From: Hans Hagen <j.hagen@xs4all.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>,
Rik Kabel <ConTeXt@rik.users.panix.com>
Subject: Re: Disappearing font feature
Date: Sun, 22 Dec 2019 12:08:09 +0100 [thread overview]
Message-ID: <ffe90932-50aa-e735-060b-bcf197124579@xs4all.nl> (raw)
In-Reply-To: <45f57d1c-868a-e36a-ba24-c033b6b54eb5@rik.users.panix.com>
On 12/22/2019 5:36 AM, Rik Kabel wrote:
> List,
>
> I have a strange case of a font feature disappearing when many fonts are
> used.
>
> In creating a sampler for the Jost* font (free at
> https://indestructibletype.com/Jost.html) and using its feature ss01 to
> get single-storey lower-case a, the font reverts to the default
> two-storey a when many weights are shown. When I create the fonts with
> \definefontfamily, the upright weights are fine and the italic weights
> revert. When I create the fonts with \definefont, the reverse is the case.
>
> Below is the demonstration for the \definefont variation and a snip of
> the failing result.
>
> \definebodyfontenvironment[13pt]
> [interlinespace=15pt]
>
> \setuplayout [backspace=0pt,
> topspace=30pt,
> width=middle,
> height=middle,
> location=middle,
> header=0pt,
> footer=0pt]
>
> \setuppagenumbering [location=]
>
> \definefontfeature [default]
> [default]
> [ss01=yes]
>
> \definefont [JHair] [jost-100-hairline]
> \definefont [JThin] [jost-200-thin]
> \definefont [JLigh] [jost-300-light]
> \definefont [JBook] [jost-400-book]
> \definefont [JMedi] [jost-500-medium]
> \definefont [JSemi] [jost-600-semi]
> \definefont [JBold] [jost-700-bold]
> \definefont [JHeav] [jost-800-heavy]
> \definefont [JBlac] [jost-900-black]
>
> \definefont [JHairI][jost-100-hairlineitalic]
> \definefont [JThinI][jost-200-thinitalic]
> \definefont [JLighI][jost-300-lightitalic]
> \definefont [JBookI][jost-400-bookitalic]
> \definefont [JMediI][jost-500-mediumitalic]
> \definefont [JSemiI][jost-600-semiitalic]
> \definefont [JBoldI][jost-700-bolditalic]
> \definefont [JHeavI][jost-800-heavyitalic]
> \definefont [JBlacI][jost-900-blackitalic]
>
> \startbuffer [Sampler]
> A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
> a b c d e f g h i j k l m n o p q r s t u v w x y z à ë í ô ç
> 1 2 3 4 5 6 7 8 9 0 ` \texttilde\ - = ! @ \# \$ \letterpercent\ ^ \&
> * ( ) _ + [ ] \textbackslash\ ; ' , . / \{ \} \| : " < > ?
> \fontname\font
> \blank [line]
> \stopbuffer
>
> \setupalign [middle]
>
>
> \starttext
> \obeylines
>
> \JHair \getbuffer[Sampler]
> \JThin \getbuffer[Sampler]
> \JLigh \getbuffer[Sampler]
> \JBook \getbuffer[Sampler]
> \JMedi \getbuffer[Sampler]
> \JSemi \getbuffer[Sampler]
> \JBold \getbuffer[Sampler]
> \JHeav \getbuffer[Sampler]
> \JBlac \getbuffer[Sampler]
> \page
> \JHairI \getbuffer[Sampler]
> \JThinI \getbuffer[Sampler]
> \JLighI \getbuffer[Sampler]
> \JBookI \getbuffer[Sampler]
> \JMediI \getbuffer[Sampler]
> \JSemiI \getbuffer[Sampler]
> \JBoldI \getbuffer[Sampler]
> \JHeavI \getbuffer[Sampler]
> \JBlacI \getbuffer[Sampler]
>
> \stoptext
>
> Below is the demonstration for the \definefontfamily variation and a
> snip of the expected result, although the italics fail.
>
> \definebodyfontenvironment[13pt]
> [interlinespace=15pt]
>
> \setuplayout [backspace=0pt,
> topspace=15pt,
> width=middle,
> height=middle,
> location=middle,
> header=0pt,
> footer=0pt]
>
> \setuppagenumbering [location=]
>
> \definefontfeature [default]
> [default]
> [ss01=yes]
> \definefontfamily [up-one]
> [sansserif]
> [Jost]
> [tf={style:hairline,features},
> bf={style:thin,features},
> bi={style:light,features},
> it={style:book,features}]
> \definefontfamily [up-two]
> [sansserif]
> [Jost]
> [tf={style:medium,features},
> bf={style:semi,features},
> bi={style:bold,features},
> it={style:heavy,features}]
> \definefontfamily [up-three]
> [sansserif]
> [Jost]
> [tf={style:black,features},
> bf={style:black,features},
> bi={style:black,features},
> it={style:black,features}]
> \definefontfamily [it-one]
> [sansserif]
> [Jost]
> [tf={style:hairlineitalic,features},
> bf={style:thinitalic,features},
> bi={style:lightitalic,features},
> it={style:bookitalic,features}]
> \definefontfamily [it-two]
> [sansserif]
> [Jost]
> [tf={style:mediumitalic,features},
> bf={style:semiitalic,features},
> bi={style:bolditalic,features},
> it={style:heavyitalic,features}]
> \definefontfamily [it-three]
> [sansserif]
> [Jost]
> [tf={style:blackitalic,features},
> bf={style:blackitalic,features},
> bi={style:blackitalic,features},
> it={style:blackitalic,features}]
>
> \startbuffer [Sampler]
> A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
> a b c d e f g h i j k l m n o p q r s t u v w x y z à ë í ô ç
> 1 2 3 4 5 6 7 8 9 0 ` \texttilde\ - = ! @ \# \$ \letterpercent\ ^ \&
> * ( ) _ + [ ] \textbackslash\ ; ' , . / \{ \} \| : " < > ?
> \fontname\font
> \blank [line]
> \stopbuffer
>
> \setupalign [middle]
>
> \setupbodyfont [up-one,13pt]
>
> \starttext
> \obeylines
>
> \ss\tf\getbuffer [Sampler]
> \ss\bf\getbuffer [Sampler]
> \ss\bi\getbuffer [Sampler]
> \ss\it\getbuffer [Sampler]
> \switchtobodyfont [up-two]
> \ss\tf\getbuffer [Sampler]
> \ss\bf\getbuffer [Sampler]
> \ss\bi\getbuffer [Sampler]
> \ss\it\getbuffer [Sampler]
> \switchtobodyfont [up-three]
> \ss\tf\getbuffer [Sampler]
> \page
> \switchtobodyfont [it-one]
> \ss\tf\getbuffer [Sampler]
> \ss\bf\getbuffer [Sampler]
> \ss\bi\getbuffer [Sampler]
> \switchtobodyfont [it-two]
> \ss\tf\getbuffer [Sampler]
> \ss\bf\getbuffer [Sampler]
> \ss\bi\getbuffer [Sampler]
> \ss\it\getbuffer [Sampler]
> \switchtobodyfont [it-three]
> \ss\tf\getbuffer [Sampler]
> \stoptext
>
>
> Assistance or explanation is welcome. This is just for a sampler -- the
> font with just three weights when used in a real project is fine. I do
> not know if the problem is with the font or with ConTeXt or with my
> expectations.
i donloaded the fonts from
https://github.com/indestructible-type/Jost/tree/master/Finished/otf
and this shows what you run into:
\definefont [JHair] [jost-100-hairline*default]
\definefont [JHairI] [jost-100-hairlineitalic*default]
\definefontfeature[ss01][ss01=yes]
\startbuffer[ss01]
\hbox\bgroup
\char 97\relax
\char 224\relax
\char 225\relax
\char 226\relax
\char 227\relax
\char 228\relax
\char 229\relax
\char 257\relax
\char 259\relax
\char 261\relax
\char 1072\relax
\egroup
\stopbuffer
\starttext
\startlines
{\type{default } \JHair \getbuffer[ss01]}
{\type{enabled } \JHair \addff{ss01}\getbuffer[ss01]}
{\type{disabled} \JHair \subff{ss01}\getbuffer[ss01]}
{\type{default } \JHairI \getbuffer[ss01]}
{\type{enabled } \JHairI\addff{ss01}\getbuffer[ss01]}
{\type{disabled} \JHairI\subff{ss01}\getbuffer[ss01]}
\stoplines
\stoptext
btw, this happens often, like with oldstyle, the wished default is the
hard coded default so one has to enable/disable
now, what you miss is that you define a font without applying any
features ...
Hans
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next prev parent reply other threads:[~2019-12-22 11:08 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-22 4:36 Rik Kabel
2019-12-22 11:08 ` Hans Hagen [this message]
2019-12-22 12:15 ` Floris van Manen
2019-12-22 16:27 ` Rik Kabel
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