[XeTeX] sporadic shifted underbrace error
Daniel Greenhoe
dgreenhoe at gmail.com
Wed Feb 6 03:32:08 CET 2013
For some time now I have been having *sporadic* problems with
underbraces being shifted to the right by maybe 15mm or so.
The problem is sporadic---it appears sometimes, but on the next
compile may well have disappeared. The document I am currently working
on contains several hundred pages. I can try to put together a minimal
example...but that may be of limited use since it may be difficult to
get the problem to show itself when I want it to show itself.
So, before I do that, might anyone have an idea of what might be the problem?
There is a screen capture of a shift. The right underbrace has been
shifted far to the right. It should be like the underbrace on the
left.
Here is my current underbrace macro:
\newcommand{\mcom}[3][c]{\ensuremath{%
\begin{array}[t]{#1}%
\underbrace{#2}\\%
\text{\addfontfeatures{Color=mcom}\scriptsize{#3}}%
\end{array}%
}}%
The color mcom is simply defined liked this:
\definecolor{mcom} {cmyk}{0,0,0,1}
The \mcom macro can be used something like this:
\[ \mcom{\sin^2(x)+\cos^2(x)=1}{this is a trig. identity} \]
I am compiling with XeLaTeX from a TeXlive distribution.
Any ideas?
Many thanks in advance,
Dan
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