EPSG
Chief Directorate Surveys and Land Information; Mowbray; South Africa.
2007-02-12
Cadastre, engineering survey, topographic mapping (large and medium scale).
Transformation method sometimes described as "Gauss conform".
Transverse Mercator (South Orientated)
Namibia - onshore west of 12°E.
(0,)
Definition: OGC Well Known Text 2 (2019)
CONVERSION["South West African Survey Grid zone 11", METHOD["Transverse Mercator (South Orientated)", ID["EPSG",9808]], PARAMETER["Latitude of natural origin",-22, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",11, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",1, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",0, LENGTHUNIT["German legal metre",1.0000135965], ID["EPSG",8806]], PARAMETER["False northing",0, LENGTHUNIT["German legal metre",1.0000135965], ID["EPSG",8807]], ID["EPSG",17611]]
Definition: ESRI Well Known Text
PROJECTION["Transverse_Mercator_South_Orientated"], PARAMETER["latitude_of_origin",-22.0], PARAMETER["central_meridian",11.0], PARAMETER["scale_factor",1.0], PARAMETER["false_easting",0.0], PARAMETER["false_northing",0.0]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Conversion", "name": "South West African Survey Grid zone 11", "method": { "name": "Transverse Mercator (South Orientated)", "id": { "authority": "EPSG", "code": 9808 } }, "parameters": [ { "name": "Latitude of natural origin", "value": -22, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": 11, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 1, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 0, "unit": { "type": "LinearUnit", "name": "German legal metre", "conversion_factor": 1.0000135965 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "German legal metre", "conversion_factor": 1.0000135965 }, "id": { "authority": "EPSG", "code": 8807 } } ], "id": { "authority": "EPSG", "code": 17611 } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=tmerc +axis=wsu +lat_0=-22 +lon_0=11 +k=1 +x_0=0 +y_0=0"> <Layer srs="+proj=tmerc +axis=wsu +lat_0=-22 +lon_0=11 +k=1 +x_0=0 +y_0=0"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 17611, 'EPSG', 17611, '+proj=tmerc +axis=wsu +lat_0=-22 +lon_0=11 +k=1 +x_0=0 +y_0=0', 'PROJECTION["Transverse_Mercator_South_Orientated"],PARAMETER["latitude_of_origin",-22],PARAMETER["central_meridian",11],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0]');