Re: Error in glyphs: glyphs with filled loops at different feta font sizes

[Shane Brandes]

Hi Frank,

 I can not reproduce these errors on Ubuntu 10.04 . I have a suspicion
that it is your rasterizing engine in your Gentoo that is being fussy
and that the errors might be caused by the fact that some of the fonts
used by lilypond do not validate properly. Much of the time this will
not affect things adversely, but it is a commercial standard that is
pretty rigorously adhered to. This means that certain rasterizing
engines might get a little mixed up by tracing the wrong direction or
things that self overlap or simply missing extremum (points marking
outer boundaries and changes of direction) can also cause unreliable
results.  This of course is a shot in the dark but it makes a fair
amount of sense. In any event If I had any idea how lilypond called up
which set of fonts for what size it would be simple to make an
experiment to see if it is resolvable by correcting those things.
Attaching the pdf only will show us what errors your machine has
generated as pdf viwers on other machines will display the same errors
as the pdf is in its own way an image sort of file.

Shane

On Mon, Jan 17, 2011 at 11:35 PM, Frank Steinmetzger <address@hidden> wrote:
> Hello List,
>
> I am having a problem here with Lilypond 2.12.3 on Gentoo Linux. I use a size
> of 14.14 for my own things, so I haven’t noticed it yet. But now I’ve come
> across someone else’s documents, which are set at 17.82. There the loop at the
> tip of the G clef is filled out. And at size 15.87 it’s the 4/4 time signatury
> glyph that displays incorrectly. Can you tell me how to avoid this?
>
> I attached a screenie of the sizes in question and the ly they were made with.
>
> I have tried all sizes that are stated in the comment of the attached file.
> The filled loop also occurs at 11.22, 20 and 22.45. At 25.2 I noticed that the
> clef’s centre diagonal line has an error at its lower end (the inside of the
> curve is thicker). Thus I discovered this error in the others as well.
>
> Only 12.6 and 14.14 seem to really look normal.
> I tested it with Okular, Gnome’s PDF viewer and KPDF, they all showed the
> error. But still I’m attaching the PDF for size 17.82 to test it.
> --
> Gruß | Greetings | Qapla'
> Emacs is a great operating system, which only lacks a good editor.
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