Image processing

[chrisdaaz]

Add image processing dependencies to the main.yml workflow file.

Dependencies are listed in:

• ptx/index.ptx --> latex-image
• Makefile
• pretext/pretext

We want to automate this workflow:

• make edits
• run make latex-images
• manually add the images to the /images/ directory

@agreicius can you edit the build.sh so that it works as it does locally?

This is from the Makefile:

# Below is my best guess at what the new build script should look like

# mkdir -p public
#
# mkdir images
#
# mathbook/pretext/pretext -c latex-image -f all -d images ptx/index.ptx
#
# xsltproc -xinclude mathbook/xsl/pretext-html.xsl ptx/index.ptx
#
# mv *.html public
# mv knowl public
# mv images public

@chrisdaaz will check for errors and create a staging branch deployment for testing.

Example tikz image forthcoming in the the 0.x section on proofs.

[chrisdaaz]

I've pushed a new branch: https://github.com/nulib-oer/linear-algebra/tree/pretext-cli

It includes some changes so that we can use the pretext build html command to generate the HTML. It also starts to add (untested) LaTeX and PGF installation instructions so that the virtual machine can use tikz to generate some figures.

Some issues:

• The HTML builds fine for me locally (using pretext build html && pretext view html), but the image paths not working for some reason. PreTeXt is setting the prebuilt image paths to external/images/... but I need to figure out why.
• I can't generate images locally with the <latex-image> element, but that's probably because I don't have the correct LaTeX environment on my laptop (I have a very minimal setup, so I'm likely missing packages).

[chrisdaaz]

I've started using a preview version that deploys from the pretext-cli branch, here: https://nulib-oer.github.io/linear-algebra/

I got the TikZ images working properly on my local machine, but I'm struggling with an error on the GH side I posted about here https://groups.google.com/u/1/g/pretext-support/c/xEk9cWoFBMU

[chrisdaaz]

@agreicius with the help of the pretext community, i think this has been figured out: https://nulib-oer.github.io/linear-algebra/s_changeofbasis.html

I don't recommend we make any changes while you're teaching, but when there's a good chance to update the workflow for this text or the calculus one, i think the pretext-cli branch is a model