The is for the detailed research? Are you in position to make a big report (preferably with sample data attached as that is often frustrating to procure).
On Thu, May 23, 2019 at 1:12 AM DIOT Clément <[email protected]> wrote: > Hi all, > > > > I just suscribed to this user group to share with you an issue and the > solution. > > > > Situation : > > - Geoserver 2.12.3 (olders have been tested too with same > observations) > > - A first layer is created to load a shape projected in 27572 > > - A second one is created to load a raster projected in 2154 > > - An agregation is created to mix these two layers, projected in > 27572. > > > > Problem : > > - The shape is not well placed on the raster, not very far but > not good. > > > > If I compare the definition of the projection and the projection on > https://epsg.io/, I can see that there is some differences (parameters > TOWGS84 is missing, some values are differents…). > > I can then use epsg_overrides.properties to define the projection given in > epsg.io. > > Unfortunately, the result is worst. > > > > After further try, I mixed the native parameters of 27572 known in > GeoServer and official parameters given on epsg.io and obtain something > good : > > > > 27572=PROJCS["NTF (Paris) / Lambert zone II",GEOGCS["NTF > (Paris)",DATUM["Nouvelle_Triangulation_Francaise_Paris",SPHEROID["Clarke > 1880 > (IGN)",6378249.2,293.4660212936269,AUTHORITY["EPSG","7011"]],TOWGS84[-168,-60,320,0,0,0,0],AUTHORITY["EPSG","6807"]],PRIMEM["Paris", > 2.5969213, > AUTHORITY["EPSG","8903"]],UNIT["grade",0.015707963267948967],AXIS["Geodetic > longitude", EAST],AXIS["Geodetic latitude", > NORTH],AUTHORITY["EPSG","4807"]],PROJECTION["Lambert_Conformal_Conic_1SP", > AUTHORITY["EPSG","9801"]],PARAMETER["central_meridian", > 0.0],PARAMETER["latitude_of_origin", 52.0],PARAMETER["scale_factor", > 0.99987742],PARAMETER["false_easting", > 600000.0],PARAMETER["false_northing", 2200000.0],UNIT["m", > 1.0],AXIS["Easting", EAST],AXIS["Northing", > NORTH],AUTHORITY["EPSG","27572"]] > > > > I hope it could help. > > > > Clément > > > > [image: background] > > > > *Clément Diot* > __________ > SYSTEL SA > > [image: logo] <http://www.systel-sa.fr/> > > [email protected] > > Phone: +33 5 46 44 57 20 > > > > > > > _______________________________________________ > Geoserver-users mailing list > > Please make sure you read the following two resources before posting to > this list: > - Earning your support instead of buying it, but Ian Turton: > http://www.ianturton.com/talks/foss4g.html#/ > - The GeoServer user list posting guidelines: > http://geoserver.org/comm/userlist-guidelines.html > > If you want to request a feature or an improvement, also see this: > https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer > > > [email protected] > https://lists.sourceforge.net/lists/listinfo/geoserver-users > -- -- Jody Garnett
_______________________________________________ Geoserver-users mailing list Please make sure you read the following two resources before posting to this list: - Earning your support instead of buying it, but Ian Turton: http://www.ianturton.com/talks/foss4g.html#/ - The GeoServer user list posting guidelines: http://geoserver.org/comm/userlist-guidelines.html If you want to request a feature or an improvement, also see this: https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer [email protected] https://lists.sourceforge.net/lists/listinfo/geoserver-users
