Re: [Bug-AUCTeX] 11.86; png images too large under latex beamer

[Jacques Jayez]

This indeed accounts for the problem I had. Declaring dvips is risky in 
conjunction with preview. Why I get something whereas you get nothing remains 
somewhat mysterious. Anyway, I thank you for your help. I made a minimal 
example for the benefit of those who'd want to try dvips and see what happens.

\documentclass[dvips]{article}

\begin{document}

$A^2$

\end{document}

Starting preview on $A^2$, I obtain of good image of A squared but with a lot 
of white space around. Suppressing dvips in the preamble gives me back a normal 
preview image.

Jacques Jayez

> 
> * Jacques Jayez (2010-10-24) writes:
> 
>> Your demand to simplify the file led to some progress: I noticed I had
>> a dvips declaration at the upper level:
>> \documentclass[...,dvips]{beamer}.  It seems that the symptom
>> disappears when I suppress the call to dvips. You can try reproduce
>> the alternation with the following simplified demo.tex, first running
>> preview with dvips (=> problem for me) and next without it (normal
>> behavior).  I must confess that I don't remember why I put a call to
>> dvips in the file in the first place ...  Anyway, I don't understand
>> what kind of interaction we have here (if I'm not mistaken in
>> supposing that there is an interaction at all).
> 
> In my case, executing `C-c C-p C-d' with the file opened in Emacs will
> just yield "LaTeX found no preview images".  So the example does not
> work here.  Perhaps you have some additional customizations.
> 
> Anyway, regarding the `dvips' option, the following text taken from the
> preview-latex manual might explain some things:
> 
> ,----[ (info "(preview-latex)Package options") ]
> | `dvips'
> |      If this option is specified as a class option or to other
> |      packages, several packages pass things like page size information
> |      to Dvips, or cause crop marks or draft messages written on pages.
> |      This seriously hampers the usability of previews.  If this option
> |      is specified, the changes will be undone if possible.
> `----
> 
> -- 
> Ralf