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Remarks: Approximation at the +/- 1m level assuming that CHTRF95 is equivalent to WGS 84.
Information source: OGP
Revision date: 1999-10-20
Unit: metre
Geodetic CRS: CH1903+
Datum: CH1903+
Ellipsoid: Bessel 1841
Prime meridian: Greenwich
Data source: EPSG
Information source: Bundesamt für Landestopografie swisstopo; www.swisstopo.ch
Revision date: 2015-11-25
Scope: Cadastre, engineering survey, topographic mapping (large and medium scale).
Remarks: Replaces CH1903/LV03 (code 21781).
Area of use: Liechtenstein; Switzerland.
Coordinate system: Cartesian 2D CS. Axes: easting, northing (E,N). Orientations: east, north. UoM: m.
&stroke=red&width=2&path=45.82,5.96|47.81,5.96|47.81,10.49|45.82,10.49|45.82,5.96)
Center coordinates
2660013.54 1185171.98
Projected bounds:
2485071.58 1074261.72
2837119.8 1299941.79
WGS84 bounds:
5.96 45.82
10.49 47.81
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ BOUNDCRS[ SOURCECRS[ PROJCRS["CH1903+ / LV95", BASEGEOGCRS["CH1903+", DATUM["CH1903+", ELLIPSOID["Bessel 1841",6377397.155,299.1528128, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4150]], CONVERSION["Swiss Oblique Mercator 1995", METHOD["Hotine Oblique Mercator (variant B)", ID["EPSG",9815]], PARAMETER["Latitude of projection centre",46.9524055555556, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8811]], PARAMETER["Longitude of projection centre",7.43958333333333, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8812]], PARAMETER["Azimuth of initial line",90, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8813]], PARAMETER["Angle from Rectified to Skew Grid",90, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8814]], PARAMETER["Scale factor on initial line",1, SCALEUNIT["unity",1], ID["EPSG",8815]], PARAMETER["Easting at projection centre",2600000, LENGTHUNIT["metre",1], ID["EPSG",8816]], PARAMETER["Northing at projection centre",1200000, LENGTHUNIT["metre",1], ID["EPSG",8817]]], CS[Cartesian,2], AXIS["(E)",east, ORDER[1], LENGTHUNIT["metre",1]], AXIS["(N)",north, ORDER[2], LENGTHUNIT["metre",1]], ID["EPSG",2056]]], TARGETCRS[ GEOGCRS["CHTRS95", DATUM["Swiss Terrestrial Reference System 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",4151]]], ABRIDGEDTRANSFORMATION["CH1903+ to CHTRS95 (1)", METHOD["Geocentric translations (geog2D domain)", ID["EPSG",9603]], PARAMETER["X-axis translation",674.374, ID["EPSG",8605]], PARAMETER["Y-axis translation",15.056, ID["EPSG",8606]], PARAMETER["Z-axis translation",405.346, ID["EPSG",8607]], ID["EPSG",1509]]]], 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]], USAGE[ SCOPE["Horizontal component of 3D system."], AREA["World."], BBOX[-90,-180,90,180]], ID["EPSG",4326]]], ABRIDGEDTRANSFORMATION["CHTRS95 to WGS 84 (1)", METHOD["Geocentric translations (geog2D domain)", ID["EPSG",9603]], PARAMETER["X-axis translation",0, ID["EPSG",8605]], PARAMETER["Y-axis translation",0, ID["EPSG",8606]], PARAMETER["Z-axis translation",0, ID["EPSG",8607]], USAGE[ SCOPE["(null/copy) Approximation for medium and low accuracy applications assuming equality between plate-fixed static and earth-fixed dynamic CRSs, ignoring static/dynamic CRS differences."], AREA["Liechtenstein; Switzerland."], BBOX[45.82,5.96,47.81,10.49]], ID["EPSG",1511], REMARK["For many purposes CHTRS95 can be considered to be coincident with WGS 84."]]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "BoundCRS", "source_crs": { "type": "ProjectedCRS", "name": "CH1903+ / LV95", "base_crs": { "name": "CH1903+", "datum": { "type": "GeodeticReferenceFrame", "name": "CH1903+", "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": 4150 } }, "conversion": { "name": "Swiss Oblique Mercator 1995", "method": { "name": "Hotine Oblique Mercator (variant B)", "id": { "authority": "EPSG", "code": 9815 } }, "parameters": [ { "name": "Latitude of projection centre", "value": 46.9524055555556, "unit": "degree", "id": { "authority": "EPSG", "code": 8811 } }, { "name": "Longitude of projection centre", "value": 7.43958333333333, "unit": "degree", "id": { "authority": "EPSG", "code": 8812 } }, { "name": "Azimuth of initial line", "value": 90, "unit": "degree", "id": { "authority": "EPSG", "code": 8813 } }, { "name": "Angle from Rectified to Skew Grid", "value": 90, "unit": "degree", "id": { "authority": "EPSG", "code": 8814 } }, { "name": "Scale factor on initial line", "value": 1, "unit": "unity", "id": { "authority": "EPSG", "code": 8815 } }, { "name": "Easting at projection centre", "value": 2600000, "unit": "metre", "id": { "authority": "EPSG", "code": 8816 } }, { "name": "Northing at projection centre", "value": 1200000, "unit": "metre", "id": { "authority": "EPSG", "code": 8817 } } ] }, "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": 2056 } }, "target_crs": { "type": "GeographicCRS", "name": "CHTRS95", "datum": { "type": "GeodeticReferenceFrame", "name": "Swiss Terrestrial Reference System 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": 4151 } }, "transformation": { "name": "CH1903+ to CHTRS95 (1)", "method": { "name": "Geocentric translations (geog2D domain)", "id": { "authority": "EPSG", "code": 9603 } }, "parameters": [ { "name": "X-axis translation", "value": 674.374, "unit": "metre", "id": { "authority": "EPSG", "code": 8605 } }, { "name": "Y-axis translation", "value": 15.056, "unit": "metre", "id": { "authority": "EPSG", "code": 8606 } }, { "name": "Z-axis translation", "value": 405.346, "unit": "metre", "id": { "authority": "EPSG", "code": 8607 } } ], "id": { "authority": "EPSG", "code": 1509 } } }, "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 } }, "transformation": { "name": "CHTRS95 to WGS 84 (1)", "source_crs": { "type": "GeographicCRS", "name": "CHTRS95", "datum": { "type": "GeodeticReferenceFrame", "name": "Swiss Terrestrial Reference System 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": 4151 } }, "method": { "name": "Geocentric translations (geog2D domain)", "id": { "authority": "EPSG", "code": 9603 } }, "parameters": [ { "name": "X-axis translation", "value": 0, "unit": "metre", "id": { "authority": "EPSG", "code": 8605 } }, { "name": "Y-axis translation", "value": 0, "unit": "metre", "id": { "authority": "EPSG", "code": 8606 } }, { "name": "Z-axis translation", "value": 0, "unit": "metre", "id": { "authority": "EPSG", "code": 8607 } } ], "id": { "authority": "EPSG", "code": 1511 } } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=somerc +lat_0=46.9524055555556 +lon_0=7.43958333333333 +k_0=1 +x_0=2600000 +y_0=1200000 +ellps=bessel +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs"> <Layer srs="+proj=somerc +lat_0=46.9524055555556 +lon_0=7.43958333333333 +k_0=1 +x_0=2600000 +y_0=1200000 +ellps=bessel +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs"> </Layer> </Map>
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