From: Peter Rolf <indiego@gmx.net>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: metafun- how to pass array as an argument
Date: Mon, 24 Jan 2011 14:26:17 +0100 [thread overview]
Message-ID: <4D3D7DF9.209@gmx.net> (raw)
In-Reply-To: <4D3D757A.8040307@gmx.net>
[-- Attachment #1: Type: text/plain, Size: 1935 bytes --]
Am 24.01.2011 13:50, schrieb Peter Rolf:
> Am 24.01.2011 13:18, schrieb dalyoung:
>> \startbuffer[a]
>> path p;
>> numeric bwidth, u, lastpoint;
>> u :=1cm;
>> p := fullcircle scaled .3u;
>> lastpoint := 0;
>>
>> def draw_balls = %(expr s)
> def draw_balls(text s) =
>
>> draw (0,0) -- (0, u);
>> for i=3,5,0,2,1,7:
> for i=s:
>
>> for j = 1 upto i:
>> draw p shifted (lastpoint+.32*j*u,.3u);
>> endfor;
>> bwidth := .32i*u+.5u;
>> draw (lastpoint,0) -- (lastpoint +bwidth,0) -- (lastpoint +bwidth,u);
>> lastpoint := lastpoint+bwidth;
>> endfor;
>> enddef;
>>
>> draw_balls;
>>
draw_balls(3,5,0,2,1,7)
sorry, i forgot to change this line.
example code is attached for testing...
>> \stopbuffer
>>
>> \starttext
>> \processMPbuffer[a]
>> \stoptext
>
> works in mkii, but fails in mkiv. i use an outdated version (31.12.2010)
> here.
>
>
> ! LuaTeX error <main ctx instance>:1: attempt to call field 'feedback'
> (a nil value)
> stack traceback:
> <main ctx instance>:1: in main chunk.
> <argument> ....feedback("\currentMPgraphicname ")}
>
> \processMPgraphic ...ntMPgraphicformat ", \!!bs #1
> ;\!!es , \!!bs
> \currentMPi...
> <argument> ...feedback("\currentMPgraphicname ")}}
> \endMPgraphicgroup
> \secondoftwoarguments #1#2->#2
>
> l.25 \processMPbuffer[a]
>
> ?
>
>
> best wishes, Peter
> ___________________________________________________________________________________
> 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
> ___________________________________________________________________________________
>
[-- Attachment #2: test.tex --]
[-- Type: text/plain, Size: 494 bytes --]
\startbuffer[a]
path p;
numeric bwidth, u, lastpoint;
u :=1cm;
p := fullcircle scaled .3u;
lastpoint := 0;
def draw_balls(text s) =
draw (0,0) -- (0, u);
for i=s:
for j = 1 upto i:
draw p shifted (lastpoint+.32*j*u,.3u);
endfor;
bwidth := .32i*u+.5u;
draw (lastpoint,0) -- (lastpoint +bwidth,0) -- (lastpoint +bwidth,u);
lastpoint := lastpoint+bwidth;
endfor;
enddef;
draw_balls(3,5,0,2,1,7);
\stopbuffer
\starttext
\processMPbuffer[a]
\stoptext
[-- Attachment #3: Type: text/plain, Size: 486 bytes --]
___________________________________________________________________________________
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
___________________________________________________________________________________
next prev parent reply other threads:[~2011-01-24 13:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-24 12:18 dalyoung
2011-01-24 12:50 ` Peter Rolf
2011-01-24 13:26 ` Peter Rolf [this message]
2011-01-24 13:33 dalyoung
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