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[lilypond-es] Fwd: [Bug 503290] too thick barlines from GNU LilyPond PDF

From: Francisco Vila
Subject: [lilypond-es] Fwd: [Bug 503290] too thick barlines from GNU LilyPond PDF
Date: Sat, 20 Aug 2011 17:24:38 +0200

Dear friends, I forward this from the poppler team.
Amigos, os reenvío esto que me llega del equipo de Poppler.

---------- Mensaje reenviado ----------
De: "evince" <address@hidden>
Fecha: 20/08/2011 12:22
Asunto: [Bug 503290] too thick barlines from GNU LilyPond PDF
Para: <address@hidden>
 evince | printing | 2.20.x

Adrian Johnson <ajohnson> changed:

          What    |Removed                     |Added
                CC|                            |address@hidden

--- Comment #9 from Adrian Johnson <address@hidden> 2011-08-20 10:22:19 UTC ---
The problem has been fixed in poppler git. It was caused by stroking a zero
width line. This is supposed to draw the thinnest line possible on the output
device. As cairo does not support 0 width lines, poppler was setting the line
width of a 0 width line to 1 unit. This is correct for the screen where 1 unit
== 1 pixel is the thinnest line. But when printing 1 unit == 1/72" which is too

I'm not sure why LilyPond wants to fill a rectangle then stroke a 0 width line
around it. The second step seems to be redundant. The PDF Reference says that 0
width lines should not be used because the result is device dependent.

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