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Geodetic CRS: RGNC91-93
Datum: Reseau Geodesique de Nouvelle Caledonie 91-93
Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: Bureau de la Géodésie et du Nivellement, Service Topographique, DITTT.
Revision date: 2023-03-31
Scope: Reversible geoid model transformation.
Remarks: Reversible alternative to RGNC91-93 to NGNC08 height (1) (code 9352).
Method: Geog3D to Geog2D+GravityRelatedHeight (IGN2009)
Area of use: New Caledonia - Belep, Grande Terre, Ile des Pins, Loyalty Islands (Lifou, Mare, Ouvea).
Description: (0,)
Definition: OGC Well Known Text 2 (2019)
COORDINATEOPERATION["RGNC91-93 to RGNC91-93 + NGNC08 height (1)", VERSION["BGN-Ncl RANC08"], SOURCECRS[ GEOGCRS["RGNC91-93", DATUM["Reseau Geodesique de Nouvelle Caledonie 91-93", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], CS[ellipsoidal,3], AXIS["geodetic latitude (Lat)",north, ORDER[1], ANGLEUNIT["degree",0.0174532925199433]], AXIS["geodetic longitude (Lon)",east, ORDER[2], ANGLEUNIT["degree",0.0174532925199433]], AXIS["ellipsoidal height (h)",up, ORDER[3], LENGTHUNIT["metre",1]], ID["EPSG",4907]]], TARGETCRS[ COMPOUNDCRS["RGNC91-93 + NGNC08 height", GEOGCRS["RGNC91-93", DATUM["Reseau Geodesique de Nouvelle Caledonie 91-93", 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]]], VERTCRS["NGNC08 height", VDATUM["Nivellement General de Nouvelle Caledonie 2008"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]]], ID["EPSG",9540]]], METHOD["Geog3D to Geog2D+GravityRelatedHeight (IGN2009)", ID["EPSG",1095]], PARAMETERFILE["Geoid (height correction) model file","Ranc08_Circe.mnt"], INTERPOLATIONCRS[ GEOGCRS["RGNC91-93", DATUM["Reseau Geodesique de Nouvelle Caledonie 91-93", 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]]]], OPERATIONACCURACY[0.03], USAGE[ SCOPE["Reversible geoid model transformation."], AREA["New Caledonia - Belep, Grande Terre, Ile des Pins, Loyalty Islands (Lifou, Mare, Ouvea)."], BBOX[-22.73,163.54,-19.5,168.19]], ID["EPSG",9640], REMARK["Reversible alternative to RGNC91-93 to NGNC08 height (1) (code 9352)."]]
Definition: PROJ.4
+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=nc_dittt_Ranc08_Circe.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1
Definition: JavaScript (Proj4js)
proj4.defs("EPSG:9640","+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=nc_dittt_Ranc08_Circe.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1");
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Transformation", "name": "RGNC91-93 to RGNC91-93 + NGNC08 height (1)", "source_crs": { "type": "GeographicCRS", "name": "RGNC91-93", "datum": { "type": "GeodeticReferenceFrame", "name": "Reseau Geodesique de Nouvelle Caledonie 91-93", "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" }, { "name": "Ellipsoidal height", "abbreviation": "h", "direction": "up", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 4907 } }, "target_crs": { "type": "CompoundCRS", "name": "RGNC91-93 + NGNC08 height", "components": [ { "type": "GeographicCRS", "name": "RGNC91-93", "datum": { "type": "GeodeticReferenceFrame", "name": "Reseau Geodesique de Nouvelle Caledonie 91-93", "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" } ] } }, { "type": "VerticalCRS", "name": "NGNC08 height", "datum": { "type": "VerticalReferenceFrame", "name": "Nivellement General de Nouvelle Caledonie 2008" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] } } ], "id": { "authority": "EPSG", "code": 9540 } }, "interpolation_crs": { "type": "GeographicCRS", "name": "RGNC91-93", "datum": { "type": "GeodeticReferenceFrame", "name": "Reseau Geodesique de Nouvelle Caledonie 91-93", "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": 4749 } }, "method": { "name": "Geog3D to Geog2D+GravityRelatedHeight (IGN2009)", "id": { "authority": "EPSG", "code": 1095 } }, "parameters": [ { "name": "Geoid (height correction) model file", "value": "Ranc08_Circe.mnt", "id": { "authority": "EPSG", "code": 8666 } } ], "accuracy": "0.03", "scope": "Reversible geoid model transformation.", "area": "New Caledonia - Belep, Grande Terre, Ile des Pins, Loyalty Islands (Lifou, Mare, Ouvea).", "bbox": { "south_latitude": -22.73, "west_longitude": 163.54, "north_latitude": -19.5, "east_longitude": 168.19 }, "id": { "authority": "EPSG", "code": 9640 }, "remarks": "Reversible alternative to RGNC91-93 to NGNC08 height (1) (code 9352)." }
Definition: MapServer - MAPfile
PROJECTION "proj=pipeline" "step" "proj=axisswap" "order=2,1" "step" "proj=unitconvert" "xy_in=deg" "xy_out=rad" "step" "inv" "proj=vgridshift" "grids=nc_dittt_Ranc08_Circe.tif" "multiplier=1" "step" "proj=unitconvert" "xy_in=rad" "xy_out=deg" "step" "proj=axisswap" "order=2,1" END
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=nc_dittt_Ranc08_Circe.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1"> <Layer srs="+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=nc_dittt_Ranc08_Circe.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 9640, 'EPSG', 9640, '+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=nc_dittt_Ranc08_Circe.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1', 'None');
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