Re: calculation of the total duration of a score

[Paul]

On 09/05/2016 05:01 AM, Marc Hohl wrote:

> Has someone else already done something like this? I have no experience
> in writing scheme engravers, so any hint would be highly appreciated.

lilypond-html-live-score does something like this by post-processing an 
SVG with python to add meta data to the grobs in the SVG file:
https://gitlab.com/sigmate/lilypond-html-live-score/blob/master/make-live-score#L88

I was working on porting part of that to scheme so it could be done 
directly.  I've attached my include file.  It will currently display the 
total duration to the log.  It could be simplified in various ways if it 
was calculating just the total duration and not adding timing info to 
every grob.

It's still a work in progress and only lightly tested.

-Paul

grob-meta-data-engraver.ily
Description: Text document