以三维实体模型为基础,提出了三维地层实体模型,给出了三维实体地层模型的体系数据结构和几何拓扑结构,完整描述了三维地层模型。给出了地层模型的构造过程,并讨论了地层缺失、倒转等的特殊地质状况的构模处理方法。三维地层实体模型是完整,全面的地层模型,比基于多层网格和三棱柱体元的地层模型具有更多的优点。
This paper describes a solid-oriented 3D strata model base on solid model, and presents the system data structure of it. The model describes the 3D strata integrally. The procedure of the model construction is presented and the strategy of dealing with stratum absence and stratum inversion are discussed. Solid-oriented 3D strata model is superior to other models.