./geography/gama, Geodetic network adjustment (surveying)

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Branch: CURRENT, Version: 2.21, Package name: gama-2.21, Maintainer: gdt

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.


Required to build:
[pkgtools/cwrappers]

Master sites: (Expand)

Filesize: 14480.025 KB

Version history: (Expand)


CVS history: (Expand)


   2022-07-21 01:38:29 by Greg Troxel | Files touched by this commit (2)
Log message:
geography/gama: Update to 1.21

Changes in release 2.21

  - bugfixes

Changes in release 2.20 (2022-06-30)

  - The new algorithm ICGS (iterated classical Gram-Schmidt) in the
    class AdjGSO replaced the former algorithm MGS (modified
    Gram-Schmidt), which was implemented with column pivoting as a
    template class GSO. The template class GSO is meant only as a tool
    for testing purposes. Both initial scaling and pivoting with
    euclidean norms are not suitable for practical computations.

    The old legacy code with MGS used in the AdjGSO class is still
    available with conditional compilation directive statements if the
    name GNU_GAMA_GSO_LEGACY_CODE is defined.
   2022-06-30 19:53:21 by Greg Troxel | Files touched by this commit (2)
Log message:
geography/gama: Update to 2.19

Changes in release 2.19 (2022-04-26)

  - fixed a bug in HTML output of adjustment results for GNSS vectors
    in incosistent coordinates systems.

  - added new test to GNU Gama Test Suite.
   2022-04-18 21:12:27 by Adam Ciarcinski | Files touched by this commit (1798) | Package updated
Log message:
revbump for textproc/icu update
   2022-04-14 14:34:16 by Greg Troxel | Files touched by this commit (3)
Log message:
geography/gama: Update to 2.18

* 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, Geod├Ątisches Institut Universit├Ąt 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
   2022-01-30 16:44:15 by Greg Troxel | Files touched by this commit (2)
Log message:
geography/gama: Update to 2.17

upstream changses: Maintenance - no user visible changes.
   2021-12-08 17:07:18 by Adam Ciarcinski | Files touched by this commit (3063)
Log message:
revbump for icu and libffi
   2021-11-26 21:19:20 by Greg Troxel | Files touched by this commit (2) | Package updated
Log message:
geography/gama: Update to 2.16

Changes in release 2.16 (2021-11-25)

  A maintenance release, the only user-visible changes are new
  gama-local option --export (renamed from --updated-xml) and some
  more tests in the gama-local sets suite.
   2021-10-26 12:45:18 by Nia Alarie | Files touched by this commit (108)
Log message:
geography: Replace RMD160 checksums with BLAKE2s checksums

All checksums have been double-checked against existing RMD160 and
SHA512 hashes