* Bug: Latex preview overlay scaling not consistent across PPI
@ 2016-11-30 16:35 Scott Otterson
2016-11-30 21:05 ` Nicolas Goaziou
0 siblings, 1 reply; 4+ messages in thread
From: Scott Otterson @ 2016-11-30 16:35 UTC (permalink / raw)
To: Emacs-orgmode@gnu.org
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The size of the latex preview overlay scaling is inconsistent across
screens with different pixel densities.
I've set my customization to use dvipng for the latex previews I see when I
type C-c C-x C-l. Dvipng is customized as follows:
[image: Inline image 1]
The "Value" is set to (1.0 . 1.0), which I would think means that the font
size in the preview overlay is scaled the same as the font size org
buffer's normal text.
This is more or less true for a Windows 7 machine connected to a 24",
1920x1080 pixel monitor:
[image: Inline image 2]
However, on a Windows 10 machine with a 12.3", 2736x1824 pixel monitor, the
same customization looks like this:
[image: Inline image 3]
On the second computer (a Surface Pro 4) the previews are tiny because the
screen has a much higher pixel density; the normal text is scaled
appropriately but the overlays aren't scaled to match.
I'd like keep the same .emacs file across all the machines I have to use,
so it would be best if the preview scaling was consistent.
Possibly the overlay scaling calculation is done using the function
window-text-width without the *pixelwise *argument, which would return a
width in characters. To avoid changing the calculation too much, you could
use window-max-chars-per-line, which considers font size and some things
that would be missed by window-text-width even if *pixelwise* was used.
-- my setup
------------------------------------------------------------------------------------------
Emacs : GNU Emacs 25.1.1 (i686-w64-mingw32)
of 2016-09-17
Package: Org mode version 9.0.1 (9.0.1-elpaplus @
c:/Users/sotterson/home/.emacs.d/elpa/org-plus-contrib-20161118/)
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Bug: Latex preview overlay scaling not consistent across PPI
2016-11-30 16:35 Bug: Latex preview overlay scaling not consistent across PPI Scott Otterson
@ 2016-11-30 21:05 ` Nicolas Goaziou
2016-12-01 6:31 ` Scott Otterson
0 siblings, 1 reply; 4+ messages in thread
From: Nicolas Goaziou @ 2016-11-30 21:05 UTC (permalink / raw)
To: Scott Otterson; +Cc: Emacs-orgmode@gnu.org
Hello,
Scott Otterson <scotto@sharpleaf.org> writes:
> The size of the latex preview overlay scaling is inconsistent across
> screens with different pixel densities.
>
> I've set my customization to use dvipng for the latex previews I see when I
> type C-c C-x C-l. Dvipng is customized as follows:
>
> [image: Inline image 1]
>
> The "Value" is set to (1.0 . 1.0), which I would think means that the font
> size in the preview overlay is scaled the same as the font size org
> buffer's normal text.
>
> This is more or less true for a Windows 7 machine connected to a 24",
> 1920x1080 pixel monitor:
>
> [image: Inline image 2]
>
> However, on a Windows 10 machine with a 12.3", 2736x1824 pixel monitor, the
> same customization looks like this:
>
> [image: Inline image 3]
>
> On the second computer (a Surface Pro 4) the previews are tiny because the
> screen has a much higher pixel density; the normal text is scaled
> appropriately but the overlays aren't scaled to match.
I made a change to how dpi is computed in `org-create-formula-image'.
Could you test it and report if it fixes your issue ?
Regards,
--
Nicolas Goaziou
^ permalink raw reply [flat|nested] 4+ messages in thread
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2016-11-30 16:35 Bug: Latex preview overlay scaling not consistent across PPI Scott Otterson
2016-11-30 21:05 ` Nicolas Goaziou
2016-12-01 6:31 ` Scott Otterson
2016-12-01 19:45 ` Nicolas Goaziou
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