[Freeciv-Dev] (PR#6669) Poles on a N-S wrapping topology

["Marcelo Burda" <mburda@xxxxxxxxx>]

<URL: http://rt.freeciv.org/Ticket/Display.html?id=6669 >

Hello,
 my patch for reversed-wrap topologies are near end, i thincs in the poles 
problems.
there are 3 reversed-wrap interesting topologies to freeze at poles:

 lines = wraps
   A polar
   O ocean
   X island etc
   


Spherical topology in a square:
reversed-wrap on all sides
     /--\
    AOOOOA
  +-OXXXXO-+
  | OXAAXO |
  | OXAAXO |
  +-OXXXXO-+ 
    AOOOOA  
     \__/

Spherical topology in a rectangle:
reversed wrap top and bottom, normal wrap Left-Right

     /----\
  OOAAOOOOAAOO
  XXXXXXXXXXXX
  XXXXXXXXXXXX
  OOAAOOOOAAOO
     \____/

Electron like topology
Reversed Wrap left-right no wrap top-bottom
    OOOOOO
  +-OXXXXO-+
  | OXAAXO |
  +-OXXXXO-+ 
    OOOOOO

We can add it a this patch, (if some one accept to merge my patch to the cvs)

  Marcelo