Everquest had a coordinate system. You can see an explanation of it here
Basically you could type /loc and you would see numerical coordinates in chat that corresponded to that location. If you knew the coordinates to a second location (such as if your group told you "we are at -1182.68,867.30,19.04), you could orient from where you are to where they are (assuming you are in the same zone).
Will Pantheon have this?
EQ1, EQ2, SWG, SWTOR, GW, GW2 CoH, CoV, FFXI, WoW, CO, War,TSW and a slew of free trials and beta tests