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add tex_annotation!() #43

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add tex_annotation!() #43

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ceb51c6
add `tex_annotation!()`
Moelf Feb 3, 2023
e3e046c
Merge branch 'master' into master
Moelf Jun 24, 2024
f12a46f
Remove old CairoMakie code
asinghvi17 Jun 24, 2024
301a7ee
Use TeX directly in tex_annotation instead of rasterizing
asinghvi17 Jun 24, 2024
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2 changes: 2 additions & 0 deletions src/MakieTeX.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -53,6 +53,8 @@ export LTeX
export LaTeXStrings, LaTeXString, latexstring, @L_str
export Typstry, TypstString, @typst_str

export tex_annotation!

"Try to write to `engine` and see what happens"
function try_tex_engine(engine::Cmd)
try
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34 changes: 34 additions & 0 deletions src/recipe.jl
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Expand Up @@ -143,3 +143,37 @@ function Makie.plot!(plot::TeXImg)
markerspace = plot.markerspace,
)
end

"""
tex_annotation!(axis::Axis, lstring, x, y; mainfont = nothing, mathfont = nothing, scale_factor=1)

Add TeX annotation to an existing Makie Axis. Under the hood, it does a few things:

1. via `mathspec` LaTeX package, we set the `mainfont` and `mathfont`
2. Render it using `tectonic_jll` and convert to an image matrix.
3. call `Makie.scatter!` and using the image as `marker`, scale the image by `scale_factor` while preserving aspec ratio.

!!! note
You can use `\textcolor` from `xcolor` inside the latex string.
"""
function tex_annotation!(axis::Axis, lstring, x, y; mainfont = nothing, mathfont = nothing, scale_factor=1)
texdoc = TeXDocument(
String(lstring), true;
requires = "\\RequirePackage{luatex85}",
preamble = """
\\usepackage{amsmath, xcolor}
\\usepackage{mathspec}
\\pagestyle{empty}
$(isnothing(mainfont) ? "" :
"\\setmainfont{$mainfont}[Scale=MatchLowercase, Ligatures=TeX]"
)
$(isnothing(mathfont) ? "" :
"\\setmathfont(Digits,Latin)[Scale=MatchLowercase]{$mathfont}"
)
Comment on lines +167 to +172
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Whoa cool! I didn't know you could do that.

Do \bf, \it, \sc etc work correctly with this?

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@Moelf Moelf Feb 4, 2023 •
edited
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probably, we can probably have a comprehensive test of making 2x2x2 different math on the same canvase as a sanity check

two caveats:

  • I can't find the default font's name
  • I'm yet to fully understand how the exactly interaction between multiple set*font work

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The default font in Makie is "TeX Gyre Heros Makie", it's in the assets folder of Makie (I think).
I guess we should set the default math font to also be whichever math font relates to TeX Gyre Heros? This is what I was trying to do earlier, in building up a set of known font families for which we have good math fonts.

""",
class = "standalone",
classoptions = "preview, tightpage, 12pt"
)
tex = CachedTeX(texdoc)
scatter!(axis, x, y; tex, markersize=tex.dims .* scale_factor)
end
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