While surfing the l5r wiki, I was surprised to find that despite all the detail to the various realms that exist in Rokugan, theres no existing map or grid to show all the realms together. Thanks to the wiki, I was able to learn which realms were close and far to which and was able to come up with a crude but accurate map! ^^
I'm no artist nor do I have any special program for making a neater looking map, but given all the information on the wiki all the realms are properly spaced. The only difficulty I had was in the center, since it seems Meido, Jigoku, and Ningen-do have the most in common with all the others, but are also close to one another.
This project would have also been easier if I could have made a 3D model rather than a 2D representation... ;p I will also note that some realms were never specified to be near or far from one another. One example being Maigo no Musha with all the realms expect Meido.
Realms of Rokugan Map