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Constructive Solid Geometry

Aliases: CSG

Keywords: volumetric representation

Categories: Vision


Author(s): H.W. Hughes

Constructive solid geometry is the volumetric representation of objects using compositions of simple solids. Usually the solids are simple cuboids, cylinders, cones or spheres with an arbitrary scale. These undergo rigid transformations in space before being combined using the set operations. Complex shapes are constructed by combining the basic solids using the AND and OR operations while vacancies or holes are formed using the NOT operation to `bore out' the required shape. These operations reflect the way in which the object being modelled was originally constructed. See also Generalised Cylinders and Superquadrics.


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