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Pregled bibliografske jedinice broj: 711870

Zbornik radova

Autori: Lapaine, Miljenko; Triplat Horvat, Martina
Naslov: Determination of Standard Parallels Based on Parameters of Normal Aspect Conical Projections
( Determination of Standard Parallels Based on Parameters of Normal Aspect Conical Projections )
Izvornik: 5th International Conference on Cartography and GIS Proceedings, Vol. 1 and Vol. 2 / Bandrova, Temenoujka ; Konecny, Milan (ur.). - Sofia, Bulgaria : Bulgarian Cartographic Association , 2014. 143-153.
ISSN: 1314-0604
Skup: 5th International Conference on Cartography and GIS
Mjesto i datum: Riviera, Bugarska, 15-21. 06. 2014
Ključne riječi: cartography; conic map projections; standard parallels
( cartography; conic map projections; standard parallels )
Sažetak:
The following normal aspect conic projections are analysed in detail: conformal, equal-area, equidistant along meridians, equidistant along parallels and gnomonic perspective. Parameters which fully define a map projection are determined by setting certain conditions which have to be met. These conditions are usually expressed using relations which the linear scale has to meet. Then, projection parameters are obtained which are usually expressed with latitudes corresponding to standard parallels, i.e. parallels along which there is no distortion in the projection. This paper emphasises on a reverse procedure: one has to determine standard parallels for known projection parameters. It is shown that the problem is reduced to solving a non-linear equation (for conformal projections and equidistant conic projections along meridians) or quadratic equation (for equal-area projections). This is equivalent to finding a root of appropriate functions. Special emphasis is put on normal aspect conic projections with only one standard parallel. It is demonstrated that the normal aspect conic projection which is equidistant along parallels and the normal aspect conic gnomonic projection can only have one standard parallel, while the conformal, equal-area and equidistant along meridians projections can have two such parallels.
Vrsta sudjelovanja: Predavanje
Vrsta prezentacije u zborniku: Cjeloviti rad (više od 1500 riječi)
Vrsta recenzije: Međunarodna recenzija
Izvorni jezik: eng
Kategorija: Znanstveni
Znanstvena područja:
Geologija,Geodezija
URL Internet adrese: http://cartography-gis.com/docsbca/5ICCandGIS_Proceedings.pdf
Upisao u CROSBI: Martina Triplat Horvat (mthorvat@geof.hr), 1. Ruj. 2014. u 12:56 sati



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