A simple rectangular projection where Longitude is the X coordinate and Latitude is the Y coordinate also has straight and perpendicular lines. And it can go all the way to 90 North. Of course, longitude is very distorted at the poles.
http://en.wikipedia.org/wiki/Equirectangular_projection > Many Thanks for the website references which take me some > way beyond what I learned for 'A' Level geography many years > ago. A very interesting browse in fact. > > Best, > > Tony M. > --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
