Use Helmert transform for conversions between OSGB36 and WSG84 (#1311)
authortsteven4 <13596209+tsteven4@users.noreply.github.com>
Thu, 8 Aug 2024 16:07:18 +0000 (10:07 -0600)
committerGitHub <noreply@github.com>
Thu, 8 Aug 2024 16:07:18 +0000 (10:07 -0600)
commit3911278e2aaa01a0bd8af3555d8b811089396f5a
treed8230a2af017ee84f1d5125a8652722a59ee20df
parentbc88336ac4a5f24191d1e2174756fdd2f86e672d
Use Helmert transform for conversions between OSGB36 and WSG84 (#1311)

* use Helmert transform for OSBG36 <-> WGS84.

* adjust unicsv_grids reference for Helmert xform.

* update copyright.

* use constexpr to select helmert inversion method.

* tweak helmert.
garmin_txt.cc
jeeps/gpsmath.cc
jeeps/gpsmath.h
parse.cc
reference/bngtest.csv [new file with mode: 0644]
reference/bngtest.gpx [new file with mode: 0644]
reference/grid-bng~csv.gpx
testo.d/unicsv.test
unicsv.cc
xcsv.cc