Prof Ripley, Quoting Prof Brian Ripley <[EMAIL PROTECTED]>:
> On Sat, 15 Sep 2007, Henric Nilsson (Public) wrote: > >> Hi, >> >> The added support for semi-transparent colours in `windows' under >> R-2.6.0 for Windows is much appreciated. >> >> However, I've discovered that issuing a `layout' (or `par' with >> arguments `mfcol'/`mfrow') call and then trying to plot several figures >> with semi-transparent colour on the same page results in only the first >> one being fully drawn. E.g. > > That's not the whole story, as my test examples using multiple subplots > did work. > > The problem I found is that clipping rectangles were being used in some > places where I cannot find documentation that they should be. > So explicitly setting the clipping rectangle before each alpha-blending > call seems to fix the problematic examples, including yours. Many thanks for looking into and fixing this -- I really appreciate it! Henric >> >>> x <- rnorm(10000) >>> y <- rnorm(10000) >>> >>> layout(matrix(1:2, ncol = 2)) >>> plot(y ~ x, pch = 16, col = rgb(1, 0, 0, 0.15)) >>> plot(y ~ x, pch = 16, col = rgb(1, 0, 0, 0.15)) >> >> results in the second one having only the axes and box, but no data >> points. This is under >> >>> sessionInfo() >> R version 2.6.0 alpha (2007-09-14 r42843) >> i386-pc-mingw32 >> >> locale: >> LC_COLLATE=Swedish_Sweden.1252;LC_CTYPE=Swedish_Sweden.1252;LC_MONETARY=Swedish_Sweden.1252;LC_NUMERIC=C;LC_TIME=Swedish_Sweden.1252 >> >> attached base packages: >> [1] stats graphics grDevices utils datasets methods base >> >> >> Henric >> >> ______________________________________________ >> R-devel@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-devel >> > > -- > Brian D. Ripley, [EMAIL PROTECTED] > Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ > University of Oxford, Tel: +44 1865 272861 (self) > 1 South Parks Road, +44 1865 272866 (PA) > Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel