this site gives examples of how
you may draw sections.
particularly one's taken from images.
take the tour:
http://www.streetsections.com/go.asp?a=worldtour&tst=&trowf=&trowt=&tsort1=&tsort1dir=&tsort2=&tsort2dir=&tsort3=&tsort3dir=
or go to the latest tour entries.
http://www.streetsections.com/go.asp?a=worldtour_gettingstarted
www.streetsections.com
