EPSG:6917

SVY21 + SHD height

Attributes

Geodetic CRS: SVY21 + SHD height

Data source: EPSG

Information source: Singapore Land Authority, Lands Department.

Revision date: 2014-07-16

Scope: Engineering survey, GIS, topographic mapping.

Area of use: Singapore - onshore and offshore.

Center coordinates
103.83 1.3

Projected bounds:
103.59 1.13
104.07 1.47

WGS84 bounds:
103.59 1.13
104.07 1.47

Singapore - onshore and offshore.
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Definition: Well Known Text (WKT)

COMPD_CS["SVY21 + SHD height",
    GEOGCS["SVY21",
        DATUM["SVY21",
            SPHEROID["WGS 84",6378137,298.257223563]],
        PRIMEM["Greenwich",0],
        UNIT["degree",0.0174532925199433]],
    VERT_CS["SHD height",
        VERT_DATUM["Singapore Height Datum",2005],
        UNIT["metre",1],
        AXIS["Gravity-related height",UP]],
    AUTHORITY["EPSG","6917"]]

Definition: ESRI WKT

GEOGCS["GCS_SVY21",DATUM["D_SVY21",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],VERTCS["SHD_height",VDATUM["Singapore_Height_Datum"],PARAMETER["Vertical_Shift",0.0],PARAMETER["Direction",1.0],UNIT["Meter",1.0]]

Definition: PROJ.4

+proj=longlat +ellps=WGS84 +vunits=m +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:6917","+proj=longlat +ellps=WGS84 +vunits=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.4/projjson.schema.json",
    "type": "CompoundCRS",
    "name": "SVY21 + SHD height",
    "components": [
        {
            "type": "GeographicCRS",
            "name": "SVY21",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "SVY21",
                "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"
                    }
                ]
            }
        },
        {
            "type": "VerticalCRS",
            "name": "SHD height",
            "datum": {
                "type": "VerticalReferenceFrame",
                "name": "Singapore Height Datum"
            },
            "coordinate_system": {
                "subtype": "vertical",
                "axis": [
                    {
                        "name": "Gravity-related height",
                        "abbreviation": "H",
                        "direction": "up",
                        "unit": "metre"
                    }
                ]
            }
        }
    ],
    "scope": "Engineering survey, GIS, topographic mapping.",
    "area": "Singapore - onshore and offshore.",
    "bbox": {
        "south_latitude": 1.13,
        "west_longitude": 103.59,
        "north_latitude": 1.47,
        "east_longitude": 104.07
    },
    "id": {
        "authority": "EPSG",
        "code": 6917
    }
}

Definition: GeoServer

6917=COMPD_CS["SVY21 + SHD height",GEOGCS["SVY21",DATUM["SVY21",SPHEROID["WGS 84",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433]],VERT_CS["SHD height",VERT_DATUM["Singapore Height Datum",2005],UNIT["metre",1],AXIS["Gravity-related height",UP]],AUTHORITY["EPSG","6917"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"ellps=WGS84"
	"vunits=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=WGS84 +vunits=m +no_defs +type=crs">
	<Layer srs="+proj=longlat +ellps=WGS84 +vunits=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 6917, 'EPSG', 6917, '+proj=longlat +ellps=WGS84 +vunits=m +no_defs +type=crs', 'COMPD_CS["SVY21 + SHD height",GEOGCS["SVY21",DATUM["SVY21",SPHEROID["WGS 84",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433]],VERT_CS["SHD height",VERT_DATUM["Singapore Height Datum",2005],UNIT["metre",1],AXIS["Gravity-related height",UP]],AUTHORITY["EPSG","6917"]]');

Definition: OGC WKT

COMPD_CS["SVY21 + SHD height",GEOGCS["SVY21",DATUM["SVY21",SPHEROID["WGS 84",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433]],VERT_CS["SHD height",VERT_DATUM["Singapore Height Datum",2005],UNIT["metre",1],AXIS["Gravity-related height",UP]],AUTHORITY["EPSG","6917"]]

Definition: OGC WKT 2 (2019)

COMPOUNDCRS["SVY21 + SHD height",GEOGCRS["SVY21",DATUM["SVY21",ELLIPSOID["WGS 84",6378137,298.257223563,LENGTHUNIT["metre",1]]],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]]],VERTCRS["SHD height",VDATUM["Singapore Height Datum"],CS[vertical,1],AXIS["gravity-related height (H)",up,LENGTHUNIT["metre",1]]],USAGE[SCOPE["Engineering survey, GIS, topographic mapping."],AREA["Singapore - onshore and offshore."],BBOX[1.13,103.59,1.47,104.07]],ID["EPSG",6917]]