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GeoGridPosition

GeoGridPosition[{x, y, z}, projection]
represents a point {x, y, z} in a planimetric cartographic grid using the specified projection.
  • Projections can be specified in the following forms:
"proj"named projection with default parameter values
{"proj",Phi1,...}projection with standard parallels specified
{{"proj",...},{lat,long}}projection centered on the specified position
{proj,opts}projection with detailed options specified
  • Default values of options for a particular named projection are given by GeoProjectionData[proj].
  • GeoGridPosition[{x, y}] represents a point {x, y} in a cartographic grid, assuming a standard ellipsoid height of zero.
  • GeoGridPosition[{x, y, z, t}] includes a time, given as a date t in decimal years.
Convert a geodetic position to a grid point using a spherical gnomonic projection:
Convert back to a geodetic position:
Compute a spherical gnomonic projection using a custom setting for the central meridian:
Compute a projection using explicitly specified projection parameters:
Convert a geodetic position to a grid point using a spherical gnomonic projection:
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Convert back to a geodetic position:
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Compute a spherical gnomonic projection using a custom setting for the central meridian:
In[1]:=
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Compute a projection using explicitly specified projection parameters:
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Get latitude, longitude lists for the main boundaries of a country:
Convert geodetic coordinates to grid positions using the spherical Mercator projection:
Use the Cassini projection with central meridian -50 degrees:
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