[NTG-context] Incorrect rendering of * with UTF math fonts
Hi,
Using * in superscripts gives wrong glyph size and spacing.
For example, with LM math everyhing looks fine:
\starttext
$x^*$ vs $x^{\ast}$
\stoptext
With Cambria, the result is OK (but you can still see the differences in
the spacing of * in x^*)
\usemodule[simplefonts]
\setmathfont[Cambria]
\starttext
$x^*$ vs $x^{\ast}$
\stoptext
With Neo Euler, $x^*$ look really bad.
\usemodule[simplefonts]
\setmathfont[Cambria]
\starttext
$x^*$ vs $x^{\ast}$
\stoptext
I cannot figure out why this is happening. It definitely looks like a bug
at the context end rather than a bug with the fonts.
Aditya
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Re: [NTG-context] Incorrect rendering of * with UTF math fonts
Hi Aditya,
I tried your code: as you say with LM there is no problem, but with the
simplefonts module nothing i stypeset since I get an error message:
\3>simplefonts:1-12pt-mm-mr--3
\font_helpers_preset_math_family_indeed ...csname
\scriptfont #1\csname \??f...
\font_helpers_set_math_family ...amily_indeed #1#2
\else \font_helpers_set_ma...
\font_helpers_bidirectional_mathstrategy_nop ...r
\textfont \c_font_fam_mr_r...
...bidirectional_mathstrategy_nop
\fi \font_helpers_apply_co...
\font_helpers_synchronize_math ...math_strategies
\fi
...
This is with ConTeXt ver: 2012.02.21 00:51 MKIV.
Best regards: OK
On 22 févr. 2012, at 20:52, Aditya Mahajan wrote:
> Hi,
>
> Using * in superscripts gives wrong glyph size and spacing.
>
> For example, with LM math everyhing looks fine:
>
> \starttext
> $x^*$ vs $x^{\ast}$
> \stoptext
>
> With Cambria, the result is OK (but you can still see the differences in the
> spacing of * in x^*)
>
> \usemodule[simplefonts]
> \setmathfont[Cambria]
> \starttext
> $x^*$ vs $x^{\ast}$
> \stoptext
>
> With Neo Euler, $x^*$ look really bad.
>
> \usemodule[simplefonts]
> \setmathfont[Cambria]
> \starttext
> $x^*$ vs $x^{\ast}$
> \stoptext
>
> I cannot figure out why this is happening. It definitely looks like a bug at
> the context end rather than a bug with the fonts.
>
> Aditya
>
> ___
> 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
> webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive : http://foundry.supelec.fr/projects/contextrev/
> wiki : http://contextgarden.net
> ___
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Re: [NTG-context] Incorrect rendering of * with UTF math fonts
Am 22.02.2012 um 21:31 schrieb Otared Kavian: > Hi Aditya, > > I tried your code: as you say with LM there is no problem, but with the > simplefonts module nothing i stypeset since I get an error message: Do you have Cambria? Wolfgang ___ 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 webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___
Re: [NTG-context] Incorrect rendering of * with UTF math fonts
Yes, I have it in /Library/Fonts/Microsoft/Cambria.ttf Maybe is it the wrong version? In my test files I have other instances where Cambria is used and correctly typeset, but with the new versions they don't typeset anymore. Best regards: OK On 22 févr. 2012, at 21:47, Wolfgang Schuster wrote: > > Am 22.02.2012 um 21:31 schrieb Otared Kavian: > >> Hi Aditya, >> >> I tried your code: as you say with LM there is no problem, but with the >> simplefonts module nothing i stypeset since I get an error message: > > Do you have Cambria? > > Wolfgang > ___ > 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 > webpage : http://www.pragma-ade.nl / http://tex.aanhet.net > archive : http://foundry.supelec.fr/projects/contextrev/ > wiki : http://contextgarden.net > ___ ___ 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 webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___
Re: [NTG-context] Incorrect rendering of * with UTF math fonts
Am 22.02.2012 um 22:28 schrieb Otared Kavian: > Yes, I have it in > /Library/Fonts/Microsoft/Cambria.ttf > Maybe is it the wrong version? For math you need “Cambria Math.ttf” or “Cambria.ttc”. > In my test files I have other instances where Cambria is used and correctly > typeset, but with the new versions they don't typeset anymore. Cambria works for me: \usemodule[simplefonts] \setmainfont[Cambria] \setmathfont[Cambria] \starttext \input knuth \startformula 1 + 1 = 2 \stopformula \stoptext Wolfgang ___ 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 webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___
Re: [NTG-context] Incorrect rendering of * with UTF math fonts
On Wed, Feb 22, 2012 at 02:52:22PM -0500, Aditya Mahajan wrote:
> Hi,
>
> Using * in superscripts gives wrong glyph size and spacing.
>
> For example, with LM math everyhing looks fine:
>
> \starttext
> $x^*$ vs $x^{\ast}$
> \stoptext
For me this is typeset using LM Type1 fonts, not the OpenType LM math
font which explains why both are correct, after adding
\setupbodyfont[modern] the first * is raised than the other but still
readable.
> With Cambria, the result is OK (but you can still see the
> differences in the spacing of * in x^*)
>
> \usemodule[simplefonts]
> \setmathfont[Cambria]
> \starttext
> $x^*$ vs $x^{\ast}$
> \stoptext
>
> With Neo Euler, $x^*$ look really bad.
>
> \usemodule[simplefonts]
> \setmathfont[Cambria]
> \starttext
> $x^*$ vs $x^{\ast}$
> \stoptext
>
> I cannot figure out why this is happening. It definitely looks like
> a bug at the context end rather than a bug with the fonts.
It seems that * in math mode should map to U+2217 (which is what \ast
maps to) and not the ASCII asterisk.
Regards,
Khaled
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Re: [NTG-context] Incorrect rendering of * with UTF math fonts
On Wed, 22 Feb 2012, Khaled Hosny wrote:
On Wed, Feb 22, 2012 at 02:52:22PM -0500, Aditya Mahajan wrote:
Hi,
Using * in superscripts gives wrong glyph size and spacing.
For example, with LM math everyhing looks fine:
\starttext
$x^*$ vs $x^{\ast}$
\stoptext
For me this is typeset using LM Type1 fonts, not the OpenType LM math
font which explains why both are correct, after adding
\setupbodyfont[modern] the first * is raised than the other but still
readable.
With Cambria, the result is OK (but you can still see the
differences in the spacing of * in x^*)
\usemodule[simplefonts]
\setmathfont[Cambria]
\starttext
$x^*$ vs $x^{\ast}$
\stoptext
With Neo Euler, $x^*$ look really bad.
\usemodule[simplefonts]
\setmathfont[Cambria]
\starttext
$x^*$ vs $x^{\ast}$
\stoptext
I cannot figure out why this is happening. It definitely looks like
a bug at the context end rather than a bug with the fonts.
It seems that * in math mode should map to U+2217 (which is what \ast
maps to) and not the ASCII asterisk.
Indeed. Making this change gives the correct result.
@Hans, can you make the following change in char-def.lua
--- char-def.old2012-02-22 17:18:05.0 -0500
+++ char-def.lua2012-02-22 17:19:06.0 -0500
@@ -382,8 +382,7 @@
description="ASTERISK",
direction="on",
linebreak="al",
- mathclass="binary",
- mathname="ast",
+ mathsymbol=0x2217,
unicodeslot=0x002A,
},
{
Aditya
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