Version 2.05 May 2019
* The program gama-local for adjustment of local surveying networks
used a C++ class Acord for computing approximate coordinates of
adjusted points, if these were not explicitly given on
input. Acord's computations were based on intersections (and local
transformations if necessary) of the tuples of determining
observations (for example a bearing and a distance). Gama-local
expected input data to be free of blunders, which might be a strong
assumption in practice.
New class Acord2 was introduced as a robust alternative for typical
two dimensional input configurations (Acord2 is not a complete
general solution yet); the idea is to find all (or as many as possible)
solutions of coordinates of a selected point and use their median as
the robust position estimation. Algorithm Acord2 is followed by the
original Acord intersections in gama-local, before the adjustment
solution of the network. Acord2 is based on the master's thesis by
Petra Millarová <petramillarova@gmail.com>
Despite the version jump from 1 to 2, the changes are relatively
small, consisting mostly of various minor improvements and bugfixes.
Notable items are:
* The new attribute "extern" suggested by Kristian Evers (Danish
Agency for Data Supply and Efficiency) was added both to the
gama-local xml input and adjustment results xml output to be
conformant with an external database project. Information supplied in
"extern" attributes of observations are not processed in any way in
gama-local and are only passively transfered to XML adjustement
output.
* Improved Hungarian translation by Siki Zoltan:
* Kolmogorov-Smirnov test removed - available only as conditional
compile
Version 1.21 November 2017
* Maintainer's release : internal matrix/vectors memory management
replaced with a new implementation using C++11 move constructor and
move asignment syntax.
packaging change: Depend on GNU make (not documented upstream).
Upstream changes:
* New test suite for matvec classes and support for valgrind memory
leak tests for tests/matvec and tests/gama-local.
This release is a preperation phase for the next release in which
the base matvec memory handling class (MemRep) will reimplemented
with C++11 move constructor and move assignemnt operator.
Version 1.19 June 2017
* fixed a bug introduced in 1.16, reported by Pierre Bosser
<pierre.bosser@ensta-bretagne.fr>. Implicit value of
covariance band in XML adjustment output is -1 (full
bandwidth).
gama now requires c++11. It's likely that 1.18 did also, but that
this was less obvious.
Besides items noted in upstream NEWS, two pkgsrc patches were applied
upstream.
Version 1.19 June 2017
* fixed a bug introduced in 1.16, reported by Pierre Bosser
<pierre.bosser@ensta-bretagne.fr>. Implicit value of
covariance band in XML adjustment output is -1 (full
bandwidth).
Version 1.18 August 2016
* configure.ac : patch by Greg Troxel <gdt@lexort.com>
CPPFLAGS was set with +=, which is a bash extension and fails on
POSIX-conforming shells. This resulted in sqlite3 support not being
enabled on NetBSD, even though the sqlite3 library was found and
linked in.
* fixed some minor problems reported by Greg Troxel (doc, NEWS)
* in local/network.cpp commented out // removed_obs.clear();
* fixed a formatting bug in outlaying terms (due to c++11)
* fixed a bug in HTML parser test
* simplified class LocalPoint
* fixed a bug in sql export reported by Dominik Hladik
* added @documentencoding UTF-8 into gama.texi
Add two bashishm exorcism patches of the usual s/==/=/ style.
Upstream news:
Version 1.17 (no upstream NEWS; bug about this reported upstream)
Version 1.16 Jula 2015
* minor fixes in documentation
* fixed a bug in SQL schema
* new export of XML network definition
* C++11 features enabled (-std=c++11 for g++ compiler)
* fixed several minor bugs
One mismatched digest found in geography/libmemphis02:
# package libmemphis02
recorded SHA1 (memphis-0.2.3.tar.gz) = dbc2f61e49b996dc9ca91df0de9a08eb7adbfa9b
calculated SHA1 (memphis-0.2.3.tar.gz) = 85993bce12c3616fcf6e7682a70b9605883edec2
No changes were made to the libmemphis02 distinfo file
Otherwise, existing SHA1 digests verified and found to be the same on
the machine holding the existing distfiles (morden). All existing
SHA1 digests retained for now as an audit trail.
Version 1.15 February 2014
* DTD replaced with XSD for gama-local.xsd and
gama-local-adjustment.xsd. Attribute version describing XML version
of input and adjustment outpup XML documents became useles with
introduction of XSD a was removed from tags <gama-local> and
<gama-local-adjustment>. Some more elements attributes were
introduced in revised XML formats which are incompatible with older
versions.
Version 1.14 June 2013
* A posteriori standard deviation Chi-Square test is newly always
performed (even when gama-local uses a priori reference standard
deviation).
* Added Chinese translation in GBK encoding (switch "zh")
* New output format XHTML Strict 1.0 in gama-local
* Added a basic test suite for gama-local (make check).
Version 1.13
* Fixed templates lookup name syntax errors reported by Brandon
Invergo <brandon@invergo.net> (detected by compiler g++-4.7).
Many thanks for your patch, Brandon.
* Fixed a bug reported by Jacques Beilin <jacques.beilin@ensg.eu>
Function NormalDistribution ended in an endless loop for high
values of input argument x.
* Fixed a bug reported by Anton Horpynich <anton@vingeo.com>
The computation of approximate coordinates failed if an angle
needed for computing of an intersection was smaller than 0.15
radians / 10 gons (implicit testing criterion). Although this is a
reasonable limit for standard surveying networks, in a batch
computation of approximate coordinates a much smaller value can be
sometimes acceptable. It is more or less a matter of personal
opinion if this is to be supposed a bug or not.
Gama newly solves approximate coordinates in two main loops.
During the first loop the default value 0.15 in class Acord is
used. If afterwards there still some coordinates remain
missing, Gama starts a second loop with series of iterations in
which firstly tries to find a solution with the default value
then secondly with a very tiny limit of 0.0015 radians.
In most cases all coordinates are solved in the first loop with
the default small angle limit 10 gons.
* In gama-local suppressed output of running results during
linearization iterations and several other minor fixes
Version 1.12
* class BaseVisitor and related classes moved to separete file visitor.h
* local Observation has protected init method and non-parametric constructor
Code in local Observation was reorganized and some atributes are not const.
* local observations are visitable (base is Accept<>)
- class Direction : public Observation
+ class Direction : public Accept<Direction, Observation>
** local observations' write methods moved to WriteVisitor
** LocalRevision and LocalLinearization are now visitors
** base classes Revision and Linearization removed from local
** method observations_summary in LocalNetworkXML uses visitor for counting
** method observations in LocalNetworkXML uses visitor for writing
** function OutlyingAbsoluteTerms uses visitor for writing
** method test_abs_term in LocalNetwork uses visitor for test
** local Observation set_passive and set_active methods are now non-const
** function AdjustedObservations uses visitor for writing part of table row
** function TestLinearization uses visitor for computing and writing
** function ResidualsObservations uses visitor writing observation name
* fixed a bug in the definition of angular observations reported
by Anna Kratochvilova <anna.kratochvilova@fsv.cvut.cz> and Vaclav
Petras <vaclav.petras@fsv.cvut.cz>
* updated version of review.hu.lang by Siki Zoltan, some
corrections in the Hungarian translation of GNU Gama
Upstream says that using sqlite3 will become somewhere between normal
and the standard approach. Because sqlite3 is small and typically
already isntalled on systems where one would want to run gama, just
depend on it and don't bother to make it an option.
It would be fine with me to make it a default-on option, but I don't
think that's worth the complexity.
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.
