Re: [NTG-context] weird behavior of font.feature.effect

2020-11-08 Thread Wolfgang Schuster 

Sylvain Hubert schrieb am 08.11.2020 um 13:02:
On Sun, 8 Nov 2020 at 11:24, Pablo Rodriguez > wrote:


Hi Sylvain,

this is the same as:

   \definefontfamily[face1][rm][gabriola]

Just in case, "slanted" is an already defined feature. It slants the
font.

 >     \definefontfamily[face2][rm][gabriola][it={features:{default,
 > effect={}}}]
 >     \definefontfamily[face3][rm][gabriola][it={features:{default,
 > effect={width=1.0}}}]

BTW, the documentation is clear

(http://texdoc.net/texmf-dist/doc/context/presentations/bachotex/2018/bachotex-2018-fonteffects.pdf#search=fontfeature):
font features should be defined as such before being deployed.

 > Could someone explain:

I will try from what I understand.

 > 1. What does "effect" mean?

A ConTeXt (and not OpenType) font feature?

 > Why does "effect={}" embolden the fonts even though nothing ({}) is
 > given as arguments?
"effect={}" may be reading default values (it might be intended behavior
or not).

But it also could be reading or calculating from previously defined
values.

 > 2. Similarly, what does "width" do? Why does "width=1.0" shrink the
 > width of the line instead of doing nothing?

This might be a bug, because of all the code improvements.

I’m reporting a proper bug.


Thank you very much for the explanation and the bug report!

Just in case it helps: the line shrinking disappears with an additional 
"delta=0":


     \definefontfamily[face3][rm][gabriola][it={features:{default, 
effect={width=1.0, delta=0}}}]



Don't set the values within \definefontfamily:

\definefontfeature [myfeature] [effect={width=1.0, delta=0}]

\definefontfamily[face3][rm][gabriola][it={features:{default,myfeature}}]

Wolfgang
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Re: [NTG-context] weird behavior of font.feature.effect

2020-11-08 Thread Sylvain Hubert 
On Sun, 8 Nov 2020 at 11:24, Pablo Rodriguez  wrote:

> Hi Sylvain,
>
> this is the same as:
>
>   \definefontfamily[face1][rm][gabriola]
>
> Just in case, "slanted" is an already defined feature. It slants the font.
>
> > \definefontfamily[face2][rm][gabriola][it={features:{default,
> > effect={}}}]
> > \definefontfamily[face3][rm][gabriola][it={features:{default,
> > effect={width=1.0}}}]
>
> BTW, the documentation is clear
> (
> http://texdoc.net/texmf-dist/doc/context/presentations/bachotex/2018/bachotex-2018-fonteffects.pdf#search=fontfeature
> ):
> font features should be defined as such before being deployed.
>
> > Could someone explain:
>
> I will try from what I understand.
>
> > 1. What does "effect" mean?
>
> A ConTeXt (and not OpenType) font feature?
>
> > Why does "effect={}" embolden the fonts even though nothing ({}) is
> > given as arguments?
> "effect={}" may be reading default values (it might be intended behavior
> or not).
>
> But it also could be reading or calculating from previously defined values.
>
> > 2. Similarly, what does "width" do? Why does "width=1.0" shrink the
> > width of the line instead of doing nothing?
>
> This might be a bug, because of all the code improvements.
>
> I’m reporting a proper bug.
>

Thank you very much for the explanation and the bug report!

Just in case it helps: the line shrinking disappears with an additional
"delta=0":

\definefontfamily[face3][rm][gabriola][it={features:{default,
effect={width=1.0, delta=0}}}]

Sylvain
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Re: [NTG-context] weird behavior of font.feature.effect

2020-11-08 Thread Pablo Rodriguez 
On 11/8/20 12:57 AM, Sylvain Hubert wrote:
> Dear List,
>
> I'm confused by the result of the following example (see attached):
>
>     \definefontfamily[face1][rm][gabriola][it={features:{default}}]

Hi Sylvain,

this is the same as:

  \definefontfamily[face1][rm][gabriola]

Just in case, "slanted" is an already defined feature. It slants the font.

>     \definefontfamily[face2][rm][gabriola][it={features:{default,
> effect={}}}]
>     \definefontfamily[face3][rm][gabriola][it={features:{default,
> effect={width=1.0}}}]

BTW, the documentation is clear
(http://texdoc.net/texmf-dist/doc/context/presentations/bachotex/2018/bachotex-2018-fonteffects.pdf#search=fontfeature):
font features should be defined as such before being deployed.

> Could someone explain:

I will try from what I understand.

> 1. What does "effect" mean?

A ConTeXt (and not OpenType) font feature?

> Why does "effect={}" embolden the fonts even though nothing ({}) is
> given as arguments?
"effect={}" may be reading default values (it might be intended behavior
or not).

But it also could be reading or calculating from previously defined values.

> 2. Similarly, what does "width" do? Why does "width=1.0" shrink the
> width of the line instead of doing nothing?

This might be a bug, because of all the code improvements.

I’m reporting a proper bug.

Pablo
--
http://www.ousia.tk
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