use font in base graphics legend()?

[Jessica Chong]

Thanks for this package. I was able to get a font loaded and use the family="" argument to select my font when I use the mtext and text commands, however if I try to use the font with legend(), I get an error

> legend("topleft", fill=mycolors, legend=modelnames, border=NA, bty="n", cex=0.8, family="Myriad Pro")
Error in legend("topleft", fill = morecolors, legend = modelnames, border = NA,  : 
  unused argument (family = "Myriad Pro")

[Yixuan Qiu]

You can call par(familly = "") before drawing the legend, see https://stackoverflow.com/a/7137354.

[Jessica Chong]

Ah got it thanks. Is there any way to load the font into the PostScript font database too? It works if I draw directly to a plotting window, but if I try to use pdf(xxx) to plot to a file, I get the error font family 'Myriad Pro' not found in PostScript font database

[Yixuan Qiu]

Did you correctly load the showtext package and call showtext_auto()? showtext is the package you directly use, and sysfonts is just a backend. You can take a look at the example of showtext here.

[Jessica Chong]

Ah I see, thank you. I misunderstood and thought showtext was only if I wanted to render the text to polygons. I'm hoping to embed the fonts in the PDF and keep it as text so it can be edited in other programs.

[Yixuan Qiu]

In this case showtext is not the proper tool. You may consider using extrafont instead.