马尾松的形态结构分析与三维可视化

Pinus Massoniana Morphological Architecture Analysis and 3D Visualization

通过对漳平五一国有林场马尾松实验林的实地调查和测量,分析其形态结构特征和生长规律,提取树木的形态结构特征几何参数和生长规则;借鉴和融合了多面体和参数化过程建模方法,以VC++为开发工具,OpenGL为图形平台,实现了基于马尾松形态结构特征的交互式参数化建模工具;模拟了马尾松不同生长发育时期的植株地上部分三维形态结构;根据样地树木的分布规律,把树木模型“种植”到数字地形模型(DEM)上,构建了虚拟样地的三维场景,逼真再现了样地马尾松的景观。

The Pinus Massoniana morphological characteristic was investigated in Wuyi Tentative Plantation, Zhangping City, Fujian Province, China. Pinus Massoniana architecture and growth law were analyzed, and Pinus Massoniana architecture parameters and growth rules were found out. Combined with polyhedron geometric modeling and parameterized procedural modeling, implementation of the interactive modeling tool was written in VC++, using OpenGL libraries, by which the different-age Pinus Massoniana were modeled based on the morphological characteristics, constructing tree morphological architecture above ground. At the same time, 3-D Pinus Massoniana scene was constructed by populating tree models in the digital terrain model (DEM). The tree distribution is according the plant intensity. The 3-D scene walk-through brings us realistic Pinus Massoniana Tentative Plantation.