Re: [NTG-context] math: ± and ∓ are shifted
On 4/5/2013 2:16 AM, Khaled Hosny wrote:
On Fri, Apr 05, 2013 at 12:55:40AM +0200, Hans Hagen wrote:
On 4/5/2013 12:13 AM, Aditya Mahajan wrote:
On Fri, 5 Apr 2013, Hans Hagen wrote:
On 4/4/2013 11:44 PM, Aditya Mahajan wrote:
On Thu, 4 Apr 2013, Xenia wrote:
Hi context list,
I noticed that the ∓ sign is a little higher than the ± sign, so that
the + signs are at the same height. But this looks strange and
should be
changed.
Indeed. These look very odd. I tested this with cambria and the outcome
is similar, so this is not a font bug, but something wrong in ConTeXt's
math handling.
I'm not sure if I understand the issue
- lm has + and - touching with the + in the same position as the
regular +
- cambria has a gap between + and - and moves the + up and down
Afaik context isn't doing any magic here as these are precomposed
glyphs that directly map.
$a \ruledhbox{$+$} b \ruledhbox{$-$} c$
$a \ruledhbox{$±$} b \ruledhbox{$∓$} c$
they are 'binary' in math mode, just like + and -
The question is not about the shape of the glyph, but their location.
But after looking at the output of latex for CM and Cambria, I am no
longer sure what the correct output should be. For Cambria, ConTeXt and
LaTeX give similar outputs. For CM/LM they give different outputs.
it looks like the open type version has a fitting boundingbox while
the type 1 variants have a bit of the + sticking out:
CFF fonts do not store bounding box info anywhere, the engine just
calculates it based on glyph outlines. For TFM fonts the metrics can be
adjusted to achieve specific alignment.
Sure, but one can 'cheat' with the boundingboxes as they're not cropboxes.
It's no big deal to adapt some metrics in mkiv, but best have the font
do the job.
Hans
--
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
| www.pragma-pod.nl
-
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Re: [NTG-context] math: ± and ∓ are shifted
On 4/5/2013 9:32 AM, Hans Hagen wrote:
On 4/5/2013 2:16 AM, Khaled Hosny wrote:
On Fri, Apr 05, 2013 at 12:55:40AM +0200, Hans Hagen wrote:
On 4/5/2013 12:13 AM, Aditya Mahajan wrote:
On Fri, 5 Apr 2013, Hans Hagen wrote:
On 4/4/2013 11:44 PM, Aditya Mahajan wrote:
On Thu, 4 Apr 2013, Xenia wrote:
Hi context list,
I noticed that the ∓ sign is a little higher than the ± sign, so
that
the + signs are at the same height. But this looks strange and
should be
changed.
Indeed. These look very odd. I tested this with cambria and the
outcome
is similar, so this is not a font bug, but something wrong in
ConTeXt's
math handling.
I'm not sure if I understand the issue
- lm has + and - touching with the + in the same position as the
regular +
- cambria has a gap between + and - and moves the + up and down
Afaik context isn't doing any magic here as these are precomposed
glyphs that directly map.
$a \ruledhbox{$+$} b \ruledhbox{$-$} c$
$a \ruledhbox{$±$} b \ruledhbox{$∓$} c$
they are 'binary' in math mode, just like + and -
The question is not about the shape of the glyph, but their location.
But after looking at the output of latex for CM and Cambria, I am no
longer sure what the correct output should be. For Cambria, ConTeXt and
LaTeX give similar outputs. For CM/LM they give different outputs.
it looks like the open type version has a fitting boundingbox while
the type 1 variants have a bit of the + sticking out:
CFF fonts do not store bounding box info anywhere, the engine just
calculates it based on glyph outlines. For TFM fonts the metrics can be
adjusted to achieve specific alignment.
Sure, but one can 'cheat' with the boundingboxes as they're not cropboxes.
It's no big deal to adapt some metrics in mkiv, but best have the font
do the job.
Experimental in beta:
\definefontfeature [lm-math] [mathdimensions=signs]
\starttext
\startTEXpage[offset=10pt]
$x \ruledhbox{$\pm$} x \ruledhbox{$\mp$} x$
\stopTEXpage
\stoptext
(explanation in font manual, not yet uploaded)
Hans
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
| 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/listinfo/ntg-context
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archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___
[NTG-context] math: ± and ∓ are shifted
Hi context list,
I noticed that the ∓ sign is a little higher than the ± sign, so that
the + signs are at the same height. But this looks strange and should be
changed.
$ context --version
mtx-context | ConTeXt Process Management 0.60
mtx-context | current version: 2013.03.24 15:11
Thanks,
Xenia
(/home/maja/context/tex/texmf-context/tex/context/base/cont-yes.mkiv
ConTeXt ver: 2013.03.24 15:11 MKIV fmt: 2013.3.24 int: english/english
system 'cont-new.mkiv' loaded
(/home/maja/context/tex/texmf-context/tex/context/base/cont-new.mkiv
system beware: some patches loaded from cont-new.mkiv
)
system files jobname 'plus_minus', input 'plus_minus', result 'plus_minus'
fontslatin modern fonts are not preloaded
languageslanguage 'en' is active
(plus_minus.tex{/home/maja/context/tex/texmf-context/fonts/map/pdftex/context/mkiv-base.map}
fontspreloading latin modern fonts (second stage)
fontstypescripts unknown library 'loc'
{/home/maja/context/tex/texmf/fonts/map/dvips/lm/lm-math.map}{/home/maja/context/tex/texmf/fonts/map/dvips/lm/lm-rm.map}
fonts'fallback modern rm 12pt' is loaded
backend xmp using file '/home/maja/context/tex/texmf-context/tex/context/base/lpdf-pdx.xml'
pagesflushing realpage 1, userpage 1
) )/home/maja/context/tex/texmf/fonts/opentype/public/lm-math/latinmodern-math.otf/home/maja/context/tex/texmf/fonts/opentype/public/lm/lmroman12-regular.otf
system files start used files
used files 1: filename=cont-yes.mkiv filetype=tex foundname=/home/maja/context/tex/texmf-context/tex/context/base/cont-yes.mkiv usedmethod=database
used files 2: filename=cont-new.mkiv filetype=tex foundname=/home/maja/context/tex/texmf-context/tex/context/base/cont-new.mkiv usedmethod=database
used files 3: filename=lang-us.lua filetype=lua foundname=/home/maja/context/tex/texmf-context/tex/context/patterns/lang-us.lua usedmethod=database
used files 4: filename=plus_minus.tex foundname=plus_minus.tex usedmethod=direct
used files 5: filename=mkiv-base.map filetype=map format=map foundname=/home/maja/context/tex/texmf-context/fonts/map/pdftex/context/mkiv-base.map usedmethod=database
used files 6: filename=lm.lfg filetype=tex foundname=/home/maja/context/tex/texmf-context/tex/context/fonts/lm.lfg usedmethod=database
used files 7: filename=lm-math.lfg filetype=tex foundname=/home/maja/context/tex/texmf-context/tex/context/fonts/lm-math.lfg usedmethod=database
used files 8: filename=lm-math.map filetype=map format=map foundname=/home/maja/context/tex/texmf/fonts/map/dvips/lm/lm-math.map usedmethod=database
used files 9: filename=lm-rm.map filetype=map format=map foundname=/home/maja/context/tex/texmf/fonts/map/dvips/lm/lm-rm.map usedmethod=database
used files 10: filename=lmroman12-regular filetype=otf format=otf foundname=/home/maja/context/tex/texmf/fonts/opentype/public/lm/lmroman12-regular.otf usedmethod=database
used files 11: filename=latinmodern-math.otf filetype=opentypefonts foundname=/home/maja/context/tex/texmf/fonts/opentype/public/lm-math/latinmodern-math.otf usedmethod=database
used files 12: filename=latinmodern-math.otf filetype=otf format=otf foundname=/home/maja/context/tex/texmf/fonts/opentype/public/lm-math/latinmodern-math.otf usedmethod=database
used files 13: filename=lpdf-pdx.xml filetype=tex foundname=/home/maja/context/tex/texmf-context/tex/context/base/lpdf-pdx.xml usedmethod=database
system files stop used files
system structure start used structure
used structure text: plus_minus
system structure stop used structure
system files start used files
used file 1: filename=cont-yes.mkiv filetype=tex foundname=/home/maja/context/tex/texmf-context/tex/context/base/cont-yes.mkiv usedmethod=database
used file 2: filename=cont-new.mkiv filetype=tex foundname=/home/maja/context/tex/texmf-context/tex/context/base/cont-new.mkiv usedmethod=database
used file 3: filename=lang-us.lua filetype=lua foundname=/home/maja/context/tex/texmf-context/tex/context/patterns/lang-us.lua usedmethod=database
used file 4: filename=plus_minus.tex foundname=plus_minus.tex usedmethod=direct
used file 5: filename=mkiv-base.map filetype=map format=map foundname=/home/maja/context/tex/texmf-context/fonts/map/pdftex/context/mkiv-base.map usedmethod=database
used file 6: filename=lm.lfg filetype=tex foundname=/home/maja/context/tex/texmf-context/tex/context/fonts/lm.lfg usedmethod=database
used file 7: filename=lm-math.lfg filetype=tex foundname=/home/maja/context/tex/texmf-context/tex/context/fonts/lm-math.lfg usedmethod=database
used file 8: filename=lm-math.map filetype=map format=map foundname=/home/maja/context/tex/texmf/fonts/map/dvips/lm/lm-math.map
Re: [NTG-context] math: ± and ∓ are shifted
On Thu, 4 Apr 2013, Xenia wrote: Hi context list, I noticed that the ∓ sign is a little higher than the ± sign, so that the + signs are at the same height. But this looks strange and should be changed. Indeed. These look very odd. I tested this with cambria and the outcome is similar, so this is not a font bug, but something wrong in ConTeXt's math handling. 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 ___
Re: [NTG-context] math: ± and ∓ are shifted
On 4/4/2013 11:44 PM, Aditya Mahajan wrote:
On Thu, 4 Apr 2013, Xenia wrote:
Hi context list,
I noticed that the ∓ sign is a little higher than the ± sign, so that
the + signs are at the same height. But this looks strange and should be
changed.
Indeed. These look very odd. I tested this with cambria and the outcome
is similar, so this is not a font bug, but something wrong in ConTeXt's
math handling.
I'm not sure if I understand the issue
- lm has + and - touching with the + in the same position as the regular +
- cambria has a gap between + and - and moves the + up and down
Afaik context isn't doing any magic here as these are precomposed glyphs
that directly map.
$a \ruledhbox{$+$} b \ruledhbox{$-$} c$
$a \ruledhbox{$±$} b \ruledhbox{$∓$} c$
they are 'binary' in math mode, just like + and -
Hans
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
| 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/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] math: ± and ∓ are shifted
On Fri, 5 Apr 2013, Hans Hagen wrote:
On 4/4/2013 11:44 PM, Aditya Mahajan wrote:
On Thu, 4 Apr 2013, Xenia wrote:
Hi context list,
I noticed that the ∓ sign is a little higher than the ± sign, so that
the + signs are at the same height. But this looks strange and should be
changed.
Indeed. These look very odd. I tested this with cambria and the outcome
is similar, so this is not a font bug, but something wrong in ConTeXt's
math handling.
I'm not sure if I understand the issue
- lm has + and - touching with the + in the same position as the regular +
- cambria has a gap between + and - and moves the + up and down
Afaik context isn't doing any magic here as these are precomposed glyphs that
directly map.
$a \ruledhbox{$+$} b \ruledhbox{$-$} c$
$a \ruledhbox{$±$} b \ruledhbox{$∓$} c$
they are 'binary' in math mode, just like + and -
The question is not about the shape of the glyph, but their location.
But after looking at the output of latex for CM and Cambria, I am no
longer sure what the correct output should be. For Cambria, ConTeXt and
LaTeX give similar outputs. For CM/LM they give different outputs.
Aditya
test.pdf
Description: Adobe PDF document
test-cm.pdf
Description: Adobe PDF document
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Re: [NTG-context] math: ± and ∓ are shifted
On 4/5/2013 12:13 AM, Aditya Mahajan wrote:
On Fri, 5 Apr 2013, Hans Hagen wrote:
On 4/4/2013 11:44 PM, Aditya Mahajan wrote:
On Thu, 4 Apr 2013, Xenia wrote:
Hi context list,
I noticed that the ∓ sign is a little higher than the ± sign, so that
the + signs are at the same height. But this looks strange and
should be
changed.
Indeed. These look very odd. I tested this with cambria and the outcome
is similar, so this is not a font bug, but something wrong in ConTeXt's
math handling.
I'm not sure if I understand the issue
- lm has + and - touching with the + in the same position as the
regular +
- cambria has a gap between + and - and moves the + up and down
Afaik context isn't doing any magic here as these are precomposed
glyphs that directly map.
$a \ruledhbox{$+$} b \ruledhbox{$-$} c$
$a \ruledhbox{$±$} b \ruledhbox{$∓$} c$
they are 'binary' in math mode, just like + and -
The question is not about the shape of the glyph, but their location.
But after looking at the output of latex for CM and Cambria, I am no
longer sure what the correct output should be. For Cambria, ConTeXt and
LaTeX give similar outputs. For CM/LM they give different outputs.
it looks like the open type version has a fitting boundingbox while the
type 1 variants have a bit of the + sticking out:
\starttext
$x \ruledhbox{$\pm$} x \ruledhbox{$\mp$} x$
\stoptext
Hans
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
| 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/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] math: ± and ∓ are shifted
On Fri, Apr 05, 2013 at 12:55:40AM +0200, Hans Hagen wrote:
On 4/5/2013 12:13 AM, Aditya Mahajan wrote:
On Fri, 5 Apr 2013, Hans Hagen wrote:
On 4/4/2013 11:44 PM, Aditya Mahajan wrote:
On Thu, 4 Apr 2013, Xenia wrote:
Hi context list,
I noticed that the ∓ sign is a little higher than the ± sign, so that
the + signs are at the same height. But this looks strange and
should be
changed.
Indeed. These look very odd. I tested this with cambria and the outcome
is similar, so this is not a font bug, but something wrong in ConTeXt's
math handling.
I'm not sure if I understand the issue
- lm has + and - touching with the + in the same position as the
regular +
- cambria has a gap between + and - and moves the + up and down
Afaik context isn't doing any magic here as these are precomposed
glyphs that directly map.
$a \ruledhbox{$+$} b \ruledhbox{$-$} c$
$a \ruledhbox{$±$} b \ruledhbox{$∓$} c$
they are 'binary' in math mode, just like + and -
The question is not about the shape of the glyph, but their location.
But after looking at the output of latex for CM and Cambria, I am no
longer sure what the correct output should be. For Cambria, ConTeXt and
LaTeX give similar outputs. For CM/LM they give different outputs.
it looks like the open type version has a fitting boundingbox while
the type 1 variants have a bit of the + sticking out:
CFF fonts do not store bounding box info anywhere, the engine just
calculates it based on glyph outlines. For TFM fonts the metrics can be
adjusted to achieve specific alignment.
Regards,
Khaled
___
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Wiki!
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archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
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