The vertices of an icosahedral grid object

Shorthand function to return the vertices slot of an icosahedral grid or a grid linked to a facelayer.

Usage

vertices(x, ...)

# S4 method for trigrid
vertices(x, output = "polar")

# S4 method for facelayer
vertices(x, output = "polar")

Arguments

x

(trigrid, hexagrid or facelayer) The icosahedral grid, or linked data object.

...

Additional arguments passed to class-specific methods.

output

(character) The coordinate system of output.

Examples

a <- trigrid(1)
vertices(a)
#>     long       lat
#> P1   -90  90.00000
#> P2  -162  26.56505
#> P3   -90  26.56505
#> P4   -18  26.56505
#> P5    54  26.56505
#> P6   126  26.56505
#> P7   162 -26.56505
#> P8  -126 -26.56505
#> P9   -54 -26.56505
#> P10   18 -26.56505
#> P11   90 -26.56505
#> P12   90 -90.00000