OPTIMIZED DETERMINATION OF 3D COORDINATES IN THE SURVEY OF INACCESSIBLE POINTS OF BUILDINGS - EXAMPLE OF APPLICATION IMPLEMENTED IN FREE SOFTWARE

Abstract: The forward intersection method is already widely used in the geodetic survey of coordinates inaccessible points, especially when only angle measurements are available, this case, also called triangulation method. However, mathematical solution 3D with analytical definition spatial lines, resolved by Minimum Distances Method, still not widespread academic and professional environment. This modeling determines a point located middle minimum distance between two or more which spatially "intersect" towards observation point. accurate than others presented literature because it simultaneously solves problem determination least squares, addition to providing an estimate coordinate precision, inherent adjustment. work, therefore, has objective explaining Method for targeted Total Station from known points corners buildings. For analysis method, Python tool was developed QGIS that calculates generates adjustment processing report, being applied real observations Geodetic SUDENE building, Recife-PE. methodology work proved be suitable large structures, achieving spherical precision better ±1.0 cm, following Brazilian standards urban cadastre.