Re: [NTG-context] [SPAM] Kerning/italic correction problem with TeX Gyre Bonum font

2018-03-15 Thread Mikael P. Sundqvist 
On Thu, Mar 15, 2018 at 9:24 PM, Mikael P. Sundqvist 
wrote:

> On Thu, Mar 15, 2018 at 11:00 AM, Hans Hagen  wrote:
>
>> On 3/10/2018 7:10 PM, Mikael P. Sundqvist wrote:
>>
>>> Hi Hans and others!
>>>
>>> I don't know if this is a problem with the font itself or if it is
>>> ConTeXt. In any case, the test file below gives strange output (attached).
>>> In particular the space/kerning after $f$ seems to be off.
>>>
>>
>> the fonts have bad glyph dimensions that assume italics always to be
>> applied (as in traditional tex fonts)
>>
>> you can put this at the top of your file:
>>
>> \definefontfeature[mathextra][collapseitalics=yes]
>>
>> awaiting fixed fonts (if they never get fixed we can consider applying
>> this feature by default)
>>
>> Ulrike Fischer reminded me in the StackExchange chat that not so long
>>> time ago there was some similar issue with \mathcal P discussed on this
>>> list. Is it the same problem? (The input $f \tracinglostchars=0
>>> \Uchar"EEEFF$) indeed makes it look better between the $f$ and the
>>> parenthesis.)
>>>
>>> /Mikael
>>>
>>> %%%
>>> \setupbodyfont[bonum]
>>>
>>> \starttext
>>> \startTEXpage[offset=3bp]
>>> (Look at this $f$) and this $f$? (see also $k$?, $x$? and $z$?)
>>>
>>> There might be more problems (like between $t$ and the parenthesis in
>>> $e^t$) is too small.
>>>
>>> The space between $dx$ and the bar is too small:
>>> \startformula
>>> \Bigl|\int_0^\pi\sin x\,dx\Bigr|,
>>> \stopformula
>>> Look at the $f$ and the bar:
>>> \startformula
>>> \Bigl|\int f\Bigr|
>>> \stopformula
>>> The $x$ seems to be outside the fraction:
>>> \startformula
>>> \frac{a^2}{1-x}
>>> \stopformula
>>> We add another one (in fact two) including $f$:
>>> \startformula
>>> f\Bigl(\frac{a+b}{2}\Bigr)
>>> \stopformula
>>>
>>> Also look at $\xi_0$ and $\xi_1$, the subscripts are too far away from
>>> $\xi$. Compare with $f_0$ and $f_1$, $g_0$ and $g_1$.
>>>
>>> With $\delta_f$ and $\delta_g$, I think it looks like the space is too
>>> big, in particular between $\delta$ and $f$, but maybe that is a matter of
>>> taste.
>>>
>>> \stopTEXpage
>>> \stoptext
>>> %%%
>>>
>>>
>>> 
>>> ___
>>> 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/list
>>> info/ntg-context
>>> webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
>>> archive  : https://bitbucket.org/phg/context-mirror/commits/
>>> wiki : http://contextgarden.net
>>> 
>>> ___
>>>
>>>
>>
>> --
>>
>> -
>>   Hans Hagen | PRAGMA ADE
>>   Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>>tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
>> -
>> 
>> ___
>> 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/list
>> info/ntg-context
>> webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
>> archive  : https://bitbucket.org/phg/context-mirror/commits/
>> wiki : http://contextgarden.net
>> 
>> ___
>
>
> Many thanks, Hans! This works well and it makes the font usable.
>
> I will try to contact the TeX Gyre project to report this issue in the
> font.
>
> /Mikael
>

I was too quick. Look at the distance between the integral sign and the
limits in the attached example. Is there a way to fix that?

/Mikael

\definefontfeature[mathextra][collapseitalics=yes]
\setupbodyfont[bonum]

\setupmathematics[
integral=nolimits,
]

\startTEXpage
$\int_a^b f'(t)\,dt=f(b)-f(a)$
\startformula
\int_a^b f'(t)\,dt=f(b)-f(a)
\stopformula
\stopTEXpage


bonumint.pdf
Description: Adobe PDF document
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Re: [NTG-context] [SPAM] Kerning/italic correction problem with TeX Gyre Bonum font

2018-03-15 Thread Mikael P. Sundqvist 
On Thu, Mar 15, 2018 at 11:00 AM, Hans Hagen  wrote:

> On 3/10/2018 7:10 PM, Mikael P. Sundqvist wrote:
>
>> Hi Hans and others!
>>
>> I don't know if this is a problem with the font itself or if it is
>> ConTeXt. In any case, the test file below gives strange output (attached).
>> In particular the space/kerning after $f$ seems to be off.
>>
>
> the fonts have bad glyph dimensions that assume italics always to be
> applied (as in traditional tex fonts)
>
> you can put this at the top of your file:
>
> \definefontfeature[mathextra][collapseitalics=yes]
>
> awaiting fixed fonts (if they never get fixed we can consider applying
> this feature by default)
>
> Ulrike Fischer reminded me in the StackExchange chat that not so long time
>> ago there was some similar issue with \mathcal P discussed on this list. Is
>> it the same problem? (The input $f \tracinglostchars=0 \Uchar"EEEFF$)
>> indeed makes it look better between the $f$ and the parenthesis.)
>>
>> /Mikael
>>
>> %%%
>> \setupbodyfont[bonum]
>>
>> \starttext
>> \startTEXpage[offset=3bp]
>> (Look at this $f$) and this $f$? (see also $k$?, $x$? and $z$?)
>>
>> There might be more problems (like between $t$ and the parenthesis in
>> $e^t$) is too small.
>>
>> The space between $dx$ and the bar is too small:
>> \startformula
>> \Bigl|\int_0^\pi\sin x\,dx\Bigr|,
>> \stopformula
>> Look at the $f$ and the bar:
>> \startformula
>> \Bigl|\int f\Bigr|
>> \stopformula
>> The $x$ seems to be outside the fraction:
>> \startformula
>> \frac{a^2}{1-x}
>> \stopformula
>> We add another one (in fact two) including $f$:
>> \startformula
>> f\Bigl(\frac{a+b}{2}\Bigr)
>> \stopformula
>>
>> Also look at $\xi_0$ and $\xi_1$, the subscripts are too far away from
>> $\xi$. Compare with $f_0$ and $f_1$, $g_0$ and $g_1$.
>>
>> With $\delta_f$ and $\delta_g$, I think it looks like the space is too
>> big, in particular between $\delta$ and $f$, but maybe that is a matter of
>> taste.
>>
>> \stopTEXpage
>> \stoptext
>> %%%
>>
>>
>> 
>> ___
>> 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/list
>> info/ntg-context
>> webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
>> archive  : https://bitbucket.org/phg/context-mirror/commits/
>> wiki : http://contextgarden.net
>> 
>> ___
>>
>>
>
> --
>
> -
>   Hans Hagen | PRAGMA ADE
>   Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
> -
> 
> ___
> 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/list
> info/ntg-context
> webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
> archive  : https://bitbucket.org/phg/context-mirror/commits/
> wiki : http://contextgarden.net
> 
> ___


Many thanks, Hans! This works well and it makes the font usable.

I will try to contact the TeX Gyre project to report this issue in the font.

/Mikael
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Re: [NTG-context] [SPAM] Kerning/italic correction problem with TeX Gyre Bonum font

2018-03-15 Thread Hans Hagen 

On 3/10/2018 7:10 PM, Mikael P. Sundqvist wrote:

Hi Hans and others!

I don't know if this is a problem with the font itself or if it is 
ConTeXt. In any case, the test file below gives strange output 
(attached). In particular the space/kerning after $f$ seems to be off.


the fonts have bad glyph dimensions that assume italics always to be 
applied (as in traditional tex fonts)


you can put this at the top of your file:

\definefontfeature[mathextra][collapseitalics=yes]

awaiting fixed fonts (if they never get fixed we can consider applying 
this feature by default)


Ulrike Fischer reminded me in the StackExchange chat that not so long 
time ago there was some similar issue with \mathcal P discussed on this 
list. Is it the same problem? (The input $f \tracinglostchars=0 
\Uchar"EEEFF$) indeed makes it look better between the $f$ and the 
parenthesis.)


/Mikael

%%%
\setupbodyfont[bonum]

\starttext
\startTEXpage[offset=3bp]
(Look at this $f$) and this $f$? (see also $k$?, $x$? and $z$?)

There might be more problems (like between $t$ and the parenthesis in 
$e^t$) is too small.


The space between $dx$ and the bar is too small:
\startformula
\Bigl|\int_0^\pi\sin x\,dx\Bigr|,
\stopformula
Look at the $f$ and the bar:
\startformula
\Bigl|\int f\Bigr|
\stopformula
The $x$ seems to be outside the fraction:
\startformula
\frac{a^2}{1-x}
\stopformula
We add another one (in fact two) including $f$:
\startformula
f\Bigl(\frac{a+b}{2}\Bigr)
\stopformula

Also look at $\xi_0$ and $\xi_1$, the subscripts are too far away from 
$\xi$. Compare with $f_0$ and $f_1$, $g_0$ and $g_1$.


With $\delta_f$ and $\delta_g$, I think it looks like the space is too 
big, in particular between $\delta$ and $f$, but maybe that is a matter 
of taste.


\stopTEXpage
\stoptext
%%%


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--

-
  Hans Hagen | PRAGMA ADE
  Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
   tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
___
If your question is of interest to others as well, please add an entry to the 
Wiki!

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webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki : http://contextgarden.net
___