* xrightarrow is not straight
@ 2018-08-07 8:42 Joshua Moerman
2018-08-07 15:01 ` Alan Braslau
2018-08-07 17:04 ` Aditya Mahajan
0 siblings, 2 replies; 6+ messages in thread
From: Joshua Moerman @ 2018-08-07 8:42 UTC (permalink / raw)
To: mailing list for ConTeXt users
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Hi ConTeXt mailing list,
I am using the extensible arrows and I am not really satisfied with the
looks of it.
The most important issue I have is that the vertical spacing is too much.
You can see this in the attached picture: the left arrow is using
\xrightarrow{\neq a} and the right arrow is using \stackrel{\neq
a}{\longrightarrow}. I think the right one (with stackrel) looks more
natural. Is there a way to setup the vertical spacing?
Another thing I noticed is that the line is not very consistent. This might
be a font issue (I am using Euler). Luckily, the inconsistent overlap is
barely visible when printed.
Thanks again!
Groetjes,
Joshua
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: xrightarrow is not straight
2018-08-07 8:42 xrightarrow is not straight Joshua Moerman
@ 2018-08-07 15:01 ` Alan Braslau
2018-08-07 17:06 ` Aditya Mahajan
2018-08-08 10:39 ` Joshua Moerman
2018-08-07 17:04 ` Aditya Mahajan
1 sibling, 2 replies; 6+ messages in thread
From: Alan Braslau @ 2018-08-07 15:01 UTC (permalink / raw)
To: Joshua Moerman; +Cc: mailing list for ConTeXt users
On Tue, 7 Aug 2018 10:42:01 +0200
"Joshua Moerman" <context@joshuamoerman.nl> wrote:
> Hi ConTeXt mailing list,
>
> I am using the extensible arrows and I am not really satisfied with
> the looks of it.
>
> The most important issue I have is that the vertical spacing is too
> much. You can see this in the attached picture: the left arrow is
> using \xrightarrow{\neq a} and the right arrow is using \stackrel{\neq
> a}{\longrightarrow}. I think the right one (with stackrel) looks more
> natural. Is there a way to setup the vertical spacing?
>
> Another thing I noticed is that the line is not very consistent. This
> might be a font issue (I am using Euler). Luckily, the inconsistent
> overlap is barely visible when printed.
>
> Thanks again!
>
> Groetjes,
> Joshua
>
Hello,
You can also use MetaPost to render math stackers, rather than relying on TeX constructs and any particular font.
For example:
\useMPlibrary[mat]
\definemathstackers
[mp]
[alternative=mp]
\definemathextensible [mp] [leftarrow] ["2190]
\definemathextensible [mp] [rightarrow] ["2192]
\definemathextensible [mp] [leftrightarrow] ["2194]
\definemathextensible [mp] [longleftrightarrow] ["27F7]
\definemathextensible [mp] [rightoverleftarrow] ["21C4]
\definemathextensible [mp] [underbrace] ["FE3DF]
\setupbodyfont [dejavu-condensed,12pt]
\starttext
$\rightarrow{≠a}$
\stoptext
Furthermore, the MP arrow can be tuned
\startMPinitializations
ahlength := .5EmWidth ;
ahvariant := 1 ; % dimpled straight
\stopMPinitializations
as can line widths, etc.
Alan
___________________________________________________________________________________
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://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
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___________________________________________________________________________________
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: xrightarrow is not straight
2018-08-07 8:42 xrightarrow is not straight Joshua Moerman
2018-08-07 15:01 ` Alan Braslau
@ 2018-08-07 17:04 ` Aditya Mahajan
1 sibling, 0 replies; 6+ messages in thread
From: Aditya Mahajan @ 2018-08-07 17:04 UTC (permalink / raw)
To: mailing list for ConTeXt users
On Tue, 7 Aug 2018, Joshua Moerman wrote:
> Another thing I noticed is that the line is not very consistent. This might
> be a font issue (I am using Euler). Luckily, the inconsistent overlap is
> barely visible when printed.
It is a viewer issue. It should also go away if you zoom the pdf.
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://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : http://contextgarden.net
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: xrightarrow is not straight
2018-08-07 15:01 ` Alan Braslau
@ 2018-08-07 17:06 ` Aditya Mahajan
2018-08-07 17:32 ` Alan Braslau
2018-08-08 10:39 ` Joshua Moerman
1 sibling, 1 reply; 6+ messages in thread
From: Aditya Mahajan @ 2018-08-07 17:06 UTC (permalink / raw)
To: mailing list for ConTeXt users
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On Tue, 7 Aug 2018, Alan Braslau wrote:
> Hello,
>
> You can also use MetaPost to render math stackers, rather than relying
> on TeX constructs and any particular font.
>
> For example:
>
>
> \useMPlibrary[mat]
>
> \definemathstackers
> [mp]
> [alternative=mp]
>
> \definemathextensible [mp] [leftarrow] ["2190]
> \definemathextensible [mp] [rightarrow] ["2192]
> \definemathextensible [mp] [leftrightarrow] ["2194]
> \definemathextensible [mp] [longleftrightarrow] ["27F7]
> \definemathextensible [mp] [rightoverleftarrow] ["21C4]
> \definemathextensible [mp] [underbrace] ["FE3DF]
>
> \setupbodyfont [dejavu-condensed,12pt]
>
> \starttext
> $\rightarrow{≠a}$
> \stoptext
>
>
>
> Furthermore, the MP arrow can be tuned
>
> \startMPinitializations
>
> ahlength := .5EmWidth ;
> ahvariant := 1 ; % dimpled straight
>
> \stopMPinitializations
>
> as can line widths, etc.
Shouldn't we use a dedicated MP instance for stackers?
Aditya
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___________________________________________________________________________________
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: xrightarrow is not straight
2018-08-07 17:06 ` Aditya Mahajan
@ 2018-08-07 17:32 ` Alan Braslau
0 siblings, 0 replies; 6+ messages in thread
From: Alan Braslau @ 2018-08-07 17:32 UTC (permalink / raw)
To: Aditya Mahajan; +Cc: mailing list for ConTeXt users
On Tue, 7 Aug 2018 13:06:23 -0400 (EDT)
Aditya Mahajan <adityam@umich.edu> wrote:
> > Furthermore, the MP arrow can be tuned
> >
> > \startMPinitializations
> >
> > ahlength := .5EmWidth ;
> > ahvariant := 1 ; % dimpled straight
> >
> > \stopMPinitializations
> >
> > as can line widths, etc.
>
> Shouldn't we use a dedicated MP instance for stackers?
MPinitializations are shared by all instances (normally), that is if initializations=yes is set in \defineMPinstance.
Alan
___________________________________________________________________________________
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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___________________________________________________________________________________
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: xrightarrow is not straight
2018-08-07 15:01 ` Alan Braslau
2018-08-07 17:06 ` Aditya Mahajan
@ 2018-08-08 10:39 ` Joshua Moerman
1 sibling, 0 replies; 6+ messages in thread
From: Joshua Moerman @ 2018-08-08 10:39 UTC (permalink / raw)
To: 'Alan Braslau', mailing list for ConTeXt users
Dear Alan,
Thanks for the reply! Using \definemathstackers I can set the voffset to adjust the vertical spacing. This is exactly what I needed, thanks!
However, I couldn't use the ahlength variable. I tried different values, but it doesn't seem to change anything (and the current arrowhead is tiny). (Using startMPcode and drawarrow gives a big arrowhead.)
Also I noticed that the content of \rightarrow{...} was not in mathmode, so I tried using middlecommand=\mathermatics (I found this on the wiki and in the docs). But that doesn't change anything. Is this a bug?
Example:
\useMPlibrary[mat]
\definemathstackers [mp]
[alternative=mp, voffset=-.3\mathexheight, middlecommand=\mathematics]
\definemathextensible [mp] [rightarrow] ["2192]
\startMPinitializations
ahlength := EmWidth ; % Does not work?
ahangle := 30 ;
ahvariant := 1 ;
ahdimple := 4/5 ;
\stopMPinitializations
\setuppapersize[A7]
\starttext
$A \rightarrow{$\neq f$ and $\neq g$} B$
$A \rightarrow{\neq f \text{ and } \neq g} B$ % Is not typeset in mathmode
\stoptext
Thanks in advance,
Kind regards,
Joshua
-----Original Message-----
From: Alan Braslau <braslau.list@comcast.net>
Sent: 07 August 2018 17:01
To: Joshua Moerman <context@joshuamoerman.nl>
Cc: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: [NTG-context] xrightarrow is not straight
On Tue, 7 Aug 2018 10:42:01 +0200
"Joshua Moerman" <context@joshuamoerman.nl> wrote:
> Hi ConTeXt mailing list,
>
> I am using the extensible arrows and I am not really satisfied with
> the looks of it.
>
> The most important issue I have is that the vertical spacing is too
> much. You can see this in the attached picture: the left arrow is
> using \xrightarrow{\neq a} and the right arrow is using \stackrel{\neq
> a}{\longrightarrow}. I think the right one (with stackrel) looks more
> natural. Is there a way to setup the vertical spacing?
>
> Another thing I noticed is that the line is not very consistent. This
> might be a font issue (I am using Euler). Luckily, the inconsistent
> overlap is barely visible when printed.
>
> Thanks again!
>
> Groetjes,
> Joshua
>
Hello,
You can also use MetaPost to render math stackers, rather than relying on TeX constructs and any particular font.
For example:
\useMPlibrary[mat]
\definemathstackers
[mp]
[alternative=mp]
\definemathextensible [mp] [leftarrow] ["2190]
\definemathextensible [mp] [rightarrow] ["2192]
\definemathextensible [mp] [leftrightarrow] ["2194]
\definemathextensible [mp] [longleftrightarrow] ["27F7] \definemathextensible [mp] [rightoverleftarrow] ["21C4]
\definemathextensible [mp] [underbrace] ["FE3DF]
\setupbodyfont [dejavu-condensed,12pt]
\starttext
$\rightarrow{≠a}$
\stoptext
Furthermore, the MP arrow can be tuned
\startMPinitializations
ahlength := .5EmWidth ;
ahvariant := 1 ; % dimpled straight
\stopMPinitializations
as can line widths, etc.
Alan
___________________________________________________________________________________
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://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : http://contextgarden.net
___________________________________________________________________________________
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2018-08-07 8:42 xrightarrow is not straight Joshua Moerman
2018-08-07 15:01 ` Alan Braslau
2018-08-07 17:06 ` Aditya Mahajan
2018-08-07 17:32 ` Alan Braslau
2018-08-08 10:39 ` Joshua Moerman
2018-08-07 17:04 ` Aditya Mahajan
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