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From: liberte@yoyodyne.ncsa.uiuc.edu
Newsgroups: comp.sys.mac.programmer
Subject: Re: Rotating bitmaps
Message-ID: <900042@yoyodyne>
Date: 5 Sep 90 18:51:00 GMT
References: <145341@<90244>
Lines: 9
Nf-ID: #R:<90244:145341:yoyodyne:900042:000:338
Nf-From: yoyodyne.ncsa.uiuc.edu!liberte    Sep  5 13:51:00 1990


Related to the question on rotating bitmaps, I need an algorithm to map
a rectangular bitmap to a parallelogram, or more generally, an arbitrary
quadralateral.  I know it is done in various drawing programs, but
how is it done?  References appreciated.

Dan LaLiberte
National Center for Supercomputing Applications
liberte@ncsa.uiuc.edu