On 10-12-16 12:09 AM, Jari Oksanen wrote: > On 16/12/10 04:24 AM, "Paul Murrell" <p.murr...@auckland.ac.nz> wrote: > >> Hi >> >> According to the PostScript Language Reference Manual and the PDF >> Reference, in both PDF and PostScript ... >> >> ... a line width of zero is valid, but not recommended (and is clearly >> not supported by some viewers). >> >> ... a line dash pattern cannot be specified as all zero lengths. >> (So, because R generates the line dash pattern proportional to the line >> width, a specification of lwd=0 and >> lty=anything-other-than-"solid"-or-"none" does not make sense.) >> >> I think three fixes are required: >> >> (i) Enforce a minimum line width of 0.01 (mainly because that is not >> zero, but also because that is the smallest value greater than zero when >> you round to 2dp like the PDF and PostScript devices do and it's still >> REALLY thin). >> >> (ii) If the line dash pattern ends up as all zeroes (to 2dp), because >> the line width is so small (thin), force the dash pattern to "solid" >> instead. >> >> (iii) plot.TukeyHSD() should not use lwd=0 (0.5 is plenty difference to >> be obviously "lighter" than the main plot lines) >> >> I will commit these unless there are better suggestions or bitter >> objections. >> > Paul, > > The difference between working previous (of R 2.11.1) and failing > current-still-yesterday (R 2.12.1 RC) was: > > $ diff -U2 oldtukeyplot.ps /Volumes/TIKKU/tukeyplot.ps > --- oldtukeyplot.ps 2010-12-14 12:06:07.000000000 +0200 > +++ /Volumes/TIKKU/tukeyplot.ps 2010-12-14 12:13:32.000000000 +0200 > @@ -172,5 +172,5 @@ > 0 setgray > 0.00 setlinewidth > -[ 3.00 5.00] 0 setdash > +[ 0.00 0.00] 0 setdash > np > 660.06 91.44 m > > So 0.00 setlinewidth worked, but [0.00 0.00] 0 setdash failed. Assuming > PostScript is anything like English, it is the all-zero dash that caused the > failure. > > Cheers, Jari Oksanen
Yes; I think Paul's fix #2 does this, and fixes #1 and #3 are trying to avoid problems in the future ... cheers Ben Bolker ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel