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| author | Even Rouault <even.rouault@spatialys.com> | 2019-12-26 12:05:17 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-12-26 12:05:17 +0100 |
| commit | 6c0b5d9ec42d66889a5d1aa12a3f197a0b67514c (patch) | |
| tree | 3bf728a3c07afc0161b62219da572f29b06fa45a /data/sql/customizations.sql | |
| parent | d71a6ce9094daac790daf828e6148c99c30c3ed3 (diff) | |
| parent | b8f8a708c2299ba55b3d4754aa75633e3ee5897b (diff) | |
| download | PROJ-6c0b5d9ec42d66889a5d1aa12a3f197a0b67514c.tar.gz PROJ-6c0b5d9ec42d66889a5d1aa12a3f197a0b67514c.zip | |
Merge pull request #1812 from rouault/tune_canadian_ntv1_ntv2
Database: tune accuracy of Canadian NTv1 file w.r.t NTv2
Diffstat (limited to 'data/sql/customizations.sql')
| -rw-r--r-- | data/sql/customizations.sql | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/data/sql/customizations.sql b/data/sql/customizations.sql index 8003c921..86d49b09 100644 --- a/data/sql/customizations.sql +++ b/data/sql/customizations.sql @@ -26,6 +26,17 @@ UPDATE grid_transformation SET interpolation_crs_auth_name = 'EPSG', interpolation_crs_code = '4289' WHERE auth_name = 'EPSG' AND code = '7001'; +-- EPSG:1312 'NAD27 to NAD83 (3)' / NTv1_0.gsb has a accuracy of 1m whereas +-- EPSG:1313 'NAD27 to NAD83 (4)' / NTv2_0.gsb has a accuracy of 1.5m +-- so we will never select automatically NTv2_0.gsb. Worse the advertize +-- accuracy of the NTv1 method + +UPDATE grid_transformation SET accuracy = 2.0 WHERE auth_name = 'EPSG' AND code = '1312'; + +-- Same for EPSG:1462 vs EPSG:1573 + +UPDATE grid_transformation SET accuracy = 2.0 WHERE auth_name = 'EPSG' AND code = '1462'; + -- Define the allowed authorities, and their precedence, when researching a -- coordinate operation |