| asProjJSON | {'$schema':'https://proj.org/schemas/v0.2/projjson.schema.json','type':'CompoundCRS','name':'SVY21 + SHD height','components':[{'type':'GeographicCRS' (...),'name':'SVY21','datum':{'type':'GeodeticReferenceFrame','name':'SVY21','ellipsoid':{'name':'WGS 84','semi_major_axis':6378137,'inverse_flattening':298.257223563}},'coordinate_system':{'subtype':'ellipsoidal','axis':[{'name':'Geodetic latitude','abbreviation':'Lat','direction':'north','unit':'degree'},{'name':'Geodetic longitude','abbreviation':'Lon','direction':'east','unit':'degree'}]}},{'type':'VerticalCRS','name':'SHD height','datum':{'type':'VerticalReferenceFrame','name':'Singapore Height Datum'},'coordinate_system':{'subtype':'vertical','axis':[{'name':'Gravity-related height','abbreviation':'H','direction':'up','unit':'metre'}]}}],'scope':'Engineering survey, GIS, topographic mapping.','area':'Singapore - onshore and offshore.','bbox':{'south_latitude':1.13,'west_longitude':103.59,'north_latitude':1.47,'east_longitude':104.07},'id':{'authority':'EPSG','code':6917}} |
| asWKT | COMPOUNDCRS['SVY21 + SHD height',GEOGCRS['SVY21',DATUM['SVY21',ELLIPSOID['WGS 84',6378137,298.257223563,LENGTHUNIT['metre',1]]],PRIMEM['Greenwich',0,A (...)NGLEUNIT['degree',0.0174532925199433]],CS[ellipsoidal,2],AXIS['geodetic latitude (Lat)',north,ORDER[1],ANGLEUNIT['degree',0.0174532925199433]],AXIS['geodetic longitude (Lon)',east,ORDER[2],ANGLEUNIT['degree',0.0174532925199433]]],VERTCRS['SHD height',VDATUM['Singapore Height Datum'],CS[vertical,1],AXIS['gravity-related height (H)',up,LENGTHUNIT['metre',1]]],USAGE[SCOPE['Engineering survey, GIS, topographic mapping.'],AREA['Singapore - onshore and offshore.'],BBOX[1.13,103.59,1.47,104.07]],ID['EPSG',6917]] |