Looking through other appeals, I noticed that one of the cases made against a possible user of xray was maps of the player's tunnels they dug and that they were straight to ores. I used the side of the map (nerd.nu/maps/pve) to look for ores and dig straight to them. If this is breaking the rules, I really had no idea. However, I would be surprised if it is against the rules while this cross-section of the map was not hidden or, say, showed more of the cross-section than was reachable.