Results 11 to 20 of about 917 (180)
Interactive rendering of NURBS surfaces [PDF]
Computer-Aided Design, 2014 [Resumo] As superficies NURBS (Non-uniform rational B-splines) son unhas das primitivas más empregadas no modelado de alta calidade nas ferramentas CAD/CAM e o software gráfico. Dado que a avaliación directa de superficies NURBS na GPU é unha tarefa altamente complexa, a aproximación máis común para o render de NURBS é a súa conversión previa na CPU en
Raquel Concheiro +3 more
openaire +2 more sources
Polar NURBS Surface with Curvature Continuity [PDF]
Computer Graphics Forum, 2013 AbstractPolar NURBS surface is a kind of periodic NURBS surface, one boundary of which shrinks to a degenerate polar point. The specific topology of its control‐point mesh offers the ability to represent a cap‐like surface, which is common in geometric modeling.
Shi, Kan-Le +4 more
openaire +3 more sources
Dianzi Jishu Yingyong, 2018 Although the uniform theory of diffraction(UTD) could be theoretically applied to arbitrarily-shaped convex objects modeled by non-uniform rational b-splines(NURBS), one of the great challenges in calculation of the UTD surface diffracted fields is the ...
Cao Tuo, Fu Song, He Siyuan
doaj +1 more source
NURBS-Python: An open-source object-oriented NURBS modeling framework in Python
SoftwareX, 2019 We introduce NURBS-Python, an object-oriented, open-source, Pure Python NURBS evaluation library with no external dependencies. The library is capable of evaluating single or multiple NURBS curves and surfaces, provides a customizable visualization ...
Onur Rauf Bingol, Adarsh Krishnamurthy
doaj +1 more source
Generating NURBS cladding and structures with parametric programming and BIM
PARC: Pesquisa em Arquitetura e Construção, 2020 The process of designing and building curvilinear architectures is still challenging. The use of multiple applications with distinctive design paradigms are unlikely to disappear. The interoperability used here was not only the conventional one.
Neander Furtado Silva +2 more
doaj +1 more source
Machines, 2023 Dual NURBS interpolation has been proven an essential technique for high-speed precision machining of complex surfaces. The solution of rotation angles and their derivatives is the basis of kinematic transformation and feedrate optimization in dual NURBS
Pengpeng Sun +4 more
doaj +1 more source
The multivariate quartic NURBS surfaces
Journal of Computational and Applied Mathematics, 2004 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Li, Chong-Jun, Wang, Ren-Hong
openaire +1 more source
An Isogeometric Analysis Approach to Kinematics of Spatial Rigid Multibody Systems with Imperfect Joints [PDF]
Modeling, Identification and Control, 2020 This paper proposes a novel generic methodology for kinematics of spatial rigid-multibody systems with and without lubricated joints. In this method CAD surface representations in the form of non-uniform rational B-splines (NURBS) are used to address the
Remzija Cerimagic +3 more
doaj +1 more source
NURBS approximation of surface/surface intersection curves
Advances in Computational Mathematics, 1994 To compute parametric representations for non-parametric algebraic intersection curves requires approximation. In this paper, the authors present algorithms to construct a piecewise rational \(B\)-spline approximation to a space curve, which comes from the intersection of two implicitly defined surfaces, or the intersection of two parametric defined ...
Chandrajit L. Bajaj, Guoliang Xu
openaire +2 more sources
International Journal of Antennas and Propagation, 2015 Although the uniform theory of diffraction (UTD) could be theoretically applied to arbitrarilyshaped convex objects modeled by nonuniform rational B-splines (NURBS), one of the great challenges in calculation of the UTD surface diffracted fields is the ...
Song Fu +4 more
doaj +1 more source