同济大学学报（自然科学版）2011，Vol.39Issue(12)：1871-1876,6.DOI:10.3969/j.issn.0253-374x.2011.12.026
基于参数L-系统的三维树木仿真
Three Dimensional Trees Emulation Based or Parametric L-system
摘要
Abstract
This paper describes a fast and efficient 3D method to emulate trees with parametric L-system. The emulation was performed in three stages. First, parametric L-system was employed to construct the initial skeleton of tree by analyzing the tree abstract model, and the tree skeleton was optimized by Hermite curve fitting. The second stage was 3D emulation of the tree. A 3D mesh model of the tree was reconstructed with the help of Frenet frame and the associated 3D geometric theory under the constraints of the optimized skeleton and branch radii generated by Parametric L-system. Finally the 3D model was completed in combination with the simplified model of leaves. Experimental results show that the proposed emulation method for 3D trees not only reduce the amount of tree model data effectively, but also can limberly emulate many kinds of trees models.关键词
轴型树/参数L-系统/Hermite曲线/真实感Key words
axial tree/parametric L-system/Hermite curve/reality分类
信息技术与安全科学引用本文复制引用
石银涛,程效军,张鸿飞..基于参数L-系统的三维树木仿真[J].同济大学学报（自然科学版）,2011,39(12):1871-1876,6.基金项目
国家自然科学基金(40971241) （40971241）
