On 11/24/2018 10:02 PM, Pablo Rodriguez wrote:
Hans,
I added lfbd values for GFS Didot (attached) to get hanging diacritics in Greek.
The attached PDF document is the optput from the following code:
\showframe \setuplayout[topspace=1cm, height=middle, footer=0cm, header=0cm] \definefontfeature[default][default] [protrusion=quality, opbd=yes, script=grek] \definefontfamily[mainface][rm][GFS Didot] \setupbodyfont[mainface, 325pt] \setupalign[hanging] \starttext Α\\Ἀ\\Α\\Ἁ\\Α\\Ἂ\\Α\\Ἃ\\Α\\Ἄ\\Α\\Ἅ\\Α\\Ἆ\\Α\\Ἇ
Ἐ\\Ε\\Ἑ\\Ε\\Ἒ\\Ε\\Ἓ\\Ε\\Ἔ\\Ε\\Ἕ\\Ε
Ἠ\\Η\\Ἡ\\Η\\Ἢ\\Η\\Ἣ\\Η\\Ἤ\\Η\\Ἥ\\Η\\Ἦ\\Η\\Ἧ\\Η
Ἰ\\Ι\\Ἱ\\Ι\\Ἲ\\Ι\\Ἳ\\Ι\\Ἴ\\Ι\\Ἵ\\Ι\\Ἶ\\Ι\\Ἷ\\Ι
Ὀ\\Ο\\Ὁ\\Ο\\Ὂ\\Ο\\Ὃ\\Ο\\Ὄ\\Ο\\Ὅ\\Ο
Ρ\\Ῥ
Ὑ\\Υ\\Ὓ\\Υ\\Ὕ\\Υ\\Ὗ\\Υ
Ὠ\\Ω\\Ὡ\\Ω\\Ὢ\\Ω\\Ὣ\\Ω\\Ὤ\\Ω\\Ὥ\\Ω\\Ὦ\\Ω\\Ὧ\\Ω \stoptext
BTW, to get pure lfbd values, I had to replace line 361 from font-imp-quality lua with:
local p = d/1000
two issues: - no 1000 but units - we need to be able to go less extreme, so we keep factor so something local p = lfactor * d/units
Raw lfbd and rtbd values from the font could be set with protrusion=opentype (or a similar option).
I hope it is clear now why raw values from the font are needed.
fwiw it looks a bit too excessive to me (i'm not sure if graphical elements like those accents which are part of the character needs that much protrusion)
Many thanks for your help,
Pablo
___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________
-- ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------