[DejaVu-bugs] [Bug 24515] Kerning overdone for pairs T?, V?, R?, Y? and W?

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=24515


Qianqian Fang <fangqq at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  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        is obsolete|                            |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        is obsolete|                            |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.


-- 
Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.