metre
EPSG
Abeyratne, Featherstone and Tantrigoda in Survey Review vol. 42 no. 317 (July 2010).
2010-08-07
Geodesy, engineering survey, topographic mapping.
Definition: OGC Well Known Text 2 (2019)
VERTCRS["SLVD height", VDATUM["Sri Lanka Vertical Datum"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], USAGE[ SCOPE["Geodesy, engineering survey, topographic mapping."], AREA["Sri Lanka - onshore."], BBOX[5.86,79.64,9.88,81.95]], ID["EPSG",5237]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "VerticalCRS", "name": "SLVD height", "datum": { "type": "VerticalReferenceFrame", "name": "Sri Lanka Vertical Datum" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "scope": "Geodesy, engineering survey, topographic mapping.", "area": "Sri Lanka - onshore.", "bbox": { "south_latitude": 5.86, "west_longitude": 79.64, "north_latitude": 9.88, "east_longitude": 81.95 }, "id": { "authority": "EPSG", "code": 5237 } }
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 ( 5237, 'EPSG', 5237, '+vunits=m +no_defs +type=crs', 'VERT_CS["SLVD height",VERT_DATUM["Sri Lanka Vertical Datum",2005,AUTHORITY["EPSG","1054"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5237"]]');