mosaic (version 1.9.1)

xyz2latlon: Convert back and forth between latitude/longitude and XYZ-space

Description

Convert back and forth between latitude/longitude and XYZ-space

Usage

xyz2latlon(x, y, z)
latlon2xyz(latitude, longitude)
lonlat2xyz(longitude, latitude)

Value

a matrix each row of which describes the latitudes and longitudes

a matrix each row of which contains the x, y, and z coordinates of a point on a unit sphere

Arguments

x, y, z

numeric vectors

latitude, longitude

vectors of latitude and longitude values

See Also

deg2rad(), googleMap(), and rgeo().

Examples

xyz2latlon(1, 1, 1)     # point may be on sphere of any radius
xyz2latlon(0, 0, 0)     # this produces a NaN for latitude
latlon2xyz(30, 45)
lonlat2xyz(45, 30)