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2021-09-17Database: add a 'anchor' field to geodetic_datum and vertical_datum tablesEven Rouault
Update database layout version number to 1.2 consequently This new capability will be used by IAU planetary CRS (refs #2601)
2021-03-23Incorrect EPGS extent code for EPSG:7789>EPSG:4976 transformationSveinung Himle
2021-03-11Database: fix NKG transformationsEven Rouault
2021-03-11Database: Additions to the norwegian NKG2020 transformation (#2548)Sveinung Himle
* Correction grid NKG:ETRF14 to EPSG:7922 * Added NKG:ITRF_TO_NO GIE test * Correction grid no_kv_NKGETRF14_EPSG7922_2000 added to grid_alternatives.sql * proj_method 'velocity_grid' added in check_grid_alternatives_proj_method. NKG velocity grid added to grid_alternatives.sql Co-authored-by: Even Rouault <even.rouault@spatialys.com>
2020-12-21Implementing the NKG transformations in proj.dbKristian Evers
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.