Draw the graph, map or diagram in CAD, MS Visio or in any other software of graphic designing
Convert it into an image
Upload image to image sharing websiet and
Post image as stated in the following thread:
CSS Forums - View Single Post - How to post a pic in FORUM?
“There is no God but You (Allah Almighty), You are far exalted and above all weaknesses, and I was indeed the wrongdoer”. AL-QURAN