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%D \module
%D [ file=meta-imp-kindergarten,
%D version=2020.00.00,
%D title=\METAPOST\ Graphics,
%D subtitle=Kindergarten Math,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
% \nopdfcompression
%D For Arthur, who told me that about the urban legend that \CONTEXT\ can do only
%D kindergarten math. Somehow I'd forgotten top add this to the distribution
\startMPcalculation{simplefun}
pen KindergartenPen ; KindergartenPen := pencircle scaled 1 ;
% 10 x 10 grid
vardef KindergartenEqual =
draw image
(
draw (2,6) -- (9,5) ;
draw (2,4) -- (8,3) ;
)
shifted (0,-2)
withpen KindergartenPen
withcolor "KindergartenEqual"
enddef ;
vardef KindergartenPlus =
draw image
(
draw (1,4) -- (9,5) ;
draw (4,1) -- (5,8) ;
)
shifted (0,-2)
withpen KindergartenPen
withcolor "KindergartenPlus"
enddef ;
vardef KindergartenMinus =
draw image
(
draw (1,5) -- (9,4) ;
)
shifted (0,-2)
withpen KindergartenPen
withcolor "KindergartenMinus"
enddef ;
vardef KindergartenTimes =
draw image
(
draw (2,1) -- (9,8) ;
draw (8,1) -- (2,8) ;
)
shifted (0,-2)
withpen KindergartenPen
withcolor "KindergartenTimes"
enddef ;
vardef KindergartenDivided =
draw image
(
draw (2,1) -- (8,9) ;
)
shifted (0,-2)
withpen KindergartenPen
withcolor "KindergartenDivided"
enddef ;
lmt_registerglyphs [
name = "kindergarten",
units = 10,
% usecolor = true,
width = 10,
height = 8,
depth = 2,
] ;
lmt_registerglyph [ category = "kindergarten", unicode = "0x003D",
code = "KindergartenEqual"
] ;
lmt_registerglyph [ category = "kindergarten", unicode = "0x002B",
code = "KindergartenPlus"
] ;
lmt_registerglyph [ category = "kindergarten", unicode = "0x2212",
code = "KindergartenMinus"
] ;
lmt_registerglyph [ category = "kindergarten", unicode = "0x00D7",
code = "KindergartenTimes"
] ;
lmt_registerglyph [ category = "kindergarten", unicode = "0x002F",
code = "KindergartenDivided"
] ;
\stopMPcalculation
\definecolor[KindergartenEqual] [darkgreen]
\definecolor[KindergartenPlus] [darkred]
\definecolor[KindergartenMinus] [darkred]
\definecolor[KindergartenTimes] [darkblue]
\definecolor[KindergartenDivided][darkblue]
\continueifinputfile{meta-imp-kindergarten.mkxl}
\definefontfeature
[mathextra]
[metapost=kindergarten]
\setupbodyfont[dejavu]
\startTEXpage[offset=10pt]
$ y = 2 \times x + a - b / 3 $ \par
\hfill \infofont{kindergarten math}
\stopTEXpage
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