Obârşia-Coloșani commune is located in the northern part of Mehedinti county, with an area of 7,846 ha and is bordered: to the north with Padeș Gorj commune, to the south with Isverna and Ponoarele communes, to the west with Isverna village, and to the east with Baia de Aramă town. Compared to the municipality of Drobeta Turnu Severin is located at a distance of 80 km, and from the town of Baile Herculane at about. 50 km. The Mehedinti Plateau, although it is a geographical unit with heights characteristic of the hilly regions, has a petrographic composition and a geological structure specific to the mountains (it belongs from a geo-structural point of view to the Southern Carpathians, meeting here almost all their structural units: the Getic canvas, the Danubian native and the Severin cloth); 50 to 55%. The objective of the work is to draw up a documentation for the first registration of the building located in OBARȘIA-CLOȘANI Commune, extravilan, Mehedinnti County. The topo-cadastral operations existing in the area are the following: geodetic works, photogrammetric and cartographic topo, topographical plans at 1:25000 scale in STEREOGRAFIC system 1970, Black Sea reference level. In order to execute the work, it was necessary to raise the topographical site at the scale of 1:5000. For the radiated points were calculated the rectangular coordinates in the stereographic system, which used the analytical calculation of the surface to be drawn up in the plane. In order to determine the coordinates of the station points, azimuth and zenith observations were executed by the horizon tour method, and the radiated points were determined by the radiation method. For the calculation of rectangular coordinates and the analytical calculation of surfaces, specialized programs were used. The data was uploaded, then processed into the AutoCAD system, which is a CAD system, used in the design of two-dimensional (2D) design plans, less in 3 dimensions (3D), invented and marketed by the American company Autodesk. System-specific ("native") files are dwg files, as well as dxf (Drawing eXchange Format) files, which are extremely widespread. For measuring angles and distances, the total station LEICA TS 02 was used.

AutoCAD, Autodesk, dwg, dwf, Leica TS 02

environmental engineering

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