* Re: ConText and definecolor: undefined control sequence
[not found] <20100112150255.GA8216@shahin.dnsalias.com>
@ 2010-01-20 22:01 ` Aditya Mahajan
0 siblings, 0 replies; only message in thread
From: Aditya Mahajan @ 2010-01-20 22:01 UTC (permalink / raw)
To: Ben; +Cc: mailing list for ConTeXt users, pgf Mailing-List
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On Tue, 12 Jan 2010, Ben wrote:
> Dear List,
> using the pgf build from 20100103 and texlive2009 from the Debian unstable
> I've just tried to do the following:
>
> \enableregime[utf]
> \usemodule[tikz]
>
> \starttext
>
> \startTEXpage
> \pgfutil@definecolor{magenta}{rgb}{1,0,1}
>
> \starttikzpicture
> \draw (0,0) -- (1,1);
> \stoptikzpicture
> \stopTEXpage
>
> \stoptext
>
> I always get
>
> ! Undefined control sequence.
> l.21 \pgfutil
> @definecolor{magenta}{rgb}{1,0,1}
> ?
> ! Emergency stop.
> l.21 \pgfutil
> @definecolor{magenta}{rgb}{1,0,1}
> End of file on the terminal!
You need to add \unprotect and \protect
\unprotect
\pgfutil@definecolor{...}
\protect
They are similar to \makeatletter and \makeatother in LaTeX.
The correct way is to ConTeXt's color mechanism to define colors. For
example,
\usemodule[tikz]
\definecolor[mycolor][r=1,g=0,b=1]
\starttext
\starttikzpicture
\node[text=mycolor] {Test} ;
\stoptikzpicture
\stoptext
This works with MkII but gives an error with MkIV.
! Undefined control sequence.
\pgfutil@registercolor ...ef \pgf@temp {\PDFcolor
{#1}}\edef \pgf@marshal
{\...
\pgfutil@colorlet ...x \pgfutil@registercolor {#2}
\fi \edef \pgf@marshal
{\n...
\tikz@next ...futil@colorlet {.}{\tikz@textcolor }
\fi \pgfsetcolor
{.}\setbo...
l.7 \node[text=mycolor] {
Test}
That is because MkII and MkIV have a different color model,
and tikz does not support the MkIV model yet.
I am attaching a fix for that. I do not know what is the best way to
incorporate it into tikz (perhaps a pgfutils-mkiv.tex file). For the
moment, you can just input it after loading tikz.
Aditya
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\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
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2010-01-20 22:01 ` ConText and definecolor: undefined control sequence Aditya Mahajan
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