EPSG
GDM2000 Technical Manual; Department of Survey and Mapping Malaysia. www.jupem.gov.my
2006-03-16
Engineering survey, topographic mapping.
Origin is station TG26 at Gunung Larut Hiijau, Taiping. Offset from old grid origin is -1.769m east, 0.994m north.
Malaysia - West Malaysia - Perak.
(0,)
Definition: OGC Well Known Text 2 (2019)
CONVERSION["Perak Grid", METHOD["Cassini-Soldner", ID["EPSG",9806]], PARAMETER["Latitude of natural origin",4.85906302222222, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",100.815410586111, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["False easting",-1.769, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",133454.779, LENGTHUNIT["metre",1], ID["EPSG",8807]], ID["EPSG",19886]]
Definition: ESRI Well Known Text
PROJECTION["Cassini"], PARAMETER["False_Easting",-1.769], PARAMETER["False_Northing",133454.779], PARAMETER["Central_Meridian",100.815410586111], PARAMETER["Scale_Factor",1.0], PARAMETER["Latitude_Of_Origin",4.85906302222222]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Conversion", "name": "Perak Grid", "method": { "name": "Cassini-Soldner", "id": { "authority": "EPSG", "code": 9806 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 4.85906302222222, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": 100.815410586111, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "False easting", "value": -1.769, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 133454.779, "unit": "metre", "id": { "authority": "EPSG", "code": 8807 } } ], "id": { "authority": "EPSG", "code": 19886 } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=cass +lat_0=4.85906302222222 +lon_0=100.815410586111 +x_0=-1.769 +y_0=133454.779"> <Layer srs="+proj=cass +lat_0=4.85906302222222 +lon_0=100.815410586111 +x_0=-1.769 +y_0=133454.779"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 19886, 'EPSG', 19886, '+proj=cass +lat_0=4.85906302222222 +lon_0=100.815410586111 +x_0=-1.769 +y_0=133454.779', 'PROJECTION["Cassini_Soldner"],PARAMETER["latitude_of_origin",4.85906302222222],PARAMETER["central_meridian",100.815410586111],PARAMETER["false_easting",-1.769],PARAMETER["false_northing",133454.779]');