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Name: HD72 to ETRS89-HUN [ETRF2000] (2)
Method: NTv2
Grid Files: hu_bme_hd72corr.gsb
Remarks: Emulation to better than 2mm of the official SGO EHT transformation. ETRF2000 coordinates of the grid nodes were converted to HD72 using the online EHT tool. For cadastral and other legal purposes the official transformation (CT code 10663) must be used.
Information source: Budapest University of Technology and Economics (BME) - Faculty of Civil Engineering. https://github.com/OSGeoLabBp/eov2etrs/blob/master/etrs2eov_doc.rst
Revision date: 2025-10-31
Unit: metre
Geodetic CRS: HD72
Datum: Hungarian Datum 1972
Ellipsoid: GRS 1967
Prime meridian: Greenwich
Data source: EPSG
Revision date: 1997-07-22
Scope: Engineering survey, topographic mapping.
Area of use: Hungary.
Coordinate system: Cartesian 2D CS. Axes: easting, northing (Y,X). Orientations: east, north. UoM: m.
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ PROJCRS["HD72 / EOV", BASEGEOGCRS["HD72", DATUM["Hungarian Datum 1972", ELLIPSOID["GRS 1967",6378160,298.247167427, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4237]], CONVERSION["Egyseges Orszagos Vetuleti", METHOD["Hotine Oblique Mercator (variant B)", ID["EPSG",9815]], PARAMETER["Latitude of projection centre",47.1443937222222, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8811]], PARAMETER["Longitude of projection centre",19.0485717777778, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8812]], PARAMETER["Azimuth at projection centre",90, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8813]], PARAMETER["Angle from Rectified to Skew Grid",90, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8814]], PARAMETER["Scale factor at projection centre",0.99993, SCALEUNIT["unity",1], ID["EPSG",8815]], PARAMETER["Easting at projection centre",650000, LENGTHUNIT["metre",1], ID["EPSG",8816]], PARAMETER["Northing at projection centre",200000, LENGTHUNIT["metre",1], ID["EPSG",8817]]], CS[Cartesian,2], AXIS["easting (Y)",east, ORDER[1], LENGTHUNIT["metre",1]], AXIS["northing (X)",north, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Engineering survey, topographic mapping."], AREA["Hungary."], BBOX[45.74,16.11,48.58,22.9]], ID["EPSG",23700]]], TARGETCRS[ GEOGCRS["ETRS89-HUN [ETRF2000]", DATUM["ETRS89-HUN [ETRF2000]", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]], ANCHOREPOCH[2024]], PRIMEM["Greenwich",0, ANGLEUNIT["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]], USAGE[ SCOPE["Horizontal component of 3D system."], AREA["Hungary."], BBOX[45.74,16.11,48.58,22.9]], ID["EPSG",11163], REMARK["Horizontal component of national realization of ETRS89 in Hungary."]]], ABRIDGEDTRANSFORMATION["HD72 to ETRS89-HUN [ETRF2000] (2)", METHOD["NTv2", ID["EPSG",9615]], PARAMETERFILE["Latitude and longitude difference file","hu_bme_hd72corr.gsb"], USAGE[ SCOPE["Geodesy, engineering survey, topographic mapping."], AREA["Hungary."], BBOX[45.74,16.11,48.58,22.9]], ID["EPSG",10668], REMARK["Emulation to better than 2mm of the official SGO EHT transformation. ETRF2000 coordinates of the grid nodes were converted to HD72 using the online EHT tool. For cadastral and other legal purposes the official transformation (CT code 10663) must be used."]]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "ProjectedCRS", "name": "HD72 / EOV", "base_crs": { "type": "GeographicCRS", "name": "HD72", "datum": { "type": "GeodeticReferenceFrame", "name": "Hungarian Datum 1972", "ellipsoid": { "name": "GRS 1967", "semi_major_axis": 6378160, "inverse_flattening": 298.247167427 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 4237 }, "remarks": "Replaced HD1909 (EPSG CRS code 3819)." }, "conversion": { "name": "Egyseges Orszagos Vetuleti", "method": { "name": "Hotine Oblique Mercator (variant B)", "id": { "authority": "EPSG", "code": 9815 } }, "parameters": [ { "name": "Latitude of projection centre", "value": 47.1443937222222, "unit": "degree", "id": { "authority": "EPSG", "code": 8811 } }, { "name": "Longitude of projection centre", "value": 19.0485717777778, "unit": "degree", "id": { "authority": "EPSG", "code": 8812 } }, { "name": "Azimuth at projection centre", "value": 90, "unit": "degree", "id": { "authority": "EPSG", "code": 8813 } }, { "name": "Angle from Rectified to Skew Grid", "value": 90, "unit": "degree", "id": { "authority": "EPSG", "code": 8814 } }, { "name": "Scale factor at projection centre", "value": 0.99993, "unit": "unity", "id": { "authority": "EPSG", "code": 8815 } }, { "name": "Easting at projection centre", "value": 650000, "unit": "metre", "id": { "authority": "EPSG", "code": 8816 } }, { "name": "Northing at projection centre", "value": 200000, "unit": "metre", "id": { "authority": "EPSG", "code": 8817 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "Y", "direction": "east", "unit": "metre" }, { "name": "Northing", "abbreviation": "X", "direction": "north", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 23700 } }, "target_crs": { "type": "GeographicCRS", "name": "ETRS89-HUN [ETRF2000]", "datum": { "type": "GeodeticReferenceFrame", "name": "ETRS89-HUN [ETRF2000]", "anchor_epoch": 2024, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 11163 }, "remarks": "Horizontal component of national realization of ETRS89 in Hungary." }, "transformation": { "name": "HD72 to ETRS89-HUN [ETRF2000] (2)", "method": { "name": "NTv2", "id": { "authority": "EPSG", "code": 9615 } }, "parameters": [ { "name": "Latitude and longitude difference file", "value": "hu_bme_hd72corr.gsb", "id": { "authority": "EPSG", "code": 8656 } } ], "id": { "authority": "EPSG", "code": 10668 } } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=somerc +lat_0=47.1443937222222 +lon_0=19.0485717777778 +k_0=0.99993 +x_0=650000 +y_0=200000 +ellps=GRS67 +units=m +no_defs +type=crs"> <Layer srs="+proj=somerc +lat_0=47.1443937222222 +lon_0=19.0485717777778 +k_0=0.99993 +x_0=650000 +y_0=200000 +ellps=GRS67 +units=m +no_defs +type=crs"> </Layer> </Map>
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