My small Tool "Sympector" can adjust building footprints along their
dominating symmetry. Watch this demo an youtube:
http://youtu.be/Nd0EqqhMeMk
in Cartography, symmetrical building footprints can be used as well
imaged landmarks, such as churches, castles, stadium.
--
http://hagenschwass.name/Sympector Sympector is a minimal editor for
adjusting building footprints along their dominating symmetries