[Rd] Re: legend()s text color

Marc Schwartz MSchwartz at medanalytics.com
Wed Feb 25 15:46:39 MET 2004


On Wed, 2004-02-25 at 08:02, Uwe Ligges wrote:
> Martin Maechler wrote:
> 
> > {moved from R-help to R-devel}
> > 
> > 
> >>>>>>"UweL" == Uwe Ligges <ligges at statistik.uni-dortmund.de>
> >>>>>>    on Tue, 24 Feb 2004 19:05:46 +0100 writes:
> > 
> > 
> >     UweL> Sebastien Durand wrote:
> >     >> Hi,
> >     >> 
> >     >> Is there a way to change the color of the text inside a legend, let say 
> >     >> I would like to use a black background in my legend, how can I get the 
> >     >> text to show up, it is black!!!
> >     >> So for example how could I change it to white...?
> >     >> 
> >     >> Sebastien
> > 
> > 
> >     UweL> By setting par(fg = "white"):
> > 
> >     UweL> plot(1:10)
> >     UweL> par(fg="white")
> >     UweL> legend(2,2, col="white", legend="A", bg="black")
> > 
> > or  par(col = "white"),
> > as Marc has suggested.
> > 
> > legend()'s source code makes it very straightforward to add an
> > argument 'text.col' for this purpose, and I have already done so
> > in my development version.
> > The question is really if the default should be
> >    text.col = par("col")
> > or text.col = par("fg")
> > 
> > I'd currently tend for  par("col") , but the tendency is weak.
> >
> 
> I agree, I would expect the lines around the legend's box in par("fg"), 
> but the font in par("col"). And indeed, that's already the case if both 
> values have been set in par().
> 
> Uwe


Martin,

Thanks for taking this on. 

I'll throw in my vote and support the text.col = par("col") approach.

Best regards,

Marc



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