* new mp trickery / next challenge for alan and mari
@ 2013-09-10 16:11 Hans Hagen
2013-09-10 16:34 ` Alan BRASLAU
0 siblings, 1 reply; 2+ messages in thread
From: Hans Hagen @ 2013-09-10 16:11 UTC (permalink / raw)
To: mailing list for ConTeXt users
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
-----------------------------------------------------------------
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
| www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: new mp trickery / next challenge for alan and mari
2013-09-10 16:11 new mp trickery / next challenge for alan and mari Hans Hagen
@ 2013-09-10 16:34 ` Alan BRASLAU
0 siblings, 0 replies; 2+ messages in thread
From: Alan BRASLAU @ 2013-09-10 16:34 UTC (permalink / raw)
To: mailing list for ConTeXt users; +Cc: pragma
Indeed a challenge!
Alan
On Tue, 10 Sep 2013 18:11:13 +0200
Hans Hagen <pragma@wxs.nl> wrote:
> 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
___________________________________________________________________________________
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://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
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