以杉木为例,采用从可视化模拟角度设计的调查参数调查杉木形态结构,根据实际调查数据对杉木形态结构特征进行了分析。结合生长曲线控制下的迭代函数系统方法,采用面向对象的设计方法,根据DIRECTX9.0提供的API及模型渲染技术,在.NET和DIRECTX9.0平台上,使用C#语言建立了杉木单木生长可视化模拟系统,实现了单株杉木静态和动态的三维可视化模拟。

Based on plant architecture,this paper analyzes the morphological structure of four Cunninghamia lanceolata trees in different ages using statistical method .The results indicate that: the bifurcation ratios increases with the age; the branching angles of primary branches are mainly distributed from 50° to 100° while the secondary branches are mainly distributed from 50° to 80°; the azimuth of primary branches follows uniform distribution and the secondary branches mostly distribute in horizontal direction; Distance from a branch attachment region to its parent container has a good correlation with the branch length. Branch length has a great relevance to the number of sublevel branch.