EPSG:9735

ED50 to IGM95 (1)

Attributes

Geodetic CRS: ED50

Datum: European Datum 1950

Ellipsoid: International 1924

Prime meridian: Greenwich

Data source: EPSG

Information source: Istituto Geografico Militare (IGM), www.igmi.org

Revision date: 2021-05-13

Scope: Transformation of coordinates at 0.2m level of accuracy.

Remarks: For the reverse transformation from IGM95 to ED50, iteration may be avoided by using an alternative grid file (35160622_47161840_F89_E50.gsb).

Method: NTv2

Area of use: Italy - onshore and offshore between 6°22'E and 18°40'E and north of 35°16'N; San Marino, Vatican City State.

Description: (0,)

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SimpleMap
Italy - onshore and offshore between 6°22'E and 18°40'E and north of 35°16'N; San Marino, Vatican City State.

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Definition: OGC Well Known Text 2 (2019)

COORDINATEOPERATION["ED50 to IGM95 (1)",
    VERSION["IGM-Ita"],
    SOURCECRS[
        GEOGCRS["ED50",
            DATUM["European Datum 1950",
                ELLIPSOID["International 1924",6378388,297,
                    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]],
            ID["EPSG",4230]]],
    TARGETCRS[
        GEOGCRS["IGM95",
            DATUM["Istituto Geografico Militaire 1995",
                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]],
            ID["EPSG",4670]]],
    METHOD["NTv2",
        ID["EPSG",9615]],
    PARAMETERFILE["Latitude and longitude difference file","35160622_47161840_E50_F89.gsb"],
    OPERATIONACCURACY[0.2],
    USAGE[
        SCOPE["Transformation of coordinates at 0.2m level of accuracy."],
        AREA["Italy - onshore and offshore between 6°22'E and 18°40'E and north of 35°16'N; San Marino, Vatican City State."],
        BBOX[35.26,6.36,47.1,18.67]],
    ID["EPSG",9735],
    REMARK["For the reverse transformation from IGM95 to ED50, iteration may be avoided by using an alternative grid file (35160622_47161840_F89_E50.gsb)."]]

Definition: PROJ.4

+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=hgridshift +grids=35160622_47161840_E50_F89.gsb +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:9735","+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=hgridshift +grids=35160622_47161840_E50_F89.gsb +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": "ED50 to IGM95 (1)",
    "source_crs": {
        "type": "GeographicCRS",
        "name": "ED50",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "European Datum 1950",
            "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": 4230
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "IGM95",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Istituto Geografico Militaire 1995",
            "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": 4670
        }
    },
    "method": {
        "name": "NTv2",
        "id": {
            "authority": "EPSG",
            "code": 9615
        }
    },
    "parameters": [
        {
            "name": "Latitude and longitude difference file",
            "value": "35160622_47161840_E50_F89.gsb",
            "id": {
                "authority": "EPSG",
                "code": 8656
            }
        }
    ],
    "accuracy": "0.2",
    "scope": "Transformation of coordinates at 0.2m level of accuracy.",
    "area": "Italy - onshore and offshore between 6°22'E and 18°40'E and north of 35°16'N; San Marino, Vatican City State.",
    "bbox": {
        "south_latitude": 35.26,
        "west_longitude": 6.36,
        "north_latitude": 47.1,
        "east_longitude": 18.67
    },
    "id": {
        "authority": "EPSG",
        "code": 9735
    },
    "remarks": "For the reverse transformation from IGM95 to ED50, iteration may be avoided by using an alternative grid file (35160622_47161840_F89_E50.gsb)."
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=pipeline"
	"step"
	"proj=axisswap"
	"order=2,1"
	"step"
	"proj=unitconvert"
	"xy_in=deg"
	"xy_out=rad"
	"step"
	"proj=hgridshift"
	"grids=35160622_47161840_E50_F89.gsb"
	"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 +proj=hgridshift +grids=35160622_47161840_E50_F89.gsb +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 +proj=hgridshift +grids=35160622_47161840_E50_F89.gsb +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 ( 9735, 'EPSG', 9735, '+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=hgridshift +grids=35160622_47161840_E50_F89.gsb +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1', 'None');