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Pregled bibliografske jedinice broj: 713820

Zbornik radova

Autori: Triplat Horvat, Martina; Lapaine, Miljenko
Naslov: Standard Parallels of Equidistant Conic Projections on Old Maps
( Standard Parallels of Equidistant Conic Projections on Old Maps )
Izvornik: Digital Approaches to Cartographic Heritage, 9th International Workshop, Budapest / Zentai, László ; Irás, Krisztina ; Gede, Mátyás (ur.). - Budapest, Hungary : International Cartographic Association Commission Digital Technologies in Cartographic Heritage , 2014. 9-10.
Skup: 9th International Workshop "Digital Approaches to Cartographic Heritage"
Mjesto i datum: Budimpešta, Mađarska, 4-5. 9. 2014.
Ključne riječi: map projections; equidistant conic projection; Kirilov; De l'Isle; Murdoch; Euler; Nuova carta geografica dello Stato Ecclesiastico
( map projections; equidistant conic projection; Kirilov; De l'Isle; Murdoch; Euler; Nuova carta geografica dello Stato Ecclesiastico )
Sažetak:
In previous research, we proved that meridians are straight lines and parallels are arcs of concentric circles on the map Nuova carta geografica dello Stato Ecclesiastico by J. R. Bošković and Ch. Maire published in 1755. We also proved the map was produced in a nor-mal aspect conic projection equidistant along meridians. In order to know the details of the map projection, we need to determine its parameters and standard parallels. This paper describes the determination of standard parallels of the normal aspect conic pro-jection equidistant along meridians. We propose a procedure for determining projection pa-rameters of an old map, especially its standard parallels, if the radius of the sphere the map was produced in is unknown. Constant C is introduced as a ratio of constant K and sphere radius R, which are unknown. The procedure is illustrated on the example of the map Nuova carta geografica dello Stato Ecclesiastico. The area represented on the map Nuova carta geografica dello Stato Ecclesiastico stretches from about 41°20'N to 45°00'N. In order to test which standard parallels could be selected for the map, we calculated them for the Kirilov and De l'Isle projectiona, the Murdoch I and III projections and the Euler projection. By applying formulas of these map projections, we calculated theoretical rectangular coordinates of the graticule and compared them with co-ordinates of the graticule read from the map.
Vrsta sudjelovanja: Predavanje
Vrsta prezentacije u zborniku: Sažetak
Vrsta recenzije: Međunarodna recenzija
Izvorni jezik: eng
Kategorija: Znanstveni
Znanstvena područja:
Geologija,Geodezija
Upisao u CROSBI: Martina Triplat Horvat (mthorvat@geof.hr), 9. Ruj. 2014. u 11:22 sati



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