EPSG:18101

France Conic Conformal zone 1

Attributes

Data source: EPSG

Information source: IGN Paris.

Revision date: 2008-04-04

Scope: Cadastre, topographic mapping (large scale).

Remarks: Compliments Lambert-93. Scale factor ranges between -9 and +7 cm/km. Area of use overlaps adjacent zone.

Method: Lambert Conic Conformal (2SP)

Area of use: France onshore - mainland south of 43°N and Corsica.

Description: (0,)

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France onshore - mainland south of 43°N and Corsica.

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Definition: OGC Well Known Text

PROJECTION["Lambert_Conformal_Conic_2SP"],
PARAMETER["latitude_of_origin",42],
PARAMETER["central_meridian",3],
PARAMETER["standard_parallel_1",41.25],
PARAMETER["standard_parallel_2",42.75],
PARAMETER["false_easting",1700000],
PARAMETER["false_northing",1200000]

Definition: OGC Well Known Text 2 (2019)

CONVERSION["France Conic Conformal zone 1",
    METHOD["Lambert Conic Conformal (2SP)",
        ID["EPSG",9802]],
    PARAMETER["Latitude of false origin",42,
        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",41.25,
        ANGLEUNIT["degree",0.0174532925199433],
        ID["EPSG",8823]],
    PARAMETER["Latitude of 2nd standard parallel",42.75,
        ANGLEUNIT["degree",0.0174532925199433],
        ID["EPSG",8824]],
    PARAMETER["Easting at false origin",1700000,
        LENGTHUNIT["metre",1],
        ID["EPSG",8826]],
    PARAMETER["Northing at false origin",1200000,
        LENGTHUNIT["metre",1],
        ID["EPSG",8827]],
    ID["EPSG",18101]]

Definition: ESRI Well Known Text

PROJECTION["Lambert_Conformal_Conic"],
PARAMETER["False_Easting",1700000.0],
PARAMETER["False_Northing",1200000.0],
PARAMETER["Central_Meridian",3.0],
PARAMETER["Standard_Parallel_1",41.25],
PARAMETER["Standard_Parallel_2",42.75],
PARAMETER["Latitude_Of_Origin",42.0]

Definition: PROJ.4

+proj=lcc +lat_0=42 +lon_0=3 +lat_1=41.25 +lat_2=42.75 +x_0=1700000 +y_0=1200000

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:18101","+proj=lcc +lat_0=42 +lon_0=3 +lat_1=41.25 +lat_2=42.75 +x_0=1700000 +y_0=1200000");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Conversion",
    "name": "France Conic Conformal zone 1",
    "method": {
        "name": "Lambert Conic Conformal (2SP)",
        "id": {
            "authority": "EPSG",
            "code": 9802
        }
    },
    "parameters": [
        {
            "name": "Latitude of false origin",
            "value": 42,
            "unit": "degree",
            "id": {
                "authority": "EPSG",
                "code": 8821
            }
        },
        {
            "name": "Longitude of false origin",
            "value": 3,
            "unit": "degree",
            "id": {
                "authority": "EPSG",
                "code": 8822
            }
        },
        {
            "name": "Latitude of 1st standard parallel",
            "value": 41.25,
            "unit": "degree",
            "id": {
                "authority": "EPSG",
                "code": 8823
            }
        },
        {
            "name": "Latitude of 2nd standard parallel",
            "value": 42.75,
            "unit": "degree",
            "id": {
                "authority": "EPSG",
                "code": 8824
            }
        },
        {
            "name": "Easting at false origin",
            "value": 1700000,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8826
            }
        },
        {
            "name": "Northing at false origin",
            "value": 1200000,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8827
            }
        }
    ],
    "id": {
        "authority": "EPSG",
        "code": 18101
    }
}

Definition: GeoServer

18101=PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",42],PARAMETER["central_meridian",3],PARAMETER["standard_parallel_1",41.25],PARAMETER["standard_parallel_2",42.75],PARAMETER["false_easting",1700000],PARAMETER["false_northing",1200000]

Definition: MapServer - MAPfile

PROJECTION
	"proj=lcc"
	"lat_0=42"
	"lon_0=3"
	"lat_1=41.25"
	"lat_2=42.75"
	"x_0=1700000"
	"y_0=1200000"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=lcc +lat_0=42 +lon_0=3 +lat_1=41.25 +lat_2=42.75 +x_0=1700000 +y_0=1200000">
	<Layer srs="+proj=lcc +lat_0=42 +lon_0=3 +lat_1=41.25 +lat_2=42.75 +x_0=1700000 +y_0=1200000">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 18101, 'EPSG', 18101, '+proj=lcc +lat_0=42 +lon_0=3 +lat_1=41.25 +lat_2=42.75 +x_0=1700000 +y_0=1200000', 'PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",42],PARAMETER["central_meridian",3],PARAMETER["standard_parallel_1",41.25],PARAMETER["standard_parallel_2",42.75],PARAMETER["false_easting",1700000],PARAMETER["false_northing",1200000]');