摘要
通过对地下水数值模拟的研究分析,抽象出空间类层次结构,并提出了基于属性关系的宏观拓扑结构和基于同构或异构几何模型关系的微观拓扑结构。可变三角化算法的设计能够生成有效的有限元网格模型,为地下水建模奠定了基础;同时,三维空间拾取技术提供了一个友好的人机图形交互环境。
Following the various complex condition of groundwater numerical simulation, a space class hierarchy is abstracted, and a novel approach to constructing a macro/micro-topology is also provided. The macro-topology is built based on the relation between attribute structures, while the micro-topology is for the relation between isomorphic or isomerous geometric models. An optional triangulation algorithm presented here can powerfully generate finite element meshes. The methods designed above can effectively construct groundwater modeling in 3D. In addition, a 3D picking tool has been developed in GSS software for a friendly graphic interface.
出处
《计算机工程》
CAS
CSCD
北大核心
2003年第6期69-70,190,共3页
Computer Engineering
基金
国土资源部科技专项课题(200010301-06)
华北平原地下水资源潜力调查研究项目(200112400011)
关键词
地下水资源
数值模拟
可视化设计
有限元
Finite element;Class hierarchy;Macro/Micro-topology;3D picking;Optional triangulation algorithm