基于OpenGL的单树可视化仿真研究:蒙古苏格兰松人工林

Lingbo Dong, Zhaogang Liu, Chao Li
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引用次数: 0

摘要

为了更清晰地展示其人工林中单株的形态特征,为教学和研究提供更多支持,本研究采用系统分析原理和数学建模技术,构建其人工林中单株的形态模型。在形态学数据定量分析的指导下,构建冠状结构模型。研究了不同器官的三维几何建模技术,并根据特征参数建立了器官的三维几何模型。通过对单个器官的装配,建立了个体树模型。以上研究为虚拟系统奠定了坚实的基础,借助vc++语言和OpenGL开发平台,实现生长机制与形态特征视觉表达的有机结合。此外,还提出了冠状结构模型与可视化有机结合的思路。系统由几何构造模块、冠模型模块、可视化模块、场景控制模块、两个数据库和人机界面组成。结果表明,该系统的操作完全能够基于实地测量数据或模型输出的参数,实现对人工林中单株蒙古苏格兰松形态特征的视觉表达。这种可视化不仅可以为森林经营可视化奠定坚实的基础,也可以为其他物种的可视化研究提供很好的参考。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Visual Simulation Study for an Individual Tree Based on OpenGL: Mongolian Scots Pine Plantations
For a clearer demonstration of the morphological characteristics of an individual Mongolian Scots Pine in its plantation and more supports for teaching as well as research, in this study, the system analysis principle and mathematical modeling techniques were employed to construct the morphology model of an individual Mongolian Scots Pine in its plantation. The crown structure model was constructed under the guidance of quantitative analysis of its morphology data. The 3-Dimensional (3-D) geometrical modeling technology of different organs was also investigated, and organ geometrical models were developed according to characteristic parameters. Moreover, individual tree model was built by means of assembling single organs. The studies above laid a solid foundation for a virtual system that, with the help of the developing platform of VC++ language and OpenGL, can realize the organic integration between the growth mechanism and the visual expression of morphological characteristics. In addition, it also showed the ideas of the organic integration between crown structure model and visualization. The system consists of geometric construction module, crown model module, visualization module, scene control module, two database, and human-machine interface. Operations of the system turned out to be fully capable of achieving the visual expression of the morphological characteristics of an individual Mongolian Scots Pine in its plantation based on the field measured data or the parameters which was outputted by the models. Not only can this visualization be a solid foundation for visualization of forest management, it can also become a nice reference for the visualization study of other species.
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