Results 11 to 20 of about 174,404 (306)

A Comparative Study of Several Classical, Discrete Differential and Isogeometric Methods for Solving Poisson’s Equation on the Disk

open access: yesAxioms, 2014
This paper outlines and qualitatively compares the implementations of seven different methods for solving Poisson’s equation on the disk. The methods include two classical finite elements, a cotan formula-based discrete differential geometry approach and
Thien Nguyen   +2 more
doaj   +1 more source

Automatic simplification of the geometry of a cartographic line using contractive self-mapping – illustrated with an example of a polyline band

open access: yesPolish Cartographical Review, 2023
The present article is another attempt to adapt map geometry to automatic digital cartography. The paper presents a method of digital polyline generalisation that uses contractive self-mapping.
Bac-Bronowicz Joanna   +2 more
doaj   +1 more source

Bijective, Non-Bijective and Semi-Bijective Translations on the Triangular Plane

open access: yesMathematics, 2019
The triangular plane is the plane which is tiled by the regular triangular tessellation. The underlying discrete structure, the triangular grid, is not a point lattice. There are two types of triangle pixels. Their midpoints are assigned to them.
Khaled Abuhmaidan, Benedek Nagy
doaj   +1 more source

A digital signature system based on hand geometry - Survey

open access: yesWasit Journal of Computer and Mathematics Science, 2022
 In recent years large number of emerging automated applications faces the need to have recognition abilities of persons using their own self biometrics, before they can access the applications services.
Mays M. Taher, Dr. Loay E. George
doaj   +1 more source

Development of an innovative specimen geometry for tensile split Hopkinson tests [PDF]

open access: yesEPJ Web of Conferences, 2021
Specimen manufacturing is one of the critical issues to solve during a dynamic material characterization, especially by mean of the Hopkinson bar technique. In particular, concerning tensile testing, the sample is generally axisymmetric with two threaded
Peroni Marco   +2 more
doaj   +1 more source

Algorithms and 3D visualization tools to bring geometric data to life, facilitating immersive experiences and interactive storytelling [PDF]

open access: yesE3S Web of Conferences
The fusion of measurement geometry and computer graphics has ushered in a realm where geometric principles intersect with visual representation, creating a dynamic landscape of spatial analysis, visualization, and digital creativity.
Sabirova Dildora   +3 more
doaj   +1 more source

Collaborating with an Artist in Digital Geometry [PDF]

open access: yes, 2017
In this invited paper, we are going to present an ongoing collaboration with a local artist, Aurelie Mourier. The artist works with voxel shapes and this led our digital geometry team to develop new shape modeling tools and explore a particular class of unfolding problems.
Eric Andres   +2 more
openaire   +1 more source

The importance of computational geometry for digital cartography

open access: yesGeoinformatics FCE CTU, 2009
This paper describes the use of computational geometry concepts in the digital cartography.  It presents an importance of 2D geometric structures, geometric operations and procedures for automated or semi automated simplification process. This article is
Tomáš Bayer
doaj   +1 more source

PENGEMBANGAN DIGITAL WORKSHEET PADA MATERI TRANSFORMASI GEOMETRI UNTUK MELATIH KEMAMPUAN BERPIKIR MATEMATIS

open access: yesAksioma: Jurnal Program Studi Pendidikan Matematika, 2022
Kemampuan berpikir matematis merupakan kemampuan yang penting untuk dimiliki oleh siswa termasuk pada materi transformasi geometri. Salah satu cara untuk melatih kemampuan berpikir matematis siswa adalah dengan menggunakan digital worksheet.
Annisa Oktavia Lestari   +2 more
doaj   +1 more source

Crack Detection and Geometry Measurements using Digital Image Processing

open access: yesDiyala Journal of Engineering Sciences, 2021
Digital image processing (DIP), is the use of a digital computer to process digital images through an algorithm. In this work DIP used to perform crack/defect Detection and geometry measurements in terms of angle, length, and width by building a MATLAB ...
Dhia A. Alazawi   +2 more
doaj   +1 more source

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