Re: help with moving dynamic marks needed

[Vicente Solsona]

On Mon, 18 Oct 2010 12:43:18 +0200, James <address@hidden> wrote:
> On 18/10/2010 06:21, Xavier Scheuer wrote:
> > 2010/10/18 Janek Warchoł<address@hidden>:
> > > I've tried doing some things described here, but i don't understand  
> > > them
> > > well enough and it didn't work like i wanted :(
>
> The reason is that while the previous example in the documentation  
> *does* move the symbol around, it doesn't actually change the spacing  
> algorithm, and the spacing is still calculated 'as if' the symbol was  
> where it originally was before you tried to move it.
>
> The '\tweak' does cause the symbol to be moved as well but the spacing  
> is calculated based on the final location of where the symbol ends up  
> not where it was to start with.
>
> This was why (as Janek pointed out) the example has been changed in a  
> later 2.13.x version of the documentation and will also be in the  
> forthcoming 2.14.
>
> James

exactly. and this is precisely the usefulness of extra-offset IMO, just  
that it was used in the wrong example :).

> What is the most elegant solution for moving the dynamic marks in such a  
> way
> that LilyPond could calculate vertical system spacing with knowledge that
> dynamics are moved?

Janek, note that this line in your code raises an error:

> fis4 d4 d'4-> \tweak #'extra-offset #'( 2 . 4) ^\f d4->

extra-offset does not affect spacing and can't be "tweaked" afaik (you'd  
have to \override it to work); in your case, you have to tweak X-offset  
and Y-offset, which actually do affect spacing:

fis4 d4 d'4->-\tweak #'X-offset #-2.7 -\tweak #'Y-offset #2.5 ^\f d4-> |

HTH.

greetings,

Vicente