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Hi Marco, I'm sure I'm doing something wrong, can you help me understand? I compiled qgis with this commit, but when I add two layers (with otfr on) that match one of the transformations that were added, then in the dialog I don't see anything that seems allow to choose the ntv2 grid transformation.
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Hi Giovanni
What is the layer srs / destination srs you are using and what is the ntv2 transformation you are expecting to use?
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Hi Marco, here you'll find 3 sample vectors (the number in the name is the EPSG code)
https://www.dropbox.com/s/0qan6vv0e6umeqx/tests_datum_shift_qgis.tar.gz
If the project is defined in EPSG 3763 and I add the vector in EPSG 27493, the datum shift dialog shows but I can't see the one with the grid that should have been added in this commit
INSERT INTO tbl_datum_transform (
coord_op_code,
source_crs_code,
target_crs_code,
coord_op_method_code,
p1
)
VALUES (
100003,
27493,
3763,
9615,
'pt73_e89.gsb'
);
when instead I add a layer in EPSG 20790 I can't see any datum shift dialog (and I would expect to see it).
cheers!
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Hi Giovanni
In the srs.db, the srs id of the related geographical crses need to be inserted (the projected ones are not important for datum transformation). Seems this is:
epsg:4274 for epsg: 27493
epsg:4258 for epsg:3763
epsg:4803 for epsg:20790 and epsg:20791
Is this correct? If yes, I'm going to adapt the srs.db with it.
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Hi Marco,
the first 2 are correct (4274 and 4258), the third one is 4207 (the one for epsg:20790 and epsg:20791).
Thanks!