Re: :scale option in org-format-latex-options

[David Maus <dmaus@ictsoc.de>]

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Hi Dan,

Dan Davison wrote:
>When creating png images of latex fragments in org-create-formula-image,
>the :scale option in org-format-latex-options is not currently honoured
>(it's commented out). My dvipng documentation says

>       -x num

>           Set the x magnification ratio to num/1000. Overrides the
>           magnification specified in the DVI file.  Must be between 10
>           and 100000.  It is recommended that you use standard magstep
>           values (1095, 1200, 1440, 1728, 2074, 2488, 2986, and so on)
>           to help reduce the total number of PK files generated.  num
>           may be a real number, not an integer, for increased
>           precision.

>I don't know what a magstep is, let alone a PK file, but it seems to
>suggest something like the patch below. Is there any reason not to make
>a change like this?

I see two problems: First we should find out what "x magnification"
and "magstep" actually is and why the manual suggests using these
"strange" standard numbers.  And second: At least dvipng shipped with
debian testing

,----
| This is dvipng 1.12 Copyright 2002-2008 Jan-Ake Larsson
| dvipng 1.12
| kpathsea version 5.0.0
| Compiled with Freetype 2.3.11
| Using libft 2.3.11
| Using t1lib 5.1.2
`----

does not have a -y option.

Regards
 -- David
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