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Method: Coordinate Frame rotation (geog2D domain)
Remarks:
Information source: Survey Department, Brunei.
Revision date: 2010-09-22
Unit: metre
Geodetic CRS: Timbalai 1948
Datum: Timbalai 1948
Ellipsoid: Everest 1830 (1967 Definition)
Prime meridian: Greenwich
Data source: EPSG
Information source: Shell
Revision date: 2020-12-14
Scope: Engineering survey, topographic mapping.
Remarks: Used by the Land and Survey Department, Sarawak, Malaysia. Modified from Timbalai 1948 / RSO Borneo (m) CRS code 29873 by adding 2 million to the false easting and 5 million to the false northing.
Area of use: Malaysia - East Malaysia - Sarawak onshore.
Coordinate system: Cartesian 2D CS. Axes: easting, northing (E,N). Orientations: east, north. UoM: m.
&stroke=red&width=2&path=4.01,112.37|6.31,112.37|6.31,115.37|4.01,115.37|4.01,112.37)
Center coordinates
2464380.26 5570926.82
Projected bounds:
2297989.61 5443547.25
2631166.06 5698549.87
WGS84 bounds:
112.37 4.01
115.37 6.31
Definition: OGC Well Known Text
PROJCS["Timbalai 1948 / RSO Sarawak LSD (m)", GEOGCS["Timbalai 1948", DATUM["Timbalai_1948", SPHEROID["Everest 1830 (1967 Definition)",6377298.556,300.8017], TOWGS84[-689.5937,623.84046,-65.93566,0.02331,-1.17094,0.80054,5.88536]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4298"]], PROJECTION["Hotine_Oblique_Mercator"], PARAMETER["latitude_of_center",4], PARAMETER["longitude_of_center",115], PARAMETER["azimuth",53.3158204722222], PARAMETER["rectified_grid_angle",53.1301023611111], PARAMETER["scale_factor",0.99984], PARAMETER["false_easting",2000000], PARAMETER["false_northing",5000000], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["EPSG","29874"]]
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ PROJCRS["Timbalai 1948 / RSO Sarawak LSD (m)", BASEGEOGCRS["Timbalai 1948", DATUM["Timbalai 1948", ELLIPSOID["Everest 1830 (1967 Definition)",6377298.556,300.8017, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4298]], CONVERSION["Rectified Skew Orthomorphic Sarawak LSD (metre)", METHOD["Hotine Oblique Mercator (variant A)", ID["EPSG",9812]], PARAMETER["Latitude of projection centre",4, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8811]], PARAMETER["Longitude of projection centre",115, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8812]], PARAMETER["Azimuth of initial line",53.3158204722222, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8813]], PARAMETER["Angle from Rectified to Skew Grid",53.1301023611111, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8814]], PARAMETER["Scale factor on initial line",0.99984, SCALEUNIT["unity",1], ID["EPSG",8815]], PARAMETER["False easting",2000000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",5000000, 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["Malaysia - East Malaysia - Sarawak onshore."], BBOX[0.85,109.54,5.03,115.69]], ID["EPSG",29874]]], 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",-689.5937, ID["EPSG",8605]], PARAMETER["Y-axis translation",623.84046, ID["EPSG",8606]], PARAMETER["Z-axis translation",-65.93566, ID["EPSG",8607]], PARAMETER["X-axis rotation",0.02331, ID["EPSG",8608]], PARAMETER["Y-axis rotation",-1.17094, ID["EPSG",8609]], PARAMETER["Z-axis rotation",0.80054, ID["EPSG",8610]], PARAMETER["Scale difference",1.00000588536, ID["EPSG",8611]]]]
Definition: ESRI Well Known Text
PROJCS["Timbalai_1948_RSO_Sarawak_LSD_(m)", GEOGCS["GCS_Timbalai_1948", DATUM["D_Timbalai_1948", SPHEROID["Everest_Definition_1967",6377298.556,300.8017]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Rectified_Skew_Orthomorphic_Natural_Origin"], PARAMETER["False_Easting",2000000.0], PARAMETER["False_Northing",5000000.0], PARAMETER["Scale_Factor",0.99984], PARAMETER["Azimuth",53.3158204722222], PARAMETER["Longitude_Of_Center",115.0], PARAMETER["Latitude_Of_Center",4.0], PARAMETER["XY_Plane_Rotation",53.1301023611111], UNIT["Meter",1.0]]
Definition: JavaScript (Proj4js)
proj4.defs("EPSG:29874","+proj=omerc +no_uoff +lat_0=4 +lonc=115 +alpha=53.3158204722222 +gamma=53.1301023611111 +k=0.99984 +x_0=2000000 +y_0=5000000 +ellps=evrstSS +towgs84=-689.5937,623.84046,-65.93566,0.02331,-1.17094,0.80054,5.88536 +units=m +no_defs +type=crs");
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "ProjectedCRS", "name": "Timbalai 1948 / RSO Sarawak LSD (m)", "base_crs": { "name": "Timbalai 1948", "datum": { "type": "GeodeticReferenceFrame", "name": "Timbalai 1948", "ellipsoid": { "name": "Everest 1830 (1967 Definition)", "semi_major_axis": 6377298.556, "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": 4298 } }, "conversion": { "name": "Rectified Skew Orthomorphic Sarawak LSD (metre)", "method": { "name": "Hotine Oblique Mercator (variant A)", "id": { "authority": "EPSG", "code": 9812 } }, "parameters": [ { "name": "Latitude of projection centre", "value": 4, "unit": "degree", "id": { "authority": "EPSG", "code": 8811 } }, { "name": "Longitude of projection centre", "value": 115, "unit": "degree", "id": { "authority": "EPSG", "code": 8812 } }, { "name": "Azimuth of initial line", "value": 53.3158204722222, "unit": "degree", "id": { "authority": "EPSG", "code": 8813 } }, { "name": "Angle from Rectified to Skew Grid", "value": 53.1301023611111, "unit": "degree", "id": { "authority": "EPSG", "code": 8814 } }, { "name": "Scale factor on initial line", "value": 0.99984, "unit": "unity", "id": { "authority": "EPSG", "code": 8815 } }, { "name": "False easting", "value": 2000000, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 5000000, "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" } ] }, "id": { "authority": "EPSG", "code": 29874 } }, "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": -689.5937, "unit": "metre", "id": { "authority": "EPSG", "code": 8605 } }, { "name": "Y-axis translation", "value": 623.84046, "unit": "metre", "id": { "authority": "EPSG", "code": 8606 } }, { "name": "Z-axis translation", "value": -65.93566, "unit": "metre", "id": { "authority": "EPSG", "code": 8607 } }, { "name": "X-axis rotation", "value": 0.02331, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8608 } }, { "name": "Y-axis rotation", "value": -1.17094, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8609 } }, { "name": "Z-axis rotation", "value": 0.80054, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8610 } }, { "name": "Scale difference", "value": 5.88536, "unit": { "type": "ScaleUnit", "name": "parts per million", "conversion_factor": 1e-06 }, "id": { "authority": "EPSG", "code": 8611 } } ] } }
Definition: GeoServer
29874=PROJCS["Timbalai 1948 / RSO Sarawak LSD (m)",GEOGCS["Timbalai 1948",DATUM["Timbalai_1948",SPHEROID["Everest 1830 (1967 Definition)",6377298.556,300.8017],TOWGS84[-689.5937,623.84046,-65.93566,0.02331,-1.17094,0.80054,5.88536]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4298"]],PROJECTION["Hotine_Oblique_Mercator"],PARAMETER["latitude_of_center",4],PARAMETER["longitude_of_center",115],PARAMETER["azimuth",53.3158204722222],PARAMETER["rectified_grid_angle",53.1301023611111],PARAMETER["scale_factor",0.99984],PARAMETER["false_easting",2000000],PARAMETER["false_northing",5000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","29874"]]
Definition: MapServer - MAPfile
PROJECTION "proj=omerc" "no_uoff" "lat_0=4" "lonc=115" "alpha=53.3158204722222" "gamma=53.1301023611111" "k=0.99984" "x_0=2000000" "y_0=5000000" "ellps=evrstSS" "towgs84=-689.5937,623.84046,-65.93566,0.02331,-1.17094,0.80054,5.88536" "units=m" "no_defs" "type=crs" END
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=omerc +no_uoff +lat_0=4 +lonc=115 +alpha=53.3158204722222 +gamma=53.1301023611111 +k=0.99984 +x_0=2000000 +y_0=5000000 +ellps=evrstSS +towgs84=-689.5937,623.84046,-65.93566,0.02331,-1.17094,0.80054,5.88536 +units=m +no_defs +type=crs"> <Layer srs="+proj=omerc +no_uoff +lat_0=4 +lonc=115 +alpha=53.3158204722222 +gamma=53.1301023611111 +k=0.99984 +x_0=2000000 +y_0=5000000 +ellps=evrstSS +towgs84=-689.5937,623.84046,-65.93566,0.02331,-1.17094,0.80054,5.88536 +units=m +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 29874, 'EPSG', 29874, '+proj=omerc +no_uoff +lat_0=4 +lonc=115 +alpha=53.3158204722222 +gamma=53.1301023611111 +k=0.99984 +x_0=2000000 +y_0=5000000 +ellps=evrstSS +towgs84=-689.5937,623.84046,-65.93566,0.02331,-1.17094,0.80054,5.88536 +units=m +no_defs +type=crs', 'PROJCS["Timbalai 1948 / RSO Sarawak LSD (m)",GEOGCS["Timbalai 1948",DATUM["Timbalai_1948",SPHEROID["Everest 1830 (1967 Definition)",6377298.556,300.8017],TOWGS84[-689.5937,623.84046,-65.93566,0.02331,-1.17094,0.80054,5.88536]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4298"]],PROJECTION["Hotine_Oblique_Mercator"],PARAMETER["latitude_of_center",4],PARAMETER["longitude_of_center",115],PARAMETER["azimuth",53.3158204722222],PARAMETER["rectified_grid_angle",53.1301023611111],PARAMETER["scale_factor",0.99984],PARAMETER["false_easting",2000000],PARAMETER["false_northing",5000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","29874"]]');
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