More in depth LaTeX fragment render benchmarking
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@ -564,12 +564,15 @@ We also like ~org-fragtog~, and that wants a hook.
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#+END_SRC
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***** LaTeX Fragments
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It's nice to customise the look of LaTeX fragments so they fit better in the
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text. Let's start by adding a sans font. \(\sqrt{\beta^2+3}-\sum_{\phi=1}^\infty \frac{x^\phi-1}{\Gamma(a)}\)
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text --- like this \(\sqrt{\beta^2+3}-\sum_{\phi=1}^\infty \frac{x^\phi-1}{\Gamma(a)}\). Let's start by adding a sans font.
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#+BEGIN_SRC emacs-lisp
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(setq org-format-latex-header "\\documentclass{article}
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\\usepackage[usenames]{color}
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[PACKAGES]
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[DEFAULT-PACKAGES]
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\\usepackage[T1]{fontenc}
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\\usepackage{mathtools}
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\\usepackage{textcomp,amssymb}
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\\pagestyle{empty} % do not remove
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% The settings below are copied from fullpage.sty
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\\setlength{\\textwidth}{\\paperwidth}
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@ -589,19 +592,35 @@ text. Let's start by adding a sans font. \(\sqrt{\beta^2+3}-\sum_{\phi=1}^\infty
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\\usepackage{arevmath}")
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#+END_SRC
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We can either render from a ~dvi~ or ~pdf~ file, so let's benchmark ~latex~ and
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~pdflatex~.
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| ~latex~ time | ~pdflatex~ time |
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|------------+---------------|
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| 135±2 ms | 215±3 ms |
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On the rendering side, there are two ~.dvi~-to-image convertors which I am
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interested in. ~dvipng~ and ~dvisvgm~. For inline preview we care about speed. Using
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the above latex expression and benchmarking lead to the following results:
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| ~dvipng~ time | ~dvisvgm~ time |
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|-------------+--------------|
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| 0.09±0.002s | 0.18±0.004s |
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interested in: ~dvipng~ and ~dvisvgm~. Then with the a ~.pdf~ we have ~pdf2svg~.
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For inline preview we care about speed, while for exporting we care about file
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size and preffer a vector graphic.
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Using the above latex expression and benchmarking lead to the following results:
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| ~dvipng~ time | ~dvisvgm~ time | ~pdf2svg~ time |
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|-------------+--------------+--------------|
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| 89±2 ms | 178±2 ms | 12±2 ms |
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Now let's combine this to see what's best
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| Tool chain | Total time | Resultant file size |
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|--------------------+------------+---------------------|
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| ~latex~ + ~dvipng~ | 226±2 ms | 7 KiB |
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| ~latex~ + ~dvisvgm~ | 392±4 ms | 8 KiB |
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| ~pdflatex~ + ~pdf2svg~ | 230±2 ms | 16 KiB |
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So, let's use ~dvipng~ for previewing LaTeX fragments in-emacs, but ~dvisvgm~ for [[
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Exporting to HTML][LaTeX Rendering]].
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/Unfortunately: it seems that svg sizing is annoying ATM, so let's not do this right now./
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/Unfortunately: it seems that svg sizing is annoying ATM, so let's actually not do this right now./
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As well as having a sans font, there are a few other tweaks which can make them
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look better. Namely making the background transparent, and increasing the
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resolution.
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look better. Namely making sure that the colours switch when the theme does.
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#+BEGIN_SRC emacs-lisp
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(after! org
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;; make background of fragments transparent
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