metre
EPSG
Istituto Geografico Militare (IGM), www.igmi.org
2021-05-13
Geodesy, engineering survey, topographic mapping.
Definition: OGC Well Known Text 2 (2019)
VERTCRS["Cagliari 1956 height", VDATUM["Cagliari 1956"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], USAGE[ SCOPE["Geodesy, engineering survey, topographic mapping."], AREA["Italy - Sardinia onshore."], BBOX[38.82,8.08,41.31,9.89]], ID["EPSG",9722]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "VerticalCRS", "name": "Cagliari 1956 height", "datum": { "type": "VerticalReferenceFrame", "name": "Cagliari 1956" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "scope": "Geodesy, engineering survey, topographic mapping.", "area": "Italy - Sardinia onshore.", "bbox": { "south_latitude": 38.82, "west_longitude": 8.08, "north_latitude": 41.31, "east_longitude": 9.89 }, "id": { "authority": "EPSG", "code": 9722 } }
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 ( 9722, 'EPSG', 9722, '+vunits=m +no_defs +type=crs', 'VERT_CS["Cagliari 1956 height",VERT_DATUM["Cagliari 1956",2005,AUTHORITY["EPSG","1307"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","9722"]]');