EPSG:5231

Sri Lanka Grid

Attributes

Data source: EPSG

Information source: Abeyratne, Featherstone and Tantrigoda in Survey Review vol. 42 no. 317 (July 2010).

Revision date: 2010-08-07

Scope: Engineering survey, topographic mapping.

Remarks: Origin is Piturutalagala triangulation point. Used with Kandawala datum.

Method: Transverse Mercator

Area of use: Sri Lanka - onshore.

Description: (0,)

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Sri Lanka - onshore.

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Definition: OGC Well Known Text

PROJECTION["Transverse_Mercator"],
PARAMETER["latitude_of_origin",7.00048027777778],
PARAMETER["central_meridian",80.7717111111111],
PARAMETER["scale_factor",0.9999238418],
PARAMETER["false_easting",200000],
PARAMETER["false_northing",200000]

Definition: OGC Well Known Text 2 (2019)

CONVERSION["Sri Lanka Grid",
    METHOD["Transverse Mercator",
        ID["EPSG",9807]],
    PARAMETER["Latitude of natural origin",7.00048027777778,
        ANGLEUNIT["degree",0.0174532925199433],
        ID["EPSG",8801]],
    PARAMETER["Longitude of natural origin",80.7717111111111,
        ANGLEUNIT["degree",0.0174532925199433],
        ID["EPSG",8802]],
    PARAMETER["Scale factor at natural origin",0.9999238418,
        SCALEUNIT["unity",1],
        ID["EPSG",8805]],
    PARAMETER["False easting",200000,
        LENGTHUNIT["metre",1],
        ID["EPSG",8806]],
    PARAMETER["False northing",200000,
        LENGTHUNIT["metre",1],
        ID["EPSG",8807]],
    ID["EPSG",5231]]

Definition: ESRI Well Known Text

PROJECTION["Transverse_Mercator"],
PARAMETER["False_Easting",200000.0],
PARAMETER["False_Northing",200000.0],
PARAMETER["Central_Meridian",80.7717111111111],
PARAMETER["Scale_Factor",0.9999238418],
PARAMETER["Latitude_Of_Origin",7.00048027777778]

Definition: PROJ.4

+proj=tmerc +lat_0=7.00048027777778 +lon_0=80.7717111111111 +k=0.9999238418 +x_0=200000 +y_0=200000

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:5231","+proj=tmerc +lat_0=7.00048027777778 +lon_0=80.7717111111111 +k=0.9999238418 +x_0=200000 +y_0=200000");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Conversion",
    "name": "Sri Lanka Grid",
    "method": {
        "name": "Transverse Mercator",
        "id": {
            "authority": "EPSG",
            "code": 9807
        }
    },
    "parameters": [
        {
            "name": "Latitude of natural origin",
            "value": 7.00048027777778,
            "unit": "degree",
            "id": {
                "authority": "EPSG",
                "code": 8801
            }
        },
        {
            "name": "Longitude of natural origin",
            "value": 80.7717111111111,
            "unit": "degree",
            "id": {
                "authority": "EPSG",
                "code": 8802
            }
        },
        {
            "name": "Scale factor at natural origin",
            "value": 0.9999238418,
            "unit": "unity",
            "id": {
                "authority": "EPSG",
                "code": 8805
            }
        },
        {
            "name": "False easting",
            "value": 200000,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8806
            }
        },
        {
            "name": "False northing",
            "value": 200000,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8807
            }
        }
    ],
    "id": {
        "authority": "EPSG",
        "code": 5231
    }
}

Definition: GeoServer

5231=PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",7.00048027777778],PARAMETER["central_meridian",80.7717111111111],PARAMETER["scale_factor",0.9999238418],PARAMETER["false_easting",200000],PARAMETER["false_northing",200000]

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=7.00048027777778"
	"lon_0=80.7717111111111"
	"k=0.9999238418"
	"x_0=200000"
	"y_0=200000"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=tmerc +lat_0=7.00048027777778 +lon_0=80.7717111111111 +k=0.9999238418 +x_0=200000 +y_0=200000">
	<Layer srs="+proj=tmerc +lat_0=7.00048027777778 +lon_0=80.7717111111111 +k=0.9999238418 +x_0=200000 +y_0=200000">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 5231, 'EPSG', 5231, '+proj=tmerc +lat_0=7.00048027777778 +lon_0=80.7717111111111 +k=0.9999238418 +x_0=200000 +y_0=200000', 'PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",7.00048027777778],PARAMETER["central_meridian",80.7717111111111],PARAMETER["scale_factor",0.9999238418],PARAMETER["false_easting",200000],PARAMETER["false_northing",200000]');