EPSG
US Army Map Service projection tables; 1943.
1999-10-20
Engineering survey, topographic mapping.
BEWARE ! Different yard to metre conversion values have been used in different parts of south Asia. Some areas have changed conversion value with time.
Bangladesh - onshore south of 21°N; Myanmar (Burma) - onshore between 15°N and 21°N.
(0,)
Definition: OGC Well Known Text
PROJECTION["Lambert_Conformal_Conic_1SP"], PARAMETER["latitude_of_origin",19], PARAMETER["central_meridian",100], PARAMETER["scale_factor",0.99878641], PARAMETER["false_easting",2743195.59223332], PARAMETER["false_northing",914398.530744441]
Definition: OGC Well Known Text 2 (2019)
CONVERSION["India zone IIIb", METHOD["Lambert Conic Conformal (1SP)", ID["EPSG",9801]], PARAMETER["Latitude of natural origin",19, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",100, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",0.99878641, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",3000000, LENGTHUNIT["Indian yard",0.914398530744441], ID["EPSG",8806]], PARAMETER["False northing",1000000, LENGTHUNIT["Indian yard",0.914398530744441], ID["EPSG",8807]], ID["EPSG",18115]]
Definition: ESRI Well Known Text
PROJECTION["Lambert_Conformal_Conic"], PARAMETER["False_Easting",2743195.59223332], PARAMETER["False_Northing",914398.530744441], PARAMETER["Central_Meridian",100.0], PARAMETER["Standard_Parallel_1",19.0], PARAMETER["Scale_Factor",0.99878641], PARAMETER["Latitude_Of_Origin",19.0]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Conversion", "name": "India zone IIIb", "method": { "name": "Lambert Conic Conformal (1SP)", "id": { "authority": "EPSG", "code": 9801 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 19, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": 100, "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": 3000000, "unit": { "type": "LinearUnit", "name": "Indian yard", "conversion_factor": 0.914398530744441 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 1000000, "unit": { "type": "LinearUnit", "name": "Indian yard", "conversion_factor": 0.914398530744441 }, "id": { "authority": "EPSG", "code": 8807 } } ], "id": { "authority": "EPSG", "code": 18115 } }
Definition: GeoServer
18115=PROJECTION["Lambert_Conformal_Conic_1SP"],PARAMETER["latitude_of_origin",19],PARAMETER["central_meridian",100],PARAMETER["scale_factor",0.99878641],PARAMETER["false_easting",2743195.59223332],PARAMETER["false_northing",914398.530744441]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=lcc +lat_1=19 +lat_0=19 +lon_0=100 +k_0=0.99878641 +x_0=2743195.59223332 +y_0=914398.530744441"> <Layer srs="+proj=lcc +lat_1=19 +lat_0=19 +lon_0=100 +k_0=0.99878641 +x_0=2743195.59223332 +y_0=914398.530744441"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 18115, 'EPSG', 18115, '+proj=lcc +lat_1=19 +lat_0=19 +lon_0=100 +k_0=0.99878641 +x_0=2743195.59223332 +y_0=914398.530744441', 'PROJECTION["Lambert_Conformal_Conic_1SP"],PARAMETER["latitude_of_origin",19],PARAMETER["central_meridian",100],PARAMETER["scale_factor",0.99878641],PARAMETER["false_easting",2743195.59223332],PARAMETER["false_northing",914398.530744441]');