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MacQueen, Don

Format text with outline?

I'm using mtext() to annotate a plot. I would like, if possible, to have
the individual characters formatted with an outline or border, with a
contrasting fill color inside the borders.

I'd appreciate suggestions or pointers toward a way to do this.

The reason is because I'm creating a graphic with a transparent background
[png(filename,bg='transparent')] that is to be overlaid on Google Earth.
The background at my location of interest is so varied in color and shape
that it is difficult to find a text color that will reliably have enough
contrast to be legible. Google appears to have dealt with this by using
white text with a black border on each character,and I would like to do
the same, if possible.

I have done some searching, without success so far. Admittedly, this is
well outside the scope of what R is designed for, but, hey, R can do
everything, so why not this? I did find a possible alternative, the
textrect() function in the RPMG package.

Thanks
-Don

--
Don MacQueen

Lawrence Livermore National Laboratory
7000 East Ave., L-627
Livermore, CA 94550
925-423-1062

______________________________________________
[hidden email] mailing list
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.

baptiste auguie-5

Re: Format text with outline?

Have a look at this:

http://stackoverflow.com/questions/7734535/control-font-thickness-without-changing-font-size

and

http://stackoverflow.com/questions/10686054/outlined-text-with-ggplot2
which refers to a base graphics version.

HTH,

b.

On 20 June 2012 07:58, MacQueen, Don <[hidden email]> wrote:

> I'm using mtext() to annotate a plot. I would like, if possible, to have
> the individual characters formatted with an outline or border, with a
> contrasting fill color inside the borders.
>
> I'd appreciate suggestions or pointers toward a way to do this.
>
> The reason is because I'm creating a graphic with a transparent background
> [png(filename,bg='transparent')] that is to be overlaid on Google Earth.
> The background at my location of interest is so varied in color and shape
> that it is difficult to find a text color that will reliably have enough
> contrast to be legible. Google appears to have dealt with this by using
> white text with a black border on each character,and I would like to do
> the same, if possible.
>
> I have done some searching, without success so far. Admittedly, this is
> well outside the scope of what R is designed for, but, hey, R can do
> everything, so why not this? I did find a possible alternative, the
> textrect() function in the RPMG package.
>
> Thanks
> -Don
>
> --
> Don MacQueen
>
> Lawrence Livermore National Laboratory
> 7000 East Ave., L-627
> Livermore, CA 94550
> 925-423-1062
>
> ______________________________________________
> [hidden email] mailing list
> 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.

______________________________________________
[hidden email] mailing list
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.

MacQueen, Don

Re: Format text with outline?

Thank you, that's very useful.
-Don
--
Don MacQueen

Lawrence Livermore National Laboratory
7000 East Ave., L-627
Livermore, CA 94550
925-423-1062

On 6/19/12 1:11 PM, "baptiste auguie" <[hidden email]>
wrote:

>Have a look at this:
>
>http://stackoverflow.com/questions/7734535/control-font-thickness-without-
>changing-font-size
>
>and
>
>http://stackoverflow.com/questions/10686054/outlined-text-with-ggplot2
>which refers to a base graphics version.
>
>HTH,
>
>b.
>
>On 20 June 2012 07:58, MacQueen, Don <[hidden email]> wrote:
>> I'm using mtext() to annotate a plot. I would like, if possible, to have
>> the individual characters formatted with an outline or border, with a
>> contrasting fill color inside the borders.
>>
>> I'd appreciate suggestions or pointers toward a way to do this.
>>
>> The reason is because I'm creating a graphic with a transparent
>>background
>> [png(filename,bg='transparent')] that is to be overlaid on Google Earth.
>> The background at my location of interest is so varied in color and
>>shape
>> that it is difficult to find a text color that will reliably have enough
>> contrast to be legible. Google appears to have dealt with this by using
>> white text with a black border on each character,and I would like to do
>> the same, if possible.
>>
>> I have done some searching, without success so far. Admittedly, this is
>> well outside the scope of what R is designed for, but, hey, R can do
>> everything, so why not this? I did find a possible alternative, the
>> textrect() function in the RPMG package.
>>
>> Thanks
>> -Don
>>
>> --
>> Don MacQueen
>>
>> Lawrence Livermore National Laboratory
>> 7000 East Ave., L-627
>> Livermore, CA 94550
>> 925-423-1062
>>
>> ______________________________________________
>> [hidden email] mailing list
>> 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.