摘要
为解决森林生态系统三维褶皱指数计算的灵活性差、效率低和准确率不高的问题,根据三维褶皱指数的数据计算模型和Delaunay三角网面积的相关性,详细阐述了利用三角网生长法构造Delaunay三角网的算法,采用主流前端框架实现了三维褶皱指数计算系统。通过在页面上导入的制式Excel表格数据,系统可以自动绘制出Delaunay三角网,并结合输入的长宽信息,自动计算出相应的三维褶皱指数,从而对该森林生态系统结构的稳定性进行评价。
In order to solve the problem of poor flexibility,low efficiency and low accuracy in the calculation of the three-dimensional pleat index of forest ecosystem,according to the correlation between the data model of 3D pleat index and the area of Delaunay triangulation,the algorithm of constructing Delaunay triangulation by triangulation is described in detail.Three-dimensional pleat index calculation system is realized by using mainstream front-end frameworks.Based on the Excel spreadsheet data imported on the page,the system can automatically draw out the triangulation network and combine the input length-width information to automatically calculate the corresponding three-dimensional pleat index,so as to evaluate the stability of the system structure of the forest.
作者
王春玲
陈旭
张振明
余新晓
WANG Chun-ling;ZHANG Zhen-ming;YU Xin-xiao;CHEN Xu(College of Information/Beijing Forestry University,Beijing 100083,China;College of Nature Reserves/Beijing Forestry University,Beijing 100083,China;College of Water and Soil Conservation/Beijing Forestry University,Beijing 100083,China)
出处
《山东农业大学学报（自然科学版）》
CSCD
北大核心
2018年第1期97-102,共6页
Journal of Shandong Agricultural University：Natural Science Edition
基金
国家科技支撑计划课题:"三北"地区防护林体系结构定向调控技术研究与示范(2015BAD07B03)
