基于OpenGL的地下管线三维缓冲分析算法研究及应用  

Application of Three Dimensional Buffer of Underground 3D Pipeline Based on OpenGL

作　　者：蔡振锋[1] 密长林[1] 王荣华[1] 刘荔[1] 张登峰[1] CAI Zhenfeng MI Changlin WANG Ronghua LIU Li ZHANG Dengfeng(Linyi Bureau of Land and Resources,Shandong Linyi 27600, Chin)

机构地区：[1]临沂市国土资源局,山东临沂276000

出　　处：《山东国土资源》2016年第9期60-64,共5页Shandong Land and Resources

摘　　要：三维空间关系比二维要复杂得多,它们的缓冲分析功能也多是基于二维数据运算,基本没有实现构建管线实体的三维缓冲体,非真正意义上的三维缓冲分析。该文采用断面与体面三角剖分拟合的方法,基于OpenGL构建了管线实体的点、线、体的三维缓冲体模型,实现了管线实体的缓冲体分析,验证了缓冲体分析算法的有效性和正确性。Three - dimensional relationship is much more complex than two - dimensional. The buffer analy- sis of their functions is also operated based on two- dimensional datas.3D buffer pipeline construction has not been realized entirely. It is not real analysis of 3D buffer. In this paper, by using the method of cross section and decent triangulation fitting, 3D model including buffer pipeline point, line and body has been constructed based on OpenGL. It has realized the analysis on pipeline buffer entity, and verified the cor- rectness and effectiveness of buffer analysis algorithm.

关 键 词：缓冲分析 缓冲体 三维可视化 地下管线 

分 类 号：P208[天文地球—地图制图学与地理信息工程]