ETRS89-xxx to ETRS89-yyy related improvements #4668
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rouault
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Feb 10, 2026
rouault
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- Database: anticipate upcoming addition of ETRS89-xxx national realizations to the ETRS89 datum ensemble to synthetize null Helmert transformations between ETRS89 and ETRS89-XXX with accuracy of 0.1 m
- When doing ETRS89-xxx to ETRS89-yyy, prefer going through ETRF2000 than ETRS89 (when both ways have the same accuracy), as suggested by EPSG Guidance Note 7-7 (ETRS89 in the EPSG Dataset)
- Database: anticipate upcoming addition of ETRS89-xxx national realizations to the ETRS89 datum ensemble to synthetize null Helmert transformations between ETRS89 and ETRS89-XXX with accuracy of 0.1 m - When doing ETRS89-xxx to ETRS89-yyy, prefer going through ETRF2000 than ETRS89 (when both ways have the same accuracy), as suggested by EPSG Guidance Note 7-7 (ETRS89 in the EPSG Dataset)
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