Georreferenciamento de imóveis rurais: Análise do cálculo de área.

Abstract

In this paper we develop a methodology for analyzing the area calculation, with coordinates located in three regions of the zone UTM (k=1, k>1, k<1). Thus, the purpose of this paper is to realize the conversion of geographic coordinates to local coordinates, and also comparing the areas obtained in UTM coordinates and local coordinates. For the methodology of this paper, we build two apps with the Visual Basic programming language, in order to format the original coordinates and save them on a database so that, later they be converted (geographic for local) and, subsequently, to perform the calculation of the area of the polygon (local coordinates). We realized that the area calculation from UTM coordinates is shown to inconsistent with local topographic reality, on this account, depending on your spatial location the UTM zone, the variations tend to be larger or smaller. Also, it was found that, despite the small area variation, is important to contrast which positional precisions (for a vertex) established by INCRA are minimal, ergo, is important to analyze and discuss small surface variations, which discriminate differences in the polygonal area.