Hi,
Sorry to insist but I cannot fix this problem.
Thanks for any help.
Fabrice

Le sam. 25 avr. 2020 à 00:13, Fabrice Couvreur <fabrice1.couvreur@gmail.com>
a écrit :

> Hi,
> This macro was written by Otared and it works well unless I change the
> size of the font (see the second graph).
> How to correct this problem ?
> Thanks for your help.
> Fabrice
>
> %%%% begin example
>
> \usemodule[pgfplots]
> \pgfplotsset{compat=newest}
>
> \define[2]\cscript{\start\switchtobodyfont[xitsbidi]\m{{\mathscript{#1}}_{#2}}\stop}
>
> \starttext
>
>  \startmidaligned
>  \starttikzpicture
>  \startaxis
>    \addplot {x};
>    \node[above left] at (2,2) {\cscript{C}{f}};
>    \stopaxis
>  \stoptikzpicture
>  \stopmidaligned
>  \blank
>  \startmidaligned
>   \switchtobodyfont[9pt]
>   \starttikzpicture
>   \startaxis
>    \addplot {x};
>    \node[above left] at (2,2) {\cscript{C}{f}};
>    \stopaxis
>  \stoptikzpicture
>  \stopmidaligned
>
> \stoptext
>
> %%%%end example
>