Results 21 to 30 of about 128,865 (293)

Encoding Conversion Algorithm of Quaternary Triangular Mesh

open access: yesISPRS International Journal of Geo-Information, 2021
In the process of global information construction, different fields have built their own discrete global grid systems (DGGS). With the development of big data technology, data exchange, integration, and update have gradually become a trend, as well as ...
Yihang Chen   +4 more
doaj   +1 more source

On the resolution of triangular meshes

open access: yesJournal of Advances in Modeling Earth Systems, 2022
AbstractIt is generally agreed that the resolution of a regular quadrilateral mesh is the side length of quadrilateral cells. There is less agreement on the resolution of triangular meshes, exacerbated by the fact that the numbers of edges or cells on triangular meshes are approximately three or two times larger than that of vertices.
openaire   +2 more sources

Adaptive triangular-quadrilateral mesh generation [PDF]

open access: yesInternational Journal for Numerical Methods in Engineering, 1998
The authors propose an automatic triangular to quadrilateral mesh conversion adaption scheme and introduce a new optimal vertex smoothing procedure. Some numerical results, academic tests and a computational fluid dynamics example show the efficiency of the proposed method.
Borouchaki, Houman, Frey, Pascal J.
openaire   +2 more sources

Repair of Voids in Multi-Labeled Triangular Mesh

open access: yesApplied Sciences, 2021
In this paper, we propose a novel mesh repairing method for repairing voids from several meshes to ensure a desired topological correctness. The input to our method is several closed and manifold meshes without labels.
Deyun Zhong   +5 more
doaj   +1 more source

Adaptive Semi-Structured Mesh Refinement Techniques for the Finite Element Method

open access: yesApplied Sciences, 2021
The adaptive mesh techniques applied to the Finite Element Method have continuously been an active research line. However, these techniques are usually applied to tetrahedra. Here, we use the triangular prismatic element as the discretization shape for a
Adrian Amor-Martin   +1 more
doaj   +1 more source

Thin discrete triangular meshes

open access: yesTheoretical Computer Science, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Barneva, Reneta P.   +2 more
openaire   +1 more source

ISpliter: an intelligent and automatic surface mesh generator using neural networks and splitting lines

open access: yesAdvances in Aerodynamics, 2023
In this paper, we present a novel surface mesh generation approach that splits B-rep geometry models into isotropic triangular meshes based on neural networks and splitting lines.
Zengsheng Liu   +6 more
doaj   +1 more source

Computing geodesics on triangular meshes [PDF]

open access: yesComputers & Graphics, 2005
We present a new algorithm to compute a geodesic path over a triangulated surface. Based on Sethian's Fast Marching Method and Polthier's straightest geodesics theory, we are able to generate an iterative process to obtain a good discrete geodesic approximation. It can handle both convex and non-convex surfaces.
Dimas MartĂ­nez   +2 more
openaire   +1 more source

New approaches for Delaunay triangulation and optimisation

open access: yesHeliyon, 2019
New techniques are presented for Delaunay triangular mesh generation and element optimisation. Sample points for triangulation are generated through mapping (a new approach). These sample points are later triangulated by the conventional Delaunay method.
Logah Perumal
doaj   +1 more source

An Improved 3D Box-Counting Dimension Computing Technology for Estimating the Complexity of 3D Models

open access: yesIEEE Access, 2022
The box-counting dimension, which can effectively reflect the complexity and self-similarity of models, is an important method for calculating the fractal dimension of models.
Chong Wang, Weiqiang An
doaj   +1 more source

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