Jezik: | Angleški jezik |
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Leto izida: | 2019 |
Tipologija: | 1.01 - Izvirni znanstveni članek |
Organizacija: | UL FMF - Fakulteta za matematiko in fiziko |
UDK: | 519.651 |
COBISS: | 18388057 |
ISSN: | 0377-0427 |
Št. ogledov: | 447 |
Št. prenosov: | 301 |
Ocena: | 0 (0 glasov) |
Metapodatki: |
Sekundarni jezik: | Slovenski jezik |
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Sekundarni naslov: | Splošen pristop k optimalni aproksimaciji krožnih lokov s parametričnimi polinomskimi krivuljami |
Sekundarni povzetek: | We propose a general framework for a geometric approximation of circular arcs by parametric polynomial curves. The approach is based on a constrained uniform approximation of an error function by scalar polynomials. The system of nonlinear equations for the unknown control points of the approximating polynomial given in the Bézier form is derived and a detailed analysis provided for some low degree cases which were not studied yet. At least for these cases the solutions can be, in principal, written in a closed form, and provide the best known approximants according to the simplified radial distance. A general conjecture on the optimality of the solution is stated and several numerical examples conforming theoretical results are given. |
Sekundarne ključne besede: | geometrijska interpolacija;krožni lok;parametrični polinom;Bézierjeva krivulja;optimalna aproksimacija; |
Strani: | str. 146-158 |
Zvezek: | ǂVol. ǂ345 |
Čas izdaje: | 2019 |
DOI: | 10.1016/j.cam.2018.06.020 |
ID: | 11807757 |