Re: [NTG-context] Non-standard font alternatives
> On 13 Dec 2022, at 7:53 pm, Hans Hagen via ntg-context
> wrote:
>
> On 12/13/2022 9:15 AM, Matthew McCabe via ntg-context wrote:
>> Hi list,
>> I'm looking to import a font with medium and light weights (in this case
>> Roboto) and define font alternatives so one can quickly switch to light text
>> just as one would switch to bold text. There is a stackexchange answer from
>> Wolfgang
>> (https://tex.stackexchange.com/questions/303648/context-font-weights
>> <https://tex.stackexchange.com/questions/303648/context-font-weights>) which
>> details a solution to this problem for ConTeXt MkIV but despite my best
>> efforts I haven't been able to get things to work for me. There is the
>> Roboto typescript example on ConTeXt garden but it isn't exactly what I'm
>> looking for as for the document I'm making I would prefer to be able to
>> treat the font weights as alternatives rather than separate families since I
>> will be switching often.
> take a look at type-imp-plex.mkiv (just remove the \s! in your case)
>
> basically you define two typefaces: normal and light and then just switch
> between these, as in:
>
> at the top of your document you say
>
> \usebodyfont[plex] % preloads
> \usebodyfont[plex-light] % preloads
>
> \setupbodyfont[plex] % enables main font
>
> and after that
>
> {\switchtobodyfont[plex-light] }
>
> will do a consistent switch
>
> 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
> -
>
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Thanks for the reply and your help Hans, ok so if I understand correctly the
canonical way to integrate light weight font is to define two typefaces. I
wrote up a typescript for (Sans) Roboto based on the example typescript from
ConTeXt garden using only the Sans variants and it’s working well.
For anyone else looking to do something similar, since the typescript is just a
tex file it seems if one places it in one’s local directory it will be
accessible when ConTeXt generates the pdf. I saved it as type-imp-roboto.tex in
my local directory and used ‘\usebodyfont[roboto]’ and
‘\usebodyfont[roboto-light]’ to preload the fonts as recommended
(\usetypescriptfile didn’t seem to be required).
Here is my typescript, for the Sans Roboto font, pretty much picked out of the
context garden example typescript for Roboto:
\definefontfeature[robotofeatures][
mode=node,
ccmp=yes, % character composition
liga=yes, tlig=yes, % ligatures
pnum=yes,
cpsp=yes, % capital spacing
kern=yes,
language=dflt,
protrusion=quality,
expansion=quality,
]
\definefontfeature[smallcaps][ % use with \addff
smcp=yes, % smallcaps
% c2sc=yes, % caps to smallcaps
]
\starttypescript[sans][roboto,robotosans]
\definefontsynonym[Roboto-Regular][name:robotoregular]
\definefontsynonym[Roboto-Black][name:robotoblack]
\definefontsynonym[Roboto-BlackItalic][name:robotoblackitalic]
\definefontsynonym[Roboto-Bold][name:robotobold]
\definefontsynonym[Roboto-BoldItalic][name:robotobolditalic]
\definefontsynonym[Roboto-Italic][name:robotoitalic]
\definefontsynonym[Roboto-Light][name:robotolight]
\definefontsynonym[Roboto-LightItalic][name:robotolightitalic]
\definefontsynonym[Roboto-Medium][name:robotomedium]
\definefontsynonym[Roboto-MediumItalic][name:robotomediumitalic]
\definefontsynonym[Roboto-Italic][name:robotoitalic]
\definefontsynonym[Roboto-Regular][name:robotoregular]
\definefontsynonym[Roboto-Thin][name:robotothin]
\definefontsynonym[Roboto-ThinItalic][name:robotothinitalic]
\stoptypescript
\starttypescript[sans][roboto,robotosans][name]
\definefontsynonym [SansThin] [Roboto-Thin]
[features=robotofeatures]
\definefontsynonym [SansThinItalic] [Roboto-ThinItalic]
[features=robotofeatures]
\definefontsynonym [SansThinSlanted] [Roboto-ThinItalic]
[features=robotofeatures]
\definefontsynonym [SansLight][Roboto-Light]
[features=robotofeatures]
\definefontsynonym [SansLigh
[NTG-context] Non-standard font alternatives
Hi list, I'm looking to import a font with medium and light weights (in this case Roboto) and define font alternatives so one can quickly switch to light text just as one would switch to bold text. There is a stackexchange answer from Wolfgang (https://tex.stackexchange.com/questions/303648/context-font-weights) which details a solution to this problem for ConTeXt MkIV but despite my best efforts I haven't been able to get things to work for me. There is the Roboto typescript example on ConTeXt garden but it isn't exactly what I'm looking for as for the document I'm making I would prefer to be able to treat the font weights as alternatives rather than separate families since I will be switching often. One can download the exact set of fonts I am using from https://fonts.google.com/specimen/Roboto Here is my code: \definefontalternative[lf] % light \definefontalternative[li] % lightitalic \definefontalternative[md] % medium \definefontalternative[mi] % mediumitalic \starttypescript [sans] [roboto] \definefontsynonym [SansLight][file:Roboto-Light] [features=default] \definefontsynonym [SansLightItalic] [file:Roboto-LightItalic] [features=default] \definefontsynonym [Sans] [file:Roboto-Regular] [features=default] \definefontsynonym [SansItalic] [file:Roboto-Italic] [features=default] \definefontsynonym [SansMedium] [file:Roboto-Medium] [features=default] \definefontsynonym [SansMediumItalic] [file:Roboto-MediumItalic] [features=default] \definefontsynonym [SansBold] [file:Roboto-Bold] [features=default] \definefontsynonym [SansBoldItalic] [file:Roboto-BoldItalic] [features=default] \definefontsynonym [SansCaps] [file:Roboto-Sans] [features=smallcaps] \stoptypescript \starttypescript [sans] [roboto] \definebodyfont [default] [rm] [lf=SansLight sa 1, li=SansLightItalic sa 1, tf=Sans sa 1, it=SansItalic sa 1, md=SansMedium sa 1, mi=SansMediumItalic sa 1, bf=SansBold sa 1, bi=SansBoldItalic sa 1, sc=SansCaps sa 1] \stoptypescript \definetypeface[roboto][rm][sans][roboto][default] \setupbodyfont[roboto] \starttext \lf Light \li LightItalic \tf Regular \it Italic \md Medium \mi MediumItalic \bf Bold \bi BoldItalic \sc SmallCaps \stoptext - The result is entirely in the regular weight default font: What I've tried: 1. I've tried a great deal of alternative \definefontsynonym arguments such as specifying by name, including the full path to each ttf file 2. I played around with different two character \definefontalternative arguments to ensure there was no overlap with existing commands (as far as I am aware the existing set are otherwise undefined) A few things to note: 1. My current version of ConTeXt is 2022.12.09 16:34 2. For portability I have included the ttf files for Roboto in a directory within my project directory and while setting things up I set OSFONTDIR to include this directory and run `mtxrun --script fonts --reload --force` 3. `mtxrun --script fonts --list --all --pattern=Robo` yields: identifier familyname fontname filename subfont instances roboto roboto robotoregular ./fonts/Roboto/Roboto-Regular.ttf robotoblack roboto robotoblack ./fonts/Roboto/Roboto-Black.ttf robotoblackitalicroboto robotoblackitalic ./fonts/Roboto/Roboto-BlackItalic.ttf robotobold roboto robotobold ./fonts/Roboto/Roboto-Bold.ttf robotobolditalic roboto robotobolditalic ./fonts/Roboto/Roboto-BoldItalic.ttf robotoitalic roboto robotoitalic ./fonts/Roboto/Roboto-Italic.ttf robotolight roboto robotolight ./fonts/Roboto/Roboto-Light.ttf robotolightitalicroboto robotolightitalic ./fonts/Roboto/Roboto-LightItalic.ttf robotomedium roboto robotomedium ./fonts/Roboto/Roboto-Medium.ttf robotomediumitalic roboto robotomediumitalic ./fonts/Roboto/Roboto-MediumItalic.ttf robotonormal roboto robotoregular ./fonts/Roboto/Roboto-Regular.ttf robotoregularroboto robotoregular ./fonts/Roboto/Roboto-Regular.ttf robotothin roboto robotothin ./fonts/Roboto/Roboto-Thin.ttf robotothinitalic roboto robotothinitalic ./fonts/Roboto/Roboto-ThinItalic.ttf 4. Using `\definedfont[name:robotomedium*default] hello` and `\definedfont[file:Roboto-Thin*default] hello` (for example) work exactly as expected I hope this isn't a silly question, I'm very new to ConTeXt and have been struggling for a while so thought I may as well ask in case there's something I'm missing, would appreciate any guidance :) Regards, Matt ___ If y
