中文摘要：

针对现有三维地图在光照与阴影表达上存在的不足,从色彩学的角度探讨光照与阴影的颜色随时间和位置变化而变化的规律。基于空间认知习惯,对不同太阳高度角下光照与阴影的RGB值进行回归分析,建立一种简单可行的三维地图光影模型,为人们在使用已有三维建模软件或利用组件式技术开发三维地图可视化软件时提供依据,以增强三维地图的视觉表达效果。

英文摘要：

To the question of many disadvantages about the expression of light and shadow in the existing 3D map,the changing rules of the color of light and shadow along with time and position in terms of chromatology are discussed.Based on spatial cognition custom,the authors attempt to build a simple and feasible model of light and shadow in 3D map through the regression analysis of RGB value of light and shadow under different solar altitude.It provides a basis for using the existing 3D modeling software or developing the visualization software of 3D map by component technology,and strengthens the visual effect of 3D map.