Hi
There are some System commands that grab a computers settings to suit your purpose but I do not know what they are. May be tikz or Java or python based packages will improve things but I do not know them at all Regards Duncan From: Dalthorp, Daniel [mailto:ddalth...@usgs.gov] Sent: Friday, 29 July 2016 11:49 To: Duncan Mackay Cc: R Subject: Re: [R] font size in graphs...can R read Windows settings? The trouble is getting the figs to look right for different users who happen to have different display settings. Nearly all my users will be on MS Windows, and, for the parameter set you gave, the figs will look different, depending on which "display size" parameter value is active and the screen resolution (for Windows 7 --- Control Panel | Appearance and Personalization | Display | Make text and other items larger or smaller). For example, the following gives different look (for text(), mtext(), axis labels, etc.) "smaller" than for "larger" or for fine resolution vs. coarse resolution. Getting it wrong makes the figs look sloppy and hard to read. If I knew users' display parameters ahead of time, I could adjust the drawing algorithms using par parameters, but I don't know the display parameters. 'din' values at time of package attachment (and after closing of open devices) gives a reasonable proxy in a lot of cases but not always. par(mfrow = c(1,1), las = 1, mai = c(0.85, 0.85, 0.32, 0.12), font.main = 1, cex.main = 1.0, cex.lab = 1.0, cex.axis = 0.9) plot(0,0) plot(0,0, type='n') text(0,0, 'junk') mtext(side = 3, line = .5, "more junk") On Thu, Jul 28, 2016 at 6:15 PM, Duncan Mackay <dulca...@bigpond.com> wrote: Hi Dan This is one of the features/problems of proportional graphing – getting it exactly right. Anyway good graphs usually take time I wonder if aspect in both base and lattice may be of use. Also I have a default par settings for base graphics where I sometimes change the mai command for multiple graphs and rarely the font size. par(mfrow = c(1,1), las = 1, mai = c(0.85, 0.85, 0.32, 0.12), font.main = 1, cex.main = 1.0, cex.lab = 1.0, cex.axis = 0.9) Duncan From: Dalthorp, Daniel [mailto:ddalth...@usgs.gov] Sent: Friday, 29 July 2016 09:22 To: Duncan Mackay Cc: R Subject: Re: [R] font size in graphs...can R read Windows settings? Thanks, Duncan. This is close to what I was looking for. But I'm not using lattice. And the fontsize$text and fontsize$points are independent of display settings in Windows (screen resolution and 'size of objects'). I need to make my graphs [esp. placement and size of text(), mtext()] look good regardless of display settings. Here's what I'm working with at the moment... When package is loaded, I store the default graph size ('din') which is correlated with OS display parameters. Then, I simply multiple my current 'cex' values by the stored 'din' divided by 7 (which is the 'din' associated with the display parameters that I created the figs in initially). It seems to work just fine for my text() and mtext() text sizes. But some of my algorithms for placing text and subfigs in margins still need fixing...combinations of 'plt' and 'usr' seem to be working, but it's tedious. -Dan On Wed, Jul 27, 2016 at 8:43 PM, Duncan Mackay <dulca...@bigpond.com> wrote: Hi Dan For devices png, pdf, postscript and ? others the pointsize argument controls the font size which is modified by cex For lattice there are the settings in trellis.par.get() trellis.par.get()$fontsize $text [1] 12 $points [1] 8 which you can set and there is no real need to change font size except if you need to change main. trellis.par.get()$grid.pars are the settings for grid elements if used eg text these could be set globally by trellis.par.set() or individually with argument par.settings eg xyplot(y ~ x, data = datm, par.settings = list(strip.background = list(col = "transparent"), fontsize = list(text = 16, points = 12), # large size; need to refine superpose.polygon= list(col = c("red","blue"), border = c("red","blue"))), type = "b") Regards Duncan Duncan Mackay Department of Agronomy and Soil Science University of New England Armidale NSW 2351 Email: home: mac...@northnet.com.au -----Original Message----- From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Dalthorp, Daniel Sent: Thursday, 28 July 2016 07:02 To: r-help@R-project.org (r-help@r-project.org) Subject: [R] font size in graphs...can R read Windows settings? Hi All, I am putting together a package that (among other things) draws some nice graphs for users. I place some explanatory text on figs using "text" and "mtext". But the size of the text depends on the Windows display settings: Smaller (100%), medium (125%) or larger (150%) (In Windows 7... Control panel | Appearance and personalization | Display | Make text and other items smaller or larger). If I create figs that look good with one setting, the text is too big (or too small) if another setting is used in Windows. If I know the Windows setting, I can use cex in R to make the right sized labels, but if I don't know a user's Windows display size setting...is there a way for R to read the setting? Or is there another way to control label size so that text labels on graphs look good regardless of WIndows display size setting? Many thanks for Ideas, -Dan -- Dan Dalthorp, PhD USGS Forest and Rangeland Ecosystem Science Center Forest Sciences Lab, Rm 189 3200 SW Jefferson Way Corvallis, OR 97331 ph: 541-750-0953 ddalth...@usgs.gov [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Dan Dalthorp, PhD USGS Forest and Rangeland Ecosystem Science Center Forest Sciences Lab, Rm 189 3200 SW Jefferson Way Corvallis, OR 97331 ph: 541-750-0953 ddalth...@usgs.gov -- Dan Dalthorp, PhD USGS Forest and Rangeland Ecosystem Science Center Forest Sciences Lab, Rm 189 3200 SW Jefferson Way Corvallis, OR 97331 ph: 541-750-0953 ddalth...@usgs.gov [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
