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lam-alif has too much space after it #1154

mfrasca opened this Issue Mar 31, 2012 · 7 comments

3 participants

mfrasca commented Mar 31, 2012

I assume it's a mapnik issue, but it comes from openstreetmap.

the "زنقة الملاح" (road of the mellah) is rendered with so much space after the lam-alif glyph (لا) that it seems to be separated from the "ح" immediately following it.

Mapnik member

thanks for the report. I've added to the list of text rendering issues at

Mapnik member

Can you please upload a screenshot, annotate the exact label, and then link here?

mfrasca commented Apr 6, 2012



1 is the way it looks now, 2 is what I would expect.
which part of the code is involved, I'd like to have a look at it, was it just out of curiosity!
(I uploaded to dropbox, is there a way to upload to github?)

Mapnik member
herm commented Jun 24, 2012

This bug should be fixed when we switch to HarfBuzz as our shaping engine. It shouldn't need any special handling.

@herm herm was assigned Jun 25, 2012
Mapnik member
herm commented Jul 16, 2012

Please check the image in this blog post and tell me if it is correct.
Thank you!

Mapnik member
herm commented Aug 21, 2012

Closing this ticket as the issue is solved in the harfbuzz branch. Refs #1428.

@herm herm closed this Aug 21, 2012
@springmeyer springmeyer added a commit that referenced this issue Nov 22, 2013
@springmeyer springmeyer Improved support for international text
 - Implementation by @herm for GSOC 2012 (
 - C++11 port, improvements, optimizations by @artemp
 - Testing and integration with master by @springmeyer
 - Thank you to all the support from @behdad along the way
 - Thanks for help testing @toton6868, @stephankn, @nirvn, @mfrasca, @simonsonc and many others

Refs: #2073,#2070,#2038,#2037,#1953,#1820,#1819,#1714,#1634,#1547,#1532,#1319,#1208,#1154,#1146
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