Municipal spatial referencing.
Defined from GHA height (EPSG:5778) using a vertical offset (Wiener Null is 156.68m above GHA height).
Definition: OGC Well Known Text 2 (2019)
VERTCRS["Vienna height", VDATUM["Wiener Null"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], USAGE[ SCOPE["Municipal spatial referencing."], AREA["Austria - Vienna city state."], BBOX[48.12,16.18,48.34,16.59]], ID["EPSG",8881]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "VerticalCRS", "name": "Vienna height", "datum": { "type": "VerticalReferenceFrame", "name": "Wiener Null" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "scope": "Municipal spatial referencing.", "area": "Austria - Vienna city state.", "bbox": { "south_latitude": 48.12, "west_longitude": 16.18, "north_latitude": 48.34, "east_longitude": 16.59 }, "id": { "authority": "EPSG", "code": 8881 } }
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 ( 8881, 'EPSG', 8881, '+vunits=m +no_defs +type=crs', 'VERT_CS["Vienna height",VERT_DATUM["Wiener Null",2005,AUTHORITY["EPSG","1267"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","8881"]]');