geogrid: Plots a grid.
In geo: Draw and Annotate Maps, Especially Charts of the North Atlantic

Description Usage Arguments Value See Also Examples

Plots a grid defined by the vectors lat, lon. The grid is plotted on a graph initialized by geoplot. lon gives the meridians plotted and lat the parallels plotted.

1 2	geogrid(lat, lon = 0, col = 1, type = "l", lwd = 0, lty = 0, pch = "+", nx = 5)

`lat,lon`	Latitude and longitude of data ( or x and y coordinates), negative for southern latitudes and western longitudes. May be supplied as two vectors or as a dataframe lat (or x) including vectors `lat$lat` and `lat$lon` (`x$x` and `x$y` if projection = none).
`col`	Color number used, default value is 1 (black).
`type`	"l" means line and "p" points. Default is "l".
`lwd`	Linewidth. Default value is the value set when the program was called.
`lty`	Linetype. Default value is the value set when the program was called.
`pch`	Type of symbol at gridpoints default is "+".
`nx`	sets smoothness of curved Lambert parallels

No values returned.

geoplot, geolines, geopolygon, geotext, geosymbols, geopar, geolocator, geocontour.

## Not run:        geogrid(latgr, longgr)

       codgrd <- list(lat = seq(62, 68, by = 0.1), lon = seq(-28, -10, 0.25))
       geogrid(codgrd)   # a fine grid of Iceland and neighbouring seas
       geoplot(new = T)

## End(Not run)