I have a bunch of dot settings that I want to set globally. I hacked it like
this:
(setq va/org-dot-preamble "digraph g {
rankdir=LR nodesep=0.2 ranksep=0.1 arrowsize=0.2
node [fontname=courier fontsize=10 margin=\"0.02,0.01\" shape=box width=0.1
height=0.1]
edge [fontname=courier fontsize=8 labelfontname=courier labelfontsize=8]")
(defadvice org-babel-expand-body:dot (before add-preamble (body params)
activate)
"add DOT=va/org-dot-preamble as :var in params, so $dot is replaced with it"
(setq params (cons (cons ':var (cons 'DOT va/org-dot-preamble))
params)))
And then I start dot code blocks with "$dot", which is replaced with the above
string:
#+begin_src dot :results silent file :file ./img/SymmetricProperty.png
$dot
x -> y [label="q"]
y -> x [label="q" color=red]
}
#+end_src
I can override a dot param by adding a different value after the common
inclusion $dot, e.g.:
$dot ranksep=0.7
The problem is
*** how can I make this per-file?
Neither #+BIND nor emacs "Local Variables:" does the trick.
Bonus if I can do it per-heading :-)
dot can take these settings from the command line, eg
-G "rankdir=LR nodesep=0.2 ranksep=0.1 arrowsize=0.2"
-N "fontname=courier fontsize=10 margin=\"0.02,0.01\" shape=box width=0.1
height=0.1"
-E "fontname=courier fontsize=8 labelfontname=courier labelfontsize=8"
So I could try to mess with the :cmdline slot of
org-babel-default-header-args:dot ... is this evaluated locally?
