Re: [NTG-context] optical bounds with hanging diacritics
On 11/27/18 12:33 AM, Hans Hagen wrote:
> On 11/24/2018 10:02 PM, Pablo Rodriguez wrote:
>> [...]
>> 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
Many thanks for your reply, Hans.
The new definition is fine for me.
BTW, I have an issue issue with the font feature. I cannot have both
default and the opbd as font features, such as in:
\setuplayout[topspace=1cm, height=middle, footer=0cm, header=0cm]
\definefontfeature[newfeature]
[protrusion=opentype, opbd=yes, script=grek]
\definefontfamily[mainface][rm]
[GFS Didot][features={default, newfeature}]
\setupbodyfont[mainface, 325pt]
\setupalign[hanging]
\starttext
Α\\Ἇ
\stoptext
I guess this may be related to "script=grek", but I don’t know whehter
I’m doing something wrong.
>> 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)
I agree. These are excessive values, but this is rather a very
particular case.
Hanging diacritics are used only in poetry, not in prose:
https://www.researchgate.net/publication/2417759_From_Unicode_to_Typography_a_Case_Study_the_Greek_Script
(section “1.6.2 Hanging Diacritics” on page 21).
Many thanks for your help,
Pablo
--
http://www.ousia.tk
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Re: [NTG-context] optical bounds with hanging diacritics
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 - ___ 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 ___
Re: [NTG-context] optical bounds with hanging diacritics
On 11/25/18 7:26 PM, luigi scarso wrote: > On Sun, Nov 25, 2018 at 7:24 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: > > > the pdf is too big .. I have unlocked it for this time... Sorry, Luigi, I forgot that we had a maximum size for the message (attachments included). The PDF document isn’t that big (30KB). The font with the OT lfbd values is a bigger file (177KB). Pablo -- http://www.ousia.tk ___ 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 ___
Re: [NTG-context] optical bounds with hanging diacritics
On Sun, Nov 25, 2018 at 7:24 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: > the pdf is too big .. I have unlocked it for this time... -- luigi ___ 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 ___
