Re: [NTG-context] ConText, TikZ and definecolor: undefined control sequence

Hello, I had the same problem, so I desided to define colors by hand. \definecolor [lightgray] [h=D3D3D3] \usemodule[tikz] \unprotect \pgfutil@definecolor{black}{gray}{0} \pgfutil@definecolor{gray}{gray}{0.5} \pgfutil@definecolor{lightgray}{gray}{0.9} \pgfutil@definecolor{white}{gray}{1} \protect If you want to fix script, you need to change line: local cv = colors.value(attributes) into local cv = attributes.colors.values Just guess, untested. Regards, Marius On 27 October 2010 15:49, Cedric Mauclair wrote:

Hi,

Same problem here with the latest TikZ 2.10.

Regards.

-- Cédric

On Tue, Oct 26, 2010 at 12:20, Michael Murphy wrote:

...

Hi,

I've been trying to get colors to work in TikZ, and found a nice fix by Aditya here:

http://archive.contextgarden.net/message/20100120.220124.f2d3f8bc.en.html

The problem is that the lua script doesn't work: I get a problem with 'colors'.

LuaTeX error <main ctx instance>:13: attempt to index global 'colors' (a nil value) stack traceback:        <main ctx instance>:13: in function 'registercolor'        <main ctx instance>:1: in main chunk.

The input file from Aditya (called colorfix.tex) is

\startluacode  pgfutil = pgfutil or { }  local texsprint, format = tex.sprint, string.format  local prtcatcodes = tex.prtcatcodes

 function pgfutil.unsupported_color(name)    texsprint(prtcatcodes,format("\\PackageError{pgf}{color %s has unsupported model}{}", name))    texsprint(prtcatcodes,format("\\pgfutil@definecolor{%s}{gray}{0}", name))  end

 function pgfutil.registercolor(name, attributes)    print(name, attributes)    local cv = colors.value(attributes)    if cv then      local model = cv[1]      if model == 1 then        print("model=1")        texsprint(prtcatcodes,format("\\pgfutil@definecolor{%s}{gray}{% 1.3f}", name, cv[2]))      elseif model == 3 then        print("model=2")        texsprint(prtcatcodes,format("\\pgfutil@definecolor{%s}{rgb}{% 1.3f,%1.3f,%1.3f}", name, cv[3], cv[4], cv[5]))      else        print("no model")        pgfutil.unsupported_color(name)      end    else        print("no color")        pgfutil.unsupported_color(name)    end  end \stopluacode

\unprotect \def\pgfutil@registercolor#1%  {\ctxlua{pgfutil.registercolor("#1",\thecolorattribute       {#1})}} \protect

and my test file is

\usemodule[tikz] \input colorfix

\definecolor[mycolor][r=1,g=0,b=1]

\starttext \starttikzpicture \fill[mycolor] (0,0) circle (1); \stoptikzpicture \stoptext

I'm running the latest beta.

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___________________________________________________________________________________ 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 ___________________________________________________________________________________