new korean font (and mapping table)

[alsoduck]

recently(about 1 yr ago) google font released windows' default korean font with OFL 1.1 license.
you can see this repository
https://github.com/googlefonts/gulim/
https://github.com/googlefonts/batang/

'Gulim' repo contains below font:
Gulim (proportional)
GulimChe (monospace)
Dotum (proportional)
DotumChe (monospace)

Gulim is rounded sans-serif style font. (bitmap is not rounded style)
Dotum is sans-serif style font.

'Batang' repo contains below font:
Batang (proportional)
BatangChe (monospace)
Gungsuh (proportional)
GungsuhChe (monospace)

Batang is normal serif style font.
Gungsuh is design font.

In source folder, there's four TTF files in each repo.
each ttf include 11x11, 12x12, 13x13, 14x14, 15x15, 16x16, 17x17, 18x18, 19x19, 20x20, 21x21, 22x22, 23x23, 24x24, 25x25 bitmap fonts.
total 15 * 8 = 120 types of bitmap font.
there's a wide range of choices.

windows default bitmap font is better than unifont's korean glyph. It's easier to read.

can you add these fonts to u8g2?

[olikraus]

Which unicodes are required for those fonts? I mean, which unicode glyphs are required to write korean words?

I mean, in history I had been using the following glyphs:

Does this make sense? Are most often used korean glyphs included?
I had been using this list: https://github.com/olikraus/u8g2/blob/master/tools/font/build/korean1.map
and this list: https://github.com/olikraus/u8g2/blob/master/tools/font/build/korean2.map

Do these lists of glyphs make sense?

[alsoduck]

Yes. It's nice.
By just looking at the file, korean2 list looks like KS X 1001 standard(2350 korean glyphs, aka wansung), and korean1 list looks like stripped down version of korean2.
korean1 lacks many glyphs, but anyway useful for avr devices.

The KS X 1001 standard is sufficient for use as it includes most of the glyphs frequently used in Korean.

If you want to include more glyphs, I recommend Adobe-KR-9(2780 korean glyphs).
these two standards are widely used in font design, so you can follow these lists.

[olikraus]

is there any link, where I could download the KS X 1001 list of unicode numbers?

[alsoduck]

https://www.unicode.org/Public/MAPPINGS/OBSOLETE/EASTASIA/KSC/KSX1001.TXT
line 1069-3418 is full list of KS X 1001 korean glyphs.

[olikraus]

thanks!

not sure when I find time to work on this...

[olikraus]

ok, it is still confusing, the above mentioned link contains much more glyphs. Is there any list from where I get the 2350 korean glyphs?

One more point: I can't add all the fonts in all sizes to u8g2. That would increase size of u8g2 too much.
Instead my suggestion is to select one font (probably a sans serif font) and add 3 sizes to u8g2.
Also the list of glyphs, which I should add has to be defined by you. I could use the korean1/2 map from above, if you want.

you can build your own fonts easily, there are tutorials and also online tools available...

[alsoduck]

I checked the map file and korean2 map file is exactly 2350 glyphs following KS X 1001 standard. so we can use korean1/2 as we have done before.
'Gulim'(or 'GulimChe' if u8g2 does not support proportional font) font size 12x12, 14x14, 16x16, will be suitable for most use cases.

ps: I have experience with building custom fonts for u8g2

[olikraus]

Great, I have added ont size 11x11, 12x12, 14x14, 16x16
Thanks for the input