[OS X TeX] SyncTeX and Beamer
P.Vamos at exeter.ac.uk
Mon Sep 8 12:05:19 CEST 2008
Thanks to all who offered/pointed explanations and and background on
why SyncTeX fails on a Beamer document. In particular
At 17:02 +0200 6/9/08, Bruno Voisin wrote:
>TeXShop uses actually a combination of SyncTeX and PDF search, even
>in SyncTeX mode. In I understood correctly off-list explanations
>from Dick Koch, SyncTeX returns a line in source or preview, and
>TeXShop adds PDF search on top of this to find a more precise spot
>within this line.
>- TeXShop adds the Mac-only PDF search to SyncTeX and highlights
>bits of text or maths in the lines of source or preview.
At 09:30 -0500 6/9/08, Herbert Schulz wrote:
>By default the SyncTeX option falls back to the Search when synctex
>fails. You can force TeXShop to only use synctex. Looking under
>Help, searching for ``hidden preference items'' and going to the
>bottom of the page I get
>``TeXShop now supports SyncTeX. See the synchronization section in
>Advanced Help for details. If synctex fails, TeXShop falls back on
>the Search synchronization method. For users who would like to
>experiment with synctex by itself, there is a hidden preference to
>turn off this fallback behavior:
>defaults write TeXShop SyncTeXOnly YES
>By default, this preference has the value NO.''
I cannot see in what sense this can be true: for a Beamer file
typeset with SynTex, Preview -> source synchronization essentially
fails but if done with PDF search it works as expected so with
SyncTeX PDF search adds nothing, i.e.SyncTeX mode is _not_ an amalgam
of these two.
I did not set any hidden preferences. Herb, you yourself saw how
SyncTeX performs with Beamer, now try with PDF search to see that if
Synctex fails, TeXShop _does not fall back_ on the Search
At 14:40 +0100 6/9/08, Jonathan Kew wrote:
>See "SyncTeX and Beamer" at <http://itexmac.sourceforge.net/SyncTeX.html>.
Thank you, went to see. Cannot claim to understand fully but if I get
the sense of the explanation right, then the problem may not be
restricted to Beamer only. For example, just the other day I was
looking at the fancyvrb package and it seems to me that if one uses
the \SaveVerb \UseVerb pair (see TLC 2nd ed pages 165-167) then
SyncTeX will run into the same problem. While this may be a rare and
esoteric example nevertheless it shows that there might well be quite
a number of environments, apart from Beamer's frame, which SyncTeX
>Note that iTeXMac2 and TeXShop can use text search *in addition to*
>the synctex data, and this may enable them to do better,
see above to Bruno & Herb.
> but the results could depend on the particular document (how
>searchable the content is, what fonts are used, etc).
OK, this may be the operative word here, this "*in addition to*" may
depend on document class and environment. What we can say, based on
the Beamer example, is that this "*in addition to*", if it works at
all, may fail in certain circumstances. We need here more experiences
and/or further elucidation from the developers and/or info on the new
version of SyncTeX.
For me as a user, the situation is that I use a lot of Beamer files
for my lectures. To me, the claimed advantages of SyncTeX over search
is not worth the additional hassle of changing TS preferences every
time I change between a Beamer and an `ordinary' LaTeX file (+ the
added clutter of an extra auxiliary file); although I must admit that
I have not experimented enough with with SyncTeX on `ordinary'
files. Perhaps someone could do a comparative evaluation of SyncTeX v
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