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Geodetic CRS: Amersfoort
Datum: Amersfoort
Ellipsoid: Bessel 1841
Prime meridian: Greenwich
Data source: EPSG
Information source: Nederlandse Commissie voor Geodesie (NCG).
Revision date: 2023-01-17
Scope: Transformation of coordinates at 0.5m level of accuracy.
Remarks: Replaces Amersfoort to ETRS89 (2) (tfm code 1066). Replaced by Amersfoort to ETRS89 (6) (tfm code 4831). Dutch sources also quote an equivalent transformation using the Coordinate Frame 7-parameter method - see tfm code 15739.
Method: Molodensky-Badekas (CF geog2D domain)
Area of use: Netherlands - onshore, including Waddenzee, Dutch Wadden Islands and 12-mile offshore coastal zone.
Description: (0,)
Definition: OGC Well Known Text 2 (2019)
COORDINATEOPERATION["Amersfoort to ETRS89 (4)", VERSION["NCG-Nld 2004 MB"], SOURCECRS[ GEOGCRS["Amersfoort", DATUM["Amersfoort", ELLIPSOID["Bessel 1841",6377397.155,299.1528128, 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",4289]]], TARGETCRS[ GEOGCRS["ETRS89", ENSEMBLE["European Terrestrial Reference System 1989 ensemble", MEMBER["European Terrestrial Reference Frame 1989"], MEMBER["European Terrestrial Reference Frame 1990"], MEMBER["European Terrestrial Reference Frame 1991"], MEMBER["European Terrestrial Reference Frame 1992"], MEMBER["European Terrestrial Reference Frame 1993"], MEMBER["European Terrestrial Reference Frame 1994"], MEMBER["European Terrestrial Reference Frame 1996"], MEMBER["European Terrestrial Reference Frame 1997"], MEMBER["European Terrestrial Reference Frame 2000"], MEMBER["European Terrestrial Reference Frame 2005"], MEMBER["European Terrestrial Reference Frame 2014"], ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]], ENSEMBLEACCURACY[0.1]], 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",4258]]], METHOD["Molodensky-Badekas (CF geog2D domain)", ID["EPSG",9636]], PARAMETER["X-axis translation",593.0297, LENGTHUNIT["metre",1], ID["EPSG",8605]], PARAMETER["Y-axis translation",26.0038, LENGTHUNIT["metre",1], ID["EPSG",8606]], PARAMETER["Z-axis translation",478.7534, LENGTHUNIT["metre",1], ID["EPSG",8607]], PARAMETER["X-axis rotation",1.9725, ANGLEUNIT["microradian",1E-06], ID["EPSG",8608]], PARAMETER["Y-axis rotation",-1.7004, ANGLEUNIT["microradian",1E-06], ID["EPSG",8609]], PARAMETER["Z-axis rotation",9.0677, ANGLEUNIT["microradian",1E-06], ID["EPSG",8610]], PARAMETER["Scale difference",4.0812, SCALEUNIT["parts per million",1E-06], ID["EPSG",8611]], PARAMETER["Ordinate 1 of evaluation point",3903453.1482, LENGTHUNIT["metre",1], ID["EPSG",8617]], PARAMETER["Ordinate 2 of evaluation point",368135.3134, LENGTHUNIT["metre",1], ID["EPSG",8618]], PARAMETER["Ordinate 3 of evaluation point",5012970.3051, LENGTHUNIT["metre",1], ID["EPSG",8667]], OPERATIONACCURACY[0.5], USAGE[ SCOPE["Transformation of coordinates at 0.5m level of accuracy."], AREA["Netherlands - onshore, including Waddenzee, Dutch Wadden Islands and 12-mile offshore coastal zone."], BBOX[50.75,3.2,53.7,7.22]], ID["EPSG",15740], REMARK["Replaces Amersfoort to ETRS89 (2) (tfm code 1066). Replaced by Amersfoort to ETRS89 (6) (tfm code 4831). Dutch sources also quote an equivalent transformation using the Coordinate Frame 7-parameter method - see tfm code 15739."]]
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=bessel +step +proj=molobadekas +x=593.0297 +y=26.0038 +z=478.7534 +rx=0.406857330322398 +ry=-0.350732676542563 +rz=1.8703473836068 +s=4.0812 +px=3903453.1482 +py=368135.3134 +pz=5012970.3051 +convention=coordinate_frame +step +inv +proj=cart +ellps=GRS80 +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:15740","+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=bessel +step +proj=molobadekas +x=593.0297 +y=26.0038 +z=478.7534 +rx=0.406857330322398 +ry=-0.350732676542563 +rz=1.8703473836068 +s=4.0812 +px=3903453.1482 +py=368135.3134 +pz=5012970.3051 +convention=coordinate_frame +step +inv +proj=cart +ellps=GRS80 +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": "Amersfoort to ETRS89 (4)", "source_crs": { "type": "GeographicCRS", "name": "Amersfoort", "datum": { "type": "GeodeticReferenceFrame", "name": "Amersfoort", "ellipsoid": { "name": "Bessel 1841", "semi_major_axis": 6377397.155, "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": 4289 } }, "target_crs": { "type": "GeographicCRS", "name": "ETRS89", "datum_ensemble": { "name": "European Terrestrial Reference System 1989 ensemble", "members": [ { "name": "European Terrestrial Reference Frame 1989", "id": { "authority": "EPSG", "code": 1178 } }, { "name": "European Terrestrial Reference Frame 1990", "id": { "authority": "EPSG", "code": 1179 } }, { "name": "European Terrestrial Reference Frame 1991", "id": { "authority": "EPSG", "code": 1180 } }, { "name": "European Terrestrial Reference Frame 1992", "id": { "authority": "EPSG", "code": 1181 } }, { "name": "European Terrestrial Reference Frame 1993", "id": { "authority": "EPSG", "code": 1182 } }, { "name": "European Terrestrial Reference Frame 1994", "id": { "authority": "EPSG", "code": 1183 } }, { "name": "European Terrestrial Reference Frame 1996", "id": { "authority": "EPSG", "code": 1184 } }, { "name": "European Terrestrial Reference Frame 1997", "id": { "authority": "EPSG", "code": 1185 } }, { "name": "European Terrestrial Reference Frame 2000", "id": { "authority": "EPSG", "code": 1186 } }, { "name": "European Terrestrial Reference Frame 2005", "id": { "authority": "EPSG", "code": 1204 } }, { "name": "European Terrestrial Reference Frame 2014", "id": { "authority": "EPSG", "code": 1206 } } ], "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 }, "accuracy": "0.1", "id": { "authority": "EPSG", "code": 6258 } }, "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": 4258 } }, "method": { "name": "Molodensky-Badekas (CF geog2D domain)", "id": { "authority": "EPSG", "code": 9636 } }, "parameters": [ { "name": "X-axis translation", "value": 593.0297, "unit": "metre", "id": { "authority": "EPSG", "code": 8605 } }, { "name": "Y-axis translation", "value": 26.0038, "unit": "metre", "id": { "authority": "EPSG", "code": 8606 } }, { "name": "Z-axis translation", "value": 478.7534, "unit": "metre", "id": { "authority": "EPSG", "code": 8607 } }, { "name": "X-axis rotation", "value": 1.9725, "unit": { "type": "AngularUnit", "name": "microradian", "conversion_factor": 1e-06 }, "id": { "authority": "EPSG", "code": 8608 } }, { "name": "Y-axis rotation", "value": -1.7004, "unit": { "type": "AngularUnit", "name": "microradian", "conversion_factor": 1e-06 }, "id": { "authority": "EPSG", "code": 8609 } }, { "name": "Z-axis rotation", "value": 9.0677, "unit": { "type": "AngularUnit", "name": "microradian", "conversion_factor": 1e-06 }, "id": { "authority": "EPSG", "code": 8610 } }, { "name": "Scale difference", "value": 4.0812, "unit": { "type": "ScaleUnit", "name": "parts per million", "conversion_factor": 1e-06 }, "id": { "authority": "EPSG", "code": 8611 } }, { "name": "Ordinate 1 of evaluation point", "value": 3903453.1482, "unit": "metre", "id": { "authority": "EPSG", "code": 8617 } }, { "name": "Ordinate 2 of evaluation point", "value": 368135.3134, "unit": "metre", "id": { "authority": "EPSG", "code": 8618 } }, { "name": "Ordinate 3 of evaluation point", "value": 5012970.3051, "unit": "metre", "id": { "authority": "EPSG", "code": 8667 } } ], "accuracy": "0.5", "scope": "Transformation of coordinates at 0.5m level of accuracy.", "area": "Netherlands - onshore, including Waddenzee, Dutch Wadden Islands and 12-mile offshore coastal zone.", "bbox": { "south_latitude": 50.75, "west_longitude": 3.2, "north_latitude": 53.7, "east_longitude": 7.22 }, "id": { "authority": "EPSG", "code": 15740 }, "remarks": "Replaces Amersfoort to ETRS89 (2) (tfm code 1066). Replaced by Amersfoort to ETRS89 (6) (tfm code 4831). Dutch sources also quote an equivalent transformation using the Coordinate Frame 7-parameter method - see tfm code 15739." }
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=bessel" "step" "proj=molobadekas" "x=593.0297" "y=26.0038" "z=478.7534" "rx=0.406857330322398" "ry=-0.350732676542563" "rz=1.8703473836068" "s=4.0812" "px=3903453.1482" "py=368135.3134" "pz=5012970.3051" "convention=coordinate_frame" "step" "inv" "proj=cart" "ellps=GRS80" "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=bessel +step +proj=molobadekas +x=593.0297 +y=26.0038 +z=478.7534 +rx=0.406857330322398 +ry=-0.350732676542563 +rz=1.8703473836068 +s=4.0812 +px=3903453.1482 +py=368135.3134 +pz=5012970.3051 +convention=coordinate_frame +step +inv +proj=cart +ellps=GRS80 +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=bessel +step +proj=molobadekas +x=593.0297 +y=26.0038 +z=478.7534 +rx=0.406857330322398 +ry=-0.350732676542563 +rz=1.8703473836068 +s=4.0812 +px=3903453.1482 +py=368135.3134 +pz=5012970.3051 +convention=coordinate_frame +step +inv +proj=cart +ellps=GRS80 +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 ( 15740, 'EPSG', 15740, '+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=bessel +step +proj=molobadekas +x=593.0297 +y=26.0038 +z=478.7534 +rx=0.406857330322398 +ry=-0.350732676542563 +rz=1.8703473836068 +s=4.0812 +px=3903453.1482 +py=368135.3134 +pz=5012970.3051 +convention=coordinate_frame +step +inv +proj=cart +ellps=GRS80 +step +proj=pop +v_3 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1', 'None');
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