The user list is the right place to ask.
I do not work on the coordinate reference system so much myself, there is a
handy guide for configuring here:
https://docs.geoserver.org/main/en/user/configuration/crshandling/index.html
Using this approach you can provide the transform, however I am curious why
GeoTools does not have the required information. Are you using
gt-epsg-shall for definitions or the wkt one?
If you look up online can you compare the information to what is included
in GeoTools?
--
Jody Garnett
On Sun, Jul 14, 2024 at 5:31 PM Mourad HARMIM <mourad.har...@live.fr> wrote:
> Hello everyone,
> I hope this message finds you well.
>
> My name is Mourad Harmim, a Data Engineer consultant from France.
> Still getting used to GeoTools, I’m facing an issue when I try to
> transform coordinates from *Lambert 2 extended (EPSG :27572) to Lambert
> 93 (EPSE :2154).*
>
> Here is my current situation :
>
> - When I use : *this.mathTransform =
> CRS.findMathTransform(CRS.decode("EPSG:27572") , CRS.decode("EPSG:2154"),
> false)* there is an error telling that Bursa Wolf parameters are
> missing
> - When I use : *this.mathTransform =
> CRS.findMathTransform(CRS.decode("EPSG:27572") , CRS.decode("EPSG:2154"),
> true)* I get coordinates but they seem inaccurate (I guess it is about
> a missing grid shift)
> - When I use intermediate system : *Lambert 2 extended (EPSG :27572)
> to WSG84 (EPSG:4326) to Lambert 93 (EPSE :2154)* I get better results
> but still inaccurate.
>
>
> I would like to know what it is the correct approch to have an accurate
> transformation between these two systems.
>
> I hope that it is not inappropriate to ask for your help through this
> email and I hope to hear from you soon.
> Thank you.
>
> Mourad Harmim.
> _______________________________________________
> GeoTools-Devel mailing list
> GeoTools-Devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/geotools-devel
>
_______________________________________________
GeoTools-Devel mailing list
GeoTools-Devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/geotools-devel
