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Re: Determining what parameters exist for an item


From: Simon Albrecht
Subject: Re: Determining what parameters exist for an item
Date: Mon, 25 Jan 2016 10:02:41 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1

On 25.01.2016 00:55, David Nalesnik wrote:

\offset only works on properties that have a default value listed in the grob pages in the IR (derived from the alist in scm/define-grobs.scm). There is no default value listed for KeyCancellation.X-extent, hence the warning.

Well, the point was that exactly for this case it would be great to tell lily ‘Increase this property by two, no matter what it previously was’, e.g. ‘Offset KeyCancellation’s X-extent by #'(0 . 2) (so it will have two units whitespace at the right), regardless of how wide it would normally be’. That would be a very powerful use case for \offset, if also the technical limitations might be non-trivial.

Best, Simon



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