use dvisvgm for latex equation export

[andreyorst]

Hello. I'm trying to set up latex exporting to svg via dvisvgm instead of relying on mathjax. Currently if I set this option at the top of my org mode file I see exported images in resulting markdown files in this facion:

Org file:

#+options: tex:dvisvgm
... text ...
\[ a + b \]
... text ...

Markdown:

... text ...
<object type="image/svg+xml" data=".ltximg/blog_bbacb5f50664161c1c001269e2c3c77fd5202d24.svg" class="org-svg">
Sorry, your browser does not support SVG.</object>
... text ...

Which will not work because the path to the image is wrong after hugo builts the page.

There's an option for that org-preview-latex-image-directory but if I set it to something like ./static/ltximg it still doesn't work because of wrong path.

Is it possible to set the correct path or configure ox-latex in a way that it will copy images somewhere?

[kaushalmodi]

I just realized that I forgot to reply to this thread after reading the issue. This is not being ignored.

I'll see if I can get time to implement this feature in next 2 weeks. PR's are always welcome.

In the meanwhile, would the Mathjax solution work for you?

[andreyorst]

I would like to avoid using JavaScript as I disable it on most sites, so mathjax is not an option for me. dvisvgm is good solution for me because orgmode supports it natively for inline previews of latex equations so it seem natural to support it in ox-hugo. Same goes for dvipng, I don't use it, but seems that general process can be shared between those, as they both can be used in previews. Currently I manually place generated images to static directory.

…

[kaushalmodi]

@andreyorst Hello! I am replying to this thread after a while. If you are still using ox-hugo, try out the latest commit on the main branch and let me know if it works as expected for you.

It worked well for me from my local testing.

[andreyorst]

Just tested and it seems to work!