On 12/31/2021 3:13 AM, kauśika via ntg-context wrote:
Dear list,
I have the following graphic
\startuseMPgraphic{TitleGraphic}
draw outlinetext.b (\MPstring{TitleText})
(withcolor "titlefg")
(withcolor "titleoutline");
\stopuseMPgraphic
which I tried to use as follows to produce a stylized 'title' head:
\setupMPtext{TitleText}{%
\starteffect[stretch]\bfc\namedstructurevariable{title}{title}\stopeffect}
\useMPgraphic{TitleGraphic}
low level pdf magic ... so not done in mp
[colors "titlefg" and "titleoutline" are set using \definecolor]
But, the 'stretch' effect caused by \starteffect[stretch]…\stopeffect does not
work with 'outlinetext' method in the MPgraphic. I have verified that the
desired effect is produced using 'textext' method instead. But in that case I
have to cheat (i.e draw twice; once with blownup) to get the text outline.
Now, if I write instead
\setupMPtext{TitleText}{%
\kerncharacters[0.15]\bfc\namedstructurevariable{title}{title}}
\useMPgraphic{TitleGraphic}
tex magic so done in tex
then the desired effect is produced. As such, my purpose is served well by
using \kerncharacters.
Nonetheless, I request your kind help in understanding why this is happening
and/or if I am doing something wrong.
\starteffect is kind of old (comes from mkii), but you could use the
pseudo font feature effect in mkiv / lmtx which then makes a real font
instance instead of mixing in some pdf magic
Hans
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