3D measuring

GPS is the USA’s NAVSTAR  ‘Global Positioning System’. It is a space-based global navigation satellite system (GNSS) that provides location and time information in all weather conditions, anywhere on or near the Earth, where there is an unobstructed line of sight to at least four GPS satellites. GPS is maintained by the United States government and is freely accessible with some technical limitations. GPS receivers deliver the position data, without further transformation, in the WGS84 coordinate system.

3D measuring describes a process in which real objects are converted into 3D coordinates be means of technical equipment and 3D measuring methods and surveyed three-dimensionally. The gained results are used for determining positions, lengths, distances, deviations and shapes.

More information on 3D measuring: https://www.laserscanning-europe.com/de/node/2029