Longitude latitude (and z) to Cartesian XYZ

Longitude latitude (and z) to Cartesian XYZ

ll2cart(llh, rad = 6378137, exag = 1)

Arguments

llh	matrix of longitude, latitude, and optionally z (height above surface)
rad	radius of sphere, assumed Earthish
exag	exaggeration factor for height values

Value

matrix of XYZ coordinates (3 columns)

Examples

ll2cart(cbind(c(-180, 0, 90, 180), c(-90, -42, 0, 45, 90)))
#> Warning: number of rows of result is not a multiple of vector length (arg 1)
#>                  x             y        z
#> [1,] -3.905483e-10 -4.782837e-26 -6378137
#> [2,]  4.739880e+06  0.000000e+00 -4267807
#> [3,]  3.905483e-10  6.378137e+06        0
#> [4,] -4.510024e+06  5.523186e-10  4510024
#> [5,] -3.905483e-10 -4.782837e-26  6378137