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Method: Coordinate Frame rotation (geog2D domain)
Remarks: Parameter values from BD72 to ETRS89 (2) (code 15748). Scale difference is given by information source as 1.0000012747. Given in this record in ppm to assist application usage.
Information source: IGN Brussels www.ngi.be
Revision date: 2006-07-23
Unit: metre
Geodetic CRS: BD72
Datum: Reseau National Belge 1972
Ellipsoid: International 1924
Prime meridian: Greenwich
Data source: EPSG
Information source: IGN Brussels; www.ngi.be/
Revision date: 2021-06-17
Scope: Engineering survey, topographic mapping.
Remarks: Replaces 21500 (BD50 / Belge Lambert 50). An alternative - BD72 / Belgian Lambert 72 (code 31370) - was introduced in 2000 to use the standard Lambert Conic Conformal (2SP) projection method (code 9802). EPSG recommends this alternative.
Area of use: Belgium - onshore.
Coordinate system: Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: m.
&stroke=red&width=2&path=49.5,2.23|51.88,2.23|51.88,6.4|49.5,6.4|49.5,2.23)
Center coordinates
147005.26 153299.01
Projected bounds:
-4091.49 20936.48
297956.93 287793.98
WGS84 bounds:
2.23 49.5
6.4 51.88
Definition: OGC Well Known Text
PROJCS["BD72 / Belge Lambert 72", GEOGCS["BD72", DATUM["Reseau_National_Belge_1972", SPHEROID["International 1924",6378388,297], TOWGS84[-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,1.2747]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4313"]], PROJECTION["Lambert_Conformal_Conic_2SP_Belgium"], PARAMETER["latitude_of_origin",90], PARAMETER["central_meridian",4.35693972222222], PARAMETER["standard_parallel_1",49.8333333333333], PARAMETER["standard_parallel_2",51.1666666666667], PARAMETER["false_easting",150000.01256], PARAMETER["false_northing",5400088.4378], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["EPSG","31300"]]
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ PROJCRS["BD72 / Belge Lambert 72", BASEGEOGCRS["BD72", DATUM["Reseau National Belge 1972", ELLIPSOID["International 1924",6378388,297, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4313]], CONVERSION["Belge Lambert 72", METHOD["Lambert Conic Conformal (2SP Belgium)", ID["EPSG",9803]], PARAMETER["Latitude of false origin",90, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8821]], PARAMETER["Longitude of false origin",4.35693972222222, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8822]], PARAMETER["Latitude of 1st standard parallel",49.8333333333333, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8823]], PARAMETER["Latitude of 2nd standard parallel",51.1666666666667, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8824]], PARAMETER["Easting at false origin",150000.01256, LENGTHUNIT["metre",1], ID["EPSG",8826]], PARAMETER["Northing at false origin",5400088.4378, 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["Engineering survey, topographic mapping."], AREA["Belgium - onshore."], BBOX[49.5,2.5,51.51,6.4]], ID["EPSG",31300]]], TARGETCRS[ GEOGCRS["WGS 84", ENSEMBLE["World Geodetic System 1984 ensemble", MEMBER["World Geodetic System 1984 (Transit)"], MEMBER["World Geodetic System 1984 (G730)"], MEMBER["World Geodetic System 1984 (G873)"], MEMBER["World Geodetic System 1984 (G1150)"], MEMBER["World Geodetic System 1984 (G1674)"], MEMBER["World Geodetic System 1984 (G1762)"], MEMBER["World Geodetic System 1984 (G2139)"], ELLIPSOID["WGS 84",6378137,298.257223563, LENGTHUNIT["metre",1]], ENSEMBLEACCURACY[2.0]], 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["Horizontal component of 3D system."], AREA["World."], BBOX[-90,-180,90,180]], ID["EPSG",4326]]], ABRIDGEDTRANSFORMATION["Transformation from unknown to WGS84", METHOD["Position Vector transformation (geog2D domain)", ID["EPSG",9606]], PARAMETER["X-axis translation",-106.8686, ID["EPSG",8605]], PARAMETER["Y-axis translation",52.2978, ID["EPSG",8606]], PARAMETER["Z-axis translation",-103.7239, ID["EPSG",8607]], PARAMETER["X-axis rotation",-0.3366, ID["EPSG",8608]], PARAMETER["Y-axis rotation",0.457, ID["EPSG",8609]], PARAMETER["Z-axis rotation",-1.8422, ID["EPSG",8610]], PARAMETER["Scale difference",1.0000012747, ID["EPSG",8611]]]]
Definition: ESRI Well Known Text
PROJCS["BD72_Belge_Lambert_72", GEOGCS["GCS_Belge_1972", DATUM["D_Belge_1972", SPHEROID["International_1924",6378388.0,297.0]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Lambert_Conformal_Conic_2SP_Belgium"], PARAMETER["latitude_of_origin",90.0], PARAMETER["central_meridian",4.35693972222222], PARAMETER["standard_parallel_1",49.8333333333333], PARAMETER["standard_parallel_2",51.1666666666667], PARAMETER["false_easting",150000.01256], PARAMETER["false_northing",5400088.4378], UNIT["Meter",1.0]]
Definition: JavaScript (Proj4js)
proj4.defs("EPSG:31300","+proj=lcc +lat_0=90 +lon_0=4.35693972222222 +lat_1=49.8333333333333 +lat_2=51.1666666666667 +x_0=150000.01256 +y_0=5400088.4378 +ellps=intl +towgs84=-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,1.2747 +units=m +no_defs +type=crs");
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "ProjectedCRS", "name": "BD72 / Belge Lambert 72", "base_crs": { "name": "BD72", "datum": { "type": "GeodeticReferenceFrame", "name": "Reseau National Belge 1972", "ellipsoid": { "name": "International 1924", "semi_major_axis": 6378388, "inverse_flattening": 297 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 4313 } }, "conversion": { "name": "Belge Lambert 72", "method": { "name": "Lambert Conic Conformal (2SP Belgium)", "id": { "authority": "EPSG", "code": 9803 } }, "parameters": [ { "name": "Latitude of false origin", "value": 90, "unit": "degree", "id": { "authority": "EPSG", "code": 8821 } }, { "name": "Longitude of false origin", "value": 4.35693972222222, "unit": "degree", "id": { "authority": "EPSG", "code": 8822 } }, { "name": "Latitude of 1st standard parallel", "value": 49.8333333333333, "unit": "degree", "id": { "authority": "EPSG", "code": 8823 } }, { "name": "Latitude of 2nd standard parallel", "value": 51.1666666666667, "unit": "degree", "id": { "authority": "EPSG", "code": 8824 } }, { "name": "Easting at false origin", "value": 150000.01256, "unit": "metre", "id": { "authority": "EPSG", "code": 8826 } }, { "name": "Northing at false origin", "value": 5400088.4378, "unit": "metre", "id": { "authority": "EPSG", "code": 8827 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": "metre" }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 31300 } }, "target_crs": { "type": "GeographicCRS", "name": "WGS 84", "datum_ensemble": { "name": "World Geodetic System 1984 ensemble", "members": [ { "name": "World Geodetic System 1984 (Transit)", "id": { "authority": "EPSG", "code": 1166 } }, { "name": "World Geodetic System 1984 (G730)", "id": { "authority": "EPSG", "code": 1152 } }, { "name": "World Geodetic System 1984 (G873)", "id": { "authority": "EPSG", "code": 1153 } }, { "name": "World Geodetic System 1984 (G1150)", "id": { "authority": "EPSG", "code": 1154 } }, { "name": "World Geodetic System 1984 (G1674)", "id": { "authority": "EPSG", "code": 1155 } }, { "name": "World Geodetic System 1984 (G1762)", "id": { "authority": "EPSG", "code": 1156 } }, { "name": "World Geodetic System 1984 (G2139)", "id": { "authority": "EPSG", "code": 1309 } } ], "ellipsoid": { "name": "WGS 84", "semi_major_axis": 6378137, "inverse_flattening": 298.257223563 }, "accuracy": "2.0", "id": { "authority": "EPSG", "code": 6326 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 4326 } }, "transformation": { "name": "Transformation from unknown to WGS84", "method": { "name": "Position Vector transformation (geog2D domain)", "id": { "authority": "EPSG", "code": 9606 } }, "parameters": [ { "name": "X-axis translation", "value": -106.8686, "unit": "metre", "id": { "authority": "EPSG", "code": 8605 } }, { "name": "Y-axis translation", "value": 52.2978, "unit": "metre", "id": { "authority": "EPSG", "code": 8606 } }, { "name": "Z-axis translation", "value": -103.7239, "unit": "metre", "id": { "authority": "EPSG", "code": 8607 } }, { "name": "X-axis rotation", "value": -0.3366, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8608 } }, { "name": "Y-axis rotation", "value": 0.457, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8609 } }, { "name": "Z-axis rotation", "value": -1.8422, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8610 } }, { "name": "Scale difference", "value": 1.2747, "unit": { "type": "ScaleUnit", "name": "parts per million", "conversion_factor": 1e-06 }, "id": { "authority": "EPSG", "code": 8611 } } ] } }
Definition: GeoServer
31300=PROJCS["BD72 / Belge Lambert 72",GEOGCS["BD72",DATUM["Reseau_National_Belge_1972",SPHEROID["International 1924",6378388,297],TOWGS84[-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,1.2747]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4313"]],PROJECTION["Lambert_Conformal_Conic_2SP_Belgium"],PARAMETER["latitude_of_origin",90],PARAMETER["central_meridian",4.35693972222222],PARAMETER["standard_parallel_1",49.8333333333333],PARAMETER["standard_parallel_2",51.1666666666667],PARAMETER["false_easting",150000.01256],PARAMETER["false_northing",5400088.4378],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","31300"]]
Definition: MapServer - MAPfile
PROJECTION "proj=lcc" "lat_0=90" "lon_0=4.35693972222222" "lat_1=49.8333333333333" "lat_2=51.1666666666667" "x_0=150000.01256" "y_0=5400088.4378" "ellps=intl" "towgs84=-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,1.2747" "units=m" "no_defs" "type=crs" END
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=lcc +lat_0=90 +lon_0=4.35693972222222 +lat_1=49.8333333333333 +lat_2=51.1666666666667 +x_0=150000.01256 +y_0=5400088.4378 +ellps=intl +towgs84=-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,1.2747 +units=m +no_defs +type=crs"> <Layer srs="+proj=lcc +lat_0=90 +lon_0=4.35693972222222 +lat_1=49.8333333333333 +lat_2=51.1666666666667 +x_0=150000.01256 +y_0=5400088.4378 +ellps=intl +towgs84=-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,1.2747 +units=m +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 31300, 'EPSG', 31300, '+proj=lcc +lat_0=90 +lon_0=4.35693972222222 +lat_1=49.8333333333333 +lat_2=51.1666666666667 +x_0=150000.01256 +y_0=5400088.4378 +ellps=intl +towgs84=-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,1.2747 +units=m +no_defs +type=crs', 'PROJCS["BD72 / Belge Lambert 72",GEOGCS["BD72",DATUM["Reseau_National_Belge_1972",SPHEROID["International 1924",6378388,297],TOWGS84[-106.8686,52.2978,-103.7239,-0.3366,0.457,-1.8422,1.2747]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4313"]],PROJECTION["Lambert_Conformal_Conic_2SP_Belgium"],PARAMETER["latitude_of_origin",90],PARAMETER["central_meridian",4.35693972222222],PARAMETER["standard_parallel_1",49.8333333333333],PARAMETER["standard_parallel_2",51.1666666666667],PARAMETER["false_easting",150000.01256],PARAMETER["false_northing",5400088.4378],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","31300"]]');
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