[metafun] MPenvironment / font switching

[metafun] MPenvironment / font switching

[Philipp Gesang]

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Hi all,

I’m struggling with the font used in metapost. The only way to
actually change it appears to be enclosing the mp graphic in two
statements of \setupbodyfont[…] -- which I need to avoid. In the
following example, the background text should be typeset (drawn)
as lm sans, whereas the main font should be left untouched
(serif).

·································································

\startMPenvironment %[global]
  \switchtobodyfont[sans]
  %\setupbodyfont[sans]
\stopMPenvironment

%\start\setupbodyfont[sans]
\startuseMPgraphic{bg}
  verbatimtex \setupbodyfont[sans] etex ;
  draw btex I wanna get rid of those serifs! etex
    xysized (21cm, 5cm) withcolor blue ;
\stopuseMPgraphic

\definelayer[bg][x=0,y=0,width=\paperwidth,height=\paperheight]
\setlayer[bg]{%
  %\setupbodyfont[sans]
  \useMPgraphic{bg}
}
\setupbackgrounds[paper][background=bg]
\setupbackgrounds[state=repeat]
%\stop

\starttext
\dorecurse{42}{I’d really like to keep my serifs! }
\stoptext

·································································

Wrapping the mp code inside a group is fatal.
\[start|stop]MPenvironment doesn’t seem to have an effect at all
unless called with the “global” flag -- in which case it will
change the main body font as well. Also, inside mp’s
“[verbatim|b]tex ...  etex” font switches refuse to work.

I’m really puzzled here, any hints? Thanks in advance
Philipp


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Re: [metafun] MPenvironment / font switching

[Wolfgang Schuster]

Am 09.06.2011 um 23:20 schrieb Philipp Gesang:

> Hi all,
> 
> I’m struggling with the font used in metapost. The only way to
> actually change it appears to be enclosing the mp graphic in two
> statements of \setupbodyfont[…] -- which I need to avoid. In the
> following example, the background text should be typeset (drawn)
> as lm sans, whereas the main font should be left untouched
> (serif).
> 
> ·································································
> 
> \startMPenvironment %[global]
>  \switchtobodyfont[sans]
>  %\setupbodyfont[sans]
> \stopMPenvironment
> 
> %\start\setupbodyfont[sans]
> \startuseMPgraphic{bg}
>  verbatimtex \setupbodyfont[sans] etex ;
>  draw btex I wanna get rid of those serifs! etex
>    xysized (21cm, 5cm) withcolor blue ;
> \stopuseMPgraphic
> 
> \definelayer[bg][x=0,y=0,width=\paperwidth,height=\paperheight]
> \setlayer[bg]{%
>  %\setupbodyfont[sans]
>  \useMPgraphic{bg}
> }
> \setupbackgrounds[paper][background=bg]
> \setupbackgrounds[state=repeat]
> %\stop
> 
> \starttext
> \dorecurse{42}{I’d really like to keep my serifs! }
> \stoptext
> 
> ·································································
> 
> Wrapping the mp code inside a group is fatal.
> \[start|stop]MPenvironment doesn’t seem to have an effect at all
> unless called with the “global” flag -- in which case it will
> change the main body font as well. Also, inside mp’s
> “[verbatim|b]tex ...  etex” font switches refuse to work.
> 
> I’m really puzzled here, any hints? Thanks in advance

ConTeXt postpones fontloading till \starttext, as you won’t get any
text for elements (e.g. layers) which are set before the font was loaded
the typewriter font is used as fallback and this is what you get.

Add “\setupbodyfont[modern]” before your layer settings and switch
the style in the MP graphic with “… btex \ss I wanna get rid … etex …”.

Wolfgang


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___________________________________________________________________________________

Re: [metafun] MPenvironment / font switching

[Philipp Gesang]

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On 2011-06-09 <23:31:49>, Wolfgang Schuster wrote:
> 
> Am 09.06.2011 um 23:20 schrieb Philipp Gesang:

<snip/>

> > ·································································
> > 
> > \startMPenvironment %[global]
> >  \switchtobodyfont[sans]
> >  %\setupbodyfont[sans]
> > \stopMPenvironment
> > 
> > %\start\setupbodyfont[sans]
> > \startuseMPgraphic{bg}
> >  verbatimtex \setupbodyfont[sans] etex ;
> >  draw btex I wanna get rid of those serifs! etex
> >    xysized (21cm, 5cm) withcolor blue ;
> > \stopuseMPgraphic
> > 
> > \definelayer[bg][x=0,y=0,width=\paperwidth,height=\paperheight]
> > \setlayer[bg]{%
> >  %\setupbodyfont[sans]
> >  \useMPgraphic{bg}
> > }
> > \setupbackgrounds[paper][background=bg]
> > \setupbackgrounds[state=repeat]
> > %\stop
> > 
> > \starttext
> > \dorecurse{42}{I’d really like to keep my serifs! }
> > \stoptext
> > 
> > ·································································

<snip/>

> ConTeXt postpones fontloading till \starttext, as you won’t get any
> text for elements (e.g. layers) which are set before the font was loaded
> the typewriter font is used as fallback and this is what you get.
> 
> Add “\setupbodyfont[modern]” before your layer settings and switch
> the style in the MP graphic with “… btex \ss I wanna get rid … etex …”.

Thanks a lot, this does indeed achieve what I intended.
Philipp


> Wolfgang
> 
> 
> ___________________________________________________________________________________
> 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
> ___________________________________________________________________________________

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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: [metafun] MPenvironment / font switching

[Mojca Miklavec]

On Thu, Jun 9, 2011 at 23:20, Philipp Gesang wrote:
> Hi all,
>
> I’m struggling with the font used in metapost. The only way to
> actually change it appears to be enclosing the mp graphic in two
> statements of \setupbodyfont[…] -- which I need to avoid. In the
> following example, the background text should be typeset (drawn)
> as lm sans, whereas the main font should be left untouched
> (serif).

An alternative to Wolfgang's answer when you want to use complex font
definitions (or other complex commands) is to use \sometxt.

\usetypescript[iwona]
\definetextext[myfont]{\switchtobodyfont[iwona,ss,30pt]\bi}

\starttext
\startuseMPgraphic{bg}
 draw \sometxt[myfont]{I wanna get rid of those serifs!} withcolor blue ;
\stopuseMPgraphic

\useMPgraphic{bg}
\stoptext

Mojca
___________________________________________________________________________________
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
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archive  : http://foundry.supelec.fr/projects/contextrev/
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___________________________________________________________________________________