EPSG:1226

Schwarzeck to WGS 84 (1)

Attributes

Geodetic CRS: Schwarzeck

Datum: Schwarzeck

Ellipsoid: Bessel Namibia (GLM)

Prime meridian: Greenwich

Data source: EPSG

Information source: U.S. Defense Mapping Agency TR8350.2 September 1987.

Revision date: 2023-11-19

Scope: Military survey.

Remarks: Derived at 3 stations. Accuracy 20m in each axis. Beware! Source CRS uses German legal metres, transformation parameter values are in (International) metres. See tfm code 1271 for example.

Method: Geocentric translations (geog2D domain)

Area of use: Namibia - onshore and offshore.

Description: (616.0, 97.0, -251.0, 0.0, 0.0, 0.0, 0.0)

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Definition: OGC Well Known Text 2 (2019)

COORDINATEOPERATION["Schwarzeck to WGS 84 (1)",
    VERSION["DMA-Nam"],
    SOURCECRS[
        GEOGCRS["Schwarzeck",
            DATUM["Schwarzeck",
                ELLIPSOID["Bessel Namibia (GLM)",6377397.155,299.1528128,
                    LENGTHUNIT["German legal metre",1.0000135965]]],
            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",4293]]],
    TARGETCRS[
        GEOGCRS["WGS 84",
            ENSEMBLE["World Geodetic System 1984 ensemble",
                MEMBER["World Geodetic System 1984 (Transit)"],
                MEMBER["World Geodetic System 1984 (G730)"],
                MEMBER["World Geodetic System 1984 (G873)"],
                MEMBER["World Geodetic System 1984 (G1150)"],
                MEMBER["World Geodetic System 1984 (G1674)"],
                MEMBER["World Geodetic System 1984 (G1762)"],
                MEMBER["World Geodetic System 1984 (G2139)"],
                ELLIPSOID["WGS 84",6378137,298.257223563,
                    LENGTHUNIT["metre",1]],
                ENSEMBLEACCURACY[2.0]],
            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",4326]]],
    METHOD["Geocentric translations (geog2D domain)",
        ID["EPSG",9603]],
    PARAMETER["X-axis translation",616,
        LENGTHUNIT["metre",1],
        ID["EPSG",8605]],
    PARAMETER["Y-axis translation",97,
        LENGTHUNIT["metre",1],
        ID["EPSG",8606]],
    PARAMETER["Z-axis translation",-251,
        LENGTHUNIT["metre",1],
        ID["EPSG",8607]],
    OPERATIONACCURACY[35.0],
    USAGE[
        SCOPE["Military survey."],
        AREA["Namibia - onshore and offshore."],
        BBOX[-30.64,8.24,-16.95,25.27]],
    ID["EPSG",1226],
    REMARK["Derived at 3 stations. Accuracy 20m in each axis. Beware! Source CRS uses German legal metres, transformation parameter values are in (International) metres. See tfm code 1271 for example."]]

Definition: PROJ.4

+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=push +v_3 +step +proj=cart +ellps=bess_nam +step +proj=helmert +x=616 +y=97 +z=-251 +step +inv +proj=cart +ellps=WGS84 +step +proj=pop +v_3 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:1226","+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=push +v_3 +step +proj=cart +ellps=bess_nam +step +proj=helmert +x=616 +y=97 +z=-251 +step +inv +proj=cart +ellps=WGS84 +step +proj=pop +v_3 +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": "Schwarzeck to WGS 84 (1)",
    "source_crs": {
        "type": "GeographicCRS",
        "name": "Schwarzeck",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Schwarzeck",
            "ellipsoid": {
                "name": "Bessel Namibia (GLM)",
                "semi_major_axis": {
                    "value": 6377397.155,
                    "unit": {
                        "type": "LinearUnit",
                        "name": "German legal metre",
                        "conversion_factor": 1.0000135965
                    }
                },
                "inverse_flattening": 299.1528128
            }
        },
        "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": 4293
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "WGS 84",
        "datum_ensemble": {
            "name": "World Geodetic System 1984 ensemble",
            "members": [
                {
                    "name": "World Geodetic System 1984 (Transit)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1166
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G730)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1152
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G873)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1153
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G1150)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1154
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G1674)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1155
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G1762)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1156
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G2139)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1309
                    }
                }
            ],
            "ellipsoid": {
                "name": "WGS 84",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257223563
            },
            "accuracy": "2.0",
            "id": {
                "authority": "EPSG",
                "code": 6326
            }
        },
        "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": 4326
        }
    },
    "method": {
        "name": "Geocentric translations (geog2D domain)",
        "id": {
            "authority": "EPSG",
            "code": 9603
        }
    },
    "parameters": [
        {
            "name": "X-axis translation",
            "value": 616,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8605
            }
        },
        {
            "name": "Y-axis translation",
            "value": 97,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8606
            }
        },
        {
            "name": "Z-axis translation",
            "value": -251,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8607
            }
        }
    ],
    "accuracy": "35.0",
    "scope": "Military survey.",
    "area": "Namibia - onshore and offshore.",
    "bbox": {
        "south_latitude": -30.64,
        "west_longitude": 8.24,
        "north_latitude": -16.95,
        "east_longitude": 25.27
    },
    "id": {
        "authority": "EPSG",
        "code": 1226
    },
    "remarks": "Derived at 3 stations. Accuracy 20m in each axis. Beware! Source CRS uses German legal metres, transformation parameter values are in (International) metres. See tfm code 1271 for example."
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=pipeline"
	"step"
	"proj=axisswap"
	"order=2,1"
	"step"
	"proj=unitconvert"
	"xy_in=deg"
	"xy_out=rad"
	"step"
	"proj=push"
	"v_3"
	"step"
	"proj=cart"
	"ellps=bess_nam"
	"step"
	"proj=helmert"
	"x=616"
	"y=97"
	"z=-251"
	"step"
	"inv"
	"proj=cart"
	"ellps=WGS84"
	"step"
	"proj=pop"
	"v_3"
	"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=push +v_3 +step +proj=cart +ellps=bess_nam +step +proj=helmert +x=616 +y=97 +z=-251 +step +inv +proj=cart +ellps=WGS84 +step +proj=pop +v_3 +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=push +v_3 +step +proj=cart +ellps=bess_nam +step +proj=helmert +x=616 +y=97 +z=-251 +step +inv +proj=cart +ellps=WGS84 +step +proj=pop +v_3 +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 ( 1226, 'EPSG', 1226, '+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=push +v_3 +step +proj=cart +ellps=bess_nam +step +proj=helmert +x=616 +y=97 +z=-251 +step +inv +proj=cart +ellps=WGS84 +step +proj=pop +v_3 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1', 'None');