[NTG-context] Re: Number in a circle

[Wolfgang Schuster <wolfgang.schuster.lists@gmail.com>]

Kip Warner schrieb am 27.05.2024 um 19:23:
> On Mon, 2024-05-27 at 05:43 -0400, seyal zavira wrote:
>> if you don't want to use metapost you can also use svg for background
>> for example:
>>
>> \startuniqueMPgraphic{centered_svg}
>>    draw lmt_svg [
>>      filename = "badge.svg",
>>      width  = OverlayWidth,
>>      y      = OverlayHeight/2,  ] ;
>> \stopuniqueMPgraphic
>>
>> \defineoverlay
>>    [svgback]
>>    [\useMPgraphic{centered_svg}]
>>
>> \defineframed[Sback][location=low,background=svgback,frame=off,offset=8pt]
>>
>> \starttext
>> this is a sample \Sback{1} text
>> \stoptext
> 
> Hello Seyal,
> 
> This does work but it's a bit annoying that I have to create an SVG of
> just a circle and store it somewhere. I'm fine with using MetaPost,
> especially if it makes this easier, but I just don't know how.

You can use the \framed solution and modify it to use a metapost graphic 
as background, it also easy to replace the circle with a hexagon etc.

\startuseMPgraphic{textcircle}
     draw fullcircle
         xscaled OverlayWidth
         yscaled OverlayWidth
         withcolor OverlayLineColor ;
\stopuseMPgraphic

\defineoverlay[textcircle][\useMPgraphic{textcircle}]

\defineframed
   [textcircled]
   [      width=1.5em,
         height=1.5em,
         frame=off,
    background=textcircle,
      location=low,
        offset=none]

\starttext
\dostepwiserecurse{0}{9}{1}{#1 = \textcircled{#1}\blank}
\stoptext

Wolfgang
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