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MODELLING FOR DIGITAL TERRAIN AND LANDSCAPE VISUALISATION
Author(s) -
Kennie T. J. M.,
McLaren R. A.
Publication year - 1988
Publication title -
the photogrammetric record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.638
H-Index - 51
eISSN - 1477-9730
pISSN - 0031-868X
DOI - 10.1111/j.1477-9730.1988.tb00626.x
Subject(s) - terrain , visualization , computer science , photogrammetry , scale (ratio) , computer graphics , computer graphics (images) , field (mathematics) , process (computing) , remote sensing , artificial intelligence , geography , cartography , mathematics , pure mathematics , operating system
Methods of creating digital terrain and landscape models for regional and site specific visualisations are described. A number of alternative approaches are discussed and their relative accuracies are considered. This is followed by a review of the computer graphics procedures which can be used to render such models. Particular attention is directed towards methods for depth cueing, hidden surface removal, shading and texturing. The effects of the atmosphere and methods of producing shadows are also examined. The paper then presents varied applications of such visualisations, including small scale, regional examples and large scale, site specific applications. In conclusion, the role of photogrammetry in the process of visualisation is assessed and possible future developments in this field are identified.