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Re: \chordmode chords jumping about on PDF using Mac OSX


From: James Bailey
Subject: Re: \chordmode chords jumping about on PDF using Mac OSX
Date: Wed, 20 Oct 2010 19:01:43 +0200

On Oct 20, 2010, at 6:20 PM, James wrote:

> Hello
> 
> I am using Mac OSX Snow Leopard (10.6.x) with LilyPond 2.13.35
> 
> Here is the smallest example I could get down to
> 
> --
> 
> \version "2.13.35"
> 
> RH = \relative c'' {
>     \repeat unfold 30 { a8 a a a }
> }
> 
> LH = {
>    \clef bass
>    \repeat unfold 30 { a8 a a a }
> }
> 
> \score {
>    \new PianoStaff
>    <<
>     \chords { f1*5 bes :m }
>     \new Staff  \RH
>     \new Staff  \LH
>    >>
> }
> 
> ---
> 
> The symptom is after each compile the chord symbols move 'randomly' up and 
> down on the next PDF output. No changes are made to the .ly file, the file is 
> just compiled again and the chord symbols move.
> 
> If I use
> 
>     \chords { f1 bes :m } instead (as a test) then the jumping about isn't so 
> weird - that is it does still jump up and down but it seems to be consistent 
> - but it occurs every time I recompile.
> 
> All other notes in the score are fine.
> 
> I have attached a small screen-shot to show you what I mean, from left to 
> right is the output of the PDF after each compile.
> 
> There is no pattern I can see, occasionally I get a message about
> --
> 
> Finding the ideal number of pages...
> Fitting music on 1 page...
> Drawing systems...
> programming error: insane spring min_distance requested, ignoring it
> continuing, cross fingers
> Layout output to `test.ps'...
> Converting to `./test.pdf'...
> 
> --
> 
> But there is no correlation to this message and the output.
> 
> Also I have tried this same file on Windows 7 and cannot (yet) get this to 
> occur.
> 
> regards
> 
> James


That is an awesome bug. I don't get the complaint about insane min spring 
distance, but I do get the jumping around. I wouldn't even know how to add this 
to the tracker. This also happens on 2.13.36, which is where I tested it.




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