Margita VAJSÁBLOVÁ, Renata ĎURAČIOVÁ, Tibor LIESKOVSKÝ, Tomáš DURDOVANSKÝ

Transformations of data among coordinate systems used in territory of Slovakia in GIS environment

Vajsáblová, M., Ďuračiová, R., Lieskovský, T., Durdovanský, T.: Transformations of data among coordinate systems used in territory of Slovakia in GIS environment. Kartografické listy, 2010, 18, 4 figs., 2 tabs., 6 refs.

Abstract: One of the essential conditions for the data analysis in GIS environment is their expression in a unified coordinate system. This includes the transformation of layers between different coordinate systems. The paper presents a theoretical analysis of the transformation among the coordinate systems used in Slovakia: S-JTSK, ETRS-89, WGS-84 and S-42 and also a description of the numerical transformation of the 2D coordinate systems. Next part of the paper includes the description of raster data transformation (much more difficult than vector data transformation) in ArcGIS Desktop software developed by ESRI. ArcGIS works with sev-eral set of parameters of transformation among coordinate systems, and it is not clear which set of parameters choice to the territory of Slovakia. Verification of the parameters is also part of the paper.

Keywords: coordinate system, transformation, raster data, GIS, parameters of transformation