On 2016-01-18 16:57-0000 Phil Rosenberg wrote: > Hi > Can we reopen this again please. I have just hit another case where > when plotting a contour plot something goes wrong and the whole plot > gets filled. > > Alan, you said you were going to see if you could work out why the > fuzzy logic was needed and I said I would try to generate a test case. > I know I haven't held up my side of the bargain, but I will try to > sort one asap.
Hi Phil: The status here is I guessed at the cause of the issue you originally reported and got pretty far with a fix for that on a private topic branch but did not finish that off because some higher priorities intervened such as the new Fortran binding. But if you have found a complicated case demonstrating an issue with the fill logic on master branch, that would be like gold because such cases are quite rare. So your absolutely first priority should be to preserve the exact complicated conditions where you found the bug. Then please send me _that exact case_ to make sure I can replicate it here. After that, we can attempt to simplify the issue down to a much more managable simple test case, fix that simple case, then go back to the complicated case to make sure that fix works for it as well. Or other possibilities exist such as fixing some fuzzy issues with the present logic (for example, how nearly parallel intersections are treated by the logic) to see if those fixes make any difference to your complex case. But essential to all of this bug-fixing process is a case (no matter how complicated) that can be replicated elsewhere. 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); the Time Ephemerides project (timeephem.sf.net); PLplot scientific plotting software package (plplot.sf.net); 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 __________________________ ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
