Oliver Buerschaper wrote:
Sorry I missed this thread earlier. The default rule thickness in is the eight font parameter of the fonts in math family 3. A bare context file with the standard 12pt fonts gives the value 0.47998pt. You can get the value via :
\edef\defautlrulethickness{\the\fontdimen8\textfont3}
Afaik, in all math setups three fonts in math family 3 are the same actual font so just the one value will do. But the actual value will definately vary a bit depending on the font setup. For example, palatino 12pt has 0.708pt.
OK. However, this doesn't seem to scale properly within the same font … try the following:
--- \edef\defaultrulethickness{\the\fontdimen8\textfont3}
That is because of the \edef. Changing to a plain \def should help: \def\defaultrulethickness{\the\fontdimen8\textfont3\relax} (the \relax is now needed because there could be a digit following). Best wishes, Taco