On Oct 31, 2006, at 9:55 AM, Paul A. Rubin wrote:
Jens Noeckel wrote:
On Oct 31, 2006, at 4:06 AM, Enrico Forestieri wrote:
Paul A. Rubin <[EMAIL PROTECTED]> writes:
I'm posting this vicariously, as it were (not being a Mac user
myself),
so please bear with me. Someone else is having a problem with LyX
1.4.3/Mac OSX/teTeX (installed via fink). At least part of the
problem
seems to be caused by instant preview. With IP on and math
insets in
the document, misadventures occur, and in particular the temp
directory
shows 0lyxpreview.tex, 0lyxpreview.aux, 0lyxpreview.pdf but not
0lyxpreview.dvi.
The user seems to think that /sw/bin/latex is symlinked (or hard
linked,
I'm not sure) to pdflatex. I'm guessing from the symptoms above
that
when the Python script that compiles the previews runs what it
thinks is
latex, it's actually running pdflatex (or pdfetex with the
format set to
pdflatex, or something like that). Hence no DVI output, and the
DVI to
PNG conversion unsurprisingly breaks.
Does this resonate with any Mac users? Is there something
installation-wise that could get 'latex' to actually run latex
(as in
producing DVI output without additional tweaking)?
Hi Paul,
I don't think that the sym- or hardlink to pdftex is the culprit
here.
In most modern TeX implementations the engine is pdftex, anyway.
If you
have MikTeX 2.5 try "latex --version" and see that you are really
using
pdfetex. The engine looks at the name it was invoked and produces
output accordingly. So, symlinking latex to pdftex but invoking
it as
"latex" gives you dvi output.
Instead, make sure that the command used by LyX to invoke latex
is really
"latex" and not "pdflatex".
Yes - in fact, you can invoke "latex -> dvi" conversion of a file
file.tex by typing, e.g.,
pdflatex -progname=latex file
pdfetex -progname=latex file
If it's not the preamble that's causing the problem, one might
want to add that option -progname=latex to the script (this will
only work if there's nothing in the preamble that overrides this
progname choice). I think this once worked for someone when I
suggested it on the MacTex mailing list... although it really
should be handled automatically, as Enrico said.
So before doing that, maybe one other suggestion: see (with ls -
al) if there are any texmf configuration files in your home
directory (.texmf-config etc) and move them out of the way.
Finally, you could also specify
pdflatex -output-format=dvi
to get dvi output. This is not quite equivalent (because it may
load different font files) to the -progname option, but it works
for me, too.
Jens
Thanks to both Enrico and Jens for the replies.
Jens, I noticed in a bugzilla posting that you have LyX running
under OS/X with teTeX installed via fink (same setup as Andrea, the
original poster here). Does instant preview work for you and, if
so, did you have to tweak anything?
AFAIK when LyX exports a math inset to 0lyxpreview.tex for
conversion, it does not pass along preamble entries from the
original document. This can cause an occasional problem (for
instance, when you are loading a funky character set in the doc's
preamble), but it does not cause problems with routine math insets
under Windows (and I'm guessing the same holds for Linux). So
modifying the document preamble is unlikely to resolve the preview
problem.
If preview works for you, then I need to focus on how your
configuration differs from Andrea's. If IP doesn't work for you,
then we should probably enter a bug report.
Paul,
instant preview does work for me. Maybe it would be good if you could
forward an example LyX file so I can try that. Perhaps he's using
some math glyph that's known to LyX' mathedit but requires an
additional style file for typesetting in LaTeX? That's now really
getting very speculative, though.
Jens
