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Full_Name: baptiste augui? Version: 2.10.1 RC (2009-12-06 r50690) OS: Mac OSX 10.5 Submission from: (NULL) (90.25.215.172) The following code, run with a vanilla R session, produces different visual output for the two devices, library(grid) pdf("test-pdf.pdf") grid.newpage() grid.lines(gp=gpar(lty="13", lineend = "butt")) dev.off() png("test-png.png")

Responding to my own post, after some hacking: To fix the behavior of the following test code (the rect()s inherit the lty set by the previous abline())-- x _ (1:100)/10 plot(x,sin(x)) abline(h=0,lty=2,col="red") rect(1,0,2,0.5) abline(v=2) rect(3,0,4,0.5) Here are some diffs (now all I have to do is wade through and get lwd working properly ...) *** devX11.c.orig Tue Jul 29

I found it useful to have contour be able to do line widths ... hope that the guts haven't changed an enormous amount in the current development version ... the patches are relatively trivial, mostly going by analogy with lty and col (although in my ignorance it took me a while to figure out what UNPROTECT(2) was and why it should be changed to UNPROTECT(3) ... hope this is useful. Ben

Here are another three problems with logarithmic scales: 1) segments() does not work with logarithmic scales. I suggest to change lines 962-973 in "plot.c": for (i = 0; i < n; i++) { if (FINITE(xt(x0[i%nx0])) && FINITE(yt(y0[i%ny0])) && FINITE(xt(x1[i%nx1])) && FINITE(yt(y1[i%ny1]))) { GP->col = INTEGER(col)[i % ncol];

The R-1.2.1 builds have gone fairly smoothly on most of my UNIX architectures, but there were many warnings reported by the picky SGI compiler that could be eliminated in future releases. Generally, I have found the SGI compilers very helpful in ferreting out portability problems, unused and/or obsolete variables, unexpected datatype coercions, etc., and they compile faster than any other

--_e6765d9c-a0eb-4881-9b60-b9820e4c5665_ Content-Type: multipart/alternative; boundary="_520e6e4d-4f2c-47c0-83c1-2fa2fb28184f_" --_520e6e4d-4f2c-47c0-83c1-2fa2fb28184f_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dear Murdoch=2C Attached file is the error message after installing 2.7.1/ or it patched wi= ndow version. After