期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2008
卷号：XXXVII Part B4
页码：343-348
出版社：Copernicus Publications
摘要：The key issue of 3D geology modeling is the 3D data model. Because of discontinuity, complexity and uncertainty of distribution of 3D geo-objects, some models only are suitable for regular, continuous and relatively simple spatial objects, and some are suitable for discontinue, complex and uncertain geo-objects, but some improvements on these models, such as, updating of model, maintenance of topological and seamless integration between models, are still to be made. The OO-Solid Model is an object-oriented 3D topologic data model based on component for geology modeling with fully considering the topological relations between geological objects and its geometric primitives. Comparatively, it accords with the actual requirements of three-dimensional geological modeling, but it has some defects, for example, the modeling sections are limited to the parallel and vertical section, still cannot adapt to nonparallel and folded sections, and don't fully consider the degradation of modeling primitives. These defects bring some negative effects on the integrality and effectiveness of organization of spatial data, spatial query, spatial analysis based on OO-Solid model. Aiming at the defects of the OO-Solid Model, OO-Solid model is modified. The component of this model is the basic element of the division of geological volumes. Primitives of OO-Solid Model are compartmentalized into node (cru-node, inner-node, isolated-node, reference-node, interpolated-node, and feature-node), arc (feature-line), polygon, component face (polygon face, component side-face, component up-down-face) and component. And conceptual model and logical model of OO-Solid model are redesigned. At last, data structure of OO-Solid model is designed. Above improvement not only benefits muti-source data compositing for modeling, upgrades auto-modeling, facilitates dynastic updating of geological model, also favors seamless integrating with other models, such as TIN
关键词：3D GIS; Data Model; Data Structure; Spatial Modeling; Geology
