摘要： 针对大范围场景的植被实时虚拟可视化问题，提出一种在程序运行过程中实时生成各个体植被分布数据和属性数据的方法。该方法使用Wang Tiles和植被覆盖的地理信息系统数据。采用几何细节层次模型和基于纹理图像的方法对植被进行实时绘制。实验结果表明，该方法能在包含植被的大范围场景中取得较好的可视化效果，在场景漫游时可以保持交互的帧速率。

关键词: 植被可视化, 地理信息系统, Wang Tiles技术, 实时绘制

Abstract: Aiming at the problem of real-time virtual visualization of vegetation in large-scale scenes, this paper presents a method to generate distribution and attributes of individual plants at application runtime using Wang Tiles and vegetation coverage data from Geographic Information System(GIS). By utilizing geometry level-of-detail model and texture splatting, real-time rendering is achieved. Experimental results show that this method can visualize large-scale scenes with vegetation at interactive frame rate while moving through in virtual environment.

Key words: visualization of vegetation, Geographic Information System(GIS), Wang Tiles technique, real-time rendering

中图分类号: 

• TP75