On 2009-03-31 03:45-0500 David Strang wrote: > Hi: > > I am using plplot 5.9.2 to learn Gnome GUI programming under > Ubuntu 8.10 Linux. I have used previous versions of PLPLOT > dating back to my AMIGA, but I need to get up to speed > with current versions of PLPLOT. > > I have a working plplot example of the plplotcanvas animation > and demo to start with. > > My initial goal was to divide the canvas using plplot_canvas_ssub , > then plotting multiple simple plots (from the demo), using plplot_canvas_adv( > i ) > to move to the next page. > > Rather than describe my failed attempts placing plplot_canvas_ssub , what is > the correct > way to mod the plplotcanvas_demo.c code to get multiple subpages? > > Is there a problem since plplot_canvas_new() calls plitit() ? > > All help is appreciated. > > Regards, > Dave Strang > > PS: My goal is to plot 6 frequency distributions in one canvas with > plplot_canvas_hist( ). > Maybe later I could build 6 canvases and do plplot_canvas_hist( ) in > each.
Hmmm. Your interest in PLplot dating back to the AMIGA predates mine. :-) Welcome back. I do confirm there is a problem with creating subpages with the gnome2 bindings. I tried plplot_canvas_ssub(canvas, 2,1) in various places in plplotcanvas_demo.c, and also plssub(2,1) just after plparseopts was called (that way of calling plssub works in example 25), but nothing worked. I either got lots of PLplot errors/warnings or no such messages, but a completely blank screen. I checked plplotcanvas.c to make sure there was nothing obviously wrong with the way that plplot_canvas_ssub was programmed, but all seemed well there, and, indeed, for one of the error-free positions in plplotcanvas_demo.c, i.e., just before the first call to plplot_canvas_adv, plplot_canvas_ssub(canvas, 1,1) does work. But anything other than '1,1' leads to a blank screen. It's possible somebody else here can help you get to the bottom of this issue, but our expertise on the gnome2 bindings is pretty thin so you may be on your own. The problem is that Thomas Duck, the developer of bindings/gnome2 and the only one really familiar with that aspect of PLplot, retired from the project several years ago due to the pressures of his research/academic career at that time. It's possible you might coax him to give you some help if you contact him directly, and he is certainly welcome back here if he wants to start developing his GNOME PLplot bindings again, but of course he might still have much more urgent priorities than PLplot. If it turns out you ultimately have to figure this out on your own, then you are certainly welcome to send the appropriate bindings/gnome2 patches. Alan __________________________ Alan W. Irwin Astronomical research affiliation with Department of Physics and Astronomy, University of Victoria (astrowww.phys.uvic.ca). Programming affiliations with the FreeEOS equation-of-state implementation for stellar interiors (freeeos.sf.net); PLplot scientific plotting software package (plplot.org); the libLASi project (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project (lbproject.sf.net). __________________________ Linux-powered Science __________________________ ------------------------------------------------------------------------------ _______________________________________________ Plplot-general mailing list Plplot-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-general
