tikz problem with fontsize

tikz problem with fontsize

[Martin Althoff]

Hello all, I am trying to set the fontsize in a tikz image and that is failing. Strangely
at the \node line with : ! Undefined control sequence.

As the MWE stands now, it will fail. The now commented line works.

main context file: /usr/local/context/tex/texmf-context/tex/context/base/mkiv/context.mkiv
current version: 2019.08.24 22:42

The fontsize statement work in kTikz.

What to do? Are there other ways to change font size in the Context TikZ?

Thanks for any input!

Martin


\usemodule[tikz]
\starttext

\starttikzpicture

\tikzstyle{label}=[minimum size=30mm,line
width=2mm,draw=blue!50,align=center,font=\fontsize{60}{60}\selectfont]
%\tikzstyle{label}=[minimum size=30mm,line width=2mm,draw=blue!50,align=center]

\node[label]  at  (1,1)  {88} ;
\stoptikzpicture
\stoptext

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Re: tikz problem with fontsize

[Hans Hagen]

On 8/31/2019 9:44 PM, Martin Althoff wrote:
> Hello all, I am trying to set the fontsize in a tikz image and that is failing. Strangely
> at the \node line with : ! Undefined control sequence.
> 
> As the MWE stands now, it will fail. The now commented line works.
> 
> main context file: /usr/local/context/tex/texmf-context/tex/context/base/mkiv/context.mkiv
> current version: 2019.08.24 22:42
> 
> The fontsize statement work in kTikz.
> 
> What to do? Are there other ways to change font size in the Context TikZ?
> 
> Thanks for any input!
> 
> Martin
> 
> 
> \usemodule[tikz]
> \starttext
> 
> \starttikzpicture
> 
> \tikzstyle{label}=[minimum size=30mm,line
> width=2mm,draw=blue!50,align=center,font=\fontsize{60}{60}\selectfont]
> %\tikzstyle{label}=[minimum size=30mm,line width=2mm,draw=blue!50,align=center]
> 
> \node[label]  at  (1,1)  {88} ;
> \stoptikzpicture
> \stoptext
just use context font commands, like

\tikzstyle{label}=[minimum size=30mm,line 
width=2mm,draw=blue!50,align=center,
font=\bfx]

but i think you can also do more, like

\tikzstyle{label}=[minimum size=30mm,line 
width=2mm,draw=blue!50,align=center,
font=\bfx\red\setstrut]

and such

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------
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Re: tikz problem with fontsize

[Martin Althoff]

Hi Hans, thanks for this. Yes, that works. 

Am I right to assume that Context does not have a full tikz engine in the background due
to the module implementation? For example, the \coordinate command is unknown as well.

Is there any way to integrate a standalone tikz into context documents? Sort of like svg
is handled through inkscape.

Martin


> just use context font commands, like
> 
> \tikzstyle{label}=[minimum size=30mm,line 
> width=2mm,draw=blue!50,align=center,
> font=\bfx]
> 
> but i think you can also do more, like
> 
> \tikzstyle{label}=[minimum size=30mm,line 
> width=2mm,draw=blue!50,align=center,
> font=\bfx\red\setstrut]
> 
> 

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___________________________________________________________________________________

Re: tikz problem with fontsize

[Hans Hagen]

On 9/1/2019 9:21 AM, Martin Althoff wrote:
> Hi Hans, thanks for this. Yes, that works.
> 
> Am I right to assume that Context does not have a full tikz engine in the background due
> to the module implementation? For example, the \coordinate command is unknown as well.

tikz is kind of generic so it assumes that you use the macro package 
font system (i suppose most examples in the manuals use latex commands 
for that)

what is \coordinate supposed to do: if it doesn't work it's not a tikz 
command i think

> Is there any way to integrate a standalone tikz into context documents? Sort of like svg
> is handled through inkscape.
probably but it defeats the idea of having a consisten approachg to fonts

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------
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___________________________________________________________________________________

Re: tikz problem with fontsize

[Ulrike Fischer]

Am Sun, 1 Sep 2019 13:05:10 +0200 schrieb Hans Hagen:

> what is \coordinate supposed to do:

it stores a coordinate under a name. And it works fine for me (I
would have been quite surprised if not):

\usemodule[tikz]
\starttext

\starttikzpicture
\coordinate (a) at (1,1);
\coordinate (b) at (2,2);
\draw[red,<->](a)--(b);
\stoptikzpicture
\stoptext


-- 
Ulrike Fischer 
https://www.troubleshooting-tex.de/

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Re: tikz problem with fontsize

[Martin Althoff]

Thanks for all the replies.

@Ulrike: You are right, this example you give works for me too. Me experiencing it not
working must have come out of some strange constellation.

@Aditya: Yes, it does. But {} are needed: 

\tikzstyle{label}=[font={\switchtobodyfont[20pt] \red}]


@Hagen: Yes, most examples do use Latex commands. 

What confused me, was/is which commands are from the macro package i.e. Latex or Context
and which are actually Tikz. Integrating font handling makes sense. That is why the idea
of using Context font commands did not occur to me. 

With this in mind, I'll go back to some slightly different syntax used in Tikz 3.1.4
manual and see what happens.

Thanks, Martin

On Sun, 2019-09-01 at 16:25 +0200, Ulrike Fischer wrote:
> Am Sun, 1 Sep 2019 13:05:10 +0200 schrieb Hans Hagen:
> 
> > what is \coordinate supposed to do:
> 
> it stores a coordinate under a name. And it works fine for me (I
> would have been quite surprised if not):
> 
> \usemodule[tikz]
> \starttext
> 
> \starttikzpicture
> \coordinate (a) at (1,1);
> \coordinate (b) at (2,2);
> \draw[red,<->](a)--(b);
> \stoptikzpicture
> \stoptext
> 
> 

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Re: tikz problem with fontsize

[Aditya Mahajan]

On Sat, 31 Aug 2019, Martin Althoff wrote:

> What to do? Are there other ways to change font size in the Context TikZ?

The equivalent of LaTeX's \selectfont{}{} in ConTeXt is 
\switchtobodyfont[...].

See https://wiki.contextgarden.net/Font_Switching

Aditya
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