BOUNDCRS[SOURCECRS[PROJCRS["RGF93 v1 / CC45",BASEGEOGCRS["RGF93 v1",DATUM["Reseau Geodesique Francais 1993 v1",ELLIPSOID["GRS 1980",6378137,298.257222101,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4171]],CONVERSION["France Conic Conformal zone 4",METHOD["Lambert Conic Conformal (2SP)",ID["EPSG",9802]],PARAMETER["Latitude of false origin",45,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8821]],PARAMETER["Longitude of false origin",3,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8822]],PARAMETER["Latitude of 1st standard parallel",44.25,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8823]],PARAMETER["Latitude of 2nd standard parallel",45.75,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8824]],PARAMETER["Easting at false origin",1700000,LENGTHUNIT["metre",1],ID["EPSG",8826]],PARAMETER["Northing at false origin",4200000,LENGTHUNIT["metre",1],ID["EPSG",8827]]],CS[Cartesian,2],AXIS["easting (X)",east,ORDER[1],LENGTHUNIT["metre",1]],AXIS["northing (Y)",north,ORDER[2],LENGTHUNIT["metre",1]],USAGE[SCOPE["Cadastre, engineering survey."],AREA["France - mainland onshore between 44°N and 46°N."],BBOX[44,-1.46,46,7.71]],ID["EPSG",3945]]],TARGETCRS[GEOGCRS["NTF",DATUM["Nouvelle Triangulation Francaise",ELLIPSOID["Clarke 1880 (IGN)",6378249.2,293.466021293627,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],CS[ellipsoidal,2],AXIS["geodetic latitude (Lat)",north,ORDER[1],ANGLEUNIT["degree",0.0174532925199433]],AXIS["geodetic longitude (Lon)",east,ORDER[2],ANGLEUNIT["degree",0.0174532925199433]],USAGE[SCOPE["Geodesy."],AREA["France - onshore - mainland and Corsica."],BBOX[41.31,-4.87,51.14,9.63]],ID["EPSG",4275]]],ABRIDGEDTRANSFORMATION["RGF93 v1 to NTF (2)",METHOD["NTv2",ID["EPSG",9615]],PARAMETERFILE["Latitude and longitude difference file","rgf93_ntf.gsb"],USAGE[SCOPE["Transformation of coordinates at 1m level of accuracy."],AREA["France - onshore - mainland and Corsica."],BBOX[41.31,-4.87,51.14,9.63]],ID["EPSG",15958],REMARK["Emulation using NTv2 method of NTF to RGF93 v1 (1), code 9327. Note that grid file parameters are of opposite sign. May be taken as approximate CT to ETRS89 or WGS 84 (see codes 15959 and 15960). Also used to transform later realizations of RGF93 to NTF."]]]