* Changes in release 2.18 (2022-04-09)
New conversion class K2gkf (lib/krumm) with accompanying program
krumm2gama-local and the testing suite for converting input data
format used in the text book "Geodetic Network Adjustment Examples" by
Friedhelm Krumm, Geodätisches Institut Universität Stuttgart, 2020.
Not all input data in Krumm Format can be converted to GNU Gama,
i.e. to the adjustment program gama-local input XML:
* scale factor is not implemented in gama-local adjustment
* gama-local does not enable fixing only x coordinate (or y
coordinate) for 2D free network to remove singularity. This kind
of regularization has very little practical meaning. Technically
it would be possible to enable this feature in gama-local, but it
is questionable if the outcome would not enable more confusion
than possible outcome. Adustment should not be dependent on the
coordinate system used.
* gama-local does not deduce that an azimuth to the unknown point
P can be combined with some angle pointing to the P to create a
new feigned azimuth. This is an interesting feature which may
be implemented in some future version, namely in the gama-local
stage of computing approximate coordinates.
* nonlinear conditions are not implemented in gama-local
* BLH coordinates are not supported in gama-local
Changes in release 2.13 (2021-01-15)
* [new program gama-local-gkf2yaml]
* Command line programs gama-local, gama-local-yaml2gkf and
gama-local-gkf2yaml can now read input data from standard input.
* New exlicit parameter --input-xml in gama-local (previously input
file was the first parameter)
* [bug fixes and minor improvements]
GNU Gama is a project 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 Cartesian 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.
