49.92 -6.32
49.86 -6.41
49.99 -6.23
-6.41 49.86
-6.23 49.99
Definition: OGC Well Known Text 2 (2019)
VERTCRS["St. Marys height", VDATUM["St. Marys"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], USAGE[ SCOPE["Geodesy, engineering survey."], AREA["United Kingdom (UK) - Great Britain - England - Isles of Scilly onshore."], BBOX[49.86,-6.41,49.99,-6.23]], ID["EPSG",5749]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "VerticalCRS", "name": "St. Marys height", "datum": { "type": "VerticalReferenceFrame", "name": "St. Marys" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "scope": "Geodesy, engineering survey.", "area": "United Kingdom (UK) - Great Britain - England - Isles of Scilly onshore.", "bbox": { "south_latitude": 49.86, "west_longitude": -6.41, "north_latitude": 49.99, "east_longitude": -6.23 }, "id": { "authority": "EPSG", "code": 5749 } }
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 ( 5749, 'EPSG', 5749, '+vunits=m +no_defs +type=crs', 'VERT_CS["St. Marys height",VERT_DATUM["St. Marys",2005,AUTHORITY["EPSG","5147"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5749"]]');