Re: Extending beamed stems

[Henrik Frisk]

OK, that makes sense. Beginner question: Is this terminology 
consistent for all properties, that is, *-extent referring to 
spacing and *-offset to 'real' size?

/henrik

Mats Bengtsson <address@hidden> wrote:
> 
> 
> Henrik Frisk wrote:
> > Your suggested solution seems to be the way to do it. I tried it quickly, 
> > but the NoteColumn #'force-hshift didn't do anything. Now, that may be 
> > because I am not using the 2.5 yet and i didn't start looking in the manual 
> > for a way to achieve this in 2.4. I will upgrade and try again and in any 
> > event, you have pointed me in the right direction, and I am sure i will be 
> > able to find out. I am still curious to find out why the Voice.Beam 
> > #'X-extent and Voice.Beam #'extra-offset doesn't have any effect. This was 
> > what I tried at first. Anybody knows why me and Daniel are unsuccessful in 
> > getting the desired effect?
> 
> As far as I know, the Voice.Beam #'X-extent property is only used
> when LilyPond tries to determine the (horizontal) spacing between
> different objects. In other words, the property does not
> change the size of the object, it just tells the collision and
> spacing handling how large the object should be considered. Same
> goes for extra-X-extent. The extra-offset property, on the other
> should definitely work (and does so according to the email below).
> 
>    /Mats
> 
> > Daniel Johnson <address@hidden> wrote:
> > 
> >>Hmm.  This is a real puzzler, because even though the Beam object
> >>implements the grob-interface, only certain grob properties have any
> >>effect.  Specifically, I tried the following on a small test file and
> >>they did nothing:
> >>
> >>\once \override Voice.Beam #'X-extent = #'(0 . 15)
> >>\once \override Voice.Beam #'extra-X-extent = #'(0 . 15)
> >>
> >>Oddly enough, the following DID have an effect:
> >>\once \override Voice.Beam #'extra-offset = #'(0 . 15)
> >>but of course I can't really imagine any use for this.
> >>
> >>Here's an idea:
> >>
> >>1. Just beam from the first three notes over to the high G-flat.
> >>2. On the D in the left hand, do a \once \override Voice.Stem
> >>#'flag-style = #'no-flag, and do a \stemUp.
> >>3. On the D in the left hand, do a \once \override NoteColumn
> >>#'force-hshift = #-1.  Adjust this value until the stem is aligned
> >>perfectly with the stem of the note in the right hand.
> >>4. On the D in the left hand, do a \once \override Voice.Stem #'length =
> >>#12 or however long it needs to be to meet up with the beam.
> >>
> >>I did my research out of the 2.5 manual, so your mileage may vary; but I
> >>don't think there's anything especially late-breaking about any of the
> >>features I used above.  The noteheads of the eighth-notes in the left &
> >>right hands won't be horizontally aligned, but their stems will meet the
> >>beam in the same place.  Is that acceptable?
> >>
> >>--Daniel
> >>
> >>Henrik Frisk wrote:
> >>
> >>
> >>>I'm running lilypond 2.4.5 (fink installation) on OSX 10.3.9. Attached to 
> >>>this mail is an example. Although this bar works OK the way it is, I would 
> >>>have liked to beam it 1/4+1/8 rather than 1/8+1/8+1/8. Either by 
> >>>connecting the lower beam of the first 1/8 note group to the stem of the 
> >>>second eighth note (from a notation point of view this would be unorthodox 
> >>>since one of the note heads would end up on the wrong side of the stem). 
> >>>The other way would be to have the beam go below all notes on beat one and 
> >>>two (counting eihgth notes).
> >>>
> >>>Here's the code for the bar:
> >>>
> >>> \time 3/8
> >>> ges'''16~[ \revert Beam #'positions ges64 \change Staff=lower f,32. ] 
> >>> \change Staff=upper \stemExtend \noFlag ges'8-> \noBeam
> >>> \acciaccatura { g32^\pedalc } \change Staff = lower b,,,32 [ \change 
> >>> Staff = upper f''~ f16~ ] |
> >>>
> >>>And here are the \noFlag and \stemExtend:
> >>>
> >>>noFlag = \once \override Stem #'flag-style = #'no-flag
> >>>stemExtend = \once \override Stem #'length = #32
> >>>
> >>>...and attached is an image.
> >>>
> >>>This is the first piece I do in LilyPond, so I'm not very experienced yet. 
> >>>Tahnks for any help.
> >>>
> >>>/henrik
> >>>
> >>> 
> >>>
> >>>
> >>>------------------------------------------------------------------------
> >>>
> > _______________________________________________
> > lilypond-user mailing list
> > address@hidden
> > http://lists.gnu.org/mailman/listinfo/lilypond-user
> 
> -- 
> =============================================
>       Mats Bengtsson
>       Signal Processing
>       Signals, Sensors and Systems
>       Royal Institute of Technology
>       SE-100 44  STOCKHOLM
>       Sweden
>       Phone: (+46) 8 790 8463                         
>          Fax:   (+46) 8 790 7260
>       Email: address@hidden
>       WWW: http://www.s3.kth.se/~mabe
> =============================================