Julia quarto documents render plots as svg, when both PDF and html formats specified in project file

[jeremiahpslewis]

This causes the latex PDF build to fail as it doesn't support SVG.

Project file snippet:

format:
  html:
    theme: cosmo
  pdf:
    toc: true
    number-sections: true
    colorlinks: true

Workaround, with parameters and running things twice is here: https://github.com/jeremiahpslewis/quarto-reproducible-gh-actions/blob/89fe98a92cc36fbfbc68b632f17a71e4de8d767f/.github/workflows/quarto.yml#L29

[jjallaire]

I haven't been able to reproduce this (in my tests PDFs use pngs which is the expected behavior). Note that we did make a change to Julia figure handling a few weeks ago (c6e98a3). Is it possible you are running a slightly older version of Quarto?

[jjallaire]

I am able to repro on Ubuntu. More soon.

[jjallaire]

It looks like the problem is that we have a dependency on the Plots module (in order to set the default figure format). After I did Pkg.add("Plots") things worked as expected. I will update our examples to call using Plots so that the error message in this case is more clear.

[jeremiahpslewis]

Can confirm that adding Plots.jl to the Project.toml fixed the issue. Thanks!

One note, due to the fact that the Julia plots are rendered as PNG's for the PDF, they look relatively pixellated in comparison to Python and R. Any thoughts about bumping up the default DPI a bit? (not sure that this would help)

quarto-cli/src/resources/jupyter/lang/julia/setup.jl

Line 26 in 9367172

fig_dpi = 96

Example PDF: https://jeremiahpslewis.github.io/quarto-reproducible-gh-actions/quarto-and-github-actions.pdf

Julia:

Python:

[jjallaire]

Unfortunately when you bump up the DPI the legend text gets proportionally smaller. Would love it if changes could be made to Plots.jl to mitigate this!

[jeremiahpslewis]

Linking the IJulia PDF issue which would fix this here for future info: JuliaLang/IJulia.jl#1035