| identifier |
description |
ref _coordinate _transformation |
source |
version |
status |
| |
|
ref _coordinate _transformation .kind |
ref _source .name |
ref _epicentre _version .name |
|
| 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. |
map projection |
POSC |
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. |
map projection |
POSC |
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. |
map projection |
POSC |
2.1 |
current |
| Lambert Conic Conformal (Helmert) |
Deprecated. Changed to Lambert Conic Conformal (2SP Belgium). |
map projection |
POSC |
2.2 |
deprecated |
| 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. |
map projection |
POSC |
2.2 |
current |
| Mercator |
Deprecated. Use Mercator (1SP) or Mercator (2SP). |
map projection |
POSC |
2.2 |
deprecated |
| 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. |
map projection |
POSC |
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. |
map projection |
POSC |
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. |
map projection |
POSC |
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. |
map projection |
POSC |
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. |
map projection |
POSC |
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. |
map projection |
POSC |
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. |
map projection |
POSC |
2.1 |
current |
| New Zealand Map Grid |
A transformation between geographic and projected coordinate systems developed for the New Zealand area. |
map projection |
POSC |
2.1 |
current |
| Cassini-Soldner |
A transformation between geographic and projected coordinate systems, which is neither conformal nor equal area. |
map projection |
POSC |
2.1 |
current |
| Swiss Oblique Mercator |
Deprecated. Use Swiss Oblique Cylindrical. |
map projection |
POSC |
2.2 |
deprecated |
| Swiss Oblique Cylindrical |
A transformation between geographic and projected coordinate systems developed for the area of Switzerland. |
map projection |
POSC |
2.2 |
current |
| Tunisia Mining Grid |
A transformation between geographic and projected coordinate systems developed for Tunisia. |
map projection |
POSC |
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. |
map projection |
POSC |
2.2.1 |
current |
| identifier |
description |
ref _coordinate _transformation |
source |
version |
status |
| NADCON |
North American Datum Conversion. A grid that is produced by the DMA. Implementation is by software that performs a grid interpolation. |
software |
POSC |
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. |
affine |
POSC |
2.2 |
current |
| geocentric translation |
A transformation on a 3d geocentric coordinate system that translates the x, y, z values by parameter values. |
affine |
POSC |
2.2 |
current |
| Molodensky |
Deprecated. A change in the spelling. |
affine |
POSC |
2.2 |
deprecated |
| Molodenski |
A transformation between Geographic Coordinate Systems |
affine |
POSC |
2.2 |
current |
| abridged Molodenski |
A transformation between Geographic Coordinate Systems |
affine |
POSC |
2.2 |
current |
| position vector 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. |
affine |
POSC |
2.2 |
current |
| Bursa-Wolf |
Deprecated. Renamed to position vector transformation. |
affine |
POSC |
2.2 |
deprecated |
| 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. |
affine |
POSC |
2.1 |
current |
| vertical offset |
A shift applied to a vertical axis to transform to a coordinate system based on a different offset. |
affine |
POSC |
2.2.1 |
current |
| 2D affine |
A 2-dimensional affine transformation between rectangular coordinate systems |
affine |
POSC |
2.1 |
current |
| high order fit |
Standard software that uses a high order fit to convert between datums. |
software |
POSC |
2.1 |
current |
| 3D affine |
A general affine transformation between 3-dimensional coordinate systems. |
affine |
POSC |
2.1 |
current |
| 2D linear |
A linear transformation from one 2-dimensional coordinate system to another. |
linear |
POSC |
2.1 |
current |
| 3D linear |
A linear transformation from one 3-dimensional coordinate system to another. |
linear |
POSC |
2.1 |
current |
| 2D orthogonal |
An orthogonal transformation from one 2-dimensional coordinate system to another. |
orthogonal |
POSC |
2.1 |
current |
| 3D orthogonal |
An orthogonal transformation from one 3-dimensional coordinate system to another. |
orthogonal |
POSC |
2.1 |
current |
| identity13 |
An identity-type transformation from a 1-dimensional coordinate system to a 3-dimensional coordinate system. |
identity |
POSC |
2.1 |
current |
| identity23 |
An identity-type transformation from a 2-dimensional coordinate system to a 3-dimensional coordinate system. |
identity |
POSC |
2.1 |
current |
| identity31 |
An identity-type transformation from a 3-dimensional coordinate system to a 1-dimensional coordinate system. |
identity |
POSC |
2.1 |
current |
| identifier |
description |
ref _coordinate _transformation |
source |
version |
status |
| identity32 |
An identity-type transformation from a 3-dimensional coordinate system to a 2-dimensional coordinate system. |
identity |
POSC |
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. |
affine |
POSC |
2.1 |
current |
| 2nd-order polynomial function |
Definition of 2nd order polynomial function mapping from R2 -> R2, which may be defined by 12 parameters. |
polynomial |
POSC |
2.2 |
current |
| 3rd-order polynomial function |
Definition of 3rd order polynomial function mapping from R2 -> R2, which may be defined by 24 parameters. |
polynomial |
POSC |
2.2 |
current |
| 4th-order polynomial function |
Definition of 4th order polynomial function mapping from R2 -> R2, which may be defined by 34 parameters. |
polynomial |
POSC |
2.2 |
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. |
mathematical |
POSC |
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. |
mathematical |
POSC |
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. |
mathematical |
POSC |
2.2.2 |
current |
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