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Extracting contour lines from a hierarchical surface model
Author(s) -
Floriani Leila,
Mirra Daniela,
Puppo Enrico
Publication year - 1993
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/1467-8659.1230249
Subject(s) - surface (topology) , triangulated irregular network , representation (politics) , computer science , piecewise , contour line , triangulation , domain (mathematical analysis) , algorithm , artificial intelligence , pattern recognition (psychology) , mathematics , geometry , geography , cartography , mathematical analysis , terrain , politics , political science , law
The Hierarchical Triangulated Irregular Network (HTIN) is a structure for representing 2½‐dimensional surfaces at different levels of detail through piecewise‐linear approximations based on triangulations of the surface domain. In this paper, we present two algorithms that allow extracting a representation of the surface and contour lines at a given level of detail, directly from the HTIN.