Just to make all aware:
THIS VERY POWERFULL EDITOR CAN ALSO BE USED WITH X3 AND IT WORKS (AT LEAST THE FUNCTION "CREATE RANDOM GALAXY", which is the one I used)!!
I created a random map using the XeHonk's X2 Galaxy Editor and exported the file (.xml and .lang) into the map folders and started a custom game in X3. no problem at all. of course systems are sometime weird, stations are mixed randomly so are owners and races. sometime no planet is there. I checked and it depends by the fact that 2 very near planet were created and probably at starting a game the engine avoids crash by deleting conflicting objects. same happen with overlapped stations I could see in the editor but were not existant in the game.
The other good thing is that it is a very powerfull editor: you can even change description, sectors name from the editor self, all is exported into a .lang file).
I don't know if the author is still here
A universe randomisation work in progress can be found in this thread:
http://forum.egosoft.com/viewtopic.php? ... 1740a5acb2