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Minimal rational parametrizations of canal surfaces

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It is well known that canal surfaces defined by a rational spine curve and a rational radius function are rational. The aim of the present paper is to construct a rational parameterization of low degree. The author uses the generalized stereographic projection in order to transform the problem to a parameterization problem for ruled surfaces. Two problems are discussed: parameterization with boundary conditions (design of canal surfaces with two curves on it, as is the case for rolling ball blends) and parameterization without boundary conditions.

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Krasauskas, R. Minimal rational parametrizations of canal surfaces. Computing 79, 281–290 (2007). https://doi.org/10.1007/s00607-006-0204-0

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  • DOI: https://doi.org/10.1007/s00607-006-0204-0

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