About GNU Gama package is dedicated to adjustment of geodetic networks. It is intended for use with traditional geodetic surveyings which are still used and needed in special measurements (e.g., underground or high precision engineering measurements) where the Global Positioning System (GPS) cannot be used.
Adjustment in local coordinate systems is fully supported by a command-line program gama-local that adjusts geodetic (free) networks of observed distances, directions, angles, height differences, 3D vectors and observed coordinates (coordinates with given variance-covariance matrix). Adjustment in global coordinate systems is supported only partly as a gama-g3 program. https://www.gnu.org/software/gama/ Here are the compressed sources and a GPG detached signature[*]: https://ftp.gnu.org/gnu/gama/gama-2.12.tar.gz https://ftp.gnu.org/gnu/gama/gama-2.12.tar.gz.sig Use a mirror for higher download bandwidth: https://ftpmirror.gnu.org/gama/gama-2.12.tar.gz https://ftpmirror.gnu.org/gama/gama-2.12.tar.gz.sig Here are the MD5 and SHA1 checksums: 32f8894022c08acdd60ebf5a7ec880c5 gama-2.12.tar.gz 659da8942bc8de1d2c9000e8ff41aa7e5eb803d9 gama-2.12.tar.gz [*] Use a .sig file to verify that the corresponding file (without the .sig suffix) is intact. First, be sure to download both the .sig file and the corresponding tarball. Then, run a command like this: gpg --verify gama-2.12.tar.gz.sig If that command fails because you don't have the required public key, then run this command to import it: gpg --keyserver keys.gnupg.net --recv-keys 1b77fc09 and rerun the 'gpg --verify' command. NEWS Changes in release 2.12 (2020-11-28) * Alternative support of input data based on YAML format. YAML support was added for gama-local as an alternative to the existing XML input format. The YAML support is currently limited only to a conversion program gama-local-yaml2gkf but it may be fully integrated in gama-local program later. -- GPG: C6E1 824E 0180 B85F 31B0 6B6A CB6C E60D 1B77 FC09 -- If you have a working or partly working program that you'd like to offer to the GNU project as a GNU package, see https://www.gnu.org/help/evaluation.html.