[O] behavior of org-image-actual-size with units in attr_* :width

[John Kitchin]

I have set this in my init file

(setq org-image-actual-width '(600))

It works great, unless I use:
#+attr_latex: :width 4in

This makes my images 4 inches wide in LaTeX, but it sets my images to
approximately 4 pixels wide!

I feel like it is worth modifying the regexp that gets the width to
catch these cases and fall back on the variable value when they
exist. Any thoughts?


-- 
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John Kitchin
http://kitchingroup.cheme.cmu.edu