Hi Arjen: The x and y window limits for the 7th subpage (lower left) of each page of example 25 are -20 to +20. i.e.,
xextreme[6][0] = -20.0; xextreme[6][1] = 20.0; yextreme[6][0] = -20.0; yextreme[6][1] = 20.0; For that case and for the diamond and reverse diamond cases (page 1 and 2) you are sampling the middle of a polygon which has a much larger range than the window limits. Thus, for this case the window limits samples the filled center of the diamond (and reverse diamond) and shouldn't you expect red completely filling the window as a result? If you agree with that supposition, then there must be a plfill bug in the PLplot core since the 7th subpage is empty (rather than a block of red). See http://plplot.sourceforge.net/examples.php?demo=25 that was produced by pngcairo for an example of this bad result, but I get this same bad result regardless of what device driver I try. Note, I noticed this bug because I have adapted example 25 (see next post) to run a second set of four pages where plgradient (implemented with a software fallback using plshades) replaces plfill. For that case, the 7th subpage is filled with plshades results which is why I began to wonder why plfill left it empty. 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 __________________________ ------------------------------------------------------------------------------ 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
