Results 21 to 30 of about 38,901 (314)

The Shortest-Edge Duplication of Triangles

open access: yesMathematics, 2022
We introduce a new triangle transformation, the shortest-edge (SE) duplication, as a natural way of mesh derefinement suitable to those meshes obtained by iterative application of longest-edge bisection refinement. Metric properties of the SE duplication
Miguel Ángel Padrón   +3 more
doaj   +1 more source

THE EFFECT OF SCREEN WALL ON FLOW ENERGY DISSIPATION: A REVIEW [PDF]

open access: yesAdvanced Engineering Letters, 2022
Several studies indicate that using hydraulic structure results in some adverse effects that affect the stability of these structures, including scouring the floor.
Arwa A. Mala Obaida   +2 more
doaj   +1 more source

Theoretical Treatment of Limitations Inherent in Simple 3D Stimuli: Triangles and the P3P Problem

open access: yesVision, 2021
Understanding the visual stimulus in a psychophysical experiment, theoretically, is critical for controlling the experiment, for interpreting the empirical results of the experiment, and for discussing the mechanisms the visual system used to get these ...
Vasiliy Minkov, Tadamasa Sawada
doaj   +1 more source

Analytic Form Fitting in Poor Triangular Meshes

open access: yesAlgorithms, 2021
Fitting of analytic forms to point or triangle sets is central to computer-aided design, manufacturing, reverse engineering, dimensional control, etc. The existing approaches for this fitting assume an input of statistically strong point or triangle sets.
Cristian Rendon-Cardona   +3 more
doaj   +1 more source

OceanMesh2D 1.0: MATLAB-based software for two-dimensional unstructured mesh generation in coastal ocean modeling [PDF]

open access: yesGeoscientific Model Development, 2019
OceanMesh2D is a set of MATLAB functions with preprocessing and post-processing utilities to generate two-dimensional (2-D) unstructured meshes for coastal ocean circulation models.
K. J. Roberts   +2 more
doaj   +1 more source

Short communication: Landlab v2.0: a software package for Earth surface dynamics [PDF]

open access: yesEarth Surface Dynamics, 2020
Numerical simulation of the form and characteristics of Earth's surface provides insight into its evolution. Landlab is an open-source Python package that contains modularized elements of numerical models for Earth's surface, thus reducing time required ...
K. R. Barnhart   +15 more
doaj   +1 more source

Using Virtual Scanning to Find Optimal Configuration of a 3D Scanner Turntable for Scanning of Mechanical Parts

open access: yesSensors, 2021
The article describes a method of simulated 3D scanning of triangle meshes based on ray casting which is used to find the optimal configuration of a real 3D scanner turntable.
Tomáš Kot   +5 more
doaj   +1 more source

A Statistical Shape-Based Patient-Specific Anatomical Structure Model

open access: yesIEEE Access, 2022
A patient-specific anatomical structure model has been widely used in many medical applications. However, in practical applications, to effectively construct a patient-specific anatomical structure model is a challenge, the reasons are: 1) the manual ...
Zhuye Xu, Xiaoqiang Zhao
doaj   +1 more source

Unsupervised Machine Learning for Improved Delaunay Triangulation

open access: yesJournal of Marine Science and Engineering, 2021
Physical oceanography models rely heavily on grid discretization. It is known that unstructured grids perform well in dealing with boundary fitting problems in complex nearshore regions.
Tao Song   +7 more
doaj   +1 more source

Streaming compression of triangle meshes [PDF]

open access: yesACM SIGGRAPH 2005 Sketches on - SIGGRAPH '05, 2005
Current mesh compression schemes encode triangles and vertices in an order derived from systematically traversing the connectivity graph. These schemes struggle with gigabyte-sized mesh input where the construction and the usage of the data structures that support topological traversal queries become I/O-inefficient and require large amounts of ...
Jack Snoeyink   +2 more
openaire   +3 more sources

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