Re: [Lilypond-auto] Issue 3313 in lilypond: Patch: Add the command \offset to LilyPond

[lilypond]

Updates:
        Labels: -Patch-countdown Patch-new

Comment #13 on issue 3313 by address@hidden: Patch: Add the command  
\offset to LilyPond
http://code.google.com/p/lilypond/issues/detail?id=3313#c13

Add the command \offset to LilyPond

The commands \override and \tweak set grob properties to absolute values.   
The ability to specify relative values--to displace values of various  
properties from current settings--would be a useful enhancement of  
LilyPond.  Currently, this is possible for default values of the  
property 'control-points using the \shape command.

The following patch seeks to generalize the application of offsets to grob  
properties.  Both overrides and tweaks are supported, on the model of the  
commands \shape and \alterBroken.

Offsets are currently limited to three data types: number, number-pair, and  
number-pair-list (this last is defined by this patch and represents the  
type used by 'control-points, for example).  Offsets are limited to grob  
properties listed in the default descriptions found in  
`scm/define-grobs.scm'.)  Displacements will be reckoned against an  
override in effect; otherwise, the default setting will be used.  There is  
some ability for accumulation of offsets.

http://codereview.appspot.com/8647044

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