BUILT-IN MATHEMATICA SYMBOL

# GeoPosition

GeoPosition[{, }]
represents a geodetic position with latitude and longitude .

GeoPosition[{, , h}]
represents a geodetic position with height h relative to the reference ellipsoid.

GeoPosition[{, , h}, datum]
represents a geodetic position referring to the specified datum.

## DetailsDetails

• GeoPosition[pos, datum] converts from any type of geographic position. The following coordinate types can be given: GeoPosition, GeoPositionXYZ, GeoPositionENU, GeoGridPosition.
• GeoPosition[GeoPosition[...], datum] converts between datums.
• Standard datums can be specified by name.
• Typical named datums include:
•  "ITRF00" international Terrestrial Reference Frame 2000 "NAD27" North American Datum of 1927 "NAD83CORS96" North American Datum of 1983 (CORS96)
• The complete list of named datums and reference ellipsoids is given by .
• GeoPosition coordinates are assumed to have a time coordinate equal to the reference epoch date of the datum.
• GeoPosition[{, , h, t}] includes a time, given as a date t in decimal years.

## ExamplesExamplesopen allclose all

### Basic Examples (2)Basic Examples (2)

Geodetic position in the default reference frame:

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A position that explicitly refers to the ITRF00 reference frame:

 Out[1]=

Convert this position to NAD 83 (CORS96) coordinates:

 Out[2]=

Convert to Cartesian geocentric coordinates:

 Out[3]=

Convert back to geodetic coordinates:

 Out[4]=

Convert back to ITRF00:

 Out[5]=