Results 21 to 30 of about 1,711 (183)

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, Margarita Amor, Emilio J. Padrón 0001, Michael C. Doggett   +3 more
openaire   +2 more sources

NURBS or not NURBS?

Comptes Rendus. Mathématique, 2016
The view adopted here is that the largest class of splines which are useful for design is composed of all spaces of geometrically continuous piecewise quasi-Chebyshevian splines that contain constants and possess blossoms. We recently described an iterative construction of all spaces of this class.
openaire   +3 more sources

Injectivity of NURBS curves

Journal of Computational and Applied Mathematics, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xuan-Yi Zhao, Chun-Gang Zhu
openaire   +2 more sources

Inverse Geometric Reconstruction Based on MW-NURBS Curves

Mathematics
Currently, rational curves such as the Non-Uniform Rational B-Spline (NURBS) play a significant role in both shape representation and shape reconstruction.
Musrrat Ali, Deepika Saini, Sanoj Kumar
doaj   +1 more source

An Improved Method for NURBS Free-Form Surface Based on Discrete Stationary Wavelet Transform

IEEE Access, 2020
In order to improve fitting accuracy of free-form surface, an improved method for the currently recognized NURBS free-form surface based on discrete stationary wavelet transform is proposed.
Deming Kong, Xiaoqiang Tian, Dehan Kong, Xiaodan Zhang, Li Yuan   +4 more
doaj   +1 more source

Fast Reconstruction Model of the Ship Hull NURBS Surface with Uniform Continuity for Calculating the Hydrostatic Elements

Journal of Marine Science and Engineering, 2023
The fast reconstruction of the ship hull nonuniform rational B-spline (NURBS) surface with uniform continuity is essential for calculating hydrostatic elements such as waterplane area and molded volume in real time.
Kaige Zhu, Guoyou Shi, Jiao Liu, Jiahui Shi   +3 more
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

Special Approach for Thermal Modelling Fibre-Reinforced Composites with Larger Aspect Ratio

Communications, 2012
Fundamental solutions and their derivatives located along fibre axes are presented to simulate the interactions of matrix and reinforcing elements in composite materials, when the primary field is a scalar function temperature in heat conduction.
Milan Zmindak, Pavol Novak
doaj   +1 more source

Systematic Exploration of 3D Concrete Printing Parameters for Conformal Printing on Sloped Surfaces

Advanced Robotics Research, EarlyView.
A conformal slicing algorithm is developed for robotic 3D concrete printing (3DCP) on sloped surfaces as a first step toward printing slab‐on‐grade foundations on uneven terrain. Systematic experiments quantify the effects of nozzle speed, extrusion rate, and toolpath direction on filament dimension and stability.
Paniz Farrokhsiar, Benay Gursoy, Jose Pinto Duarte   +2 more
wiley   +1 more source

An Isogeometric Bézier Finite Element Method for Vibration Optimization of Functionally Graded Plate with Local Refinement

Crystals, 2022
An effective free vibration optimization procedure in combination with the isogeometric approach (IGA), particle swarm optimization (PSO) and an integrated global and local parameterization is presented.
Xing Wei, Dongdong Liu, Shuohui Yin
doaj   +1 more source