%0 Journal Article %T GeoEasy an open source project for surveying calculations %A Zoltan Siki %J - %D 2018 %R https://doi.org/10.14311/gi.17.2.1 %X The development of the GeoEasy program started in 1997. Twenty years later in 2017 it became free software under GPL license, version 3.0.0 is freely available for everybody. The core development of GeoEasy is made on Linux operating system, using Tcl/Tk script language, thanks to the Tcl/Tk ports to other operating systems, the program can be run on Linux, Windows, Android and OSX machines. Objectives of the development are to create user friendly graphical user interface (GUI) for surveying calculations in a modular structure with flexible, open connections to other programs. Both educational and professional usages are supported %K surveying calculation %K network adjustement %K DTM %K regression calculation %K open source %U https://ojs.cvut.cz/ojs/index.php/gi/article/view/gi.17.2.1