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-2.15.tar.gz https://ftp.gnu.org/gnu/gama/gama-2.15.tar.gz.sig Use a mirror for higher download bandwidth: https://ftpmirror.gnu.org/gama/gama-2.15.tar.gz https://ftpmirror.gnu.org/gama/gama-2.15.tar.gz.sig Here are the SHA1 and SHA256 checksums: ac796acf5eab369157c81ca95a1adb857750c725 gama-2.15.tar.gz nbpQ3K+j5eIe7OqZ8lfs6NL+OvTi/c5HFop2q9I8StM gama-2.15.tar.gz The SHA256 checksum is base64 encoded, instead of the hexadecimal encoding that most checksum tools default to. [*] 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-2.15.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 2.15 (2021-09-20) A maintenance release, no user-visible changes. -- 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.
