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Re: NR 5.3.6 The \offset command: confusion in describing the examples


From: Federico Bruni
Subject: Re: NR 5.3.6 The \offset command: confusion in describing the examples
Date: Wed, 07 Jun 2017 15:48:58 +0200



Il giorno mer 7 giu 2017 alle 15:24, David Nalesnik <address@hidden> ha scritto:
Hi Federico,

On Wed, Jun 7, 2017 at 8:11 AM, Federico Bruni <address@hidden> wrote:
 Hi all

 While translating, I think I caught an error in the doc:

http://lilypond.org/doc/v2.19/Documentation/notation/the-offset-command

 """
The following example displaces the ‘broken’ OttavaBracket object through its staff-padding property. Since the property takes a number, offsets is provided with a list of numbers to account for the two segments created by the line break. The slur piece on the first line is effectively untouched since 0 is added to its default value. The segment on the second line is raised two staff-spaces from its default height. The default height happens
 to be 2, though it is not __necesssary__ to know this.




another typo: "necesssary"


    {
      \offset staff-padding #'(0 3) Staff.OttavaBracket
      \ottava #1
      c'''2 c'''
      \break
      c'''2 c'''
    }

 """


- 1st problem: All the text from "The slur piece on the first line" do not refer to the OttavBracket example, which is what is supposed to be discussed in that paragraph, but to the example after that (the example which mimics
 the effect of the \shape command).

No, the paragraph actually does refer to the OttavaBracket example.
The problem is a simple typo: "the slur piece" ought to read "the
bracket piece" or "the ottava bracket piece".  (Do you want to change
this, or should I?)


Ok, it makes sense now.
Please take care of the change. I'm busy with updating the italian translation...


- 2nd problem (maybe): I'm not even sure that the "slur on the second line is raised two staff-spaces from its default height". Isn't 1.5 for the
 endpoints? Here's the example:

 {
  c'4-\offset control-points #'(
               ((0 . 0) (0 . 0) (0 . 0) (0 . 1))
               ((0.5 . 1.5) (1 . 0) (0 . 0) (0 . -1.5))
              ) ( f'4 g' c''
  \break
  d'4 c'' f' c')
 }


Again, this is remedied by fixing the typo.  The default value of
OttavaBracket.staff-padding is 2.0.  (An issue could be raised with my
referring to a setting which could be changed at some point making the
reference inaccurate, but that's another issue!)



Ok, but I thought that in the OttavaBracket example the segment in the second line was raised by 3 (not 2) staff spaces.










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