基于时控L系统的虚拟植物生长三维结构模型

Three-dimensional Structure Model of Virtual Plant Growth Based on Possession in L-system

表现出植物生长过程的连续性,有效地描述植物根与冠两者间在生长速度上的关系,对虚拟植物生长模型研究有重要意义。为此,用时控L系统来描述植物的拓扑结构以及生长连续性的条件,依据异速生长模型和植物生长函数描述植物根与冠的生长关系,构建了基于时控L系统的虚拟植物生长三维结构模型。同时,通过对PlantVR平台的植物生长构建规则进行改进,实现了该模型在此平台上的仿真。仿真实验表明:该模型能够清晰地表现植物生长过程的连续性,有效地描述植物根与冠两者间在生长速度上的关系,并对植物生长可视化有一定的借鉴意义。

In order to display the continuity of the process of plant growth, and to effectively describe the relations in the growth speed between root and crown of plants. The authors pro posed a three-dimensional structure model method of virtual plant growth based on possession in L-system, take the method a simple simulation. First, the method w as used to possession in L-system to describe the topological structure of plants and continuous conditions of growth, the model of allometric growth will be used to establish the link between root and crown of plants, then combination of plant growth function, improvement construction rules of plant growth for the PlantVR platform. This method approach integ rated many theory and method of virtual plant growth model, the experiment shows that this method can clearly display the continuity of plant growth, effectively describe the relations in growth speed between ground and underground parts of plants, and it provides some valuable references for visualization plant growth.