Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/75289
Title: TIN meets CAD - extending the TIN concept in GIS
Authors: Tse, OCR 
Gold, CM 
Issue Date: 2002
Publisher: Springer
Source: Lecture notes in computer science (including subseries Lecture notes in artificial intelligence and lecture notes in bioinformatics), 2002, v. 2331 LNCS, no. PART 3, p. 135-143 How to cite?
Journal: Lecture notes in computer science (including subseries Lecture notes in artificial intelligence and lecture notes in bioinformatics) 
Abstract: Extending the current "2.5D" terrain model is a necessary development in GIS. Existing 2D surface information must be extended to 3D, while trying to preserve the topological integrity. Computer-Aided Design (CAD) on the other hand is often fully 3D, which may be excessive for our "extended 2D" mapping needs. We have used the "boundary representation" (b-rep) design from CAD systems, based on manifold models, to address these problems. Triangulated Irregular Network (TIN) models of the terrain surface are well known in Geographic Information System (GIS), but are unable to represent cliffs, caves or holes, which are required to represent complex buildings. The simple TIN b-rep structures may be extended using formal Euler Operators to add simple CAD functionality while guaranteeing the connectivity required for terrain modelling. We believe this provides a simple and reliable extension that is sufficient for many applications.
Description: International Conference on Computational Science, ICCS 2002, Amsterdam, 21-24 April 2002
URI: http://hdl.handle.net/10397/75289
ISBN: 3540435948
9783540435945
ISSN: 0302-9743
EISSN: 1611-3349
Appears in Collections:Conference Paper

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