metre
Cadastre, engineering survey, topographic mapping (large scale).
None
Vietnam - Bac Ninh, Ha Giang, Ha Tinh, Hai Duong, Hung Yen, Nam Dinh, Soc Trang, Tay Ninh, Thai Binh, Tra Vinh and Vinh Long provinces.
Data Source: EPSG v11.016 2024-08-31
Datum: Vietnam 2000
Coordinate System: cartesian
Projection: Vietnam TM-3 105-30
Geodetic CRS: VN-2000
PROJCRS["VN-2000 / TM-3 105-30",
BASEGEOGCRS["VN-2000",
DATUM["Vietnam 2000",
ELLIPSOID["WGS 84",6378137,298.257223563,
LENGTHUNIT["metre",1]]],
PRIMEM["Greenwich",0,
ANGLEUNIT["degree",0.0174532925199433]],
ID["EPSG",4756]],
CONVERSION["Vietnam TM-3 105-30",
METHOD["Transverse Mercator",
ID["EPSG",9807]],
PARAMETER["Latitude of natural origin",0,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8801]],
PARAMETER["Longitude of natural origin",105.5,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8802]],
PARAMETER["Scale factor at natural origin",0.9999,
SCALEUNIT["unity",1],
ID["EPSG",8805]],
PARAMETER["False easting",500000,
LENGTHUNIT["metre",1],
ID["EPSG",8806]],
PARAMETER["False northing",0,
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["Cadastre, engineering survey, topographic mapping (large scale)."],
AREA["Vietnam - Bac Ninh, Ha Giang, Ha Tinh, Hai Duong, Hung Yen, Nam Dinh, Soc Trang, Tay Ninh, Thai Binh, Tra Vinh and Vinh Long provinces."],
BBOX[9.19,104.33,23.4,106.69]],
ID["EPSG",9209]]
{
"$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
"type": "ProjectedCRS",
"name": "VN-2000 / TM-3 105-30",
"base_crs": {
"name": "VN-2000",
"datum": {
"type": "GeodeticReferenceFrame",
"name": "Vietnam 2000",
"ellipsoid": {
"name": "WGS 84",
"semi_major_axis": 6378137,
"inverse_flattening": 298.257223563
}
},
"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": 4756
}
},
"conversion": {
"name": "Vietnam TM-3 105-30",
"method": {
"name": "Transverse Mercator",
"id": {
"authority": "EPSG",
"code": 9807
}
},
"parameters": [
{
"name": "Latitude of natural origin",
"value": 0,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8801
}
},
{
"name": "Longitude of natural origin",
"value": 105.5,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8802
}
},
{
"name": "Scale factor at natural origin",
"value": 0.9999,
"unit": "unity",
"id": {
"authority": "EPSG",
"code": 8805
}
},
{
"name": "False easting",
"value": 500000,
"unit": "metre",
"id": {
"authority": "EPSG",
"code": 8806
}
},
{
"name": "False northing",
"value": 0,
"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": "Cadastre, engineering survey, topographic mapping (large scale).",
"area": "Vietnam - Bac Ninh, Ha Giang, Ha Tinh, Hai Duong, Hung Yen, Nam Dinh, Soc Trang, Tay Ninh, Thai Binh, Tra Vinh and Vinh Long provinces.",
"bbox": {
"south_latitude": 9.19,
"west_longitude": 104.33,
"north_latitude": 23.4,
"east_longitude": 106.69
},
"id": {
"authority": "EPSG",
"code": 9209
}
}
{'crs_wkt': 'PROJCRS["VN-2000 / TM-3 '
'105-30",BASEGEOGCRS["VN-2000",DATUM["Vietnam 2000",ELLIPSOID["WGS '
'84",6378137,298.257223563,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4756]],CONVERSION["Vietnam '
'TM-3 105-30",METHOD["Transverse '
'Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural '
'origin",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude '
'of natural '
'origin",105.5,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale '
'factor at natural '
'origin",0.9999,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False '
'easting",500000,LENGTHUNIT["metre",1],ID["EPSG",8806]],PARAMETER["False '
'northing",0,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["Cadastre, '
'engineering survey, topographic mapping (large '
'scale)."],AREA["Vietnam - Bac Ninh, Ha Giang, Ha Tinh, Hai Duong, '
'Hung Yen, Nam Dinh, Soc Trang, Tay Ninh, Thai Binh, Tra Vinh and '
'Vinh Long '
'provinces."],BBOX[9.19,104.33,23.4,106.69]],ID["EPSG",9209]]',
'false_easting': 500000.0,
'false_northing': 0.0,
'geographic_crs_name': 'VN-2000',
'grid_mapping_name': 'transverse_mercator',
'horizontal_datum_name': 'Vietnam 2000',
'inverse_flattening': 298.257223563,
'latitude_of_projection_origin': 0.0,
'longitude_of_central_meridian': 105.5,
'longitude_of_prime_meridian': 0.0,
'prime_meridian_name': 'Greenwich',
'projected_crs_name': 'VN-2000 / TM-3 105-30',
'reference_ellipsoid_name': 'WGS 84',
'scale_factor_at_central_meridian': 0.9999,
'semi_major_axis': 6378137.0,
'semi_minor_axis': 6356752.314245179}