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 13:50:02 +0100 [thread overview]
Message-ID: <4D3D757A.8040307@gmx.net> (raw)
In-Reply-To: <B52C4FC9-C78C-4F6F-8945-A9B631AE7F72@me.com>
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;
>
> \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 i use an outdated version (31.12.2010)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
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next prev parent reply other threads:[~2011-01-24 12:50 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 [this message]
2011-01-24 13:26 ` Peter Rolf
2011-01-24 13:33 dalyoung
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