Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!samsung!uunet!mnemosyne.cs.du.edu!isis!ebergman
From: ebergman@isis.cs.du.edu (Eric Bergman-Terrell)
Newsgroups: comp.windows.ms.programmer
Subject: Re: Slow PutPixel... How to Speed Up?
Message-ID: <1991Mar21.054031.1707@isis.cs.du.edu>
Date: 21 Mar 91 05:40:31 GMT
References: <1991Mar18.083629.3449@vax5.cit.cornell.edu>
Reply-To: ebergman@isis.UUCP (Eric Bergman-Terrell)
Distribution: comp
Organization: Math/CS, University of Denver
Lines: 11


How much "coherence" does your graphic have?  In other words are there
large regions of the same color?

If so, there are several graphics techniques that you can use to speed
up drawing (& economize on disk storage too).

Take a look in the index of a good graphics text (look up run-length
encoding & quadtrees).

Terrel