时空地图与视觉变量

时空地图是显示随时间变化所历过程的地图，既可能是静态的也可能是动态的。本文分析了时空地图的表现形式，对其视觉变量作了初步探讨，认为视觉变量应当由６个静态变量和３个动态变量构成。

Spatio-temporal Maps and Visual Variables

Spatio-temporal maps are maps displaying process changing over time. they can be both static as well as animated maps. The paper analyses ways in which the spatio-temporal maps are displayed. and studies the visual variables in spatio- temporal maps. the author thinks that visual variables would conclude dynamic vaiables in animated maps.