Re: [Geotools-devel] Help with GeoTools : Trouble transforming coordinates

2024-08-04 Thread Jody Garnett
/gdal/osr/SpatialReference.html > > > > *From:* Mourad HARMIM > *Sent:* Friday, August 2, 2024 12:05 AM > *To:* Ian Turton > *Cc:* geotools-devel@lists.sourceforge.net; > geotools-gt2-us...@lists.sourceforge.net > *Subject:* Re: [Geotools-devel] Help with GeoTools

Re: [Geotools-devel] Help with GeoTools : Trouble transforming coordinates

2024-08-04 Thread Phil Scadden
@lists.sourceforge.net; geotools-gt2-us...@lists.sourceforge.net Subject: Re: [Geotools-devel] Help with GeoTools : Trouble transforming coordinates CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is

Re: [Geotools-devel] Help with GeoTools : Trouble transforming coordinates

2024-08-01 Thread Mourad HARMIM
@lists.sourceforge.net Objet : Re: [Geotools-devel] Help with GeoTools : Trouble transforming coordinates >From a quick look on epsg.io<http://epsg.io> there seems not to be a direct >transform from 27572 to 2154 so that is why the TOWGS or Bursa Wolf transform >is needed.

Re: [Geotools-devel] Help with GeoTools : Trouble transforming coordinates

2024-08-01 Thread Ian Turton
>From a quick look on epsg.io there seems not to be a direct transform from *27572 *to* 2154 *so that is why the TOWGS or Bursa Wolf transform is needed. These would appear to have a 2m accuracy so some transformation error is to be expected. If you have a grid shift or other transformation file a

Re: [Geotools-devel] Help with GeoTools : Trouble transforming coordinates

2024-07-31 Thread Mourad HARMIM
: Jody Garnett Objet : RE: [Geotools-devel] Help with GeoTools : Trouble transforming coordinates Hello Jody, Thank you for your early reply. I actually added the dependency gt-epsg-hsql where the thecoordinate references are supposed to be. I also tried passing wkt definitions (which

Re: [Geotools-devel] Help with GeoTools : Trouble transforming coordinates

2024-07-14 Thread Jody Garnett
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 curio

[Geotools-devel] Help with GeoTools : Trouble transforming coordinates

2024-07-14 Thread Mourad HARMIM
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 situa