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From: "Rodney Thomson" <readmore@iheartmatlab.blogspot.com>
Newsgroups: comp.soft-sys.matlab
Subject: Re: Most efficient way to continously update axes data in GUI
Date: Fri, 18 Sep 2009 03:55:04 +0000 (UTC)
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Try playing around with the line's 'EraseMode' property.

By default it redraws the entire frame. Setting it to perhaps 'xor' might speed it up significantly.