[DejaVu-bugs] [Bug 24515] Kerning overdone for pairs T?, V?, R?, Y? and W?
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Sun Oct 18 09:25:11 PDT 2009
http://bugs.freedesktop.org/show_bug.cgi?id=24515
Qianqian Fang <fangqq at gmail.com> changed:
What |Removed |Added
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Attachment #30369|0 |1
is obsolete| |
Attachment #30511|0 |1
is obsolete| |
--- Comment #6 from Qianqian Fang <fangqq at gmail.com> 2009-10-18 09:25:10 PST ---
Created an attachment (id=30534)
--> (http://bugs.freedesktop.org/attachment.cgi?id=30534)
kerning adjustment patch
(In reply to comment #5)
> I'm not really keen to modify kerning of the base glyphs, as this could too
> easily corrupt existing documents. We've always had this "policy" to not change
> the base glyphs.
DejaVu sans is the most widely used screen font in FOSS desktops. I think it is
more important to keep its fitness for its primary use (screen display) than to
concern the consistency in documents. This is indeed a long standing issue and
you can find a number of reports in the opened bugs:
https://bugs.freedesktop.org/buglist.cgi?query_format=specific&order=relevance+desc&bug_status=__open__&product=DejaVu&content=
>
> Sure, the kerning is quite a lot, but it looks like you're not using proper
> font hinting either but the freetype autohinter (although it's hard to tell, it
> could be the font hinting but then the subpixel hinting could cause this),
> which at those small font sizes apparently applies more kerning than the amount
> that's actually in the font.
I am pretty sure this visual defect is largely caused by the fact that the
kerning is too close. As you can see from the large-size characters in the
previous screenshots, the letter spacing is not uniform even in large sizes.
>
> btw, to make patches, you have to do "make pre-patch" first to get all the
> garbage out of the diffs.
> Check http://dejavu-fonts.org/wiki/index.php?title=Developer's_Corner for
> details.
>
A cleaner patch is attached. Please let me know how this looks to you.
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