Alterations on chords collide with previous score elements

[arshiacont]

When a chord has several explicit alterations, they are correctly placed but they often collide with previous elements in the score (bar lines, clefs, meter keys and in some cases chord/notes).

Hint: It seems like the note/chord's bounding box of the note/chord is not updated as the result of multiple alteration spacing!?

Ofcourse one can overcome this by artificially increasing spacing between all elements but that's not the goal.

Here is one example generated on guidoeditor (web). I can provide more.

{[ 
   (* meas. 1 *)  \clef<"g2"> \key<0> \meter<"2/4"> 
   \stemsUp \beamBegin:1 {d1/8, f1/8  }
  {\acc( d#1/8), \acc( f#1/8)}
  {e1/8, g1/8  }
  {\acc( e&1/8), \acc( g&1/8)}
 \beamEnd:1  \bar<measNum=3> 
   (* meas. 3 *)  \beamBegin:1 {\acc( c1/8), \acc( e&1/8)}
  {b0/8, d1/8  }
  {\acc( b&0/8), \acc( d&1/8) }
 \stacc<position="below">( {a0/8, c1/8  })
 \beamEnd:1 \bar<measNum=4> 
   (* meas. 4 *)  \clef<"f4"> \stemsDown \beamBegin:1  {\acc( a&0/8), \acc( b0/8)}
  {g0/8, \acc( b&0/8)}
 {\acc( g&0/8), \acc( a0/8) }
  {f0/8, \acc( a&0/8) }
 \beamEnd:1 \bar<measNum=5> 
   (* meas. 5 *)  \beamBegin:1 {e0/8, g0/8  }
 	{\acc( e&0/8), \acc( g&0/8) }
  {d0/8, f0/8  }
  {\acc( d#0/8), \acc( f#0/8)}
 \beamEnd:1 \bar<measNum=6> 
   (* meas. 6 *)  \clef<"g2"> \stemsUp \beamBegin:1 
   {\acc( d#1/8), \acc( f#1/8)}
  {\acc( d#1/8), \acc( f#1/8)}
  {e1/8, g1/8  }
 {\acc( e&1/8), \acc( g&1/8) }
 \beamEnd:1 \bar<measNum=7> 
   (* meas. 7 *)  \beamBegin:1 {d1/8, f1/8  }
  {\acc( e&1/8), \acc( g&1/8)}
  {d1/8, f1/8  }
  {\acc( c#1/8), \acc( e1/8)}
 \beamEnd:1 \bar<measNum=8> 
   (* meas. 8 *)  \beamBegin:1 {\acc( c1/8), \acc( e&1/8)}
  {b0/8, d1/8  }
  {\acc( b&0/8), \acc( d&1/8)}
  {a0/8, c1/8  }
 \beamEnd:1 \bar<measNum=9> 
   (* meas. 9 *)  \clef<"f4"> \stemsDown \beamBegin:1 
   {\acc( a&0/8), \acc( b0/8)}
  {g0/8, \acc( b&0/8)}
  {\acc( g&0/8), \acc( a0/8)}
 {f0/8, \acc( a&0/8)}
 \beamEnd:1 \bar<measNum=10> 
   (* meas. 10 *)  \beamBegin:1  {e0/8, g0/8  }
 	{\acc( e&0/8), \acc( g&0/8)}
   {d0/8, f0/8  }
   {\acc( d#0/8), \acc( f#0/8) }
 \beamEnd:1 \bar<measNum=11> 
   (* meas. 11 *)  \clef<"g2"> \stemsUp \beamBegin:1 
   {d1/8, f1/8  }
  {\acc( d#1/8), \acc( f#1/8)}
  {e1/8, g1/8  }
 {\acc( e&1/8), \acc( g&1/8)}
 \beamEnd:1 \bar<measNum=12> 
   (* meas. 12 *)  \beamBegin:1  {d1/8, f1/8  }
    {\acc( e&1/8), \acc( g&1/8) }
 	{d1/8, f1/8  }
 	{\acc( c#1/8), \acc( e1/8)}
 \beamEnd:1 \bar<measNum=13> 
   (* meas. 13 *)  \beamBegin:1 \stacc<position="below">( {\acc( c1/8), \acc( e&1/8)})
 \stacc<position="below">( {b0/8, d1/8  })
 \stacc<position="below">( {\acc( b&0/8), \acc( d&1/8)})
 \stacc<position="below">( {a0/8, c1/8  })
 \beamEnd:1 \bar<measNum=14> 
   (* meas. 14 *)  \clef<"f4"> \stemsDown \beamBegin:1 \stacc<position="above">( {\acc( a&0/8), \acc( b0/8)})
 \stacc<position="above">( {g0/8, \acc( b&0/8)})
 \stacc<position="above">( {\acc( g&0/8), \acc( a0/8)})
 \stacc<position="above">( {f0/8, \acc( a&0/8)})
 \beamEnd:1 \bar<measNum=15> 
   (* meas. 15 *)  \beamBegin:1 \stacc<position="above">( {e0/8, g0/8  })
 \stacc<position="above">( {\acc( e&0/8), \acc( g&0/8)})
 \stacc<position="above">( {d0/8, f0/8  })
 \stacc<position="above">( {\acc( d#0/8), \acc( f#0/8)})
 \beamEnd:1 \bar<measNum=16> 
   (* meas. 16 *)  \stemsUp \beamBegin:1  {\acc( d0/8), \acc( f0/8)}
 \stacc<position="below">( g-1/8)
 \beamEnd:1 \beamBegin:1  {\acc( d&0/8), f0/8  }
  g-1/8
 \beamEnd:1 ]
  }

[dfober]

This issue has been already identified (years ago). Actually the bounding boxes of each note is correct. As far as I remember, I've already looked at the problem, enough to see that it's not trivial to solve. Back to the todo list.

[arshiacont]

any hints on how to approach this issue? it's I believe the number one visual problem in Guido

[dfober]

I'll have a look asap and I'll keep you informed.