identifier |
description |
naming _system |
reverse _transform _valid |
sign _reversal |
source _reference |
source _content |
source |
version |
status |
|
|
naming _system .identifier |
|
|
|
|
|
ref _version .identifier |
|
Unknown |
The transformation method is unknown. |
EPSG preferred name |
False |
False |
|
POSC |
POSC |
epicentre 3.0 |
current |
concatenated |
The transformation is an ordered application of two or more known simple transformations. |
EPSG preferred name |
False |
False |
|
POSC |
POSC |
epicentre 2.2.3 |
current |
Transverse Mercator |
A transformation between geographic and projected coordinate systems, which conformally maps an ellipsoid onto a cylinder whose central axis is in the plane of the equator. |
EPSG preferred name |
True |
False |
EPSG Guidance note #7; Geographic and Projected Coordinate System Transformations; section 1.4.4 |
EPSG |
POSC |
epicentre 2.1 |
current |
Lambert Conic Conformal (1SP) |
A transformation between geographic and projected coordinate systems, which conformally maps an ellipsoid onto a cone whose central axis coincides with the polar axis. The method uses one standard parallel, and a scale factor at the origin. |
EPSG preferred name |
True |
False |
EPSG Guidance note #7; Geographic and Projected Coordinate System Transformations; section 1.4.1 |
EPSG |
POSC |
epicentre 2.1 |
current |
Lambert Conic Conformal (2SP) |
A transformation between geographic and projected coordinate systems, which conformally maps an ellipsoid onto a cone whose central axis coincides with the polar axis. The method uses two standard parallels. |
EPSG preferred name |
True |
False |
EPSG Guidance note #7; Geographic and Projected Coordinate System Transformations; section 1.4.1 |
EPSG |
POSC |
epicentre 2.1 |
current |
Lambert Conic Conformal (2SP Belgium) |
A transformation between geographic and projected coordinate systems, which conformally maps an ellipsoid onto a cone whose central axis coincides with the polar axis. The method has been modified by Helmert (similarity) transformation. |
EPSG preferred name |
True |
False |
EPSG Guidance note #7; Geographic and Projected Coordinate System Transformations; section 1.4.1 |
EPSG |
POSC |
epicentre 2.2 |
current |
Lambert Conic Near-Conformal |
A transformation between geographic and projected coordinate systems, which almost conformally maps an ellipsoid onto a cone whose central axis coincides with the polar axis. |
EPSG preferred name |
True |
False |
EPSG Guidance note #7; Geographic and Projected Coordinate System Transformations; section 1.4.1 |
EPSG |
POSC |
epicentre 3.0 |
current |
Mercator (1SP) |
A transformation between geographic and projected coordinate systems, which conformally maps an ellipsoid onto a cylinder whose central axis coincides with the polar axis. |
EPSG preferred name |
True |
False |
EPSG Guidance note #7; Geographic and Projected Coordinate System Transformations; section 1.4.2 |
EPSG |
POSC |
epicentre 2.2 |
current |
Mercator (2SP) |
A transformation between geographic and projected coordinate systems, which conformally maps an ellipsoid onto a cylinder whose central axis coincides with the polar axis. |
EPSG preferred name |
True |
False |
EPSG Guidance note #7; Geographic and Projected Coordinate System Transformations; section 1.4.2 |
EPSG |
POSC |
epicentre 2.2 |
current |
Laborde Oblique Mercator |
A transformation between geographic and projected coordinate systems, which conformally maps an ellipsoid onto a cylinder whose central axis is in the plane oblique to the equator. |
EPSG preferred name |
True |
False |
La nouvelle projection du Service Geographique de Madagascar; J. Laborde; 1928 |
EPSG |
POSC |
epicentre 2.1 |
current |
Hotine Oblique Mercator |
A transformation between geographic and projected coordinate systems, which conformally maps an ellipsoid onto a cylinder in contact with the ellipsoid along a geodesic. |
EPSG preferred name |
True |
False |
Guidance note #7; Geographic and Projected Coordinate System Transformations; section 1.4.5 |
EPSG |
POSC |
epicentre 2.1 |
current |
Transverse Mercator (South Oriented) |
A transformation between geographic and projected coordinate systems, which conformally maps an ellipsoid onto a cylinder whose central axis is in the plane of the equator. |
EPSG preferred name |
True |
False |
EPSG Guidance note #7; Geographic and Projected Coordinate System Transformations; section 1.4.4 |
EPSG |
POSC |
epicentre 2.1 |
current |
Polar Stereographic |
A transformation between geographic and projected coordinate systems, which conformally maps an ellipsoid onto a plane tangent to the ellipsoid at the pole. |
EPSG preferred name |
True |
False |
US Geological Survey Professional Paper 1395; Map Projections - A Working Manual; J. Snyder |
EPSG |
POSC |
epicentre 2.2 |
current |
Oblique Stereographic |
A transformation between geographic and projected coordinate systems, which conformally maps an ellipsoid onto a plane tangent to the ellipsoid at some point on the ellipsoid. |
EPSG preferred name |
True |
False |
EPSG Guidance note #7; Geographic and Projected Coordinate System Transformations; section 1.4.6 |
EPSG |
POSC |
epicentre 2.1 |
current |
New Zealand Map Grid |
A transformation between geographic and projected coordinate systems developed for the New Zealand area. |
EPSG preferred name |
True |
False |
New Zealand Department of Lands technical circular 1973/32 |
EPSG |
POSC |
epicentre 2.1 |
current |
Cassini-Soldner |
A transformation between geographic and projected coordinate systems, which is neither conformal nor equal area. |
EPSG preferred name |
True |
False |
EPSG Guidance note #7; Geographic and Projected Coordinate System Transformations; section 1.4.3 |
EPSG |
POSC |
epicentre 2.1 |
current |
Swiss Oblique Cylindrical |
A transformation between geographic and projected coordinate systems developed for the area of Switzerland. |
EPSG preferred name |
True |
False |
Die projecktionen der Schweizerischen Plan und Kartenwerke; J Bollinger; 1967 |
EPSG |
POSC |
epicentre 2.2 |
current |
Tunisia Mining Grid |
A transformation between geographic and projected coordinate systems developed for Tunisia. |
EPSG preferred name |
True |
False |
EPSG Guidance note #7; Geographic and Projected Coordinate System Transformations; section 1.4.8 |
EPSG |
POSC |
epicentre 2.2.2 |
current |
Oblique Mercator |
A transformation between geographic and projected coordinate systems. This method subsumes the Laborde Oblique Mercator and the Swiss Oblique Cylindrical methods for an appropriate formulation. |
EPSG preferred name |
True |
False |
EPSG Guidance note #7; Geographic and Projected Coordinate System Transformations; section 1.4.5 |
EPSG |
POSC |
epicentre 2.2.1 |
current |
identifier |
description |
naming _system |
reverse _transform _valid |
sign _reversal |
source _reference |
source _content |
source |
version |
status |
American Polyconic |
A transformation between geographic and projected coordinate systems |
EPSG preferred name |
True |
False |
US Geological Survey Professional Paper 1395; Map Projections - A Working Manual; J. Snyder |
EPSG |
POSC |
epicentre 3.0 |
current |
Krovak Oblique Conic Conformal |
A conic conformal transformation in which the axis of the cone is not coincident with the polar axis (the semi-minor axis of the ellipsoid). This transformation is used in the Czech Republic and Slovakia. |
EPSG preferred name |
True |
False |
Research Institute for Geodesy Topography and Cartography (VUGTK); Prague. |
EPSG |
POSC |
epicentre 3.0 |
current |
NADCON |
North American Datum Conversion. A grid that is produced by the DMA. Implementation is by software that performs a grid interpolation. |
EPSG preferred name |
False |
False |
US Coast and geodetic Survey - http://www.ngs.noaa.gov |
EPSG |
POSC |
epicentre 2.1 |
current |
Longitude rotation |
A transformation on a 2d or 3d geographic coordinate system, which changes the longitude values by rotation value, and leaves the latitude and/or elevation unchanged. Lon2 = Lon1 + longitude_rotation. |
EPSG preferred name |
True |
True |
|
EPSG |
POSC |
epicentre 3.0 |
current |
Geographical and Height Offsets |
This transformation allows calculation of coordinates in the target system by adding the parameter value to the coordinate values of the point in the source system. The parameter value is added to the value in the source system to give the value in the target system. Lat2 = Lat1 + latitude_offset; Lon2 = Lon1 + longitude_offset; EllipsoidHeight2 = GravityHeight1 + gravity-related to ellipsoid height. |
EPSG preferred name |
True |
True |
|
EPSG |
POSC |
epicentre 3.0 |
current |
Geographical Offsets |
This transformation allows calculation of coordinates in the target system by adding the parameter value to the coordinate values of the point in the source system. The parameter value is added to the value in the source system to give the value in the target system. Lat2 = Lat1 + latitude_offset; Lon2 = Lon1 + longitude_offset. |
EPSG preferred name |
True |
True |
|
EPSG |
POSC |
epicentre 3.0 |
current |
Geographic/geocentric conversions |
A point in a geodetic (lat, long, elevation) coordinate system is converted to a geocentric (x, y, z), or the reverse. |
EPSG preferred name |
False |
False |
|
EPSG |
POSC |
epicentre 3.0 |
current |
Geocentric translations |
A transformation on a 3d geocentric coordinate system that translates the x, y, z values by parameter values. |
EPSG preferred name |
True |
True |
|
EPSG |
POSC |
epicentre 3.0 |
current |
Molodenski |
A transformation between Geographic Coordinate Systems |
EPSG preferred name |
True |
True |
|
EPSG |
POSC |
epicentre 2.2 |
current |
Abridged Molodenski |
A transformation between Geographic Coordinate Systems |
EPSG preferred name |
True |
True |
|
EPSG |
POSC |
epicentre 3.0 |
current |
Position Vector 7-param. transformation |
A 3-dimensional affine transformation between geocentric coordinate systems. The rotations view the difference between the point in the new coordinate system vs. the same point in the old system. See also coordinate frame rotation. |
EPSG preferred name |
True |
True |
|
EPSG |
POSC |
epicentre 3.0 |
current |
NTv1 |
Geodetic transformation operating on geographic coordinate differences by bi-linear interpolation. Used specifically for some NAD27 -- NAD83 transformations in Canada. |
EPSG preferred name |
False |
False |
Geomatics Canada - Geodetic Survey Division. |
EPSG |
POSC |
epicentre 3.0 |
current |
NTv2 |
Geodetic transformation operating on geographic coordinate differences by bi-linear interpolation. |
EPSG preferred name |
False |
False |
http://www.geod.nrcan.gc.ca/products/html-public/GSDapps/English/NTv2_Fact_Sheet.html |
EPSG |
POSC |
epicentre 3.0 |
current |
Norway Offshore Interpolation |
Geodetic transformation specifically for offshore Norway. |
EPSG preferred name |
False |
False |
Norwegian Mapping Authority note of 13-Feb-1991 Om Transformasjon mellom Geodetiske Datum i Norge. |
EPSG |
POSC |
epicentre 3.0 |
current |
Madrid to ED50 |
The original geographic coordinate system for the Spanish mainland was based on Madrid 1870 datum, Struve 1860 ellipsoid, with longitudes related to the Madrid meridian. Three polynomial expressions have been empirically derived by to convert geographical coordinates based on this system to equivalent values based on the European Datum of 1950 (ED50). The polynomial coefficients derived can be used to convert from Madrid 1870 to ED50. Three pairs of expressions have been derived: each pair is used to calculate the shift in latitude and longitude respectively for (i) a mean for all Spain, (ii) a better fit for the north of Spain, (iii) a better fit for the south of Spain. The polynomial expressions transformations are: dLat seconds = A1 + (along*lon) + (alat*lat) + (ah*h); dLon seconds = (b0+b1) + (blong*lon) + (blat*lat) + (bh*h) where latitude lat and longitude lon are in decimal degrees referred to the Madrid 1870 (Madrid) geographic coordinate system and h in metres. b0 is the longitude (in seconds) of the Madrid meridian measured from the Greenwich meridian; it is the value to be applied to a longitude relative to the Madrid meridian to transform it to a longitude relative to the Greenwich meridan. The results of these expressions are applied through the formulas: Lat(ED50) = Lat(M1870(M)) + dLat; and Lon(ED50) = Lon(M1870(M)) + dLon. |
EPSG preferred name |
False |
False |
El Servicio Geografico del Ejercito |
EPSG |
POSC |
epicentre 3.0 |
current |
Coordinate Frame rotation |
A 3-dimensional affine transformation between geocentric coordinate systems. The rotations view the axes in the new coordinate system with respect to the old coordinate system. See also position vector transformation. |
EPSG preferred name |
True |
True |
|
EPSG |
POSC |
epicentre 3.0 |
current |
Vertical Offset |
This transformation allows calculation of ordinate in the target system by adding the parameter value to the ordinate value of the point in the source system. V2 = [(V1 * U1) + (O12 * Uoff)] * (m / U2) where V2 = value in second vertical coordinate system; V1 = value in first system; O12 is the value of the origin of system 2 in system 1; m is unit direction multiplier (m=1 if both systems are height or both are depth; m=-1 if one system is height and the other system is depth; the value of m is implied through the vertical coordinate system type attribute); U1 U2 and Uoff are unit conversion ratios to metres for systems 1 2 and the offset value respectively. |
EPSG preferred name |
True |
True |
|
EPSG |
POSC |
epicentre 2.2.1 |
current |
2-dimensional affine transformation |
A 2-dimensional affine transformation between rectangular coordinate systems. P2 = A + B P1. A is a two dimensional vector, and B is a 2 by 2 matrix. |
POSC basic |
False |
False |
|
POSC |
POSC |
epicentre 3.0 |
current |
Similarity transformation |
A 2-dimensional affine transformation for which B has only two independent values. Namely, a12 = -a21, and a11 = a22, and for which all unit vectors are transformed into unit vectors.. |
POSC basic |
False |
False |
|
POSC |
POSC |
epicentre 3.0 |
current |
Affine orthogonal geometric transformation |
A 2-dimensional affine transformation for which B has only two independent values. Namely, a12 = -a21, and a11 = a22. Unit vectors are scaled by a factor of k. |
POSC basic |
False |
False |
|
POSC |
POSC |
epicentre 3.0 |
current |
identifier |
description |
naming _system |
reverse _transform _valid |
sign _reversal |
source _reference |
source _content |
source |
version |
status |
Affine general geometric transformation |
A 2-dimensional affine transformation for which may rotate the two axes by different angles, and which may scale the axes by a given factor. |
POSC basic |
False |
False |
|
POSC |
POSC |
epicentre 3.0 |
current |
Affine general parametric transformation |
A 2-dimensional affine transformation for which for which the actual matrix coefficients are given. Xnew = A0 + A1 Xold + A2 Yold; Ynew = B0 + B1 Xold + B2 Yold. |
POSC basic |
False |
False |
|
POSC |
POSC |
epicentre 3.0 |
current |
high order fit |
Standard software that uses a high order fit to convert between datums. |
POSC basic |
False |
False |
|
POSC |
POSC |
epicentre 2.1 |
current |
3D affine |
A general affine transformation between 3-dimensional coordinate systems. P2 = A + B P1 |
POSC basic |
True |
False |
|
POSC |
POSC |
epicentre 2.1 |
current |
2D linear |
A linear transformation from one 2-dimensional coordinate system to another. P2 = B P1 |
POSC basic |
True |
False |
|
POSC |
POSC |
epicentre 2.1 |
current |
3D linear |
A linear transformation from one 3-dimensional coordinate system to another. P2 = B P1 |
EPSG preferred name |
True |
False |
|
POSC |
POSC |
epicentre 2.1 |
current |
2D orthogonal |
An orthogonal transformation from one 2-dimensional coordinate system to another. P2 = B P1 where B B(transpose) is an identity matrix. |
POSC basic |
True |
False |
|
POSC |
POSC |
epicentre 2.1 |
current |
3D orthogonal |
An orthogonal transformation from one 3-dimensional coordinate system to another.. P2 = B P1 where B B(transpose) is an identity matrix. |
POSC basic |
True |
False |
|
POSC |
POSC |
epicentre 2.1 |
current |
identity13 |
An identity-type transformation from a 1-dimensional coordinate system to a 3-dimensional coordinate system. |
POSC basic |
False |
False |
|
POSC |
POSC |
epicentre 2.1 |
current |
identity23 |
An identity-type transformation from a 2-dimensional coordinate system to a 3-dimensional coordinate system. |
POSC basic |
False |
False |
|
POSC |
POSC |
epicentre 2.1 |
current |
identity31 |
An identity-type transformation from a 3-dimensional coordinate system to a 1-dimensional coordinate system. (A projection) |
POSC basic |
False |
False |
|
POSC |
POSC |
epicentre 2.1 |
current |
identity32 |
An identity-type transformation from a 3-dimensional coordinate system to a 2-dimensional coordinate system. (A projection) |
POSC basic |
False |
False |
|
POSC |
POSC |
epicentre 2.1 |
current |
1D affine |
ax + b. b represents the shift, and a represents the expansion. negative a means a reversal of direction. This is a two way transformation, where the inverse is defined by b --> -b/a, and a --> 1./a. |
POSC basic |
True |
False |
|
POSC |
POSC |
epicentre 2.1 |
current |
Reversible polynomial (2nd-order) |
Definition of 2nd order polynomial function mapping from R2 -> R2, which may be defined by 12 parameters. The method is defined so that the polynomial is reversible, but requires preconditioning of the coordinate values. |
EPSG preferred name |
True |
True |
|
EPSG |
POSC |
epicentre 3.0 |
current |
General polynomial (2nd-order) |
Definition of 2nd order polynomial function mapping from R2 -> R2, which may be defined by 12 parameters. |
EPSG preferred name |
False |
False |
|
EPSG |
POSC |
epicentre 3.0 |
current |
Reversible polynomial (3rd-order) |
Definition of 3rd order polynomial function mapping from R2 -> R2, which may be defined by 20 parameters. The method is defined so that the polynomial is reversible, but requires preconditioning of the coordinate values. |
EPSG preferred name |
True |
True |
|
EPSG |
POSC |
epicentre 3.0 |
current |
Complex polynomial (3rd-order) |
Definition of 3rd order polynomial function mapping from C1 -> C1, which may be defined by 6 parameters. The transformation is expressed in terms of complex numbers. |
EPSG preferred name |
False |
False |
|
EPSG |
POSC |
epicentre 3.0 |
current |
General polynomial (3rd-order) |
Definition of 3rd order polynomial function mapping from R2 -> R2, which may be defined by 24 parameters. |
EPSG preferred name |
False |
False |
|
EPSG |
POSC |
epicentre 3.0 |
current |
Reversible polynomial (4th-order) |
Definition of 4th order polynomial function mapping from R2 -> R2, which may be defined by 30 parameters. The method is defined so that the polynomial is reversible, but requires preconditioning of the coordinate values. |
EPSG preferred name |
True |
True |
|
EPSG |
POSC |
epicentre 3.0 |
current |
Complex polynomial (4th-order) |
Definition of 4th order polynomial function mapping from C1 -> C1, which may be defined by 8 parameters. The transformation is expressed in terms of complex numbers. |
EPSG preferred name |
False |
False |
|
EPSG |
POSC |
epicentre 3.0 |
current |
identifier |
description |
naming _system |
reverse _transform _valid |
sign _reversal |
source _reference |
source _content |
source |
version |
status |
General polynomial (4th-order) |
Definition of 4th order polynomial function mapping from R2 -> R2, which may be defined by 34 parameters. |
EPSG preferred name |
False |
False |
|
EPSG |
POSC |
epicentre 3.0 |
current |
polar |
A transformation between a rectangular and a polar coordinate system. It is explicitly a mapping from R2 to R2. There are no parameters. |
POSC basic |
True |
True |
|
POSC |
POSC |
epicentre 2.2.2 |
current |
cylindrical |
A transformation between a rectangular and a cylindrical coordinate system. It is explicitly a mapping from R3 to R3. There are no parameters. |
POSC basic |
True |
True |
|
POSC |
POSC |
epicentre 2.2.2 |
current |
spherical |
A transformation between a rectangular and a cylindrical coordinate system. It is explicitly a mapping from R3 to R3. There are no parameters. |
POSC basic |
True |
True |
|
POSC |
POSC |
epicentre 2.2.2 |
current |
Lambert Conic Conformal (Helmert) |
Deprecated. Changed to Lambert Conic Conformal (2SP Belgium). |
EPSG preferred name |
True |
False |
|
EPSG |
POSC |
epicentre 2.2 |
deprecated |
Mercator |
Deprecated. Use Mercator (1SP) or Mercator (2SP). |
EPSG preferred name |
True |
False |
|
EPSG |
POSC |
epicentre 2.2 |
deprecated |
Swiss Oblique Mercator |
Deprecated. Use Swiss Oblique Cylindrical. |
EPSG preferred name |
True |
False |
|
EPSG |
POSC |
epicentre 2.2 |
deprecated |
longitude rotation |
Deprecated. Use Longitude rotation. The only difference is the uppercase L. |
EPSG preferred name |
True |
True |
|
EPSG |
POSC |
epicentre 3.0 |
deprecated |
geodetic/geocentric conversion |
Deprecated. Use Geodetic/geocentric conversions. The difference is in the upper case and spelling. |
EPSG preferred name |
False |
False |
|
EPSG |
POSC |
epicentre 3.0 |
deprecated |
geocentric translation |
Deprecated. Use Geocentric translations. The difference is in the upper case and spelling. |
EPSG preferred name |
True |
True |
|
EPSG |
POSC |
epicentre 3.0 |
deprecated |
Molodensky |
Deprecated. A change in the spelling. |
EPSG preferred name |
True |
True |
|
EPSG |
POSC |
epicentre 2.2 |
deprecated |
abridged Molodenski |
Deprecated. Use Abridged Molodenski. The difference is the upper case A. |
EPSG preferred name |
True |
True |
|
EPSG |
POSC |
epicentre 3.0 |
deprecated |
position vector transformation |
Deprecated. Use Position Vector 7-param. transformation. |
EPSG preferred name |
True |
True |
|
EPSG |
POSC |
epicentre 3.0 |
deprecated |
Bursa-Wolf |
Deprecated. Renamed to position vector transformation. |
EPSG preferred name |
True |
True |
|
EPSG |
POSC |
epicentre 2.2 |
deprecated |
coordinate frame rotation |
Deprecated. Use Coordinate Frame rotation. |
EPSG preferred name |
True |
True |
|
EPSG |
POSC |
epicentre 3.0 |
deprecated |
2D affine |
Deprecated. Use 2-dimensional affine transformation. |
EPSG preferred name |
False |
False |
|
EPSG |
POSC |
epicentre 3.0 |
deprecated |