rgl.Map: Plot a map in an rgl window
In TeachingDemos: Demonstrations for Teaching and Learning

Description Usage Arguments Details Value Note Author(s) See Also Examples

Plots a map (from a Map object from package maptools) on a unit sphere in an rgl window that can then be interactively rotated.

1	rgl.Map(Map, which, ...)

`Map`	A `Map` object
`which`	Vector indicating the subset of polygons to plot.
`...`	Additional arguments passed on to `rgl.lines`.

This assumes that the map is cordinates in degrees and plots the map on a unit sphere in an rgl window making a globe. You can then rotate the globe by clicking and dragging in the window.

There is no return value, this function is run for its side effect.

This function is still beta level software (some extra lines show up). This needs to be updated to use the new spatial objects, you can use it as an idea, but probably won't work directly.

Greg Snow 538280@gmail.com

rgl in package rgl, plot.Map in package maptools

if(interactive()){
# assumes that the time zone shape files have been downloaded
# from: http://openmap.bbn.com/data/shape/timezone/

tz <- maptools:::read.shape('WRLDTZA')
rgl.Map(tz)
rgl.spheres(0,0,0,.999, col='darkblue')
}