A More Expressive 3D Region Connection Calculus

Abstract

Spatial qualitative analysis in 3D provides engineers with the ability to visually evaluate interference between parts, complicated geometric features, required tolerances, mechanism motion, and various aspects of assembly structure. Yet, despite the fact that 3D technology has been well developed for several years, many mechanical engineering designers currently do not use 3D CAD technology, and research in qualitative spatial reasoning continues to focus on 2D perspectives of 3D objects. in part, this is due to human cognitive limitations and the increased computational complexity of 3D modeling. However, given the greater wealth of information that can be obtained when additional dimensions are considered, and the enormous amount of 3D image data that are available, research efforts in this area should continue. Herein we present an extension of our previous work to combine quantitative and qualitative reasoning in 3D. the enhanced model is more expressive in that it now distinguishes several types of obscuration. Further, it differs from other region connection calculi used for qualitative spatial reasoning in that it determines the composite (topological plus obscuration) relation between two objects in 3D, not 2D.

Department(s)

Computer Science

Keywords and Phrases

3D; Qualitative spatial reasoning; Region connection calculus

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 Curran Associates, Inc., All rights reserved.

Publication Date

01 Jan 2011

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