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Multiscale Terrain and Topographic Modelling with the Implicit TIN
Author(s) -
Kidner David B.,
Ware J. Mark,
Sparkes Andrew J.,
Jones Christopher B.
Publication year - 2000
Publication title -
transactions in gis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.721
H-Index - 63
eISSN - 1467-9671
pISSN - 1361-1682
DOI - 10.1111/1467-9671.00062
Subject(s) - delaunay triangulation , terrain , triangulated irregular network , computer science , triangulation , scheme (mathematics) , overlay , feature (linguistics) , variety (cybernetics) , range (aeronautics) , raised relief map , data mining , artificial intelligence , algorithm , geography , cartography , mathematics , engineering , mathematical analysis , linguistics , philosophy , aerospace engineering , programming language
The Multiscale Implicit Triangulated Irregular Network (TIN) provides a storage and access scheme for generating triangulated terrain models that adapt their content and level of detail to the requirements of the user. The scheme combines storage of data representing the terrain surface, and two and three dimensional terrain features, with a retrieval and triangulation procedure that generates a constrained Delaunay triangulation at run time. The feature content and level of detail may be specified by the user, thereby providing a flexible facility that adapts to the requirements of a wide range of applications, whether global or local, exploratory or precise. This paper provides an overview of the scheme and illustrates its application for a variety of queries requiring multiscale representations.