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From: pmoran@m.cs.uiuc.edu
Newsgroups: comp.graphics
Subject: Re: Raster Rotation
Message-ID: <4400073@m.cs.uiuc.edu>
Date: 23 Aug 90 19:02:00 GMT
References: <623@ntpdvp1.UUCP>
Lines: 17
Nf-ID: #R:ntpdvp1.UUCP:623:m.cs.uiuc.edu:4400073:000:711
Nf-From: m.cs.uiuc.edu!pmoran    Aug 23 14:02:00 1990


> Written  2:19 pm  Aug 22, 1990 by willr@ntpdvp1.UUCP ....
> /* ---------- "Raster Rotation" ---------- */
> Hello comp.graphics
>
>	I cannot find the article mentioned in Freq. Asked Quest. #6 referencing
>	Paeth's three shear operation rotation algorithm.  I have checked four
>	local universities and none have Graphics Interface '86.  If you could
>	post a seperate reference to the same article or the algorithm itself, 
>	I would appreciate it.

>    *******       Will Raymond - Northern Telecom NTP in RTP


Check out "A Fast Algorithm for General Raster Rotation" in the new
Graphics Gems, page 179.  Quoting from the footnote:  "This paper
revises and updates the journal article (Paeth, 1986a) ....