Unit: metre
Geodetic CRS: Macao height
Datum: Macao Height Datum
Data source: EPSG
Information source: Directorate of Cartographic and Cadastral Services (DSCC).
Revision date: 2018-02-16
Scope: Geodesy, engineering survey, topographic mapping.
Area of use: China - Macao - onshore and offshore.
Coordinate system: Vertical CS. Axis: height (H). Orientation: up. UoM: m.
Center coordinates
22.14 113.6
Projected bounds:
22.06 113.52
22.23 113.68
WGS84 bounds:
113.52 22.06
113.68 22.23
Definition: OGC Well Known Text 2 (2019)
VERTCRS["Macao height", VDATUM["Macao Height Datum"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], USAGE[ SCOPE["Geodesy, engineering survey, topographic mapping."], AREA["China - Macao - onshore and offshore."], BBOX[22.06,113.52,22.23,113.68]], ID["EPSG",8434]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "VerticalCRS", "name": "Macao height", "datum": { "type": "VerticalReferenceFrame", "name": "Macao Height Datum" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "scope": "Geodesy, engineering survey, topographic mapping.", "area": "China - Macao - onshore and offshore.", "bbox": { "south_latitude": 22.06, "west_longitude": 113.52, "north_latitude": 22.23, "east_longitude": 113.68 }, "id": { "authority": "EPSG", "code": 8434 } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+vunits=m +no_defs +type=crs"> <Layer srs="+vunits=m +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 8434, 'EPSG', 8434, '+vunits=m +no_defs +type=crs', 'VERT_CS["Macao height",VERT_DATUM["Macao Height Datum",2005,AUTHORITY["EPSG","1210"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","8434"]]');