Aditya, thanks for looking into it.

ConTeXt version: 2009.02.25 14:43

$ luatex --version
This is LuaTeX, Version snapshot-0.35.0-2009022421, build unknown

untouched version of tikz from minimals

Aditya Mahajan wrote:
> On Sat, 21 Feb 2009, Mohamed Bana wrote:
> 
>> hi,
>>
>> why does this fail with luatex?  also, try \enableregime[utf-8] i got 
>> another error message when that's enabled.
> 
> You do not need \enableregime[utf-8] in luatex. Everything is already 
> utf-8.
> 
> The following works for me (see attached pdf). For some reason, the text 
> in the first node is black.  Notice the \tikzstyle line is different 
> from what you had.

BTW, the fix for the arrows is;

   \usetikzlibrary[arrows]


*I think* the problem was with;

   \usemodule[pgfplots]

if I include it get the following in the resulting PDF;

   mapped colorrgb0,0,0


ad2.tex is original


--- ad.tex	2009-03-07 23:32:53.000000000 +0000
+++ ad2.tex	2009-03-07 23:34:24.000000000 +0000
@@ -3,16 +3,12 @@
  \let\z@\zeropoint
  \protect
  \usemodule[tikz]
-\usetikzlibrary[arrows,automata]
-
-%\usemodule[pgfplots]
-\setupcolors[state=start]

  \starttext

  \starttikzpicture[->,>=stealth',shorten >=1pt,auto,node distance=4cm,
                      semithick]
-  \tikzstyle{every state}=[fill=black,draw=none,text=white]
+  \tikzstyle{state}=[fill=gray,draw=none,text=white]

    \node[state]         (s0) [label=left:$s_0$] {$p,q$};
    \node[state]         (s1) [below right of=s0,label=right:$s_1$] {$q$};
@@ -32,5 +28,4 @@
  \stoptikzpicture


-\stoptext
-
+\stoptext






Mohamed

> 
> \unprotect
> \newtoks\toks@
> \let\z@\zeropoint
> \protect
> \usemodule[tikz]
> 
> \starttext
> 
> \starttikzpicture[->,>=stealth',shorten >=1pt,auto,node distance=4cm,
>                     semithick]
>   \tikzstyle{state}=[fill=gray,draw=none,text=white]
> 
>   \node[state]         (s0) [label=left:$s_0$] {$p,q$};
>   \node[state]         (s1) [below right of=s0,label=right:$s_1$] {$q$};
>   \node[state]         (s2) [below of=s0,label=right:$s_2$] {$q$};
>   \node[state]         (s3) [below left of=s0,label=left:$s_3$] {$p$};
> 
>   \path (s0) edge [loop above] (s0)
>              edge              (s1)
>              edge              (s3)
>         (s1) edge [bend right] (s3)
>         (s2) edge [loop below] (s2)
>              edge              (s0)
>              edge [right]      (s1)
>         (s3) edge [right]      (s1)
>              edge [right]      (s2);
> 
> \stoptikzpicture
> 
> 
> \stoptext
> 
> LuaTeX, Version snapshot-0.35.0-2009030712, build 1950
> ConTeXt version: 2009.03.07 00:29
> 
> CVS version of tikz: date 2009-03-01 from 
> http://www.texample.net/tikz/builds/
> 
> Aditya
> 
> 
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