Bug#329331: [Pkg-lyx-devel] Bug#329331: Really???

[Georg Baum]

Am Montag 23 April 2007 22:32 schrieb Marco Herrn:
> Hi,
>
> On Sun, Apr 22, 2007 at 05:31:10PM +0200, Georg Baum wrote:
> > Since LyX 1.4.0 it is not possible anymore to omit the extension in
> > LyX, so this bug is no longer applicable and should have been closed
> > with the first 1.4.x release in debian. LyX will omit the extension for
> > LaTeX export if that is possible.
>
> Uhm, maybe you misunderstood the bugreport. It is _not_ related to LyX
> exporting LaTeX files, but only to the image preview inside LyX.

I understood that. Therefore I wrote that this report is no longer 
applicable.

> Since LaTeX doesn't need the extension, I would prefer that LyX also
> doesn't need it.

As I explained already this is not possible anymore.

> Sven Hoexter wrote:
> > Sounds like the behaviour upstream prefers is the contradiction of what
> > Marco would like to have.
> >
> > Is there a way we can agree to close this bug? Like a technical reason
> > why it's not a good idea to implement the wished behaviour?
>
> Well, if this is the case, then this bug can be closed. But I am not yet
> sure that we are talking about the same problem.
>
> Georg Baum wrote:
> > I ask another question: Is there any reason why you would _not_ want to
> > specify exactly which file you want to include?
>
> The reason I want it, is that I need to output my document as PDF and PS,
> therefore are having the images in EPS and PDF format. Since LaTeX and
> pdfLaTeX cannot use the image format of the other, I need a way to
> specify both (by omitting the extension).

No, you don't need to do that. As I wrote LyX does not have the limitations 
of LaTeX.

> > LyX does not have the
> > limitations of LaTeX. It works out of the box with many image formats,
> > and you can make it work with any image format you like by specifying
> > additional converters.
>
> I did not know that. What means "LyX works with many image formats"? Am I
> able to create only an EPS file and LyX handles the conversion to PDF if
> necessary?

Exactly. In fact it is not LyX that converts the images, but it knows about 
helper applications. Look at the file format and converter sections in the 
preferences dialog if you want to see which programs are used. The 
documenation (I believe the customization guide) also explains this in more 
detail.

> > Since there is always exactly one "original" image
> > the recommended practice is to use that and let LyX take care of the
> > conversion to the needed format.
>
> That would be fine. It would be the preferred way for me. But how does
> that work together with LaTeX? Does LyX create all the necessary formats
> by converting and these files can also be used after an export of the
> document to LaTeX?

Yes. You have two export formats that you can use: "LaTeX (plain)" and 
"LaTeX (pdflatex)". The first will produce eps files, the second will 
produce pdf files for vector graphics and png for bitmap graphics. If you 
need both, just export to both formats, but be aware that the 
generated .tex file can vary slightly.

BTW, is there any special reason why you want to run latex and pdflatex 
manually? Unless that is the case I suggest to export directly to pdf or 
ps, then LyX will also take care of running latex, bibtex and makedindex.


Georg