【摘要】 多维时空数据的可视化是信息可视化领域一个深受关注的问题。首先分析了时空数据的构成要素和特点,在此基础上通过在空间模型中引入时间的概念,研究了基于事件的时空数据模型,并进一步提出了几种时空数据的可视化方法,包括基于空间时间线的方法、基于三维Z轴时间线的方法和将屏幕时间线与几何空间相关联的方法,最后进一步探讨了时空可视化方法在航天测控领域的应用。更多还原

【Abstract】 Visualization of multi-dimensional and spatio-temporal data is an interested issue in the domain of information visualization.Firstly,the definition and the components of spatial-temporal data were analyzed.Then by introducing time into the spatial model,an event based spatial-temporal data model was discussed.Based on the spatial-temporal data model,a series of spatio-temporal data visualization approaches were proposed,including spatial timelines approach,3D Z-axis timelines approach and an approach that connect 2D timelines in screen space to locations marked in the 3-D terrain representation.Finally,the use of these methods in aerospace TT&C system was discussed.更多还原