[R-sig-Geo] Text label buffering

[Johannes Signer]

There is also the boxed.labels() function in the plotrix package.

HTH Johannes

On Thu, Jun 23, 2011 at 2:49 PM, Sarah Goslee <sarah.goslee at gmail.com> wrote:
> I would just use rect() to draw a white rectangle, then put the text
> on top of it. Trying to frame each letter just seems like too much
> work.
>
> par(bg='black')
> plot.new()
> rect(.4, .4, .6, .6, col="white")
> text(0.5, 0.5, label='text', col='black', font=1, cex=3)
>
> Sarah
>
> On Thu, Jun 23, 2011 at 2:10 PM, Matthew Vavrek
> <matthew at matthewvavrek.com> wrote:
>> Hello all,
>> I'm making up some maps in R, but some of the labels are being obscured by
>> other lines on the map. I'd like to be able to buffer my labels, so that
>> there's a bit of whitespace surrounding each letter to make them more
>> readable. I've tried doing this by doing a double call to text(), with white
>> in bold (font=2) and then a regular font, and by adjusting the text size,
>> but the text doesn't really match up between the two labels this way.
>>
>> for example:
>>
>> par(bg='black')
>> plot.new()
>> text(0.5, 0.5, label='text', col='white', font=2, cex=3)
>> text(0.5, 0.5, label='text', col='black', font=1, cex=3)
>>
>> or:
>>
>> par(bg='black')
>> plot.new()
>> text(0.5, 0.5, label='text', col='white', cex=3)
>> text(0.5, 0.5, label='text', col='black', cex=2.9)
>>
>> give the idea of what I want, but not quite as cleanly as I'd like.
>>
>> Is there some way of doing this? Seems like there should be, but searching
>> the internets hasn't turned up anything yet.
>>
>> Thanks
>> Matthew
>>
>
>
>
> --
> Sarah Goslee
> http://www.functionaldiversity.org
>
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