On 05/09/2011 08:21 AM, mpsuz...@hiroshima-u.ac.jp wrote:
If further tweak is needed for CJK bluezone, the code would be unmatured, I will disable it by default. In fact, the original demonstration was given by 11pt glyph of WenQuanYi-ZenHei, but your new tweak seems to change the dist value for the glyphs smaller than 17pt I think 17pt is unstable/temporal tuning value and not determined deducively. It makes me afraid that the code includes some ad-hoc parameters and they are not tested well.
You don't have to include it. It's just some my brain storms I want to share with the list.
The numbers are just some guess of mine. It is less aggressive than the numbers I tried at the beginning. When I test it, I meanly focused on 11pt, and tried to not over optimize it.
One effect is that for 意 11pt, it raised the top horizontal edge to the top blue zone. Effectively pushed the dot over the blue zone.
Limiting to 17pt is because I felt that, larger than 16pt, my eyes were more tolerant to the small even bottom line.
Also around 15pt, the best_dist0 raised to 38 and was turned down to 36 by the safe guard in place. wqy-zenhei has an EM of 1024.
How long do you need to find stable values for the tunable parameters? If it is difficult to estimate, I will propose new API to manipulate the parameters by FT2 clients.
That's even better. Just don't know how many clients will use the API. Maybe through fontconfig?
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