Correction -- no need to send the image. You said png output was
correct, so I'll just compare against that.
Michael Droettboom wrote:
> The code that generates the Type 3 fonts for us is fairly old (1995),
> and certainly predates the widespread adoption of Unicode, so I'm
> somewhat not surprised this doesn't work. I'll have a brief look to see
> if there are any obvious fixes, but we're unlikely to implement a
> full-fledged Unicode rendering system (like Pango) any time soon. Since
> I don't read Korean, can you provide an image file of what the resulting
> compound glyph is supposed to look like?
>
> As a workaround, you could try using the Cairo backend to generate
> Postscript and PDF. It may do a better job. You could also try other
> Korean fonts -- they may not use compound glyph composition.
>
> Cheers,
> Mike
>
> Jae-Joon Lee wrote:
>
>> Hello,
>>
>> I wanted to render some Korean text in my matplotlib figure and this
>> is how I did (with python2.5 and trunk version of matplotlib).
>>
>> # -*- coding: utf-8 -*-
>> from pylab import *
>>
>> import matplotlib.font_manager as fm
>> fp=fm.FontProperties(fname="/users/research/lee/.fonts/Eunjin.ttf", size=100)
>>
>> plot([1,2,3])
>> text(1.,1.5, u'이', fontproperties=fp)
>> savefig("test.eps")
>> show()
>>
>>
>> It works fine with GtkAgg (and saving to png file also).
>> But ps (fonttype=3) and pdf backends seem to render the characters
>> incorrectly.
>> Rendering with ps backends (fonttype=42) IS correct on the other hand.
>> See attached eps and pdf files. "test_correct.eps" is the correct one
>> made with ps fonttype=42.
>> "test_wrong.eps" is from fonttype=3.
>>
>> Just in case, my rc file contains
>> text.usetex : False
>> ps.useafm : False
>>
>>
>> If I use ps backend with fonttype=3 (the wrong one), the embedded font
>> in the output eps file for the above character is defined as follows.
>>
>> /uniC774{917 0 67 -2 833 678 _sc
>> gsave 0 343 translate
>> false CharStrings /cho12-1 get exec
>> grestore false CharStrings /jung21-1 get exec
>> }_d
>>
>> It is a composition of two glyphs (/cho12-1 and /jung21-1), and my
>> guess is the first glyph is somehow misplaced. If I manually change
>> the translation of the first glyph to something like (0, -150) instead
>> the current value of (0, 343), the output looks okay.
>>
>> I tried a few other Korean fonts but the results were similar. Some of
>> the glyphs are misplaced (in ps(type=3) and pdf backends).
>> Although I cannot rule out that the fonts I used have wrong font
>> information, but my inclination is this could be a bug in
>> "pprdrv_tt2.cpp" (or a related header, e.g.. truetype.h).
>>
>> The translation of each glyphs seems to be handled by following code
>> (around line 594 of pprdrv_tt2.cpp).
>>
>> if( flags & ARGS_ARE_XY_VALUES )
>> {
>> if( arg1 != 0 || arg2 != 0 )
>> stream.printf("gsave %d %d translate\n", topost(arg1),
>> topost(arg2) );
>> }
>>
>> It would be great if someone who is expert on this font issue can look
>> into this.
>> Just in case, arg1=0, arg2=206, font->HUPM= 300, font->unitsPerEm=600
>> for this particular glyph.
>> The later two are used inside "topost".
>> Regards,
>>
>> -JJ
>>
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>
>
--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA
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