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https://github.com/OSGeo/PROJ-data/pull/13 + handle 'Vertical Offset by Grid Interpolation (BEV AT)' method
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The definition of EPSG:8364 uses NADCON method for horizontal grid (.las/.los files)
but this format is not supported by PROJ.
UGKK (Slovak Geodetic and Cartographic Institute) provides NADCON .las/.los files here:
https://www.geoportal.sk/files/gz/slovakia_jtsk03_to_jtsk.zip
Additionally UGKK also provides the same grid file in NTv2 format:
https://www.geoportal.sk/files/gz/slovakia_jtsk03_to_jtsk_ntv2.zip
So let's add the NTv2 file the grid_alternatives table so that PROJ can automatically pick it up...
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Fixes #1913
AuthorityFactory::createBetweenGeodeticCRSWithDatumBasedIntermediates() issued
a complex SQL query that pushes the SQLite3 query plan optimizer to its limits.
Was working reasonably with sqlite 3.11, but not with later versions.
So put less constraints in the main query and do post-processing checks and
auxiliary requests to avoid such issues.
For some unknown reason, this slightly slows down a bit execution time of the
whole test_cpp_api binary (~ 10%), but couldn't come with something better,
despite trying many variations of the main SQL query. It seems that in the
general case the non-filter LEFT JOIN on the supersession table helped,
except on this EPSG:7842 case.
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using the non-deprecated EPSG:9327 for the geocentric translation
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(gr3df97a.txt) and map them to new +proj=xyzgridshift
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in the EPSG/grid_transformation table
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* EPSG:9282 uses rdtrans2018.gsb
* EPSG:9283 uses nlgeo2018.gtx
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grid_alternatives, fix related entries and simplify/robustify logic to deal with EPSG 'Geographic3D to GravityRelatedHeight' methods
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Fixes #1867
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As on import of EPSG, we remove the supersession of Canadian NTv1 file w.r.t NTv2
(because the default behaviour of PROJ is to ignore superseded operations). However
the NTv1 operation is advertized with an accuracy of 1m, whereas NTv2 is advertized
with 1.5m. Consequently on areas where both files are valid, and if both files are
available, NTv1 would be selected. So as a workaround, worsen the NTv1 accuracy to
2m so that NTv2 is used in priority.
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CONSTRAINT CHECK
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source/target CRS one
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entries in grid_alternatives.sql
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mapping between CGQ77-98.gsb and CQ77SCRS.GSB
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https://github.com/OSGeo/proj-datumgrid/pull/91 (#1796)
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https://github.com/OSGeo/proj-datumgrid/pull/89) (#1791)
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Database: register 100800401.gsb for Catalonia ED50 -> ETRS89
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rouault/grid_alternatives_use_precision_package_versions
grid_alernatives.sql: point to specific revisions of the proj-datumgrid-XXXX packages
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Make EPSG:102100 resolve to ESRI:102100 (fixes #1730)
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Update grid_alternatives.sql for Icelandic grids
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Refs https://github.com/OSGeo/proj-datumgrid/pull/88
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packages
Due to potential future shift to GTiff format, we don't want users of PROJ 6.3
being pointed to grids they won't be able to use.
So point to
- proj-datumgrid-1.8: already existing, unlikely to change before 6.3
- proj-datumgrid-north-america-1.3: to be released
- proj-datumgrid-europe-1.5: to be released
- proj-datumgrid-oceania-1.1: to be released
- proj-datumgrid-world-1.0: already existing, unlikely to change before 6.3
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https://github.com/OSGeo/proj-datumgrid/pull/73
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https://github.com/OSGeo/proj-datumgrid/pull/72
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Related to https://github.com/OSGeo/proj-datumgrid/pull/66
Tune operation search so that it can work with Geog2D <--> VertCS for commandline
niceness
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Database: register the BWTA2017.gsb grid (DHDN->ETRS89 for Baden-Wurtemberg)
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Relates to https://github.com/OSGeo/proj-datumgrid/pull/65 ,
https://github.com/OSGeo/proj-datumgrid/issues/22
As EPSG has no entry for it, we create a grid_transformation, as well as a
dedicated area of use based on the extent of the grid, under the PROJ authority.
With the hope to be able to remove it once EPSG has an entry...
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Co-Authored-By: Even Rouault <even.rouault@spatialys.com>
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Co-Authored-By: Even Rouault <even.rouault@spatialys.com>
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Updated the grid_alternatives.sql
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Database: register Canadian provincial horizontal shift grids
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Database: reference GDA94_GDA2020_conformal_christmas_island.gsb and …
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GDA94_GDA2020_conformal_christmas_island.gsb
Related to https://github.com/OSGeo/proj-datumgrid/pull/62
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proj-datumgrid
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