Article View: comp.windows.interviews
Article #564floating Coord round-off
From: Donn Cave
Date: Tue, 01 Sep 1992 16:03
Date: Tue, 01 Sep 1992 16:03
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In 3.0.1, it sometimes seems that the actual size and position of elements on the screen is slightly more variable than one would expect, and I have been thinking that this is because of round-off errors between InterViews' floating point coordinate system, and X's integer screen coordinates. For example, the outset frame around a series of pushbuttons will be slightly larger below one button than the rest. It's particularly spectacular when scrolled by small increments - the window seems to undulate. This is on a 100dpi screen, using the default "Motif" kit. Is there something one can do to avoid this effect? (Assuming that it's still around in 3.1. Am certainly relieved to hear that 3.1 will have a monochrome kit, by the way.) Donn Cave, University Computing Services, University of Washington donn@cac.washington.edu
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Path: arc1-ca.pugleaf.net!sparky!uunet!ogicse!news.u.washington.edu!carson.u.washington.edu!donn From: donn@carson.u.washington.edu (Donn Cave) Newsgroups: comp.windows.interviews Subject: floating Coord round-off Message-ID: <1992Sep1.160341.13749@u.washington.edu> Date: 1 Sep 92 16:03:41 GMT Article-I.D.: u.1992Sep1.160341.13749 Sender: news@u.washington.edu (USENET News System) Organization: University of Washington Lines: 18