Along with the classical requirements on B-splines bases (minimal support, positivity, normalization) we show that it is natural to introduce an additional “end point property”. When dealing with multiple knots, this additional property is exactly the appropriate requirement to obtain the poles of nondegenerate splines as intersections of osculating flats at consecutive knots.
Mots clés : geometric design, B-spline basis, blossoming, osculating flats
@article{M2AN_2002__36_6_1177_0, author = {Mazure, Marie-Laurence}, title = {B-spline bases and osculating flats : one result of {H.-P.} {Seidel} revisited}, journal = {ESAIM: Mod\'elisation math\'ematique et analyse num\'erique}, pages = {1177--1186}, publisher = {EDP-Sciences}, volume = {36}, number = {6}, year = {2002}, doi = {10.1051/m2an:2003010}, mrnumber = {1958664}, zbl = {1027.65020}, language = {en}, url = {http://www.numdam.org/articles/10.1051/m2an:2003010/} }
TY - JOUR AU - Mazure, Marie-Laurence TI - B-spline bases and osculating flats : one result of H.-P. Seidel revisited JO - ESAIM: Modélisation mathématique et analyse numérique PY - 2002 SP - 1177 EP - 1186 VL - 36 IS - 6 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/m2an:2003010/ DO - 10.1051/m2an:2003010 LA - en ID - M2AN_2002__36_6_1177_0 ER -
%0 Journal Article %A Mazure, Marie-Laurence %T B-spline bases and osculating flats : one result of H.-P. Seidel revisited %J ESAIM: Modélisation mathématique et analyse numérique %D 2002 %P 1177-1186 %V 36 %N 6 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/m2an:2003010/ %R 10.1051/m2an:2003010 %G en %F M2AN_2002__36_6_1177_0
Mazure, Marie-Laurence. B-spline bases and osculating flats : one result of H.-P. Seidel revisited. ESAIM: Modélisation mathématique et analyse numérique, Tome 36 (2002) no. 6, pp. 1177-1186. doi : 10.1051/m2an:2003010. http://www.numdam.org/articles/10.1051/m2an:2003010/
[1] Piecewise polynomial spaces and geometric continuity of curves. Numer. Math. 54 (1988) 319-337. | Zbl
and ,[2] Properties of -splines. J. Approx. Theory 44 (1985) 132-153. | Zbl
,[3] Blossoming: a geometrical approach. Constr. Approx. 15 (1999) 33-68. | Zbl
,[4] Quasi-Chebyshev splines with connexion matrices. Application to variable degree polynomial splines. Comput. Aided Geom. Design 18 (2001) 287-298. | Zbl
,[5] The geometry of Tchebycheffian splines. Comput. Aided Geom. Design 10 (1993) 181-210. | Zbl
,[6] Blossoms are polar forms. Comput. Aided Geom. Design 6 (1989) 323-358. | Zbl
,[7] New algorithms and techniques for computing with geometrically continuous spline curves of arbitrary degree. RAIRO Modél. Math. Anal. Numér. 26 (1992) 149-176. | Numdam | Zbl
,[8] Polar forms for geometrically continuous spline curves of arbitrary degree. ACM Trans. Graphics 12 (1993) 1-34. | Zbl
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