Thanks, but I'm not able to run this code in my system. I'm working in ConTeXt ver: 2014.12.06 14:20 MKIV beta fmt: 2014.12.8 int: english/english and the error message is:
runscript ! Isolated expression. <to be read again> ( mlib_luas_luacall->begingroup.runscript(
""for.s=(TEXT2):if.string.s:&s.elsei... lua->..._s,(TEXT3))else:mlib_luas_luacall((TEXT3)) fi.endgroup <*> ...lua("mp.print(#document.variables.labels)") : b[i] = unitsquare xscal... ! Extra tokens will be flushed. <to be read again> ( mlib_luas_luacall->begingroup.runscript( ""for.s=(TEXT2):if.string.s:&s.elsei... lua->..._s,(TEXT3))else:mlib_luas_luacall((TEXT3)) fi.endgroup <*> ...lua("mp.print(#document.variables.labels)") : b[i] = unitsquare xscal...
vacuous ! Improper final value has been replaced by 0. <to be read again> : <*> ...a("mp.print(#document.variables.labels)") : b[i] = unitsquare xscaled...
2014-12-08 9:21 GMT+00:00 Hans Hagen
On 12/7/2014 8:25 PM, DesdeChaves wrote:
I would like to pass the lua table keys and values to metapost. In the keys i have information about the paths names and in the values i have information about the label that should be draw in the center of each path (unitsquare).
In my code (see attach) the table in question is "weekdays_number_and_name".
I know that is possible to pass a array from metapost to lua. Is the reverse possible?
it's possible to ask values from within mp:
\starttext
\startluacode document.variables = { labels = { "one", "two", "three", } } \stopluacode
\startMPpage numeric dx, dy; dx = 4.4cm; dy = 0.53cm; path b[]; for i=1 upto lua("mp.print(\#document.variables.labels)") : b[i] = unitsquare xscaled dx yscaled dy shifted (0, (i-1)*dy); draw b[i]; label(lua("mp.quoted(document.variables.labels[" & decimal i & "])"), center b[i]); endfor \stopMPpage
\stoptext
----------------------------------------------------------------- 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 ----------------------------------------------------------------- ____________________________________________________________ _______________________ 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 ____________________________________________________________ _______________________
-- Atentamente DesdeChaves