On 12/9/2018 8:54 PM, Pablo Rodriguez wrote:
On 12/9/18 6:53 PM, Hans Hagen wrote:
On 12/9/2018 5:35 PM, Pablo Rodriguez wrote:
[...] -Is there any way that I can apply pure raw lfbd/rtbd values to protrusion with no other protrusion calculation at all in opbd?
you can create your own vectors if you want
My own vectors wouldn’t solve the issue, because the variable would be:
lfbd(Ὧ) = glyph.width(Ω) - glyph.width(Ὧ)
I need to place glyphs accurately, not characters. Character dimensions wouldn’t help to get hanging diacritics.
well, these dimensions are available so one could use them in constructing additional lfbd feature specifications (add f eatures runtime)
-In order to avoid editing all the Greek fonts to get hanging diacritics: is there any way to replicate the lfbd feature with "fonts.handlers.otf.addfeature"?
probably with some lua magic one can do a lot but these are typical things i do when i need them (also because one needs to check the whole of unicode and cook up categories, this kind of stuff is: do it all robust and well or don't do it; also one doesn't know how consistent font designs are)
The variable is so simple that the glyph with diacritical marks should be placed in the beginning of the line as it had no such marks.
the mechanism is more complex: the linebreak algorithm has to take this into account (both ends of a potential line) and also look over e.g. par starts and so Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------