Editing Xiaolin Wu's line algorithm (section)

==References==
* {{cite journal
 | author=Abrash, Michael
 | url = http://archive.gamedev.net/archive/reference/articles/article382.html
 | title = Fast Antialiasing (Column)
 | journal=[[Dr. Dobb's Journal]]
 | date=June 1992 | volume=17 | issue=6 | pages=139(7)
 }}
* {{cite journal
 | author=Wu, Xiaolin
 | url = http://portal.acm.org/citation.cfm?id=122734
 | title = An efficient antialiasing technique
 | journal=ACM SIGGRAPH Computer Graphics
 | date=July 1991 | volume=25 | issue=4 | pages=143–152
 | doi = 10.1145/127719.122734
 | isbn=0-89791-436-8
 | url-access=subscription
 }}
* {{cite book
 | author = Wu, Xiaolin
 | year = 1991
 | chapter = Fast Anti-Aliased Circle Generation
 | editor = James Arvo
 | title = Graphics Gems II
 | pages = 446–450
 | location = San Francisco
 | publisher = Morgan Kaufmann
 | isbn = 0-12-064480-0
 }}