Dear List, I'm wondering whether it is possible to use R to make spherical plots. I have 3d data: azimuth, elevation and a certain variable Y. I want to plot Y in terms of azimuth and elevation such that it seems to be a contour plot overlaid on a sphere (but projected on a plane, of course). If my explanation is not clear, you can find an example of what I'm after here: http://www.mediafire.com/?in0fmnikzmg (created using matlab). Regards, Dieter Vanderelst -- Dieter Vanderelst PhD Student Active Perception Lab University of Antwerp Koningstraat 8 B-2000 Antwerp Belgium