Setup font size by dimension variable

Setup font size by dimension variable

[Dmitriy Tokarev]

Hi all,

I want to set the font size by using the dimension variable, but it doesn't work. What am I doing wrong?

\definemeasure[AAA][20pt]
\newdimen\BBB \BBB=20pt

\starttext
TEXT

% don't work
\switchtobodyfont[\measure{AAA}]
AAA

% don't work
\switchtobodyfont[\the\BBB]
BBB

% ok
\switchtobodyfont[20pt]
TEXT 20pt

\stoptext

--
Dmitriy
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Re: Setup font size by dimension variable

[Philipp Gesang]

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···<date: 2013-08-04, Sunday>···<from: Dmitriy Tokarev>···

> Hi all,
> 
> I want to set the font size by using the dimension variable, but it doesn't work. What am I doing wrong?
> 
> \definemeasure[AAA][20pt]
> \newdimen\BBB \BBB=20pt
> 
> \starttext
> TEXT
> 
> % don't work
> \switchtobodyfont[\measure{AAA}]
> AAA
> 
> % don't work
> \switchtobodyfont[\the\BBB]
> BBB
> 
> % ok
> \switchtobodyfont[20pt]
> TEXT 20pt
> 
> \stoptext

Hi Dmitriy,

the size-related arguments to \switchtobodyfont and
\setupbodyfont aren’t real TeX dimensions but identifiers for
predefined bodyfont sets. Example:

  \def\mainfontsize{20pt}
  \definebodyfontenvironment [\mainfontsize]

  \starttext
    TEXT
    \switchtobodyfont [\mainfontsize]
    TEXT 20pt
  \stoptext

See this thread for some background info:

  http://www.mail-archive.com/ntg-context@ntg.nl/msg63901.html

Best regards,
Philipp


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___________________________________________________________________________________

Re: Setup font size by dimension variable

[Philipp Gesang]

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···<date: 2013-08-04, Sunday>···<from: Philipp Gesang>···

> ···<date: 2013-08-04, Sunday>···<from: Dmitriy Tokarev>···
> 
> > Hi all,
> > 
> > I want to set the font size by using the dimension variable, but it doesn't work. What am I doing wrong?
> > 
> > \definemeasure[AAA][20pt]
> > \newdimen\BBB \BBB=20pt
> > 
> > \starttext
> > TEXT
> > 
> > % don't work
> > \switchtobodyfont[\measure{AAA}]
> > AAA
> > 
> > % don't work
> > \switchtobodyfont[\the\BBB]
> > BBB
> > 
> > % ok
> > \switchtobodyfont[20pt]
> > TEXT 20pt
> > 
> > \stoptext
> 
> Hi Dmitriy,
> 
> the size-related arguments to \switchtobodyfont and
> \setupbodyfont aren’t real TeX dimensions but identifiers for
> predefined bodyfont sets. Example:
> 
>   \def\mainfontsize{20pt}
>   \definebodyfontenvironment [\mainfontsize]
> 
>   \starttext
>     TEXT
>     \switchtobodyfont [\mainfontsize]
>     TEXT 20pt
>   \stoptext
> 
> See this thread for some background info:
> 
>   http://www.mail-archive.com/ntg-context@ntg.nl/msg63901.html

Sorry for the self-reply, but I just remembered that I already
wikified the topic:

  http://wiki.contextgarden.net/unexpected_behavior#Treacherous_Dimensions

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___________________________________________________________________________________

[***SPAM***] Re: Setup font size by dimension variable

[Dmitriy Tokarev]

04.08.2013, 16:49, "Philipp Gesang" <Philipp.Gesang@alumni.uni-heidelberg.de>:
>>  the size-related arguments to \switchtobodyfont and
>>  \setupbodyfont aren’t real TeX dimensions but identifiers for
>>  predefined bodyfont sets. Example:
>>
>>    \def\mainfontsize{20pt}
>>    \definebodyfontenvironment [\mainfontsize]
>>
>>    \starttext
>>      TEXT
>>      \switchtobodyfont [\mainfontsize]
>>      TEXT 20pt
>>    \stoptext
>>
>>  See this thread for some background info:
>>
>>    http://www.mail-archive.com/ntg-context@ntg.nl/msg63901.html
>
> Sorry for the self-reply, but I just remembered that I already
> wikified the topic:
>
>   http://wiki.contextgarden.net/unexpected_behavior#Treacherous_Dimensions
>

Thanks, Philipp!
Now I realized that before the first use of "switchtobodyfont" I need to write "definebodyfontenvironment". In this case, everything is fine.
I also found another way without definebodyfontenvironment:

\definemeasure[AAA][20.123pt]
\newdimen\BBB \BBB=25.127pt

\starttext
TEXT

% ok
\normalizebodyfontsize\normalizedAAA{\measure{AAA}}
\switchtobodyfont[\normalizedAAA]
AAA \normalizedAAA

% ok
\normalizebodyfontsize\normalizedBBB\BBB
\switchtobodyfont[\normalizedBBB]
BBB \normalizedBBB

\stoptext

Is this code correct? Or it's better for some reason using "definebodyfontenvironment"?
--
Dmitriy
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___________________________________________________________________________________