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Re: Getting an override into a markup function

From: David Kastrup
Subject: Re: Getting an override into a markup function
Date: Sat, 26 Sep 2015 03:27:15 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux)

Simon Albrecht <address@hidden> writes:

> On 26.09.2015 01:05, Michael Gerdau wrote:
>> While following this thread I've copied the various solutions into
>> a growing file. Interstingly with all three proposed solution one after
>> another the final resulting PDF is roted by 90 degree as well.
>> Commenting out any of the 4 \markup (or note) lines does not rotate
>> the PDF, but with all it does.
>> Why is that so ?
> A completely weird-in-appearance bug. I boiled it down to the following:
> Iff
> – the markup string has more than fifteen(!) characters
> – and is called more than three times,
> the resulting .pdf will be rotated. It happens with all integer
> multiples of 90 degrees and it’s only the PS backend which is
> concerned.
> <https://sourceforge.net/p/testlilyissues/issues/4621/>

Sounds to me like GhostScript is keeping statistics about the character
orientations and the most frequent orientation ends up as that of the
paper (maybe it's only a drawing optimization that unintentionally
bleeds into the result?).

So I suspect that the other page material (tagline?) makes up for
something around 50 characters.

Music engraving by LilyPond 2.17.28—www.lilypond.org

52 characters, minus 4 spaces.  Whoever thought the tagline was

David Kastrup

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