orthographic mapping projection algorithm

I need and orthographic projection algorithm done ASAP. What this means is I need X,Y on a map based on lattitude and longitude input from the user and or programmer. Does not need to be an executable just need the algorithm. Preferaably in Delphi but we can convert if you already have it written in another language. ## Deliverables 1) Complete and fully-functional working algorithm 2) Complete ownership and distribution copyrights to all work purchased. 3) Product must be tested for compliance with our standards ## Platform all windows platforms ## Deadline information Algorithm must work with the attached image.