Re: left-aligning grobs to other grobs

[Janek Warchoł]

Hi David,

thanks for sharing this!

2011/3/8 David Nalesnik <address@hidden>:
> Hi, all --
>
> Attached is a function which started out as an attempt to get tempo
> indications to line up with the left edge of the time signature.  It's
> been generalized so that you can left-align any grob responsive to
> 'extra-offset to the closest grob of a specified type in that system
> (as far as I can tell so far -- you could even left-align a notehead
> to a barline, if you were so inclined...)
>
> It locates the closest grob by first searching all of the grobs in a
> system for every instance of the target type, then selecting the one
> that is closest horizontally.  (For example, if you want to align
> something to a barline, the function would determine where all the
> barlines are, then choose the nearest one).
>
> I have several questions:
>
> (1) Is there a way to locate the nearest grob more efficiently, so the
> routine doesn't have to search the entire system?
>
> (2) Is there a way to exclude grobs that are in the same system, but
> on a different staff?  I've looked at the 'staff-symbol property, but
> it's empty in some cases.
>
> (3) Does anybody have any suggestions how to improve the coding?  I'm
> enjoying learning Scheme, but my approach is rather hit-and-miss!
>
> Best,
> David
>
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