Results 1 to 10 of about 29,215 (262)

Stitching Locally Fitted T-Splines for Fast Fitting of Large-Scale Freeform Point Clouds [PDF]

open access: yesSensors, 2023
Parametric splines are popular tools for precision optical metrology of complex freeform surfaces. However, as a promising topologically unconstrained solution, existing T-spline fitting techniques, such as improved global fitting, local fitting, and ...
Jian Wang   +6 more
doaj   +2 more sources

T-Splines for Isogeometric Analysis of the Large Deformation of Elastoplastic Kirchhoff–Love Shells

open access: yesApplied Sciences, 2023
In this paper, we develop a T-spline-based isogeometric method for the large deformation of Kirchhoff–Love shells considering highly nonlinear elastoplastic materials.
Mayi Guo   +5 more
doaj   +1 more source

An improvised technique of quintic hermite splines to discretize generalized Burgers–Huxley type equations [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2023
A mathematical collocation solution for generalized Burgers–Huxley and generalized Burgers–Fisher equations has been monitored using the weighted residual method with Hermite splines.
I. Kaur, S. Arora, I. Bala
doaj   +1 more source

Non-symmetric approximations of functional classes by splines on the real line

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
Let $S_{h,m}$, $h>0$, $m\in {\mathbb N}$, be the spaces of polynomial splines of order $m$ of deficiency 1 with nodes at the points $kh$, $k\in {\mathbb Z}$.
N.V. Parfinovych
doaj   +1 more source

Algorithms for Space Mapping Method on Spline Spaces over Modified Hierarchical T-Meshes

open access: yesMathematics, 2022
The space-mapping method provides a novel method for dimension formulae explanation and basis construction for the spline space over hierarchical T-meshes.
Jingjing Liu, Li Zhang, Weihong Zhang
doaj   +1 more source

Locally Refined T‐splines [PDF]

open access: yesInternational Journal for Numerical Methods in Engineering, 2018
SummaryWe extend Locally Refined (LR) B‐splines to LR T‐splines within the Bézier extraction framework. This discretization technique combines the advantages of T‐splines to model the geometry of engineering objects exactly with the ability to flexibly carry out local mesh refinement.
Chen, L., de Borst, R.
openaire   +3 more sources

Fitting Terrestrial Laser Scanner Point Clouds with T-Splines: Local Refinement Strategy for Rigid Body Motion

open access: yesRemote Sensing, 2021
T-splines have recently been introduced to represent objects of arbitrary shapes using a smaller number of control points than the conventional non-uniform rational B-splines (NURBS) or B-spline representatizons in computer-aided design, computer ...
Gaël Kermarrec   +2 more
doaj   +1 more source

LR B-splines to approximate bathymetry datasets: An improved statistical criterion to judge the goodness of fit

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2022
The task of representing remotely sensed scattered point clouds with mathematical surfaces is ubiquitous to reduce a high number of observations to a compact description with as few coefficients as possible.
Vibeke Skytt   +2 more
doaj   +1 more source

A Polynomial Splines Identification Method Based on Control Nets

open access: yesComplexity, 2020
In this study, based on Polynomial Splines with control nets, an identification method is investigated. We introduce polynomial splines with control nets defined over T-mesh.
Zhihua Wang, Hongmei Kang
doaj   +1 more source

Solid Model Generation for Digitized Organic Bodies via T-Splines

open access: yesHeritage, 2020
This paper presents a workflow for B-rep solid model generation of organic objects using T-splines constructed with quad-meshes. The aim is the creation of geometrically and topologically consistent B-rep solid models of heritage objects featuring ...
Luigi Barazzetti
doaj   +1 more source

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