Solvability of Hermite interpolation by spatial Pythagorean-hodograph cubics and its selection scheme

2010 ◽  
Vol 27 (2) ◽  
pp. 138-149 ◽  
Author(s):  
Song-Hwa Kwon
2005 ◽  
Vol 22 (4) ◽  
pp. 325-352 ◽  
Author(s):  
Francesca Pelosi ◽  
Rida T. Farouki ◽  
Carla Manni ◽  
Alessandra Sestini

2007 ◽  
Vol 23 (1-2) ◽  
pp. 73-86 ◽  
Author(s):  
Gwang-Il Kim ◽  
Jae-Hoon Kong ◽  
Sunhong Lee

2020 ◽  
Vol 78 ◽  
pp. 101827 ◽  
Author(s):  
Chang Yong Han ◽  
Hwan Pyo Moon ◽  
Song-Hwa Kwon

2006 ◽  
Vol 23 (5) ◽  
pp. 401-418 ◽  
Author(s):  
Jiří Kosinka ◽  
Bert Jüttler

2021 ◽  
Vol 7 (6) ◽  
pp. 6317-6331
Author(s):  
Jie Li ◽  
Yaoyao Tu ◽  
Shilong Fei

In order to solve the deficiency of Hermite interpolation spline with second-order elliptic variation in shape control and continuity, c-2 continuous cubic Hermite interpolation spline with second-order elliptic variation was designed. A set of cubic Hermite basis functions with two parameters was constructed. According to this set of basis functions, the three-order Hermite interpolation spline curves were defined in segments 02, and the parameter selection scheme was discussed. The corresponding cubic Hermite interpolation spline function was studied, and the method to determine the residual term and the best interpolation function was given. The results of an example show that when the interpolation conditions remain unchanged, the cubic Hermite interpolation spline curves not only reach 02 continuity, but also can use the parameters to control the shape of the curves locally or globally. By determining the best values of the parameters, the cubic Hermite interpolation spline function can get a better interpolation effect, and the smoothness of the interpolation spline curve is the best.


2012 ◽  
Vol 2012 ◽  
pp. 1-15 ◽  
Author(s):  
Sunhong Lee ◽  
Hyun Chol Lee ◽  
Mi Ran Lee ◽  
Seungpil Jeong ◽  
Gwang-Il Kim

We present an algorithm forC1Hermite interpolation using Möbius transformations of planar polynomial Pythagoreanhodograph (PH) cubics. In general, with PH cubics, we cannot solveC1Hermite interpolation problems, since their lack of parameters makes the problems overdetermined. In this paper, we show that, for each Möbius transformation, we can introduce anextra parameterdetermined by the transformation, with which we can reduce them to the problems determining PH cubics in the complex planeℂ. Möbius transformations preserve the PH property of PH curves and are biholomorphic. Thus the interpolants obtained by this algorithm are also PH and preserve the topology of PH cubics. We present a condition to be met by a Hermite dataset, in order for the corresponding interpolant to be simple or to be a loop. We demonstrate the improved stability of these new interpolants compared with PH quintics.


2007 ◽  
Vol 76 (259) ◽  
pp. 1373-1392 ◽  
Author(s):  
Zbyněk Šír ◽  
Bert Jüttler

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