Hi First off, thanks to all the various R developers, your package is very impressive.
I'm not sure what the protocols are for contributing, and I've not done this before, so please excuse nay obvious errors or oversights... Also I'm by no means an R,TeX/LaTeX, or typesetting expert, I have largely stumbled my way to this point. Objective: I'd like to get R postscript(...) to generate output that has the TeX italic font when I use italic(...) in an R graphic. I found out that the R postscript(..font="ComputerModern") outputs slanted text when the R function italic(..) is used in a graphic. I think the text should use the italic font. For a quick overview of italic vs. slant vs. oblique see http://www.eyewire.com/magazine/columns/robin/italic/ A response from Brian Ripley pointed me to the src/main/devPS.c file, and I traced this behaviour to the use of the slanted/oblique afm font files, rather than the italic afm font files. Anyway, I did some homework and realised that making the change may not be too difficult, except for needing the Computer Modern afm font files - not included in MikTeX (on my machine at least). Fortunately the Latin Modern fonts do include the afm files and are supposed to be an improvement over Computer Modern, so I thought to make both changes; update/replace Computer Modern with Latin Modern, and change the font used when italic text is output. I read on one OpenSource project that they prefer patches generated from "diff -u4". I couldn't see explicit instructions on the R web site so I've attached a "diff -u4" file. Adopting this patch would require adding the following Latin Modern afm font files to the R afm fonts folder: lmr10.afm lmbx10.afm lmri10.afm lmbxi10.afm These fonts are available in the Latin Modern Fonts package. To find out about Latin Modern see http://www.tex.ac.uk/cgi-bin/texfaq2html?label=uselmfonts Note, I had to leave the CM_symbol_10 file since I'm not sure that there is a Latin Modern replacement? Unfortunately I wasn't able to build R using Cygwin (configure works OK but make fails), so I have not been able to test the changes. I'll keep looking into getting R to build, but in the mean time I thought someone may be interested in the changes? I think the change I made means that font="ComputerModern" still works but outputs Latin Modern fonts and this is misleading, so perhaps drop "ComputerModern" in favour of "LatinModern" and/or obtain Computer Modern italic afm font files and update CM_italic_10.afm and CM_boldx_italic_10.afm. I'm not a font pro but it seems that converting between different font files is not so straight forward, but the Computer Modern italic afm files may be available to someone? HTH Mark Mark Van De Vyver B.Bus(Hons), PhD(Dist) Lecturer Finance Discipline School of Business Faculty of Economics and Business Economics & Business Building H69 The University of Sydney Sydney NSW 2006 Australia Telephone: +61 2 9351-6452 Fax: +61 2 9351-6461 Mobile: 0428 281407 mailto:[EMAIL PROTECTED] http:\\www.econ.usyd.edu.au ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-devel
