Re: Lilypond's SVG output

[Sandor Spruit]

Op 19-08-11 10:19, Mike Solomon schreef:
> On Aug 19, 2011, at 10:04 AM, Sandor Spruit wrote:
[snip]
> - In what version, exactly, did Lilypond drop the use of groups (svg:g) in its
> output?
>
> LilyPond still uses groups.  grep "<g" in scm/output-svg.scm.
OK, thanks. I stand corrected. Let me rephase my comment. When looking 
at the
very nice example Tim Sawyer (percussion360.com) posted on the user list 
this
afternoon, I think the use of svg:g needs a bit of work to enable that 
sort of app.

> I read a debate on this issue, where the key argument against groups was the
> trouble people have in editing grouped SVG elements in Inkscape. I can, however,
> imagine all sorts of situations in which group elements could be very useful -
> from a developer's point of view at least. This leads to the second question:
>
> - For what purpose are people putting music up on the web; what's the typical
> use case?
>
> Check the list archives for an e-mail from Michael Geary.  He's working on this.
> I do it too for my musical compositions (http://www.apollinemike.com/norman1).
OK. I think I've found the mail you're referring too.

> Just publishing it for others to read? Hyperlinking to it, from it? Annotations?
> Keeping bits and pieces of music for later reference? Learning? Studying?
> Comparing versions?
>
> There is no formal hub that groups these efforts together, but as the SVG 
> standard becomes better supported by more and more browsers, I'm sure it'll get 
> picked up by more and mor epeople.
There's a number of additional comments on the list that I missed the 
first time
round.

> I may, at some point, be in the position to do some work on this. But I'm
> hesitant to dive in at the deep end - meaning Lilypond tens of thousands of
> lines of code ...
>
> You don't need to jump into tens and thousands of lines of LilyPond code - all 
> of the svg backend is present in output-svg.scm.
> Michael Geary is likely to be sponsoring some work on this too - I'll keep you 
> posted if/when this happens.
Well, I do feel I need to have some insight into the inner workings of 
Lilypond
before I can do anything meaningfull here, i.e. more than just the 
backend. A
solution enabling a more general use of the features Tim demonstrates may
be use in research too, so maybe I can work on this during office hours...

cheers,
Sandor