While testing the qtwidget and other PLplot qt output devices I ran in to two issues. This is on Ubuntu 9.04 64bit, with the system Qt version (4.5.0).
The first issue is similar in feel to an long-lived, ongoing Cairo problem - calling plinit and selecting a qt device after a call to plend causes a segmentation fault. Simply calling "plinit(); plend(); plinit();" (selecting a qt device each time) is enough to trigger the bug here. I don't know if this happens for every qt device, but it happens consistently for me with the qtwidget device. Similar to the Cairo bug, calling plend1 rather than plend avoids this bug. Unlike the Cairo bug, no text rendering is required to trigger the qt segmentation fault. The second issue relates to using plend1. For example: plsdev "qtwidget"; plinit (); plenv 0. 1. 0. 1. 1 0; plend1 (); plsdev "qtwidget"; plinit (); plenv 0. 1. 0. 1. 1 0; plend1 (); The first call to plend1 will not display a plot, just the plot window with (on my system) a grey hatched background. The second plend1 call will show the plot. I don't use the qt driver except for occasional testing, so I'm not sure if these are PLplot bugs or bugs in some other library (for example, Qt 4.5.0 vs a later release). Hez -- Hezekiah M. Carty Graduate Research Assistant University of Maryland Department of Atmospheric and Oceanic Science ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
