摘要： 树木建模是构建虚拟森林景观的主要环节，也是三维林业地理信息系统的基础。该文提出一种形态结构特征约束下的树木参数化建模方法，通过引进Bezier曲线控制树干以及树枝形状，并以荔枝树和马尾松为例对该方法进行设计与实现。实验结果表明，该方法能有效提高树木建模过程中的交互能力，较好地突出了树木的形态结构特征。

关键词: 树模型, Beizier曲线, 林业地理信息系统, 树木形态结构特征

Abstract: Tree modeling is the key work of constructing the virtual forest landscape, and is also the basic of 3D forestry Geographic Information System(GIS). A tree parameterized modeling method under constraint of morphological characters is presented, in which the shape of truck and branch is controlled by introducing Bezier curve. This modeling method is designed and implemented in the case of lichee tree and redpine. Experimental results show this modeling method can improve the interactive ability in the process of tree modeling effectively, and reflect the morphological characters of trees better.

Key words: tree model, Bezier curve, forestry Geographic Information System(GIS), tree morphological characters

中图分类号: 

• TP391.9