Research on dynamic updating of three dimensional geological modeling based on the OO-Solid model

• 来源期刊: 煤炭学报（英文版）
• 年，卷（期）: 2008,（3）
• 页码范围: 420-424
• 页数: 5页
• 语种: 英文

摘要

The dynamic updating of the model included: the change of space border, addi-tion and reduction of spatial component (disappearing, dividing and merging), the changeof the topological relationship and synchronous dynamic updating of database. Firstly,arming at the deficiency of OO-Solid model in the aspect of dynamic updating, modelingprimitives of OO-Solid model were modified. And then the algorithms of dynamic updatingof 3D geological model with the node data, line data or surface data change were dis-cussed. The core algorithms was done by establishing space index, following the way offacing the object from bottom to top, namely the dynamic updating from the node to arc,and then to polygon, then to the face of the component and finally to the geological object.The research has important theoretical and practical values in the field of three dimen-sional geological modeling and is significant in the field of mineral resources.