moinejf/abc2svg

How to prevent lines of invisible notes from collapsing?

chrisfargen opened this issue · 2 comments

chrisfargen commented 
%%beginps
/slashz { 12 sub M -6 20 RM 11 12 RL 4 0 RL -11 -12 RL -4 0 RL fill}!
%%endps
%%deco slashz 7 slashz 0 0 0
X: 182
T: Them there eyes
T: QHCF version
C: Pinkard, Tauber & Tracy
M: 4/4
L: 1/8
R: swing
K: Dmaj
Q: 1/4=200
U: s = !slashz!
U: i = !invisible!
%
P: A
"D" a2 fe de f2 | a2 fe de f2 | "C#7" b4 b3 b- | b4 z4 |
"D" a2 fe de f2 | a2 fe de f2 | "E-7" b4 b3 b- | "A7" b4 z4 |
"F#7" siz2 siz2  siz2 siz2 | siz2 siz2 siz2 siz2 | "B-" siz2 siz2 siz2 siz2 | siz2 siz2 siz2 siz2 |
"E7" siz2 siz2 siz2 siz2 | siz2 siz2 siz2 siz2 | "A7" siz2 siz2 siz2 siz2 | siz2 siz2 siz2 siz2 ||

I am trying to add slash notation for improvised sections of music. However, because I have used !invisible! decoration on all the contents within these lines, the line is not being shown at all. Below, there should be four lines of music in total.

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Any suggestions appreciated. Thanks.

moinejf commented

Using invisible rests just bypassed the bug signalled in the issue #120.
With the fix, the rests may be visible again, but an other problem is raised: the rests have a x offset in the page and this offset depends on the pitch of the last notes.
The solution is to use a second voice for the slashes. Here is a way with a voice overlay:

`%%beginps
/slashz {12 sub M -7 6 RM 11 12 RL 3 0 RL -11 -12 RL -3 0 RL fill}!
%%endps
%%deco head-slashz 7 slashz 0 0 0
U: s = !head-slashz!

X:1
M:4/4
L:1/8
K:C
"D" a2 fe de f2 | a2 fe de f2 | "C#7" b4 b3 b- | b4 z4 |
"D" a2 fe de f2 | a2 fe de f2 | "E-7" b4 b3 b- | "A7" b4 z4 |
(&
X4|
X4|
&
"F#7" sz2 sz2 sz2 sz2 | sz2 sz2 sz2 sz2 | "B-" sz2 sz2 sz2 sz2 | sz2 sz2 sz2 sz2 |
"E7" sz2 sz2 sz2 sz2 | sz2 sz2 sz2 sz2 | "A7" sz2 sz2 sz2 sz2 | sz2 sz2 sz2 sz2 ||
&)`

chrisfargen commented

@moinejf thanks for speedy reply.

I found another solution in the documentation: %%staffnonote 2 (always display the staves).

%%beginps
/slashz { 12 sub M -6 20 RM 11 12 RL 4 0 RL -11 -12 RL -4 0 RL fill }!
%%endps
%%deco slashz 7 slashz 0 0 0
X: 1
M: 4/4
L: 1/8
K: Dmaj
%
U: s = !slashz!
U: i = !invisible!
%
%%staffnonote 2
%
P: A
"D" a2 fe de f2 | a2 fe de f2 | "C#7" b4 b3 b- | b4 z4 |
"D" a2 fe de f2 | a2 fe de f2 | "E-7" b4 b3 b- | "A7" b4 z4 |
"F#7" siz2 siz2  siz2 siz2 | siz2 siz2 siz2 siz2 | "B-" siz2 siz2 siz2 siz2 | siz2 siz2 siz2 siz2 |
"E7" siz2 siz2 siz2 siz2 | siz2 siz2 siz2 siz2 | "A7" siz2 siz2 siz2 siz2 | siz2 siz2 siz2 siz2 ||

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