JAG3D is a simple tool to estimate a local geodetical 3d-net by a least-square-adjustment (LSA) called Gauß -Markov-Model (GMM). The software calculates coordinates from raw-data e.g. slopedistance, directions, azimuth-angles and/or zenith-angles-JAG3D is a simple tool to estimate a local geodetical 3d-net by a least-square-adjustment (LSA) called Gauß-Markov-Model (GMM). The software calculates coordinates from raw-data e.g. slopedistance, directions, azimuth-angles and/or zenith-angles