DBPapers
DOI: 10.5593/SGEM2014/B22/S9.056

SOFTWARE SUPPORT FOR HELMERT’S TRANSFORMATION OF COORDINATES

M. Zrinjski, D. Barkovic, I. Puklavec
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-11-7 / ISSN 1314-2704, June 19-25, 2014, Book 2, Vol. 2, 443-450 pp

ABSTRACT
The paper describes the old positional datum, the Croatian State Coordinate System (HDKS) and the accompanying projection reference coordinates system (Gauss-Krüger projection), that are influenced by historical heritage and were established in the state that the Republic of Croatia was an integral part of. After the Republic of Croatia had become independent, the need occurred to introduce new geodetic datums in accordance with the national interests and the development of science and technology. New geodetic datums (Croatian Terrestrial Reference System 1996 – HTRS96) and plane map projection (HTRS96/TM) being in official use today were introduced by the decree of the Croatian Government. Ever since introducing new geodetic datums and new reference coordinate system, it has become especially important to transform the coordinates between the old and the new reference coordinate systems. The paper presents the application that makes the transformation of coordinates between the old and the new coordinate system of the Republic of Croatia possible by applying Helmert’s seven-parameter transformation. The programme language Python was used for the development of the application.

Keywords: Helmert’s transformation, transformation of coordinates, HDKS, HTRS96/TM