期刊论文

Visualization Simulation Technique of Stand Structure Adjustment Based on 3D Virtual Environment

中文

林业科学研究

1001-1498

2016

29

6

890-895

10.13275/j.cnki.lykxyj.2016.06.014

中央级公益性科研院所基本科研业务费专项资金（IFRIT201503） 国家自然科学基金（31170590） “十二五”国家863计划课题（2012AA102002）

本校为第一机构

[目的]以真实林分三维场景为模型,结合计算机虚拟现实技术,实现对真实林分结构的调整优化可视化模拟。[方法]以湖南攸县黄丰桥国有林场杉木与鹅掌楸人工混交林为研究对象,采用可视化模拟技术,基于三维虚拟环境建立林分结构调整可视化模拟系统,实现对林分结构的优化调整进行可视化模拟。通过对林分的角尺度、大小比、混交度、开阔比等结构的计算分析,结合公告板显示技术和射线查询算法,在MOGRE构建的林分三维场景中对林分结构调整过程进行可视化模拟。[结果]样地林分结构经过调整后,平均树高由12.8 m变成13.6 m,平均胸径由17.1 cm变成18.6 cm;林分平均角尺度由0.449变为0.481,分布格局由调整前的...

Objective: To realize optimal visual adjustment of real stand structure based on the modeling of 3D stand scenes, which adopt the technology of visual simulation. Methods: Taking the Cunninghamia lanceolata and Liriodendron chinense mixed plantation planted in the Huangfengqiao State-owned Forest Farm, Youxian County, Hu'nan Province were used as samples, the virtual simulation adjustment system was developed by virtual simulation technique, based on the 3D virtual environment. By calculating and analysis of stand angle scale, size ratio, mingl...