Annotations drawn over each other about abcjs

[paulrosen]

I know what you mean, but could you include an example ABC string anyway so
I can see the extent of what you are trying to do? If it is just a little
bit too large then sliding notes around might be reasonable, if it is way
too large, then I need to layer it.

On Fri, Apr 24, 2015 at 12:12 PM, David Randolph [email protected]
wrote:

The horizontal alignment of the notes seems to be fixed. So annotations
wider than two characters on two consecutive notes are allowed to draw over
each other. In my application, it is really important that all of the
annotations be legible. It would be nice if there were a way to tell ABCJS
to keep annotations aligned and visible (sliding the notes to the right as
needed). I realize this may be a tall order. Perhaps an easier option would
be to layer the annotations so they don't obscure each other. That would do
the trick.

Many thanks for a great library.

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#32.

Paul Rosen
Performant Software Solutions, LLC

[dvdrndlph]

Sure thing. Here is some ABC that should illustrate the problem:

X: 1
T: Cooley Snippet
M: 4/4
L: 1/8
R: reel
K: Emin
|:"^1/2"D2|"^2/3"E"^4/1"B"<2"{c}+1+B+3+A+5+ B2 +1+E+3+B|"^232323"~B2 "^121212"~B2 +5+d+3+B+2+A+1+G|+3+F+1+D+4+A+1+D BDAD|FDAD dAFD|
EBBA B2 EB|B2 AB defg|afe^c dBAF|DEFD E2:|

I am writing a little a collection tool for piano fingering data. (It lives at https://github.com/dvdrndlph/didactyl/tree/master/mdc.) Basically, pianists enter fingering values in a text box, and these are rendered in real time by your fine library. The problem is that some note heads (those marked with trill or grupetto marks and notes with different fingerings within different repeated sections, for example) require more than one character to annotate completely. The +1+ fingering annotations are not usable for this task, since they expect a single value 1-5. So I am using double-quote annotations.

A related problem appears with annotations for multiple grace notes, which cannot be placed with their specific note heads at all. As seen in the ABC above, I am annotating grace notes to the left of the main note. This can also lead to bits writing over each other.

I realize this may be a hard thing to get right, but it seems that each elements need to know how not to draw over other elements on the page. But anything you can do in your library (or any workarounds you could suggest) to mitigate these problems would be appreciated.

Thanks,
Dave

[paulrosen]

Would you try this version and let me know if it works for you? https://github.com/paulrosen/abcjs/blob/master/bin/abcjs_basic_2.1b1-min.js

[dvdrndlph]

Thanks for the quick turnaround. For my immediate purposes, this new version works great. The notes slide over nicely.

But I am thinking now that for most use cases, people might prefer a layered approach with some clever way to make sure no annotations overwrite any others.

Also, for general consumption, we would need some way to make these behaviors configurable.

Cheers,
Dave

[paulrosen]

There can definitely be improvement here, but I'd like to get all reasonable examples to not touch first. I'll try to have the above code in an official version in the next couple weeks.