Re: redraw is too slow

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Article #108

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#108

From: Mark Linton
Date: Fri, 24 Jul 1992 20:24

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In article <1992Jul24.105423.23497@Informatik.TU-Muenchen.DE>, wunsch@Informatik.TU-Muenchen.DE (Patrick Wunsch) writes:
|> we have an aplication that draws 80000 points and 60000 faces, which is obviously
|> very slow.
|> 
|> The Problem is that every time we click on the pulldown menu, the glyph gets
|> a 'damage' and starts redrawing itself (->15 sec wait), then when we let go
|> of the mouse button, i.e. choose an entry, it redraws again. :-<<<
|> The same happens for every dialog box which is opened.
|> 
|> Then we tried to put the pulldown menu at the bottom of the window, so that
|> it won't damage the glyph. But that didn't help either.

Sounds like you do not have a damage check around your area with points/faces.
The draw traversal relies on the objects to short-circuit full redraws.  Perhaps
putting a patch around the point area would solve the problem, but I would need
to know more about your instance structure to speculate further.

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From: linton@marktwain.rad.sgi.com (Mark Linton)
Newsgroups: comp.windows.interviews
Subject: Re: redraw is too slow
Keywords: redraw
Message-ID: <nn5m7eo@fido.asd.sgi.com>
Date: 24 Jul 92 20:24:45 GMT
References: <1992Jul24.105423.23497@Informatik.TU-Muenchen.DE>
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