EPSG:4275

NTF

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Center coordinates
1.68072021 46.73505451

WGS84 bounds:
-4.87 42.33
8.23 51.14

Selected transformation

France - mainland onshore.

code 15942

Accuracy 1.0 m
grid file

Method: NTv2

Remarks: These parameter values are taken from NTF to RGR93 (2) (code 15940) as RGR93 may be considered equivalent to WGS 84 within the accuracy of the transformation. Emulation of France Geocentric Interpolation method tfm code 15939.

Information source: OGP

Revision date: 2007-05-29

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: NTF

Datum: Nouvelle Triangulation Francaise

Ellipsoid: Clarke 1880 (IGN)

Prime meridian: Greenwich

Data source: OGP

Revision date: 2010-03-30

NadGrid file: rgf93_ntf.gsb

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Definition: Well Known Text (WKT)

GEOGCS["NTF",
    DATUM["Nouvelle_Triangulation_Francaise",
        SPHEROID["Clarke 1880 (IGN)",6378249.2,293.4660212936265,
            AUTHORITY["EPSG","7011"]],
        TOWGS84[-168,-60,320,0,0,0,0],
        AUTHORITY["EPSG","6275"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4275"]]
GEOGCS["NTF",
    DATUM["Nouvelle_Triangulation_Francaise",
        SPHEROID["Clarke 1880 (IGN)",6378249.2,293.4660212936265,
            AUTHORITY["EPSG","7011"]],
        TOWGS84[-168,-60,320,0,0,0,0],
        AUTHORITY["EPSG","6275"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4275"]]

Definition: ESRI WKT

GEOGCS["NTF",DATUM["D_NTF",SPHEROID["Clarke_1880_IGN",6378249.2,293.46602]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]]

Definition: PROJ.4

+proj=longlat +a=6378249.2 +b=6356515 +towgs84=-168,-60,320,0,0,0,0 +no_defs 

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:4275","+proj=longlat +a=6378249.2 +b=6356515 +towgs84=-168,-60,320,0,0,0,0 +no_defs");

Definition: OGC GML

<?xml version="1.0" encoding="UTF-8"?>
 <gml:GeodeticCRS xmlns:epsg="urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink" gml:id="ogp-crs-4275">
   <gml:metaDataProperty>
      <epsg:CommonMetaData>
         <epsg:type>geographic 2D</epsg:type>
         <epsg:revisionDate>2010-03-30</epsg:revisionDate>
         <epsg:changes>
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2003.370" />
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2009.106" />
         </epsg:changes>
         <epsg:show>true</epsg:show>
         <epsg:isDeprecated>false</epsg:isDeprecated>
      </epsg:CommonMetaData>
   </gml:metaDataProperty>
   <gml:identifier codeSpace="OGP">urn:ogc:def:crs:EPSG::4275</gml:identifier>
   <gml:name>NTF</gml:name>
   <gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::3694" />
   <gml:scope>Geodetic survey.</gml:scope>
   <gml:ellipsoidalCS xlink:href="urn:ogc:def:cs:EPSG::6422" />
   <gml:geodeticDatum xlink:href="urn:ogc:def:datum:EPSG::6275" />
</gml:GeodeticCRS>
<?xml version="1.0" encoding="UTF-8"?>
 <gml:GeodeticCRS xmlns:epsg="urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink" gml:id="ogp-crs-4275">
   <gml:metaDataProperty>
      <epsg:CommonMetaData>
         <epsg:type>geographic 2D</epsg:type>
         <epsg:revisionDate>2010-03-30</epsg:revisionDate>
         <epsg:changes>
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2003.370" />
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2009.106" />
         </epsg:changes>
         <epsg:show>true</epsg:show>
         <epsg:isDeprecated>false</epsg:isDeprecated>
      </epsg:CommonMetaData>
   </gml:metaDataProperty>
   <gml:identifier codeSpace="OGP">urn:ogc:def:crs:EPSG::4275</gml:identifier>
   <gml:name>NTF</gml:name>
   <gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::3694" />
   <gml:scope>Geodetic survey.</gml:scope>
   <gml:ellipsoidalCS xlink:href="urn:ogc:def:cs:EPSG::6422" />
   <gml:geodeticDatum xlink:href="urn:ogc:def:datum:EPSG::6275" />
</gml:GeodeticCRS>

Definition: XML

<?xml version="1.0" encoding="UTF-8"?>
 <gml:GeographicCRS gml:id="ogrcrs2162" xmlns:gml="http://www.opengis.net/gml/3.2">
  <gml:srsName>NTF</gml:srsName>
  <gml:srsID>
    <gml:name gml:codeSpace="urn:ogc:def:crs:EPSG::">4275</gml:name>
  </gml:srsID>
  <gml:usesEllipsoidalCS>
    <gml:EllipsoidalCS gml:id="ogrcrs2163">
      <gml:csName>ellipsoidal</gml:csName>
      <gml:csID>
        <gml:name gml:codeSpace="urn:ogc:def:cs:EPSG::">6402</gml:name>
      </gml:csID>
      <gml:usesAxis>
        <gml:CoordinateSystemAxis gml:id="ogrcrs2164" gml:uom="urn:ogc:def:uom:EPSG::9102">
          <gml:name>Geodetic latitude</gml:name>
          <gml:axisID>
            <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9901</gml:name>
          </gml:axisID>
          <gml:axisAbbrev>Lat</gml:axisAbbrev>
          <gml:axisDirection>north</gml:axisDirection>
        </gml:CoordinateSystemAxis>
      </gml:usesAxis>
      <gml:usesAxis>
        <gml:CoordinateSystemAxis gml:id="ogrcrs2165" gml:uom="urn:ogc:def:uom:EPSG::9102">
          <gml:name>Geodetic longitude</gml:name>
          <gml:axisID>
            <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9902</gml:name>
          </gml:axisID>
          <gml:axisAbbrev>Lon</gml:axisAbbrev>
          <gml:axisDirection>east</gml:axisDirection>
        </gml:CoordinateSystemAxis>
      </gml:usesAxis>
    </gml:EllipsoidalCS>
  </gml:usesEllipsoidalCS>
  <gml:usesGeodeticDatum>
    <gml:GeodeticDatum gml:id="ogrcrs2166">
      <gml:datumName>Nouvelle_Triangulation_Francaise</gml:datumName>
      <gml:datumID>
        <gml:name gml:codeSpace="urn:ogc:def:datum:EPSG::">6275</gml:name>
      </gml:datumID>
      <gml:usesPrimeMeridian>
        <gml:PrimeMeridian gml:id="ogrcrs2167">
          <gml:meridianName>Greenwich</gml:meridianName>
          <gml:meridianID>
            <gml:name gml:codeSpace="urn:ogc:def:meridian:EPSG::">8901</gml:name>
          </gml:meridianID>
          <gml:greenwichLongitude>
            <gml:angle gml:uom="urn:ogc:def:uom:EPSG::9102">0</gml:angle>
          </gml:greenwichLongitude>
        </gml:PrimeMeridian>
      </gml:usesPrimeMeridian>
      <gml:usesEllipsoid>
        <gml:Ellipsoid gml:id="ogrcrs2168">
          <gml:ellipsoidName>Clarke 1880 (IGN)</gml:ellipsoidName>
          <gml:ellipsoidID>
            <gml:name gml:codeSpace="urn:ogc:def:ellipsoid:EPSG::">7011</gml:name>
          </gml:ellipsoidID>
          <gml:semiMajorAxis gml:uom="urn:ogc:def:uom:EPSG::9001">6378249.2</gml:semiMajorAxis>
          <gml:secondDefiningParameter>
            <gml:inverseFlattening gml:uom="urn:ogc:def:uom:EPSG::9201">293.4660212936265</gml:inverseFlattening>
          </gml:secondDefiningParameter>
        </gml:Ellipsoid>
      </gml:usesEllipsoid>
    </gml:GeodeticDatum>
  </gml:usesGeodeticDatum>
</gml:GeographicCRS>
<?xml version="1.0" encoding="UTF-8"?>
 <gml:GeographicCRS gml:id="ogrcrs2162" xmlns:gml="http://www.opengis.net/gml/3.2">
  <gml:srsName>NTF</gml:srsName>
  <gml:srsID>
    <gml:name gml:codeSpace="urn:ogc:def:crs:EPSG::">4275</gml:name>
  </gml:srsID>
  <gml:usesEllipsoidalCS>
    <gml:EllipsoidalCS gml:id="ogrcrs2163">
      <gml:csName>ellipsoidal</gml:csName>
      <gml:csID>
        <gml:name gml:codeSpace="urn:ogc:def:cs:EPSG::">6402</gml:name>
      </gml:csID>
      <gml:usesAxis>
        <gml:CoordinateSystemAxis gml:id="ogrcrs2164" gml:uom="urn:ogc:def:uom:EPSG::9102">
          <gml:name>Geodetic latitude</gml:name>
          <gml:axisID>
            <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9901</gml:name>
          </gml:axisID>
          <gml:axisAbbrev>Lat</gml:axisAbbrev>
          <gml:axisDirection>north</gml:axisDirection>
        </gml:CoordinateSystemAxis>
      </gml:usesAxis>
      <gml:usesAxis>
        <gml:CoordinateSystemAxis gml:id="ogrcrs2165" gml:uom="urn:ogc:def:uom:EPSG::9102">
          <gml:name>Geodetic longitude</gml:name>
          <gml:axisID>
            <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9902</gml:name>
          </gml:axisID>
          <gml:axisAbbrev>Lon</gml:axisAbbrev>
          <gml:axisDirection>east</gml:axisDirection>
        </gml:CoordinateSystemAxis>
      </gml:usesAxis>
    </gml:EllipsoidalCS>
  </gml:usesEllipsoidalCS>
  <gml:usesGeodeticDatum>
    <gml:GeodeticDatum gml:id="ogrcrs2166">
      <gml:datumName>Nouvelle_Triangulation_Francaise</gml:datumName>
      <gml:datumID>
        <gml:name gml:codeSpace="urn:ogc:def:datum:EPSG::">6275</gml:name>
      </gml:datumID>
      <gml:usesPrimeMeridian>
        <gml:PrimeMeridian gml:id="ogrcrs2167">
          <gml:meridianName>Greenwich</gml:meridianName>
          <gml:meridianID>
            <gml:name gml:codeSpace="urn:ogc:def:meridian:EPSG::">8901</gml:name>
          </gml:meridianID>
          <gml:greenwichLongitude>
            <gml:angle gml:uom="urn:ogc:def:uom:EPSG::9102">0</gml:angle>
          </gml:greenwichLongitude>
        </gml:PrimeMeridian>
      </gml:usesPrimeMeridian>
      <gml:usesEllipsoid>
        <gml:Ellipsoid gml:id="ogrcrs2168">
          <gml:ellipsoidName>Clarke 1880 (IGN)</gml:ellipsoidName>
          <gml:ellipsoidID>
            <gml:name gml:codeSpace="urn:ogc:def:ellipsoid:EPSG::">7011</gml:name>
          </gml:ellipsoidID>
          <gml:semiMajorAxis gml:uom="urn:ogc:def:uom:EPSG::9001">6378249.2</gml:semiMajorAxis>
          <gml:secondDefiningParameter>
            <gml:inverseFlattening gml:uom="urn:ogc:def:uom:EPSG::9201">293.4660212936265</gml:inverseFlattening>
          </gml:secondDefiningParameter>
        </gml:Ellipsoid>
      </gml:usesEllipsoid>
    </gml:GeodeticDatum>
  </gml:usesGeodeticDatum>
</gml:GeographicCRS>

Definition: GeoServer

4275=GEOGCS["NTF",DATUM["Nouvelle_Triangulation_Francaise",SPHEROID["Clarke 1880 (IGN)",6378249.2,293.4660212936265,AUTHORITY["EPSG","7011"]],TOWGS84[-168,-60,320,0,0,0,0],AUTHORITY["EPSG","6275"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4275"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"a=6378249.2"
	"b=6356515"
	"towgs84=-168,-60,320,0,0,0,0"
	"no_defs"
END

Definition: MapServer - Python

wkt = '''GEOGCS["NTF",DATUM["Nouvelle_Triangulation_Francaise",SPHEROID["Clarke 1880 (IGN)",6378249.2,293.4660212936265,AUTHORITY["EPSG","7011"]],TOWGS84[-168,-60,320,0,0,0,0],AUTHORITY["EPSG","6275"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4275"]]'''
m = mapObj('')
m.setWKTProjection(ref.ExportToWkt())
lyr = layerObj(m)
lyr.setWKTProjection(ref.ExportToWkt())

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +a=6378249.2 +b=6356515 +towgs84=-168,-60,320,0,0,0,0 +no_defs">
	<Layer srs="+proj=longlat +a=6378249.2 +b=6356515 +towgs84=-168,-60,320,0,0,0,0 +no_defs">
	</Layer>
</Map>

Definition: Mapnik - Python

proj4 = '+proj=longlat +a=6378249.2 +b=6356515 +towgs84=-168,-60,320,0,0,0,0 +no_defs'
m = Map(256,256,proj4)
lyr = Layer('Name',proj4)

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4275, 'EPSG', 4275, '+proj=longlat +a=6378249.2 +b=6356515 +towgs84=-168,-60,320,0,0,0,0 +no_defs ', 'GEOGCS["NTF",DATUM["Nouvelle_Triangulation_Francaise",SPHEROID["Clarke 1880 (IGN)",6378249.2,293.4660212936265,AUTHORITY["EPSG","7011"]],TOWGS84[-168,-60,320,0,0,0,0],AUTHORITY["EPSG","6275"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4275"]]');

Definition: OGC WKT

GEOGCS["NTF",DATUM["Nouvelle_Triangulation_Francaise",SPHEROID["Clarke 1880 (IGN)",6378249.2,293.4660212936265,AUTHORITY["EPSG","7011"]],TOWGS84[-168,-60,320,0,0,0,0],AUTHORITY["EPSG","6275"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4275"]]

Definition: USGS

[0, 0, (6378249.2, 6356515.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0), -1]