结合力场的双尺度自动机  

Combine dual scale automata with force field

作　　者：何振峰[1] 

机构地区：[1]福州大学数学与计算机学院,福建福州350002

出　　处：《农业网络信息》2008年第9期134-137,共4页Agriculture Network Information

摘　　要：双尺度自动机定义了植物的发生过程,但没有描述外界作用的影响机制,不能为植物的多数动态行为建模。本文引入力场,分析了力场中单根树枝的力平衡情况,给出了计算扭曲的公式。进一步给出了力场对整棵植株的作用机制,即利用双尺度自动机所发生植物所具有的天然层次性,基于主干受外力的影响较小的特点,先主干、后侧枝地反复分析各根树枝的扭曲情况,建立起外界综合影响的模型。最后给出了不同强度风对树的影响效果。Dual Scale Automata （DSA） defined the process of plant growth. Without an effect mechanism for outer influence, DSA cannot be utilized in the modeling most of the dynamic behavior of a plant. In this paper, force field（FF） is introduced, the balance for a single branch in a FF is analyzed, a formula to compute the distortion is presented. The influence of the FF on the whole plant is also analyzed, the natural hierarchy of the plant generated by DSA is utilized, as main trunk is less influenced by outer force, we analyzed the distortion for branches according the sequence of ＂first trunk later branch＂. So the synthetic of the outer force influence is presented. At last, the influence of different scale of wind force to a plant is presented.

关 键 词：双尺度自动机 力场 虚拟植物 

分 类 号：TP399[自动化与计算机技术—计算机应用技术]