I am a little confused about the 179 rule for polygons. So is the polygon provided in the example a valid polygon? Does the rule of 179 state that the absolute value of two longitudes can not exceed 179?
Coordinate Reference Systems for off-world places
Please see my comemnt at Talk:gml#Coordinate Reference Systems for off-world places. Andy Mabbett (User:Pigsonthewing); Andy's talk; Andy's edits 13:44, 18 May 2011 (UTC)