Hello,

First of all many thanks to the author for this wonderful library.

I am trying to figure out how to implement an azimuthal orthographic projection (http://www.progonos.com/furuti/MapProj/Normal/CartHow/HowOrtho/howOrtho.html) with the lib but don't have a clue on how to do it.

I admit I have a great lack of knowledges about GIS...

Could someone just kick start me on this ?