三维体元拓扑数据模型的修正及其形式化描述

Rectification and Formal Description of 3D OO-solid Model

针对三维体元拓扑数据模型(OO-Solid Model)的不足,对模型的构模元素进行了修正。对模型的修正和重新设计不仅有利于利用多源数据构模,提高构模自动化程度,便于地质模型的动态更新,更有利于与其他模型(如TIN模型)的无缝集成。利用面向对象和集合相结合的方法,从拓扑学角度,对基本构模元素及模型表达的空间对象进行了严格定义和形式化描述。

The study of three dimensional geological modeling is a very important topic. Discussing the modeling principle and the advantages and disadvantages of 3D OO-solid model, primitives of OO-solid model, such as node （cru node, inner node, isolated-node, referencenode, interpolated-node, and feature-node）, arc（feature line）, polygon, region, component face（polygon face, component side face, component up-down face） and component, were modified. Conceptual model and logical model of OO solid model are redesigned. Above research not only benefits muti-source data modeling, upgrades auto-modeling, facilitates dynastic updating of geological model, also favors seamless integrating with other models, such as TIN. In addition, used the methods which integrated object-oriented with set, primitives of OO-solid model and the spatial objects, such as point, line, surface, volume which including simple volume, complex volume, composite volume, were strictly defined and formally described from the topology.