what does rscale=auto achieve?

what does rscale=auto achieve?

[Pablo Rodriguez]

Dear list,

I have the following sample:

    \definefallbackfamily
        [mainface]
        [rm]
        [DejaVu Serif]
        [preset=range:cyrillic, rscale=auto]

    \definefallbackfamily
        [mainface]
        [rm]
        [GFS Didot]
        [preset=range:greek, rscale=auto]

    \definefontfamily
        [mainface]
        [rm]
        [TeX Gyre Termes]

    \setupbodyfont[mainface]

    \starttext
    \startTEXpage[offset=1em]
    аaα
    \stopTEXpage
    \stoptext

I thought that "rscale=auto" would scale the typeface so that its
x-height would match the x-height from the main typeface.

Since I don’t see any scaling, could anyone explain me what I’m missing?

Many thanks for your help,


Pablo
-- 
http://www.ousia.tk
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Re: what does rscale=auto achieve?

[Wolfgang Schuster]

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> Pablo Rodriguez <mailto:oinos@gmx.es>
> 15. Mai 2016 um 16:58
> Dear list,
>
> I have the following sample:
>
> \definefallbackfamily
> [mainface]
> [rm]
> [DejaVu Serif]
> [preset=range:cyrillic, rscale=auto]
>
> \definefallbackfamily
> [mainface]
> [rm]
> [GFS Didot]
> [preset=range:greek, rscale=auto]
>
> \definefontfamily
> [mainface]
> [rm]
> [TeX Gyre Termes]
>
> \setupbodyfont[mainface]
>
> \starttext
> \startTEXpage[offset=1em]
> аaα
> \stopTEXpage
> \stoptext
>
> I thought that "rscale=auto" would scale the typeface so that its
> x-height would match the x-height from the main typeface.
>
> Since I don’t see any scaling, could anyone explain me what I’m missing?
1. Only \definetypeface supports rscale=auto, the \definefontfallback 
accepts only number values for the rscale key.

2. You have to use scale instead of rscale for the \definefontfamily and 
\definefallbackfamily commands for the moment but I will change it to 
rscale.

Wolfgang

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___________________________________________________________________________________

Re: what does rscale=auto achieve?

[Pablo Rodriguez]

On 05/15/2016 07:39 PM, Wolfgang Schuster wrote:
>> Pablo Rodriguez 15. Mai 2016 um 16:58
>> [...]
>> I thought that "rscale=auto" would scale the typeface so that its
>> x-height would match the x-height from the main typeface.
>>
>> Since I don’t see any scaling, could anyone explain me what I’m missing?
> 1. Only \definetypeface supports rscale=auto, the \definefontfallback
> accepts only number values for the rscale key.
> 
> 2. You have to use scale instead of rscale for the \definefontfamily and
> \definefallbackfamily commands for the moment but I will change it to
> rscale.

Many thanks for your reply, Wolfgang.

I’m not sure whether I get your second point: will you implement
rscale=auto for \definefontfamily and \definefallbackfamily or will you
disable scale in those two commands?

Many thanks for your help,


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

Re: what does rscale=auto achieve?

[Wolfgang Schuster]

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> Pablo Rodriguez <mailto:oinos@gmx.es>
> 15. Mai 2016 um 20:03
>
> Many thanks for your reply, Wolfgang.
>
> I’m not sure whether I get your second point: will you implement
> rscale=auto for \definefontfamily and \definefallbackfamily or will you
> disable scale in those two commands?
I’m changing the name of the key from scale to rscale.

Wolfgang

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___________________________________________________________________________________

Re: what does rscale=auto achieve?

[Pablo Rodriguez]

On 05/15/2016 08:05 PM, Wolfgang Schuster wrote:
>> Pablo Rodriguez <mailto:oinos@gmx.es>
>> 15. Mai 2016 um 20:03
>>
>> Many thanks for your reply, Wolfgang.
>>
>> I’m not sure whether I get your second point: will you implement
>> rscale=auto for \definefontfamily and \definefallbackfamily or will you
>> disable scale in those two commands?
>
> I’m changing the name of the key from scale to rscale.

As far as I concerned, please consider that this would break backwards
compatibility.

Relative scaling is a feature that might pass unnoticed until it is to
late to fix anything. And this would be a problems for sources that have
this option already defined.

Many thanks for yuor help,


Pablo
-- 
http://www.ousia.tk
___________________________________________________________________________________
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________

Re: what does rscale=auto achieve?

[Wolfgang Schuster]

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> Pablo Rodriguez <mailto:oinos@gmx.es>
> 15. Mai 2016 um 20:41
>
> As far as I concerned, please consider that this would break backwards
> compatibility.
I’m aware of this but I try to stay as close a possible to the 
\definetypeface command
which uses rscale as key. I planned this also a while ago and added 
rscale as
valid key in the command interface (i-context.pdf).

Wolfgang

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___________________________________________________________________________________
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________