metre
Engineering survey, topographic mapping.
None
Sri Lanka - onshore.
Data Source: EPSG v11.022 2024-11-05
Datum: Sri Lanka Datum 1999
Coordinate System: cartesian
Projection: Sri Lanka Grid 1999
Geodetic CRS: SLD99
PROJCRS["SLD99 / Sri Lanka Grid 1999",
BASEGEOGCRS["SLD99",
DATUM["Sri Lanka Datum 1999",
ELLIPSOID["Everest 1830 (1937 Adjustment)",6377276.345,300.8017,
LENGTHUNIT["metre",1]]],
PRIMEM["Greenwich",0,
ANGLEUNIT["degree",0.0174532925199433]],
ID["EPSG",5233]],
CONVERSION["Sri Lanka Grid 1999",
METHOD["Transverse Mercator",
ID["EPSG",9807]],
PARAMETER["Latitude of natural origin",7.00047152777778,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8801]],
PARAMETER["Longitude of natural origin",80.7717130833333,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8802]],
PARAMETER["Scale factor at natural origin",0.9999238418,
SCALEUNIT["unity",1],
ID["EPSG",8805]],
PARAMETER["False easting",500000,
LENGTHUNIT["metre",1],
ID["EPSG",8806]],
PARAMETER["False northing",500000,
LENGTHUNIT["metre",1],
ID["EPSG",8807]]],
CS[Cartesian,2],
AXIS["(E)",east,
ORDER[1],
LENGTHUNIT["metre",1]],
AXIS["(N)",north,
ORDER[2],
LENGTHUNIT["metre",1]],
USAGE[
SCOPE["Engineering survey, topographic mapping."],
AREA["Sri Lanka - onshore."],
BBOX[5.86,79.64,9.88,81.95]],
ID["EPSG",5235]]
{
"$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
"type": "ProjectedCRS",
"name": "SLD99 / Sri Lanka Grid 1999",
"base_crs": {
"name": "SLD99",
"datum": {
"type": "GeodeticReferenceFrame",
"name": "Sri Lanka Datum 1999",
"ellipsoid": {
"name": "Everest 1830 (1937 Adjustment)",
"semi_major_axis": 6377276.345,
"inverse_flattening": 300.8017
}
},
"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": 5233
}
},
"conversion": {
"name": "Sri Lanka Grid 1999",
"method": {
"name": "Transverse Mercator",
"id": {
"authority": "EPSG",
"code": 9807
}
},
"parameters": [
{
"name": "Latitude of natural origin",
"value": 7.00047152777778,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8801
}
},
{
"name": "Longitude of natural origin",
"value": 80.7717130833333,
"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": 500000,
"unit": "metre",
"id": {
"authority": "EPSG",
"code": 8806
}
},
{
"name": "False northing",
"value": 500000,
"unit": "metre",
"id": {
"authority": "EPSG",
"code": 8807
}
}
]
},
"coordinate_system": {
"subtype": "Cartesian",
"axis": [
{
"name": "Easting",
"abbreviation": "E",
"direction": "east",
"unit": "metre"
},
{
"name": "Northing",
"abbreviation": "N",
"direction": "north",
"unit": "metre"
}
]
},
"scope": "Engineering survey, topographic mapping.",
"area": "Sri Lanka - onshore.",
"bbox": {
"south_latitude": 5.86,
"west_longitude": 79.64,
"north_latitude": 9.88,
"east_longitude": 81.95
},
"id": {
"authority": "EPSG",
"code": 5235
}
}
{'crs_wkt': 'PROJCRS["SLD99 / Sri Lanka Grid '
'1999",BASEGEOGCRS["SLD99",DATUM["Sri Lanka Datum '
'1999",ELLIPSOID["Everest 1830 (1937 '
'Adjustment)",6377276.345,300.8017,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",5233]],CONVERSION["Sri '
'Lanka Grid 1999",METHOD["Transverse '
'Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural '
'origin",7.00047152777778,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude '
'of natural '
'origin",80.7717130833333,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale '
'factor at natural '
'origin",0.9999238418,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False '
'easting",500000,LENGTHUNIT["metre",1],ID["EPSG",8806]],PARAMETER["False '
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'survey, topographic mapping."],AREA["Sri Lanka - '
'onshore."],BBOX[5.86,79.64,9.88,81.95]],ID["EPSG",5235]]',
'false_easting': 500000.0,
'false_northing': 500000.0,
'geographic_crs_name': 'SLD99',
'grid_mapping_name': 'transverse_mercator',
'horizontal_datum_name': 'Sri Lanka Datum 1999',
'inverse_flattening': 300.8017,
'latitude_of_projection_origin': 7.000471527777778,
'longitude_of_central_meridian': 80.77171308333334,
'longitude_of_prime_meridian': 0.0,
'prime_meridian_name': 'Greenwich',
'projected_crs_name': 'SLD99 / Sri Lanka Grid 1999',
'reference_ellipsoid_name': 'Everest 1830 (1937 Adjustment)',
'scale_factor_at_central_meridian': 0.9999238418,
'semi_major_axis': 6377276.345,
'semi_minor_axis': 6356075.41314024}