Re: Tie collision with note

[Nicholas Moe]

Thanks, Stan, for all your help on this. I checked out LilyPondTool
and JEdit and was able to see how to get control points from the slur
tweak tool. But as I was trying to figure out how to use the slur
tweak tool, I came across another tweak that works even better. I
adapted \shapeSlur from the Lilypond Snippet Repository
(http://lsr.dsi.unimi.it/LSR/Item?id=63) and turned it into \shapeTie.
(Thanks, LSR!) With this I can specify offsets for each control point
of the tie. This way, the tweak scales with the layout of the music.

Here's the example with the addition of this tweak:

%-----------------------------------------------------
\version "2.13.54"

shapeTie =
  #(define-music-function (parser location offsets) (list?)
    #{
       \once \override Tie #'control-points = #(alter-curve $offsets)
    #})

#(define ((alter-curve offsets) grob)
   ;; get default control-points
   (let ((coords (ly:tie::calc-control-points grob))
         (n 0))
     ;; add offsets to default coordinates
     (define loop (lambda (n)
                    (set-car! (list-ref coords n)
                              (+ (list-ref offsets (* 2 n))
                                 (car (list-ref coords n))))
                    (set-cdr! (list-ref coords n)
                              (+ (list-ref offsets (1+ (* 2 n)))
                                 (cdr (list-ref coords n))))
                    (if (< n 3)
                        (loop (1+ n)))))
     ;; return altered coordinates
     (loop n)
     coords))


\relative c' {
\clef "bass"
\voiceOne
<<
                { d1~ d2 c }
                \new Voice {
                        \voiceThree
                        \shiftOff
                        \shapeTie #'(1 -.25 1 -.25 -1.375 -.25 -1.375 -.25)
                        a1~
                        \shiftOn
                        a2 g
                }
                \new Voice {
                        \voiceTwo
                        d2\( f
                        e2 e\)
                }
>>
}

%-------------------------------------------------

Best,

Nick

On Sun, Mar 20, 2011 at 11:30 AM, Stan Sanderson
<address@hidden> wrote:
>
> On Mar 20, 2011, at 1:21 AM, Nicholas Moe wrote:
>
>> That makes the tie how I want it, but I need to shift the middle notes
>> to the right in the second measure to show that they are their own
>> voice, whilst keeping the stems up. How could I do that?
>>
>> Nick
>
>
> I understand. How about this (thanks, JEdit and LilyPondTool!)
>
> \version "2.13.54"
>
> \relative c' {
> \clef "bass"
> \voiceOne
>        <<
>                { d1~ d2 c }
>                \new Voice {
>                        \voiceThree
>                        \shiftOff
>                        \once \override Tie #'control-points = #'(  ( 2.2771
> . 2.348) ( 3.8427 . 3.344) ( 7.3296 . 3.486) ( 10.176 . 2.348) )
>                        a1~
>                        \shiftOn
>                        a2 g
>                }
>                \new Voice {
>                        \voiceTwo
>                        d2\( f
>                        e2 e\)
>                }
>        >>
>        }
>
> Stan
>
>
>
>
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