dbp
2013-Jul-20 16:05 UTC
[R] problem with minus signs when using postscript/pdf functions with ComputerModernItalic family
When I use the postscript with the ComputerModernItalic family, minus signs are not properly displayed, but are changed into capital gammas. The attached test-postscript.pdf file illustrates the problem, which I created starting with the following R code:> postscript("test-postscript.eps", family = "ComputerModernItalic") > plot(seq(-5,5,1),seq(-5,5,1)) > dev.off()I then created the attached .pdf file from the .eps file using the Preview application on a MacBook Pro (see below for details about my R session). I have also attempted to create the same plot using the pdf function. For some reason, pdf does not like `family = "ComputerModernItalic"', so I needed to do the following.> CMitalic <- Type1Font("ComputerModern2",+ c("CM_regular_10.afm", "CM_boldx_10.afm", + "cmti10.afm", "cmbxti10.afm", + "CM_symbol_10.afm"), + encoding = "TeXtext.enc")> pdf("test-pdf.pdf", family = CMitalic) > plot(seq(-5,5,1),seq(-5,5,1)) > dev.off()The attached test-pdf.pdf file shows the minus signs are no longer replaced by capital gammas, but are now blanked out. For the record, I noticed this problem several years ago and have been hoping that it would disappear with each new release of R. At the time that I first noted it, I asked a colleague to run an example on a Windows box, and the same problem occurred, leading me to conclude that the problem is not unique to Mac OS-X. Any help or workarounds for the problem would be greatly appreciated! Regards, - Don Percival> sessionInfo()R version 2.15.3 (2013-03-01) Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit) locale: [1] C attached base packages: [1] stats graphics grDevices utils datasets methods base loaded via a namespace (and not attached): [1] compiler_2.15.3 tools_2.15.3 -------------- next part -------------- A non-text attachment was scrubbed... Name: test-postscript.pdf Type: application/pdf Size: 8186 bytes Desc: not available URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20130720/fe6167fd/attachment.pdf> -------------- next part -------------- -------------- next part -------------- A non-text attachment was scrubbed... Name: test-pdf.pdf Type: application/pdf Size: 7803 bytes Desc: not available URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20130720/fe6167fd/attachment-0001.pdf> -------------- next part -------------- ==========================================dbp at apl.washington.edu Applied Physics Laboratory Box 355640 University of Washington Seattle, WA 98195-5640 Phones: 206-543-1368 Fax: 206-543-6785 206-543-1300 http://faculty.washington.edu/dbp ===========================================
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