PROJ/test/gie, branch 7.2

Implementing the NKG transformations in proj.db

2020-12-21T16:30:16+00:00

This adds the NKG 2008 and 2020 transformations to proj.db. The NKG
transformations offers transformations between global reference frames
and the national realisations of ETRS89 in Denmark, Estonia, Finland,
Latvia, Lithuania, Norway and Sweden.

The 2008 transformations are already implemented in the NKG 2008 file
but will now be more accessible with the modern API.

The 2020 transformations are new to PROJ and offers and updated version
of the 2008 transformations using a new and improved deformation model
(eu_nkg_nkgrf17vel.tif). A 2020 version of the NKG transformations are
currently not available for Norway but will in all likelyhood be
included at a later point in time.

Inverse tmerc spherical: fix wrong sign of latitude when lat_0 is used (fixes #2468)

2020-11-29T15:31:12+00:00

Corrected formula given by @evanmiller

Add +proj=col_urban projection, implementing a EPSG projection method used by a number of projected CRS in Colombia (fixes #589)

2020-10-25T20:17:29+00:00

Fix typos spotted by scripts/fix_typos.sh

2020-10-25T15:18:58+00:00

Merge pull request #2361 from rouault/ortho_ellipsoidal

2020-09-30T11:37:40+00:00

Implement ellipsoidal formulation of +proj=ortho (fixes #397)

Add a +proj=tinshift for triangulation-based transformations

2020-09-30T09:26:48+00:00

Implements RFC-6

Ortho ellipsoidal inverse: improve accuracy in polar case with (x,y) close to (0,0)

2020-09-27T14:19:56+00:00

Ortho ellipsoidal inverse: add domain check for oblique case, and slighly improve initial guessing

2020-09-27T11:51:15+00:00

Ortho ellipsoidal inverse: add non iterative implementations for polar and equatorial

2020-09-26T17:07:55+00:00

Ortho: add visibility condition for ellipsoidal case. Credits to @cffk

2020-09-26T16:55:25+00:00