Solving a surveying problem by using R and QGIS - Setting out of a land expropriation zone

Application of the open source software when reso lving geodetic issues provides limitless possibilities. The present paper will showcase a me thodology for setting out of engineering projects t hrough a combination of GIS (Geographic Information System) software QGIS and R software environment. The link between QGIS and R had been established using Sextante toolbox, which significantly extends possibilities for a QGIS application, by establishi ng link to the other "powerful" tools, such as R. T est example of land expropriation project shows the pos sibilities of the QGIS application for analytical elaboration of an expropriation zone, and R softwar e package for automating setting out accuracy calculation.