Re: Patch to allow adjusting latex fragment display scale factor

[Matt Huszagh]

Hi,

Bringing this back up. Ihor, I've added you to the thread directly
(hope that's ok).

Any thoughts? I have not yet updated it for the most recent changes to
main, but I can do that.

Matt

On Sun, Oct 10, 2021 at 9:40 PM Matt Huszagh <huszaghmatt@gmail.com> wrote:
>
> Matt Huszagh <huszaghmatt@gmail.com> writes:
>
> > I've created a patch to allow adjusting the scale factor used for inline
> > latex image fragments. This involves a customizable variable that can
> > either be set to a scale factor (defaults to 1.0) or a function that
> > evaluates to a scale factor.
> >
> > This feature is in addition to the existing scale factor adjustment
> > capability provided by `org-preview-latex-process-alist' through
> > `:image-size-adjust'. Wherease image-size-adjust performs scaling at the
> > time of image generation, the new change performs it during
> > display. This can lead to significant time saving and suffers no loss of
> > quality for vector graphics.
> >
> > As an example of use, I have several functions for changing frame
> > scaling. I've added
> >
> > (if (eq major-mode 'org-mode)
> >       (progn
> >         (org-clear-latex-preview)
> >         ;; 16 corresponds to the C-u C-u arg prefix.
> >         (org-latex-preview 16)))
> >
> > to these functions so that changing the frame scaling also
> > correspondingly changes the latex preview/fragment scaling to match the
> > new size of the surrounding text. Because of this new feature, this
> > change is effectively instantaneous for reasonably numbers of
> > overlays. Obviously, something similar could be done for
> > `text-scale-adjust' (e.g., through `advice-add').
> >
> > Feedback appreciated.
>
> Apologies, the patch I sent is slightly wrong. The line numbers also
> reflect an earlier patch I made. Here is a corrected version.
>