Re: Outlined text (from MP) inline in ConText has incorrect baseline (i.e. no depth)

[Hans Hagen via ntg-context <ntg-context@ntg.nl>]

On 10/7/2021 4:14 PM, Rudd, Kevin via ntg-context wrote:
> Hey---
> 
> I'm trying to insert outlined text (derived from MetaFun example code) 
> into a document and it seems to work up to the point that the text has 
> depth (descenders). There's a previous post that mentions using 
> textcommand for titles to ensure that the appropriate baseline is used 
> but I haven't figured out why that would work; for my purposes, I'm 
> insert the text inline so that solution wouldn't work here. I have 
> included a MWE that demonstrates the problem; I've tried putting both 
> the text and the outlined text in a box, then adjusting the outlined 
> text by the depth of the text itself but that doesn't seem to work. I 
> expect that there's an easy way either in MP or ConTeXt, but I haven't 
> found it yet.
> 
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> 
> % \OutlinedText[glyph][outline]{text}
> \def\OutlinedText{\dodoubleempty\doOutlinedText}
> 
> \def\doOutlinedText[#1][#2]#3%
> {%
>      % ((((\type{#1}::\type{#2}::\type{#3}))))
>      \ifsecondargument
>          \makeOutlinedText{#1}{#2}{#3}%
>      \else\iffirstargument
>          \makeOutlinedText{#1}{black}{#3}%
>      \else
>          \makeOutlinedText{white}{black}{#3}%
>      \fi\fi
> }
> 
> \def\makeOutlinedText#1#2#3%
> {%
>      \startMPcode
>      draw outlinetext.b("#3")
>           (withcolor "#1")
>           (withcolor "#2" withpen pencircle scaled 1/16);
>      \stopMPcode
>      \autoinsertnextspace
> }
> 
> \starttext
>      start
>           \OutlinedText{aaa}
>      and  \OutlinedText{Bbb}
>      and  \OutlinedText{ggg}
>      and  \OutlinedText{Yyy}
>      finish
> \stoptext
> 
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> 
> 
> (Here is the code with my attemps to shift the baseline; the \dp & \wd 
> approach seems to do nothing, and the \lower doesn't compile and I 
> haven't pursued why yet.)
> 
> 
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> 
> % \def\makeOutlinedText#1#2#3%
> % {%
> %     \newbox\tBox
> %     \newbox\uBox
> %     \setbox\tBox\hbox{#3}
> %     \setbox\uBox
> %     \hbox{%
> %         \startMPcode
> %         draw outlinetext.b("#3")
> %              (withcolor "#1")
> %              (withcolor "#2" withpen pencircle scaled 1/16);
> %         \stopMPcode
> %     }%
> %     % \lower\uBox\dp\tBox
> %     \ht\uBox=\ht\tBox
> %     \dp\uBox=\dp\tBox
> %     \unbox\uBox
> %     \autoinsertnextspace
> }
> 
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> 
> 
> Any feedback or suggestions would be appreciated.

\defineeffect[MyEffect][alternative=outer,rulethickness=.1pt]

\starttext
     start
                {\effect[MyEffect]{aaa}} \OutlinedText{aaa}
     and  {\red  \effect[MyEffect]{Bbb}} \OutlinedText{Bbb}
     and  {\green\effect[MyEffect]{ggg}} \OutlinedText{ggg}
     and  {\blue \effect[MyEffect]{Yyy}} \OutlinedText{Yyy}
     finish
\stoptext


> 
> Kevin W. Rudd, Ph.D.
> CAPT, USN (Ret)
> 
> Computer Architecture & Computer Engineering
> Advanced Computing Systems (ACS) Research Program
> Laboratory for Physical Sciences (LPS)
> 
> 443-654-7878
> kevin@lps.umd.edu <mailto:kevin@lps.umd.edu>
> 
> Visiting Research Professor
> United States Naval Academy
> 
> rudd@usna.edu <mailto:rudd@usna.edu>
> 
> 
> ___________________________________________________________________________________
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> 


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