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- W4300832816 abstract "It is still a challenging task of today to recognize the type of a given algebraic surface which is described only by its implicit representation. In~this paper we will investigate in more detail the case of canal surfaces that are often used in geometric modelling, Computer-Aided Design and technical practice (e.g. as blending surfaces smoothly joining two parts with circular ends). It is known that if the squared medial axis transform is a rational curve then so is also the corresponding surface. However, starting from a polynomial it is not known how to decide if the corresponding algebraic surface is rational canal surface or not. Our goal is to formulate a simple and efficient algorithm whose input is a~polynomial with the coefficients from some subfield of real numbers and the output is the answer whether the surface is a rational canal surface. In the affirmative case we also compute a rational parameterization of the squared medial axis transform which can be then used for finding a rational parameterization of the implicitly given canal surface." @default.
- W4300832816 created "2022-10-04" @default.
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- W4300832816 date "2014-10-14" @default.
- W4300832816 modified "2023-10-16" @default.
- W4300832816 title "Recognizing implicitly given rational canal surfaces" @default.
- W4300832816 doi "https://doi.org/10.48550/arxiv.1410.3628" @default.
- W4300832816 hasPublicationYear "2014" @default.
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