利用地图、场景、属性表及统计图使数据“展”出来的4种可视化形式;最后分析凭借时间滑块、动画视频让数据“动”起来的两种实施策略。研究表明该方法具有可视化手段多样、二三维融合联动、易于发布共享、无需复杂的编程实现等优点。该研究可为解决同类可视化应用问题提供实用的技术参考和灵活的方法选择。A GeoScene-based approach is proposed for multi-dimensional and dynamic visualization of spatio-temporal data, in order to overcome the drawbacks of the traditional GIS that the dynamic change process of things can’t be efficiently presented since the time property of spatial data is often ignored by it.Taking the spatio-temporal data about COVID-19 epidemic in Hubing for instance, two data models for managing them in geodatabase are firstly explained in the proposed approach, namely single-field and double-field model.Secondly, four forms for visualize them are respectively analyzed, including map, scene, attribute table and statistic chart.Finally, two strategies for making them moving are discussed, namely time slider and animation video.The research results show that the proposed approach has some advantages such as various visualization ways, integration and linkage between 2D and 3D,easiness of sharing and distribution, no-requirements for programming.The achieved results can supply the practical technology guidelines and the flexible method selections for be the perfect solution to the similar visualization application issues.

关 键 词：时空数据 可视化 GeoScene 地理数据库 新冠疫情 

分 类 号：P208[天文地球—地图制图学与地理信息工程]