Results 11 to 20 of about 1,153,922 (283)

Progressive surface modeling scheme from unorganised curves [PDF]

open access: yes, 2006
This paper presents a novel surface modelling scheme to construct a freeform surface progressively from unorganised curves representing the boundary and interior characteristic curves.
Wright, David   +3 more
core   +14 more sources

Smooth parametric surfaces and n-sided patches [PDF]

open access: yes, 1989
The theory of 'geometric continuity' within the subject of CAGD is reviewed. In particular, we are concerned with how parametric surface patches for CAGD can be pieced together to form a smooth Ck surface.
Gregory, JA, Lau, VKH, Zhou, J
core   +7 more sources

On-line segmentation of freehand sketches by knowledge-based nonlinear thresholding operations [PDF]

open access: yes, 2001
This paper describes an on-line procedure for segmenting freehand sketches into 2D primitives and smooth curves by knowledge-based nonlinear thresholding operations. Drawing position, direction, speed and acceleration information is used for establishing
Wright, David   +6 more
core   +7 more sources

Path Planning Based on Parametric Curves [PDF]

open access: yes, 2018
Parametric curves are extensively used in engineering. The most commonly used parametric curves are, Bézier, B-splines, (NURBSs), and rational Bézier.
Hilario Pérez, Lucia   +7 more
core   +1 more source

Curves with rational chord-length parametrization [PDF]

open access: yes, 2008
It has been recently proved that rational quadratic circles in standard Bezier form are parameterized by chord-length. If we consider that standard circles coincide with the isoparametric curves in a system of bipolar coordinates, this property comes as ...
Fernández Jambrina, Leonardo   +1 more
core   +1 more source

Symbolic parametrization of curves

open access: yesJournal of Symbolic Computation, 1991
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
J. Rafael Sendra, Franz Winkler 0001
openaire   +1 more source

Equiareal Parameterization of Triangular Bézier Surfaces

open access: yesMathematics, 2022
Parameterization is the key property of a parametric surface and significantly affects many kinds of applications. To improve the quality of parameterization, equiareal parameterization minimizes the equiareal energy, which is presented as a measure to ...
Jun Chen, Xiang Kong, Huixia Xu
doaj   +1 more source

A gymkhana to discover and generate curves in a cooperative work

open access: yesMultidisciplinary Journal for Education, Social and Technological Sciences, 2014
The student who access the University understands a curve as a function represented by an equality involving the Cartesian variables x and y. But he does not know another great set of curves such as those described by parametric equations and polar ...
Anna Vidal Meló   +3 more
doaj   +1 more source

A Comparative Study of Different Schemes Based on Bézier-like Functions with an Application of Craniofacial Fractures Reconstruction

open access: yesMathematics, 2022
Cranial implants, especially custom made implants, are complex, important and necessary in craniofacial fracture restoration surgery. However, the classical procedure of the manual design of the implant is time consuming and complicated.
Abdul Majeed   +2 more
doaj   +1 more source

Parametric curves with Pythagorean binormal

open access: yesAdvances in Computational Mathematics, 2014
The authors present a new class of rational spatial curves with rational binormal. They call this new class PB curves. Also, the construction of this kind of curves (PB curves) is presented based upon the dual curve representation and the Euler-Rodrigues frame obtained from quaternion polynomials.
Jernej Kozak   +2 more
openaire   +4 more sources

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