Results 11 to 20 of about 2,848,636 (250)

Approximately Conformal, Equivalent and Equidistant Map Projections [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2022
If geodetic coordinates from an ellipsoid are included in the equations of a projection for mapping a sphere instead of geographical coordinates, the result will be a projection of the ellipsoid into a plane.
Miljenko LAPAINE,Nedjeljko FRANČULA
doaj   +1 more source

Regression and Evaluation on a Forward Interpolated Version of the Great Circle Arcs–Based Distortion Metric of Map Projections

open access: yesISPRS International Journal of Geo-Information, 2021
We studied the numerical approximation problem of distortion in map projections. Most widely used differential methods calculate area distortion and maximum angular distortion using partial derivatives of forward equations of map projections. However, in
Jin Yan   +3 more
doaj   +1 more source

The gerrymandering jumble: map projections permute districts’ compactness scores [PDF]

open access: yesCartography and Geographic Information Science, 2019
In political redistricting, the compactness of a district is used as a quantitative proxy for its fairness. Several well established, yet competing, notions of geographic compactness are commonly used to evaluate the shapes of regions, including the ...
A. Bar-Natan   +2 more
semanticscholar   +1 more source

From Conic to Cylindrical Map Projections

open access: yesGeodetski Vestnik, 2023
In books and textbooks on map projections, cylindrical, conic and azimuthal projections are usually considered separately. It is sometimes mentioned that cylindrical and azimuthal projections can be interpreted as limiting cases of conic, but this is ...
Miljenko Lapaine
doaj   +1 more source

Dynamic Point Cloud Compression Based on Projections, Surface Reconstruction and Video Compression

open access: yesSensors, 2021
In this paper we will present a new dynamic point cloud compression based on different projection types and bit depth, combined with the surface reconstruction algorithm and video compression for obtained geometry and texture maps. Texture maps have been
Emil Dumic   +2 more
doaj   +1 more source

Semantically Enabling Map Projections Knowledge

open access: yesKartografija i Geoinformacije, 2020
Map projections are an area of cartography with a firm mathematical foundation for their creation and display providing a basis for a knowledge representation.
E. Lynn Usery
doaj   +1 more source

From cartography of the Universe to molecular cartography – the use of map projections

open access: yesPolish Cartographical Review, 2015
Map projections are very important in the compilation of various types of maps and spatial databases. Geographical information systems provide their users with the significant opportunities in the choice of map projections, coordinate systems, their ...
Pędzich Paweł
doaj   +1 more source

Assessment of the Kosovo National Coordinate System (KOSOVAREF01) and Evaluation of Alternative Systems [PDF]

open access: yesMicro, Macro & Mezzo Geoinformation
Coordinate Reference Systems (CRSs) provide the mathematical framework for defining the locations of spatial entities within a reference frame, which includes a geodetic datum and, in many cases, a map projection and additional parameters.
Fitore Bajrami Lubishtani   +3 more
doaj   +1 more source

The method of construction of cylindrical and azimuthal equal-area map projections of a tri-axial ellipsoid [PDF]

open access: yesGeodesy and Cartography, 2018
The paper presents a method of construction of cylindrical and azimuthal equalarea map projections of a triaxial ellipsoid. Equations of a triaxial ellipsoid are a function of reduced coordinates and functions of projections are expressed with use of the
Paweł Pędzich
doaj   +1 more source

Fibonacci lattices for the evaluation and optimization of map projections

open access: yesComputational Geosciences, 2018
Latitude-longitude grids are frequently used in geosciences for global numerical modelling although they are remarkably inhomogeneous due to meridian convergence.
S. Baselga
semanticscholar   +1 more source

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