Re: Calculate spacing in lilypond

[Reinhold Kainhofer]

Am Dienstag, 20. Juli 2010, 14:06:25 schrieb address@hidden:
> Ok I tried it in an easy example (just one note)
> but I don't understant the functions
> combine-stencil and translate-stencil
> what are their arguments (i don't know scheme programming yet)
> I have just found some lines in scm/stencil.scm
[...]
> are the argument of translate-stencil in pixel, if it is the case then why
> are there some float numbers?

No, LilyPond is not based on pixels at all. The default output formats (PDF, 
PS, EPS) are all vector graphic formats. The PNG/JPG output simply converts 
the resulting vector graphic to a pixel graphic. Unfortunately, this means 
that it is basically impossible to detect exactly where a note is printed in 
the pixel graphic.

I suppose it would be much easier to modify the .ly files and re-create the 
graphics...

Cheers,
Reinhold
-- 
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Reinhold Kainhofer, address@hidden, http://reinhold.kainhofer.com/
 * Financial & Actuarial Math., Vienna Univ. of Technology, Austria
 * http://www.fam.tuwien.ac.at/, DVR: 0005886
 * LilyPond, Music typesetting, http://www.lilypond.org