EPSG:18234

India zone IVa (1975 metres)

Attributes

Data source: EPSG

Revision date: 2023-11-22

Scope: Engineering survey, topographic mapping.

Remarks: BEWARE ! Different yard to metre conversion values have been used in different parts of south Asia. Some areas have changed conversion value with time.

Method: Lambert Conic Conformal (1SP)

Area of use: India - mainland onshore south of 15°N.

Description: (0,)

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India - mainland onshore south of 15°N.

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Definition: OGC Well Known Text

PROJECTION["Lambert_Conformal_Conic_1SP"],
PARAMETER["latitude_of_origin",12],
PARAMETER["central_meridian",80],
PARAMETER["scale_factor",0.99878641],
PARAMETER["false_easting",2743195.5],
PARAMETER["false_northing",914398.5]

Definition: OGC Well Known Text 2 (2019)

CONVERSION["India zone IVa (1975 metres)",
    METHOD["Lambert Conic Conformal (1SP)",
        ID["EPSG",9801]],
    PARAMETER["Latitude of natural origin",12,
        ANGLEUNIT["degree",0.0174532925199433],
        ID["EPSG",8801]],
    PARAMETER["Longitude of natural origin",80,
        ANGLEUNIT["degree",0.0174532925199433],
        ID["EPSG",8802]],
    PARAMETER["Scale factor at natural origin",0.99878641,
        SCALEUNIT["unity",1],
        ID["EPSG",8805]],
    PARAMETER["False easting",2743195.5,
        LENGTHUNIT["metre",1],
        ID["EPSG",8806]],
    PARAMETER["False northing",914398.5,
        LENGTHUNIT["metre",1],
        ID["EPSG",8807]],
    ID["EPSG",18234]]

Definition: ESRI Well Known Text

PROJECTION["Lambert_Conformal_Conic"],
PARAMETER["False_Easting",2743195.5],
PARAMETER["False_Northing",914398.5],
PARAMETER["Central_Meridian",80.0],
PARAMETER["Standard_Parallel_1",12.0],
PARAMETER["Scale_Factor",0.99878641],
PARAMETER["Latitude_Of_Origin",12.0]

Definition: PROJ.4

+proj=lcc +lat_1=12 +lat_0=12 +lon_0=80 +k_0=0.99878641 +x_0=2743195.5 +y_0=914398.5

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:18234","+proj=lcc +lat_1=12 +lat_0=12 +lon_0=80 +k_0=0.99878641 +x_0=2743195.5 +y_0=914398.5");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Conversion",
    "name": "India zone IVa (1975 metres)",
    "method": {
        "name": "Lambert Conic Conformal (1SP)",
        "id": {
            "authority": "EPSG",
            "code": 9801
        }
    },
    "parameters": [
        {
            "name": "Latitude of natural origin",
            "value": 12,
            "unit": "degree",
            "id": {
                "authority": "EPSG",
                "code": 8801
            }
        },
        {
            "name": "Longitude of natural origin",
            "value": 80,
            "unit": "degree",
            "id": {
                "authority": "EPSG",
                "code": 8802
            }
        },
        {
            "name": "Scale factor at natural origin",
            "value": 0.99878641,
            "unit": "unity",
            "id": {
                "authority": "EPSG",
                "code": 8805
            }
        },
        {
            "name": "False easting",
            "value": 2743195.5,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8806
            }
        },
        {
            "name": "False northing",
            "value": 914398.5,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8807
            }
        }
    ],
    "id": {
        "authority": "EPSG",
        "code": 18234
    }
}

Definition: GeoServer

18234=PROJECTION["Lambert_Conformal_Conic_1SP"],PARAMETER["latitude_of_origin",12],PARAMETER["central_meridian",80],PARAMETER["scale_factor",0.99878641],PARAMETER["false_easting",2743195.5],PARAMETER["false_northing",914398.5]

Definition: MapServer - MAPfile

PROJECTION
	"proj=lcc"
	"lat_1=12"
	"lat_0=12"
	"lon_0=80"
	"k_0=0.99878641"
	"x_0=2743195.5"
	"y_0=914398.5"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=lcc +lat_1=12 +lat_0=12 +lon_0=80 +k_0=0.99878641 +x_0=2743195.5 +y_0=914398.5">
	<Layer srs="+proj=lcc +lat_1=12 +lat_0=12 +lon_0=80 +k_0=0.99878641 +x_0=2743195.5 +y_0=914398.5">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 18234, 'EPSG', 18234, '+proj=lcc +lat_1=12 +lat_0=12 +lon_0=80 +k_0=0.99878641 +x_0=2743195.5 +y_0=914398.5', 'PROJECTION["Lambert_Conformal_Conic_1SP"],PARAMETER["latitude_of_origin",12],PARAMETER["central_meridian",80],PARAMETER["scale_factor",0.99878641],PARAMETER["false_easting",2743195.5],PARAMETER["false_northing",914398.5]');