Conceptual design, data model and key techniques of 3D Assistant

摘要：

Conceptual design, data model and key techniques of Geo-engineer 3D assistant, an underground 3D GIS oriented to geology and mine application, were discussed. In particular, the importance of high-order smoothing triangular pieces to surfaces fine expression in geological modeling was emphasized. The contour mode is the most favorite mode of the three modes about surface expression: DEM, TIN and contour. Topology in underground 3D modeling with CAGD was compared. From the view of boundary and coboundary, which is soul of IS 19107 (Geographic information spatial schema), 3D underground topology was re-examined.

关键词： 3D assistant true 3D GIS fine expression of surface contour mode 3D topology

作者: LI Qing-yuan ZHANG Xuan JIN Yang ZHOU Hui WANG Qian-jin WEI Zhan-yin

作者单位: Key Laboratory of Geo-Informatics, Chinese Academy of Surveying and Mapping, Beijing 100830, China School of Geo-Science and Surveying Engineering, China University of Mining and Technology,Beijing 1 School of Geomatics, Liaoning Technical University, Fuxin 123000, China

会议类型: 国际会议

会议名称: 2011年国际矿山测量学术讨论会

会议地点: 河南焦作

会议语种:英文

页码: 692-698

在线出版日期: 2011-06-18（万方平台首次上网日期，不代表论文的发表时间）