Naslov
Local linear scale factors in map projections in the directions of coordinate axes

Autori
Lapaine, Miljenko ; Frančula, Nedjeljko ; Tutek Željka

Izvornik
Geo-spatial Information Science (1009-5020) 24 (2021), 4; 630-637

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
map projection ; scale factor ; horizontal scale factor ; vertical scale factor
(map projection ; scale factor ; horizontal scale factor ; vertcial scale factor)

Sažetak
This paper explains that the terms “horizontal and vertical scales” are not appropriate in map projections theory. Instead, the authors suggest using the term “scales in the direction of coordinate axes.” Since it is not possible to read a local linear scale factor in the direction of a coordinate axis immediately from the definition of a local linear scale factor, this paper considers the derivation of new formulae that enable local linear scale factors in the direction of coordinate x and y axes to be calculated. The formula for computing the local linear scale factor in any direction defined by dx and dy is also derived. Furthermore, the position and magnitude of the extreme values of the local linear scale factor are considered and new formulas derived.

Izvorni jezik
Engleski

Znanstvena područja
Geodezija

POVEZANOST RADA