Ok, now that I've had some time to experiment with effects and attributes,
here's what I ended up with. It uses an overlaid double draw to create outlined
text with optional fill (white), border (black). I've only tested it with words
so haven't worked out how it could be adapted to support longer strings (e.g.
the \hbox+\rlap hack likely will disappoint/fail in that case). For parameter
simplicity, I don't allow specifying the outline width separately; but that
might be another good exercise to use key–value parameters instead.
Thanks for the help,
---K
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% \OutlinedText[fill][outline]{text}
\def\OutlinedText{\dodoubleempty\doOutlinedText}
\def\doOutlinedText[#1][#2]#3%
{%
\ifsecondargument
\makeOutlinedText{#1}{#2}{#3}%
\else\iffirstargument
\makeOutlinedText{#1}{black}{#3}%
\else
\makeOutlinedText{white}{black}{#3}%
\fi\fi
}
\defineeffect[OuterEffect][alternative=outer,rulethickness=0.1pt]
\defineeffect[InnerEffect][alternative=inner,rulethickness=0.1pt]
\def\makeOutlinedText#1#2#3%
{%
\hbox%
{%
\rlap{\color[#1]{\effect[InnerEffect]{#3}}}%
\color[#2]{\effect[OuterEffect]{#3}}%
}%
\autoinsertnextspace
}
%%%%%%%%%%%%%%%%%%
\starttext
\OutlinedText[red][yellow]{Arguments: red yellow \ldots}\\
\OutlinedText[red]{Arguments: red \ldots}\\\\
\OutlinedText{Arguments: \ldots}\\
\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
ke...@lps.umd.edu<mailto:ke...@lps.umd.edu>
Visiting Research Professor
United States Naval Academy
r...@usna.edu<mailto:r...@usna.edu>
On Oct 8, 2021, at 07:36, Hans Hagen
<j.ha...@xs4all.nl<mailto:j.ha...@xs4all.nl>> wrote:
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
ke...@lps.umd.edu<mailto:ke...@lps.umd.edu> <mailto:ke...@lps.umd.edu>
Visiting Research Professor
United States Naval Academy
r...@usna.edu<mailto:r...@usna.edu> <mailto:r...@usna.edu>
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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the
Wiki!
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