Re: Org-babel-lilypond always renders full pages

[adam <ahcnz@orcon.net.nz>]

On Tue, 2020-03-31 at 10:48 -0300, Jonathan Gregory wrote:
> Hi
> 
> On 30 Mar 2020, stardiviner <numbchild@gmail.com> wrote:
> 
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA256
> > 
> > 
> > stardiviner <numbchild@gmail.com> writes:
> > 
> > > -----BEGIN PGP SIGNED MESSAGE-----
> > > Hash: SHA256
> > > 
> > > 
> > > You might want to try this:
> > > 
> > > #+begin_src emacs-lisp
> > > (add-to-list 'org-babel-default-header-args:lilypond
> > >              '((:prologue . "\paper{
> > >   indent=0\mm
> > >   line-width=120\mm
> > >   oddFooterMarkup=##f
> > >   oddHeaderMarkup=##f
> > >   bookTitleMarkup = ##f
> > >   scoreTitleMarkup = ##f
> > > }")))
> > > #+end_src
> > > 
> > 
> > I found this custom setting lilypond header arguments will not work. Because this code
> > function:
> > 
> > #+begin_src emacs-lisp
> > (defun org-babel-lilypond-get-header-args (mode)
> >   "Default arguments to use when evaluating a lilypond source block.
> > These depend upon whether we are in Arrange mode i.e. MODE is t."
> >   (cond (mode
> >          '((:tangle . "yes")
> >            (:noweb . "yes")
> >            (:results . "silent")
> >            (:cache . "yes")
> >            (:comments . "yes")))
> >         (t
> >          '((:results . "file")
> >            (:exports . "results")))))
> > 
> > (defun org-babel-lilypond-set-header-args (mode)
> >   "Set org-babel-default-header-args:lilypond
> > dependent on ORG-BABEL-LILYPOND-ARRANGE-MODE."
> >   (setq org-babel-default-header-args:lilypond
> >         (org-babel-lilypond-get-header-args mode)))
> > #+end_src
> > 
> > It always reset and return one result of two conditions.
> > 
> > I think this is a bug.
> 
> So are all org-babel-default-header-args:LANG custom variables? In the
> ob-lilypond.el library the headers are hard-coded.
> 
> [...]
> 
> --
> Jonathan
> 


Hi all.  This is very interesting. 


I quickly tried setting the   org-babel-default-header-args:LANG   using exactly 
the src emacs-lisp  example block above.  

However that variable remained nil before and after org export lilypond to PDF. 
Am sure I must have done something wrong. 

Thank you for drawing my attention to that variable, as it seems the right place 
for  lilypond  headers and options too. 


Off-topic:  Oliver is exporting/engraving to a fixed-resolution png. An alternative 
is to export scalable vector graphics of the score to PDF.