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Method: Geocentric translations (geog2D domain)
Remarks: Parameter values are from Cape to Hartebeesthoek94 (1) (code 1504) assuming that Hartebeesthoek94 and WGS 84 are equivalent within the accuracy of the transformation. Residuals should not exceed 15 metres.
Information source: Private Communication, Directorate of Surveys and Land Information, Cape Town.
Revision date: 2021-09-23
Unit: metre
Geodetic CRS: Cape
Datum: Cape
Ellipsoid: Clarke 1880 (Arc)
Prime meridian: Greenwich
Data source: EPSG
Information source: Directorate of Surveys and Mapping, Mowbray, South Africa.
Revision date: 2007-02-12
Scope: Cadastre, engineering survey, topographic mapping (large and medium scale).
Area of use: South Africa - onshore between 24°E and 26°E.
Coordinate system: Cartesian 2D CS. Axes: westing, southing (Y,X). Orientations: west, south. UoM: m.
&stroke=red&width=2&path=-34.88,16.45|-22.13,16.45|-22.13,32.95|-34.88,32.95|-34.88,16.45)
Center coordinates
29326.44 3154148.68
Projected bounds:
-822131.42 2447928.11
884409.75 3894529.44
WGS84 bounds:
16.45 -34.88
32.95 -22.13
Definition: OGC Well Known Text
PROJCS["Cape / Lo25", GEOGCS["Cape", DATUM["Cape", SPHEROID["Clarke 1880 (Arc)",6378249.145,293.4663077], TOWGS84[-134.73,-110.92,-292.66,0,0,0,0]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4222"]], PROJECTION["Transverse_Mercator_South_Orientated"], PARAMETER["latitude_of_origin",0], PARAMETER["central_meridian",25], PARAMETER["scale_factor",1], PARAMETER["false_easting",0], PARAMETER["false_northing",0], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AUTHORITY["EPSG","22285"]]
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ PROJCRS["Cape / Lo25", BASEGEOGCRS["Cape", DATUM["Cape", ELLIPSOID["Clarke 1880 (Arc)",6378249.145,293.4663077, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4222]], CONVERSION["South African Survey Grid zone 25", METHOD["Transverse Mercator (South Orientated)", ID["EPSG",9808]], PARAMETER["Latitude of natural origin",0, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",25, 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["metre",1], ID["EPSG",8806]], PARAMETER["False northing",0, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["westing (Y)",west, ORDER[1], LENGTHUNIT["metre",1]], AXIS["southing (X)",south, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Cadastre, engineering survey, topographic mapping (large and medium scale)."], AREA["South Africa - onshore between 24°E and 26°E."], BBOX[-34.26,24,-24.71,26.01]], ID["EPSG",22285]]], TARGETCRS[ GEOGCRS["WGS 84", ENSEMBLE["World Geodetic System 1984 ensemble", MEMBER["World Geodetic System 1984 (Transit)"], MEMBER["World Geodetic System 1984 (G730)"], MEMBER["World Geodetic System 1984 (G873)"], MEMBER["World Geodetic System 1984 (G1150)"], MEMBER["World Geodetic System 1984 (G1674)"], MEMBER["World Geodetic System 1984 (G1762)"], MEMBER["World Geodetic System 1984 (G2139)"], ELLIPSOID["WGS 84",6378137,298.257223563, LENGTHUNIT["metre",1]], ENSEMBLEACCURACY[2.0]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], CS[ellipsoidal,2], AXIS["geodetic latitude (Lat)",north, ORDER[1], ANGLEUNIT["degree",0.0174532925199433]], AXIS["geodetic longitude (Lon)",east, ORDER[2], ANGLEUNIT["degree",0.0174532925199433]], USAGE[ SCOPE["Horizontal component of 3D system."], AREA["World."], BBOX[-90,-180,90,180]], ID["EPSG",4326]]], ABRIDGEDTRANSFORMATION["Transformation from unknown to WGS84", METHOD["Position Vector transformation (geog2D domain)", ID["EPSG",9606]], PARAMETER["X-axis translation",-134.73, ID["EPSG",8605]], PARAMETER["Y-axis translation",-110.92, ID["EPSG",8606]], PARAMETER["Z-axis translation",-292.66, ID["EPSG",8607]], PARAMETER["X-axis rotation",0, ID["EPSG",8608]], PARAMETER["Y-axis rotation",0, ID["EPSG",8609]], PARAMETER["Z-axis rotation",0, ID["EPSG",8610]], PARAMETER["Scale difference",1, ID["EPSG",8611]]]]
Definition: ESRI Well Known Text
PROJCS["Cape_Lo25", GEOGCS["GCS_Cape", DATUM["D_Cape", SPHEROID["Clarke_1880_Arc",6378249.145,293.4663077]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Transverse_Mercator_South_Orientated"], PARAMETER["latitude_of_origin",0.0], PARAMETER["central_meridian",25.0], PARAMETER["scale_factor",1.0], PARAMETER["false_easting",0.0], PARAMETER["false_northing",0.0], UNIT["Meter",1.0]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "ProjectedCRS", "name": "Cape / Lo25", "base_crs": { "name": "Cape", "datum": { "type": "GeodeticReferenceFrame", "name": "Cape", "ellipsoid": { "name": "Clarke 1880 (Arc)", "semi_major_axis": 6378249.145, "inverse_flattening": 293.4663077 } }, "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": 4222 } }, "conversion": { "name": "South African Survey Grid zone 25", "method": { "name": "Transverse Mercator (South Orientated)", "id": { "authority": "EPSG", "code": 9808 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 0, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": 25, "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": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": "metre", "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Westing", "abbreviation": "Y", "direction": "west", "unit": "metre" }, { "name": "Southing", "abbreviation": "X", "direction": "south", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 22285 } }, "target_crs": { "type": "GeographicCRS", "name": "WGS 84", "datum_ensemble": { "name": "World Geodetic System 1984 ensemble", "members": [ { "name": "World Geodetic System 1984 (Transit)", "id": { "authority": "EPSG", "code": 1166 } }, { "name": "World Geodetic System 1984 (G730)", "id": { "authority": "EPSG", "code": 1152 } }, { "name": "World Geodetic System 1984 (G873)", "id": { "authority": "EPSG", "code": 1153 } }, { "name": "World Geodetic System 1984 (G1150)", "id": { "authority": "EPSG", "code": 1154 } }, { "name": "World Geodetic System 1984 (G1674)", "id": { "authority": "EPSG", "code": 1155 } }, { "name": "World Geodetic System 1984 (G1762)", "id": { "authority": "EPSG", "code": 1156 } }, { "name": "World Geodetic System 1984 (G2139)", "id": { "authority": "EPSG", "code": 1309 } } ], "ellipsoid": { "name": "WGS 84", "semi_major_axis": 6378137, "inverse_flattening": 298.257223563 }, "accuracy": "2.0", "id": { "authority": "EPSG", "code": 6326 } }, "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": 4326 } }, "transformation": { "name": "Transformation from unknown to WGS84", "method": { "name": "Position Vector transformation (geog2D domain)", "id": { "authority": "EPSG", "code": 9606 } }, "parameters": [ { "name": "X-axis translation", "value": -134.73, "unit": "metre", "id": { "authority": "EPSG", "code": 8605 } }, { "name": "Y-axis translation", "value": -110.92, "unit": "metre", "id": { "authority": "EPSG", "code": 8606 } }, { "name": "Z-axis translation", "value": -292.66, "unit": "metre", "id": { "authority": "EPSG", "code": 8607 } }, { "name": "X-axis rotation", "value": 0, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8608 } }, { "name": "Y-axis rotation", "value": 0, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8609 } }, { "name": "Z-axis rotation", "value": 0, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8610 } }, { "name": "Scale difference", "value": 0, "unit": { "type": "ScaleUnit", "name": "parts per million", "conversion_factor": 1e-06 }, "id": { "authority": "EPSG", "code": 8611 } } ] } }
Definition: GeoServer
22285=PROJCS["Cape / Lo25",GEOGCS["Cape",DATUM["Cape",SPHEROID["Clarke 1880 (Arc)",6378249.145,293.4663077],TOWGS84[-134.73,-110.92,-292.66,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4222"]],PROJECTION["Transverse_Mercator_South_Orientated"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",25],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","22285"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=tmerc +axis=wsu +lat_0=0 +lon_0=25 +k=1 +x_0=0 +y_0=0 +a=6378249.145 +rf=293.4663077 +towgs84=-134.73,-110.92,-292.66,0,0,0,0 +units=m +no_defs +type=crs"> <Layer srs="+proj=tmerc +axis=wsu +lat_0=0 +lon_0=25 +k=1 +x_0=0 +y_0=0 +a=6378249.145 +rf=293.4663077 +towgs84=-134.73,-110.92,-292.66,0,0,0,0 +units=m +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 22285, 'EPSG', 22285, '+proj=tmerc +axis=wsu +lat_0=0 +lon_0=25 +k=1 +x_0=0 +y_0=0 +a=6378249.145 +rf=293.4663077 +towgs84=-134.73,-110.92,-292.66,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["Cape / Lo25",GEOGCS["Cape",DATUM["Cape",SPHEROID["Clarke 1880 (Arc)",6378249.145,293.4663077],TOWGS84[-134.73,-110.92,-292.66,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4222"]],PROJECTION["Transverse_Mercator_South_Orientated"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",25],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","22285"]]');
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