Re: Some Metapost Problems

["Mojca Miklavec" <mojca.miklavec.lists@gmail.com>]

On Tue, Oct 7, 2008 at 9:54 PM, Wolfgang Werners-Lucchini wrote:
> Hallo Mojca,
>
>> > 1. The labels of the first graphic are xscaled (randomly)
>>
>> They are not scaled randomly :P
>> They inherit the sizes from the second graphic.
>>
>> See
>>
>> http://archive.contextgarden.net/message/20061204.102337.280a6589.en
>> .html
>
> strange
>
>> You need
>>     \runMPgraphicstrue
>
> Yes, this helps!
>
> But what are the sideeffects? When is the opposite needed?

I don't know. Ask Hans or Taco. It might have to do with write18
(perhaps when it's desabled, one of them doesn't work, but I don't
really know).

>> These settings are used exclusevely for btex ... etex and textext.
>> \sometxt uses the surounding font.
>>
>> There could be some settings for fonts in metapost graphics, but
>> I'm not aware of any.
>> However, it's rather easy to either:
>>
>> a) write your own metapost macro for placing labels that scales
>> down
>> everything by 20%
>>     label.top(myscaled(\sometxt{Samstag}), z0) ;
>> where
>>     vardef myscaled(expr t) = (t scaled 0.8) enddef;
>
> This works.
>
>> b) write your own handle
>>     \definetextext[scaled]{\switchtobodyfont[8pt]\strut}
>> and then
>>     label.top(\sometxt[scaled]{Samstag}, z0) ;
>
> This works, too. Where is this documented?

The \sometxt myway (http://wiki.contextgarden.net/My_Way).

>> c) write your own macro or put some font size switch in front of
>> the graphic (I did not try it out)
>> \long\def\startuseMPgraphicwithscaledtext#1\stopuseMPgraphicwithscal
>> edtext
>> {\bgroup\switchtobodyfont[8pt]\startuseMPgraphic#1\stopuseMPgraphic\
>> egroup}
>
> This is not working.
> Even an explizit
>
> {\switchtobodyfont[8pt]
> \startuseMPgraphic
>
> <mp-code>
>
> \stopuseMPgraphic
> }
>
> didn't work.

Try:

\switchtobodyfont[50pt]
\startMPcode
draw \sometxt{abc};
\stopMPcode

Maybe the labels are typeset when you \useMPgraphic, not when you
define it (but better have the sizes kept in sync).

Mojca
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