Results 111 to 120 of about 2,313 (216)

Evaluation of NURBS Surfaces for Regular Structured Parameter Values

, 2015
The evaluation of surface points and derivatives of NURBS surfaces for parameter values that are regularly distributed in a rectangular structure is considered.
Bergström, Per,
core   +1 more source

Research on a Fully Parameterized Geometric Modeling Method for an Air Cavity Planing Hull

Journal of Marine Science and Engineering
An air-lubricated planing hull with integrated air channels presents a transformative approach for enhancing marine vessel performance by significantly reducing hydrodynamic resistance.
Junjie Chen, Yongpeng Ou, Guo Xiang, Wei Wang, Hao Wu   +4 more
doaj   +1 more source

Ruling Based Design Method of Curved Origami

Japan Architectural Review
Curved origami attracts the attention of designers in recent years for the potential in the field of building structures for free form curved design. For practical use, the design methods are required to link the mathematically obtained curved surface ...
Tianhao Zhang, Ken'ichi Kawaguchi
doaj   +1 more source

Developing novel restrictive design for additive manufacturing (DfAM) constraints for NURBS-based adjoint shape optimization for metal AM

Graphical Models
The widespread application of metal additive manufacturing (AM) technologies has enabled exploration of complex design spaces to achieve optimally performing components.
Sagar Jalui, Jacqueline O’Connor, Yuan Xuan, Guha Manogharan   +3 more
doaj   +1 more source

Evaluation of NURBS surfaces: an overview based on runtime efficiency

, 2004
Dynamic tessellation of (trimmed) NURBS surfaces is an important topic for interactive rendering of complex models. Independently of the decomposition method used to approximate surfaces by polygons, an evaluation of the surface at many parametric pairs ...
Moreno, A., Gárcía-Alonso, A., Oyarzun, D., Sánchez, H.   +3 more
core  

Incremental rendering of deformable trimmed NURBS surfaces

, 2003
Trimmed NURBS surfaces are often used to model smooth and complex objects. Unfortunately, most existing hardware graphics accelerators cannot render them directly. Although there are a lot of methods proposed to accelerate the rendering of such surfaces,
Gary K. L. Cheung, Frederick W. B. Li, Rynson W. H. Lau   +2 more
core  

(Guest Editors) Interactive Rendering of Deforming NURBS Surfaces

, 2008
The non-uniform rational B-splines (NURBS) has been widely accepted as a standard tool for geometry representation and design. Its rich geometric properties allow it to represent both analytic shapes and free-form curves and surfaces precisely. Moreover,
Frederick W. B. Li, Rynson W. H. Lau, Mark Green   +2 more
core  

Surface Fitting with NURBS - a Gauss Newton with Trust Region Approach : 13th WSEAS International Conference on APPLIED MATHEMATICS Puerto de la Cruz, SPAIN, DEC 15-17, 2008

, 2008
This paper shows a new approach for non-linear least squares fitting with NURBS as curves and surfaces to measured data by the Gauss-Newton method. A Trust Region algorithm is used to reach global convergence as well as variable substitution and simple ...
Gulliksson, Mårten,, Carlsson, Nils,
core  

Isogeometric analysis of wing structures using multipatch parametrization and penalty-based coupling method. [PDF]

Sci Rep
Wang D, Cao X, Xue Y, Wang W, Du X.
europepmc   +1 more source

Hierachical D-NURBS Surfaces and Their Physics-Based Sculpting

, 2001
In this paper, we present Hierarchical D-NURBS as a new shape modeling representation that generalizes powerful, physics-based D-NURBS for interactive geometric design.
Hong Qin, Meijing Zhang
core