---------- Forwarded message ----------
From: Fabrice Couvreur <fabrice1.couvr...@gmail.com>
Date: Tue, Mar 20, 2018 at 4:29 PM
Subject: [NTG-context] Macro to write a vector (Metafun) is broken
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Hello Hans,
The macro you wrote to draw the arrows of the vectors does not seem to
work anymore.
Thank you
Fabrice
Did you check ou tthe latest meta-imp file? Alan and I added more and
also changed the interface a little which might have consequences.
\useMPlibrary[mat]
% will be in meta-imp-mat.mkiv
\startMPextensions
vardef math_stacker_arrow_shape =
image (
drawarrow
(OverlayWidth,OverlayOffset) -- (0,OverlayOffset)
withcolor
OverlayLineColor ;
setbounds currentpicture to boundingbox currentpicture
bottomenlarged (OverlayOffset/2) topenlarged (OverlayOffset/2) ;
)
enddef ;
vardef math_stacker_leftarrow_shape =
math_stacker_arrow_shape
enddef ;
vardef math_stacker_rightarrow_shape =
math_stacker_arrow_shape rotated 180
enddef ;
\stopMPextensions
\startuniqueMPgraphic{math:stacker:\number"2190}
math_stacker_draw(math_stacker_leftarrow_shape) ;
\stopuniqueMPgraphic
\startuniqueMPgraphic{math:stacker:\number"2192}
math_stacker_draw(math_stacker_rightarrow_shape) ;
\stopuniqueMPgraphic
% so far
\setupmathstackers
[both] % vfenced]
[color=darkred,
alternative=mp]
\setupmathstackers
[top]
[color=darkred,
alternative=mp]
\setupmathstackers
[bottom]
[color=darkred,
alternative=mp]
\starttext
$\overbracket {a+b+c+d} \quad \underbracket {a+b+c+d} \quad
\doublebracket{a+b+c+d}$ \blank
$\overparent {a+b+c+d} \quad \underparent {a+b+c+d} \quad
\doubleparent {a+b+c+d}$ \blank
$\overbrace {a+b+c+d} \quad \underbrace {a+b+c+d} \quad
\doublebrace {a+b+c+d}$ \blank
$\overbar {a+b+c+d} \quad \underbar {a+b+c+d} \quad
\doublebar {a+b+c+d}$ \blank
$\overleftarrow {a+b+c+d} \quad \overrightarrow {a+b+c+d} $ \blank
$\underleftarrow {a+b+c+d} \quad \underrightarrow {a+b+c+d} $ \blank
\stoptext
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___________________________________________________________________________________
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Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the
Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : http://contextgarden.net
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