Hi,
There's now a convenient way to pass data back from an mprun to the tex
instance:
\starttext
\startMPcode
passvariable("version","1.0") ;
passvariable("number",123) ;
passvariable("string","whatever") ;
passvariable("point",(1,2)) ;
passvariable("triplet",(1,2,3)) ;
passvariable("quad",(1,2,3,4)) ;
passvariable("boolean",false) ;
passvariable("path",fullcircle scaled 1cm) ;
draw fullcircle scaled 20pt ;
\stopMPcode
\ctxlua{inspect(metapost.variables)}
\ctxcommand{mprunvar("number")}
\ctxcommand{mprunvar("string")}
\stoptext
the inspect shows:
table={
["boolean"]=false,
["number"]=123,
["path"]={
{ 10.02177, 10.02177, 12.67969, 7.36386, 7.36386, 12.67969 },
{ 0, 14.17323, 3.75914, 14.17323, -3.75914, 14.17323 },
{ -10.02177, 10.02177, -7.36386, 12.67969, -12.67969, 7.36386 },
{ -14.17323, 0, -14.17323, 3.75914, -14.17323, -3.75914 },
{ -10.02177, -10.02177, -12.67969, -7.36386, -7.36386, -12.67969 },
{ 0, -14.17323, -3.75914, -14.17323, 3.75914, -14.17323 },
{ 10.02177, -10.02177, 7.36386, -12.67969, 12.67969, -7.36386 },
{ 14.17323, 0, 14.17323, -3.75914, 14.17323, 3.75914 },
},
["point"]={ 1, 2 },
["quad"]={ 1, 2, 3, 4 },
["string"]="whatever",
["triplet"]={ 1, 2, 3 },
["version"]="1.0",
}
the mprunvar pips a value or concatination to tex
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