Název: Hermite interpolation by piecewise polynomial surfaces with polynomial area element
Autoři: Bizzarri, Michal
Lávička, Miroslav
Šír, Zbyněk
Vršek, Jan
Citace zdrojového dokumentu: BIZZARRI, Michal, LÁVIČKA, Miroslav, ŠÍR, Zbyněk, VRŠEK, Jan. Hermite interpolation by piecewise polynomial surfaces with polynomial area element. Compter aided geomeric design, 2017, roč. 51, č. February, s. 30-47. ISSN 0167-8396.
Datum vydání: 2017
Nakladatel: Elsevier
Typ dokumentu: článek
article
URI: http://hdl.handle.net/11025/26124
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https://www.scopus.com/record/display.uri?origin=resultslist&eid=2-s2.0-85014455183
000398755900003
2-s2.0-85014455183
ISSN: 0167-8396
Klíčová slova: Hermitova interpolace;PN povrchy;MOS povrchy;polynomický prvek
Klíčová slova v dalším jazyce: Hermite interpolation;PN surfaces;MOS surfaces;Polynomial area element
Abstrakt v dalším jazyce: This paper is devoted to the construction of polynomial 2-surfaces which possess a polynomial area element. In particular we study these surfaces in the Euclidean space R^3 (where they are equivalent to the PN surfaces) and in the Minkowski space R^{3,1} (where they provide the MOS surfaces). We show generally in real vector spaces of any dimension equipped with a symmetric bilinear form that the Gram determinant of a parametric set of subspaces is a perfect square if and only if the Gram determinant of its orthogonal complement is a perfect square. Consequently the polynomial surfaces of a given degree with polynomial area element can be constructed from the prescribed normal fields solving a system of linear equations. The degree of the constructed surface depending on the degree and the properties of the prescribed normal field is investigated and discussed. We use the presented approach to interpolate a network of points and associated normals with piecewise polynomial surfaces with polynomial area element and demonstrate our method on a number of examples (constructions of quadrilateral as well as triangular patches).
Práva: Plný text není přístupný.
© Elsevier
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Preprinty / Preprints (KMA)
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