TikZ node and color

TikZ node and color

[Christoph Reller]

Dear List,

I use the latest version of ConTeXt and I have the following MWE:

\usemodule[tikz]
\starttext
  \starttikzpicture
    \node {\color[red]{red}};
    \node[xshift=30] {\color[red]{not red}};
  \stoptikzpicture
\stoptext

Can anybody tell me why the second node is not colored red?

Aside: In LaTeX when using \color{red}{...} this tikzpicture renders
correctly. For LaTeX I use TikZ version 3.0.1a, in ConTeXt it seems to
be version 3.0.1.

Any feedback is welcome.

Regards,
Christoph
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wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: TikZ node and color

[Hans Hagen]

On 7/5/2016 9:25 AM, Christoph Reller wrote:
> Dear List,
>
> I use the latest version of ConTeXt and I have the following MWE:
>
> \usemodule[tikz]
> \starttext
>   \starttikzpicture
>     \node {\color[red]{red}};
>     \node[xshift=30] {\color[red]{not red}};
>   \stoptikzpicture
> \stoptext
>
> Can anybody tell me why the second node is not colored red?
>
> Aside: In LaTeX when using \color{red}{...} this tikzpicture renders
> correctly. For LaTeX I use TikZ version 3.0.1a, in ConTeXt it seems to
> be version 3.0.1.
>
> Any feedback is welcome.

tikz has its own color mechanisms and they don't mix well with context 
color support so context probbably thinks it's still in red (so you need 
to force something non red in front)

\starttikzpicture
     \node {\color[red]{red}};
     \node[xshift=30] {\zwnj\color[red]{not red}};
\stoptikzpicture


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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
___________________________________________________________________________________

Re: TikZ node and color

[Christoph Reller]

On Tue, 5 Jul 2016 10:21:48 +0200, Hans Hagen <pragma@wxs.nl> wrote:
> On 7/5/2016 9:25 AM, Christoph Reller wrote:
>> Dear List,
>>
>> I use the latest version of ConTeXt and I have the following MWE:
>>
>> \usemodule[tikz]
>> \starttext
>>   \starttikzpicture
>>     \node {\color[red]{red}};
>>     \node[xshift=30] {\color[red]{not red}};
>>   \stoptikzpicture
>> \stoptext
>>
>> Can anybody tell me why the second node is not colored red?
>>
>> Aside: In LaTeX when using \color{red}{...} this tikzpicture renders
>> correctly. For LaTeX I use TikZ version 3.0.1a, in ConTeXt it seems to
>> be version 3.0.1.
>>
>> Any feedback is welcome.
>
> tikz has its own color mechanisms and they don't mix well with context
> color support so context probbably thinks it's still in red (so you need
> to force something non red in front)
>
> \starttikzpicture
>      \node {\color[red]{red}};
>      \node[xshift=30] {\zwnj\color[red]{not red}};
> \stoptikzpicture

Thank you Hans! This workaround does the job.

For those interested: The \zwnj can be prepended automatically to
every node by setting "every node/.add code=\zwnj". The updated MWE
now is:

\usemodule[tikz]
\tikzset{every node/.add code=\zwnj}
\starttext
  \starttikzpicture
    \node {\color[red]{red}};
    \node[xshift=30] {\color[red]{not red}};
  \stoptikzpicture
\stoptext

Cheers,
Christoph
___________________________________________________________________________________
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
___________________________________________________________________________________