Le 04/03/2026 à 18:09, Javier Jimenez Shaw via PROJ a écrit :
Hi Antonio.
On Tue, 3 Mar 2026 at 19:25, Antonio Valanzano via PROJ
<[email protected]> wrote:
I have used for the first time cs2cs and I have found not easy to
discover which transformation the sw uses for the calculations.
Here are my questions:
1. Is it possible for cs2cs to output not only the results but also
the EPSG code of the transformation(s) used to produce the output ?
This information could be useful for users in order to have more
control over the transformations and avoid using the sw as a black
box.
There is projinfo https://proj.org/en/stable/apps/projinfo.html , that
can give you similar information. But it would be nice to have an
option in cs2cs that prints the last operation used calling
"proj_trans_get_last_used_operation".
That way the user can know "exactly" the operation performed.
$ echo 49 15 | PROJ_NETWORK=ON PROJ_DEBUG=2 bin/cs2cs EPSG:4258
EPSG:5514+8357 --3d
[...]
Using coordinate operation ETRS89 to S-JTSK / Krovak East North + Baltic
1957 height
[...]
-717321.47 -1168433.34 -46.13
--
http://www.spatialys.com
My software is free, but my time generally not.
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