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Method: NTv2
Grid Files: nzgd2kgrid0005.gsb
Remarks: These same parameter values may be used to transform to WGS 84 - see NZGD49 to WGS 84 (4) (code 1670).
Information source: Land Information New Zealand: LINZS25000 Standard for New Zealand Geodetic Datum 2000; 16 November 2007.
Revision date: 2019-07-16
Unit: metre
Geodetic CRS: NZGD49
Datum: New Zealand Geodetic Datum 1949
Ellipsoid: International 1924
Prime meridian: Greenwich
Data source: EPSG
Information source: LINZ
Revision date: 2012-01-21
Scope: Engineering survey, topographic mapping.
Remarks: Replaces 27291 (NZGD49 / North Island Grid) and 27292 (NZGD49 / South Island Grid) from 1972. Replaced by NZGD2000 / New Zealand Transverse Mercator 2000 from July 2001.
Area of use: New Zealand - North Island, South Island, Stewart Island - onshore.
Coordinate system: Cartesian 2D CS. Axes: easting, northing (E,N). Orientations: east, north. UoM: m.
&stroke=red&width=2&path=-47.65,165.87|-33.89,165.87|-33.89,179.27|-47.65,179.27|-47.65,165.87)
Center coordinates
2473681.44 6048409.81
Projected bounds:
2019941.02 5264582.48
3087023.27 6722938.64
WGS84 bounds:
165.87 -47.65
179.27 -33.89
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ PROJCRS["NZGD49 / New Zealand Map Grid", BASEGEOGCRS["NZGD49", DATUM["New Zealand Geodetic Datum 1949", ELLIPSOID["International 1924",6378388,297, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4272]], CONVERSION["New Zealand Map Grid", METHOD["New Zealand Map Grid", ID["EPSG",9811]], PARAMETER["Latitude of natural origin",-41, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",173, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["False easting",2510000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",6023150, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["(E)",east, ORDER[1], LENGTHUNIT["metre",1]], AXIS["(N)",north, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Engineering survey, topographic mapping."], AREA["New Zealand - North Island, South Island, Stewart Island - onshore."], BBOX[-47.33,166.37,-34.1,178.63]], ID["EPSG",27200]]], TARGETCRS[ GEOGCRS["NZGD2000", DATUM["New Zealand Geodetic Datum 2000", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]]], 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["New Zealand - onshore and offshore. Includes Antipodes Islands, Auckland Islands, Bounty Islands, Chatham Islands, Cambell Island, Kermadec Islands, Raoul Island and Snares Islands."], BBOX[-55.95,160.6,-25.88,-171.2]], ID["EPSG",4167]]], ABRIDGEDTRANSFORMATION["NZGD49 to NZGD2000 (3)", METHOD["NTv2", ID["EPSG",9615]], PARAMETERFILE["Latitude and longitude difference file","nzgd2kgrid0005.gsb"], USAGE[ SCOPE["Transformation of coordinates at 0.2m level of accuracy."], AREA["New Zealand - North Island, South Island, Stewart Island - onshore and nearshore."], BBOX[-47.65,165.87,-33.89,179.27]], ID["EPSG",1568], REMARK["These same parameter values may be used to transform to WGS 84 - see NZGD49 to WGS 84 (4) (code 1670)."]]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "ProjectedCRS", "name": "NZGD49 / New Zealand Map Grid", "base_crs": { "name": "NZGD49", "datum": { "type": "GeodeticReferenceFrame", "name": "New Zealand Geodetic Datum 1949", "ellipsoid": { "name": "International 1924", "semi_major_axis": 6378388, "inverse_flattening": 297 } }, "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": 4272 } }, "conversion": { "name": "New Zealand Map Grid", "method": { "name": "New Zealand Map Grid", "id": { "authority": "EPSG", "code": 9811 } }, "parameters": [ { "name": "Latitude of natural origin", "value": -41, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": 173, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "False easting", "value": 2510000, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 6023150, "unit": "metre", "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "E", "direction": "east", "unit": "metre" }, { "name": "Northing", "abbreviation": "N", "direction": "north", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 27200 } }, "target_crs": { "type": "GeographicCRS", "name": "NZGD2000", "datum": { "type": "GeodeticReferenceFrame", "name": "New Zealand Geodetic Datum 2000", "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": 4167 } }, "transformation": { "name": "NZGD49 to NZGD2000 (3)", "method": { "name": "NTv2", "id": { "authority": "EPSG", "code": 9615 } }, "parameters": [ { "name": "Latitude and longitude difference file", "value": "nzgd2kgrid0005.gsb", "id": { "authority": "EPSG", "code": 8656 } } ], "id": { "authority": "EPSG", "code": 1568 } } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=nzmg +lat_0=-41 +lon_0=173 +x_0=2510000 +y_0=6023150 +ellps=intl +units=m +no_defs +type=crs"> <Layer srs="+proj=nzmg +lat_0=-41 +lon_0=173 +x_0=2510000 +y_0=6023150 +ellps=intl +units=m +no_defs +type=crs"> </Layer> </Map>
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