Abstract
This paper presents a referential scheme for representing and identifying the spatial extent of physical entities of constructed facilities, such as buildings and offshore structures. Using the basic operations of a non-manifold geometric modeler, a set of high-level algebraic operations is defined. The scheme and its algebra are used for modeling the spatial attributes of a facility entity at two levels: primary and secondary. The primary representation uniquely captures an entity's spatial attributes at the “skeletal” level and is used mainly for identifying discipline-independent topological relationships of that entity with others. Secondary representations, on the other hand, are used to provide an entity's discipline-specific geometric attributes. The topological relationships and geometric attributes of facility entities thus need not be explicitly stored, but can be computed on demand by the underlying non-manifold modeler.
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Zamanian, M.K., Fenves, S.J. A referential scheme for modeling and identifying spatial attributes of entities in constructed facilities. Research in Engineering Design 6, 142–168 (1994). https://doi.org/10.1007/BF01607276
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DOI: https://doi.org/10.1007/BF01607276