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Three-Dimensional Modeling with Geoscientific Information Systems pp 145–157Cite as

Modeling Natural Objects Via Octrees

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Part of the book series: NATO ASI Series ((ASIC,volume 354))

Abstract

Abstract representations which can be suitably visualized as three-dimensional objects have been a central theme of research for more than one decade. Analytically-defined surfaces and compositions of elemental shapes such as sphere, cylinder, parallelepiped, cone and torus, have been successfully used to represent man-made objects, whose shape is, in general, fairly regular. Representation of natural objects — the parts of the human body, for instance —requires more sophisticated techniques,the most well-known of which is based on Generalized Cylinders. The author presents an alternate approach to modeling natural objects, based on the use of: (i) data acquired in Volume Representation, (ii)sample points gathered on the object’s surface, (iii) data acquired in Volume Representation in association with a surface representation entered interactively by the user. This modeling approach relies on a variety of graph-theory, computer graphics and computational geometry techniques, all implemented in an octree environment. Their software implementation is briefly described; three objects created with our graphics tools illustrate the potential of this approach.

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Author information

Authors and Affiliations

  1. Department of Computer Science, The University of Western Ontario, London, Ontario, N6A 5B7, Canada

    I. Gargantini

Authors
  1. I. Gargantini
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Editor information

Editors and Affiliations

  1. Department of Geology and Geological Engineering, Colorado School of Mines, Golden, Colorado, USA

    A. Keith Turner

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© 1992 Springer Science+Business Media Dordrecht

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Gargantini, I. (1992). Modeling Natural Objects Via Octrees. In: Turner, A.K. (eds) Three-Dimensional Modeling with Geoscientific Information Systems. NATO ASI Series, vol 354. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-2556-7_12

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  • DOI: https://doi.org/10.1007/978-94-011-2556-7_12

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-5128-6

  • Online ISBN: 978-94-011-2556-7

  • eBook Packages: Springer Book Archive

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