Kerning and Minion Pro

Kerning and Minion Pro

[Andreas Harder]

Hello,

I've a curious problem: With Palatino or Latin Modern kerning seems to work as intended, but what's the matter with Minion (example below)?


\setupcolors[state=start]

% \mainlanguage[de]

\definefontfeature[basekerned][default][mode=base]
\definefontfeature[nodekerned][default][mode=node]
\definefontfeature[nonekerned][default][mode=base,kern=no]

\starttext

\startbuffer[KernTest]
  \startlines
    Av, AV,
    LT, LV, Ly,
    TA, To, Ty, Te, T.
    Va, V.,
    Ya, Yo, Y.
  \stoplines
\stopbuffer

\startTEXpage % Minion Pro
  \startoverlay
    {\vbox{\red     \definedfont[name:MinionPro-Regular*nonekerned at 100pt]\getbuffer[KernTest] }}
    {\vbox{\blue    \definedfont[name:MinionPro-Regular*basekerned at 100pt]\getbuffer[KernTest] }}
    {\vbox{\darkgray\definedfont[name:MinionPro-Regular*nodekerned at 100pt]\getbuffer[KernTest] }}
  \stopoverlay
\stopTEXpage

\startTEXpage % Latin Modern
  \startoverlay
    {\vbox{\red     \definedfont[Serif*nonekerned at 100pt]\getbuffer[KernTest] }}
    {\vbox{\blue    \definedfont[Serif*basekerned at 100pt]\getbuffer[KernTest] }}
    {\vbox{\darkgray\definedfont[Serif*nodekerned at 100pt]\getbuffer[KernTest] }}
  \stopoverlay
\stopTEXpage

\startTEXpage % Palatino
  \startoverlay
    {\vbox{\red     \definedfont[file:texgyrepagella-regular*nonekerned at 100pt]\getbuffer[KernTest] }}
    {\vbox{\blue    \definedfont[file:texgyrepagella-regular*basekerned at 100pt]\getbuffer[KernTest] }}
    {\vbox{\darkgray\definedfont[file:texgyrepagella-regular*nodekerned at 100pt]\getbuffer[KernTest] }}
  \stopoverlay
\stopTEXpage

\stoptext


This is luaTeX, Version snapshot-0.31.3
ConTeXt  ver: 2009.01.14 11:29 MKIV


Thanks,
    Andreas


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Re: Kerning and Minion Pro

[Taco Hoekwater]

Andreas Harder wrote:
> Hello,
> 
> I've a curious problem: With Palatino or Latin Modern kerning seems to 
> work as intended, but what's the matter with Minion (example below)?

This appears to be caused by the fact that in MinionPro most
(not all, but most) of the kerning is specified via kern classes.

Best wishes,
Taco
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________

Re: Kerning and Minion Pro

[Hans Hagen]

Andreas Harder wrote:
> 
>  >> I've a curious problem: With Palatino or Latin Modern kerning seems to
>  >> work as intended, but what's the matter with Minion (example below)?
> 
>  > This appears to be caused by the fact that in MinionPro most
>  > (not all, but most) of the kerning is specified via kern classes.
> 
> Than you for explanation! But, is it possible to activate kerning for 
> MinionPro?
> 
> And what about the following example?
> 
> \startbuffer[KernTest]
>   \startlines
>     Tänze,
>     Tanze,
>     Väter,
>     Vater,
>   \stoplines
> \stopbuffer
> 
> The kerned „Väter“ can't be right (with MinionPro).

i uploaded a beta that hopefully fixes it

btw, you can say:

\enabletrackers[otf.kerns]

and see what is injected between glyphs

thanks for the test files

Hans


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               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
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___________________________________________________________________________________
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
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archive  : https://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: Kerning and Minion Pro

[Taco Hoekwater]

Andreas Harder wrote:
>  >> I've a curious problem: With Palatino or Latin Modern kerning seems to
>  >> work as intended, but what's the matter with Minion (example below)?
> 
>  > This appears to be caused by the fact that in MinionPro most
>  > (not all, but most) of the kerning is specified via kern classes.
> 
> Than you for explanation! But, is it possible to activate kerning for 
> MinionPro?
> And what about the following example?
> 
> \startbuffer[KernTest]
>   \startlines
>     Tänze,
>     Tanze,
>     Väter,
>     Vater,
>   \stoplines
> \stopbuffer
> 
> The kerned „Väter“ can't be right (with MinionPro).

Here the blue (= base mode) actually looks correct, but that just means 
that mkiv needs a patch: the base kerns are also generated by the mkiv
font loader, after all. It probably got confused by the kerning classes.

I expect that it actually did work earlier (pre 0.31), and that what you
see now is just a regression. But it is better for me to wait for Hans'
comment than to dive into the code  and maybe spend hours on a problem
that would take him 10 seconds.

Best wishes,
Taco


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___________________________________________________________________________________

Re: Kerning and Minion Pro

[Andreas Harder]

 >> I've a curious problem: With Palatino or Latin Modern kerning  
seems to
 >> work as intended, but what's the matter with Minion (example below)?

 > This appears to be caused by the fact that in MinionPro most
 > (not all, but most) of the kerning is specified via kern classes.

Than you for explanation! But, is it possible to activate kerning for  
MinionPro?

And what about the following example?

\startbuffer[KernTest]
   \startlines
     Tänze,
     Tanze,
     Väter,
     Vater,
   \stoplines
\stopbuffer

The kerned „Väter“ can't be right (with MinionPro).

Greetings,
	Andreas

___________________________________________________________________________________
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://tex.aanhet.net
archive  : https://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________