Package esvect and Context

Package esvect and Context

[Fabrice Couvreur]

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Hello everyone,
When I used LaTeX, I was writing the vectors with esvect package.
Is there an equivalent with Context ?
Fabrice

https://www.ctan.org/tex-archive/macros/latex/contrib/esvect/

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___________________________________________________________________________________
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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___________________________________________________________________________________

Re: Package esvect and Context

[josephcanedo]

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Hi Fabrice,


Have you tried \vec command ?


\startformula


\vec{AB} = \vec{AC} + \vec{CB}


\stopformula


Best regards


Joseph





From: Fabrice Couvreur
Sent: ‎Saturday‎, ‎June‎ ‎4‎, ‎2016 ‎9‎:‎12‎ ‎AM
To: ntg-context@ntg.nl





Hello everyone,
When I used LaTeX, I was writing the vectors with esvect package.
Is there an equivalent with Context ?
Fabrice

https://www.ctan.org/tex-archive/macros/latex/contrib/esvect/

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___________________________________________________________________________________
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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wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: Package esvect and Context

[Fabrice Couvreur]

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Hi Joseph,
This is already the command I used, but I think the point of the too small
arrow.
Regards,
Fabrice

2016-06-06 21:23 GMT+02:00 <josephcanedo@gmail.com>:

> Hi Fabrice,
>
> Have you tried \vec command ?
>
> \startformula
>
> \vec{AB} = \vec{AC} + \vec{CB}
>
> \stopformula
>
> Best regards
>
> Joseph
>
> *From:* Fabrice Couvreur <fabrice1.couvreur@gmail.com>
> *Sent:* ‎Saturday‎, ‎June‎ ‎4‎, ‎2016 ‎9‎:‎12‎ ‎AM
> *To:* ntg-context@ntg.nl
>
> Hello everyone,
> When I used LaTeX, I was writing the vectors with esvect package.
> Is there an equivalent with Context ?
> Fabrice
>
> https://www.ctan.org/tex-archive/macros/latex/contrib/esvect/
>
>
> ___________________________________________________________________________________
> 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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___________________________________________________________________________________
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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___________________________________________________________________________________

Re: Package esvect and Context

[Hans Hagen]

On 6/6/2016 9:39 PM, Fabrice Couvreur wrote:
> Hi Joseph,
> This is already the command I used, but I think the point of the too
> small arrow.

If you really want to go over the top:

\useMPlibrary[mat]

% will be in meta-imp-mat.mkiv

\startMPextensions
     vardef math_stacker_arrow_shape =
         image (
             drawarrow
                 (OverlayWidth,OverlayOffset) -- (0,OverlayOffset)
             withcolor
                 OverlayLineColor ;
             setbounds currentpicture to boundingbox currentpicture 
bottomenlarged (OverlayOffset/2) topenlarged (OverlayOffset/2) ;
         )
     enddef ;
     vardef math_stacker_leftarrow_shape =
         math_stacker_arrow_shape
     enddef ;
     vardef math_stacker_rightarrow_shape =
         math_stacker_arrow_shape rotated 180
     enddef ;
\stopMPextensions

\startuniqueMPgraphic{math:stacker:\number"2190}
     math_stacker_draw(math_stacker_leftarrow_shape) ;
\stopuniqueMPgraphic

\startuniqueMPgraphic{math:stacker:\number"2192}
     math_stacker_draw(math_stacker_rightarrow_shape) ;
\stopuniqueMPgraphic

% so far

\setupmathstackers
   [both] % vfenced]
   [color=darkred,
    alternative=mp]

\setupmathstackers
   [top]
   [color=darkred,
    alternative=mp]

\setupmathstackers
   [bottom]
   [color=darkred,
    alternative=mp]

\starttext

$\overbracket   {a+b+c+d} \quad \underbracket    {a+b+c+d} \quad 
\doublebracket{a+b+c+d}$ \blank
$\overparent    {a+b+c+d} \quad \underparent     {a+b+c+d} \quad 
\doubleparent {a+b+c+d}$ \blank
$\overbrace     {a+b+c+d} \quad \underbrace      {a+b+c+d} \quad 
\doublebrace  {a+b+c+d}$ \blank
$\overbar       {a+b+c+d} \quad \underbar        {a+b+c+d} \quad 
\doublebar    {a+b+c+d}$ \blank

$\overleftarrow  {a+b+c+d} \quad \overrightarrow  {a+b+c+d} $ \blank
$\underleftarrow {a+b+c+d} \quad \underrightarrow {a+b+c+d} $ \blank

\stoptext


-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
       tel: 038 477 53 69 | 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: Package esvect and Context

[Fabrice Couvreur]

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Hi Hans,
The console returns me :

resolvers       | trees | analyzing 'home:texmf'
mtx-context     | run 1: luatex
--fmt="/home/fab/context/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en"
--jobname="ntg45"
--lua="/home/fab/context/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en.lui"
--no-parse-first-line --c:currentrun=1 --c:fulljobname="./ntg45.tex"
--c:input="./ntg45.tex" --c:kindofrun=1 --c:maxnofruns=9 "cont-yes.mkiv"
This is LuaTeX, Version 0.95.0 (TeX Live 2016)
 system commands enabled.

resolvers       > trees > analyzing 'home:texmf'
open source     > 1 > 1 >
/home/fab/context/tex/texmf-context/tex/context/base/mkiv/cont-yes.mkiv

ConTeXt  ver: 2016.06.05 16:26 MKIV beta  fmt: 2016.6.6  int:
english/english

system          > 'cont-new.mkiv' loaded
open source     > 2 > 2 >
/home/fab/context/tex/texmf-context/tex/context/base/mkiv/cont-new.mkiv
close source    > 2 > 2 >
/home/fab/context/tex/texmf-context/tex/context/base/mkiv/cont-new.mkiv
system          > files > jobname 'ntg45', input './ntg45', result 'ntg45'
fonts           > latin modern fonts are not preloaded
languages       > language 'en' is active
open source     > 2 > 3 > /home/fab/ntg45.tex
metapost        > library 'mat' is unknown or invalid
fonts           > preloading latin modern fonts (second stage)
fonts           > 'fallback modern-designsize rm 12pt' is loaded
metapost        > initializing instance 'metafun' using format 'metafun'
metapost        > loading 'metafun' as
'/home/fab/context/tex/texmf-context/metapost/context/base/mpiv/metafun.mpiv'
using method 'default'
metapost        > initializing number mode 'scaled'
metapost        > error:





>> math_stacker_draw
! Isolated expression.
<to be read again>
                   (
<*>  math_stacker_draw(
                       math_stacker_leftarrow_shape) ; ;
! Extra tokens will be flushed.
<to be read again>
                   (
<*>  math_stacker_draw(
                       math_stacker_leftarrow_shape) ; ;

[1]

no-error
metapost        > error:



>> math_stacker_draw
! Isolated expression.
<to be read again>
                   (
<*>  math_stacker_draw(
                       math_stacker_leftarrow_shape) ; ;
! Extra tokens will be flushed.
<to be read again>
                   (
<*>  math_stacker_draw(
                       math_stacker_leftarrow_shape) ; ;

[1]

no-error
metapost        > error:




>> math_stacker_draw
! Isolated expression.
<to be read again>
                   (
<*>  math_stacker_draw(
                       math_stacker_rightarrow_shape) ; ;
! Extra tokens will be flushed.
<to be read again>
                   (
<*>  math_stacker_draw(
                       math_stacker_rightarrow_shape) ; ;

[1]

no-error
metapost        > error:



>> math_stacker_draw
! Isolated expression.
<to be read again>
                   (
<*>  math_stacker_draw(
                       math_stacker_rightarrow_shape) ; ;
! Extra tokens will be flushed.
<to be read again>
                   (
<*>  math_stacker_draw(
                       math_stacker_rightarrow_shape) ; ;

[1]

no-error
backend         > xmp > using file
'/home/fab/context/tex/texmf-context/tex/context/base/mkiv/lpdf-pdx.xml'
pages           > flushing realpage 1, userpage 1
close source    > 2 > 3 > /home/fab/ntg45.tex
close source    > 1 > 3 >
/home/fab/context/tex/texmf-context/tex/context/base/mkiv/cont-yes.mkiv

mkiv lua stats  > used config file: selfautoparent:/texmf/web2c/texmfcnf.lua
mkiv lua stats  > used cache path:
/home/fab/context/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e
mkiv lua stats  > resource resolver: loadtime 0.032 seconds, 1 scans with
scantime 0.021 seconds, 0 shared scans, 22 found files, scanned paths:
/home/fab/texmf
mkiv lua stats  > stored bytecode data: 390 modules (0.281 sec), 82 tables
(0.011 sec), 472 chunks (0.292 sec)
mkiv lua stats  > traced context: maxstack: 1182, freed: 2, unreachable:
1180
mkiv lua stats  > cleaned up reserved nodes: 48 nodes, 9 lists of 446
mkiv lua stats  > node memory usage: 139 glue, 2 penalty, 180 attribute, 38
glue_spec, 34 attribute_list, 2 temp, 2 user_defined
mkiv lua stats  > node list callback tasks: 6 unique task lists, 6
instances (re)created, 88 calls
mkiv lua stats  > used backend: pdf (backend for directly generating pdf
output)
mkiv lua stats  > jobdata time: 0.001 seconds saving, 0.000 seconds loading
mkiv lua stats  > callbacks: 246 direct, 303 indirect, 549 total
mkiv lua stats  > randomizer: resumed with value 0.28739196541132
mkiv lua stats  > positions: 8 collected, 8 regulars, 0 regions, 0
unresolved regions
mkiv lua stats  > loaded patterns: en::2, load time: 0.000
mkiv lua stats  > result saved in file: ntg45.pdf, compresslevel 3,
objectcompresslevel 3
mkiv lua stats  > loaded fonts: 2 files: latinmodern-math.otf,
lmroman12-regular.otf
mkiv lua stats  > font engine: otf 3.022, afm 1.512, tfm 1.000, 4
instances, load time 0.149 seconds
mkiv lua stats  > used platform: linux-64, type: unix, binary subtree:
texmf-linux-64
mkiv lua stats  > luatex banner: this is luatex, version 0.95.0 (tex live
2016)
mkiv lua stats  > control sequences: 43841 of 65536 + 100000
mkiv lua stats  > lua properties: engine: lua, used memory: 59 MB (ctx: 58
MB), hash type: lua, hash chars: min(64,40), symbol mask: utf (τεχ)
mkiv lua stats  > runtime: 0.551 seconds, 1 processed pages, 1 shipped
pages, 1.815 pages/second

system          | total runtime: 0.784 seconds


Thanks,
Fabrice

2016-06-06 22:50 GMT+02:00 Hans Hagen <pragma@wxs.nl>:

> On 6/6/2016 9:39 PM, Fabrice Couvreur wrote:
>
>> Hi Joseph,
>> This is already the command I used, but I think the point of the too
>> small arrow.
>>
>
> If you really want to go over the top:
>
> \useMPlibrary[mat]
>
> % will be in meta-imp-mat.mkiv
>
> \startMPextensions
>     vardef math_stacker_arrow_shape =
>         image (
>             drawarrow
>                 (OverlayWidth,OverlayOffset) -- (0,OverlayOffset)
>             withcolor
>                 OverlayLineColor ;
>             setbounds currentpicture to boundingbox currentpicture
> bottomenlarged (OverlayOffset/2) topenlarged (OverlayOffset/2) ;
>         )
>     enddef ;
>     vardef math_stacker_leftarrow_shape =
>         math_stacker_arrow_shape
>     enddef ;
>     vardef math_stacker_rightarrow_shape =
>         math_stacker_arrow_shape rotated 180
>     enddef ;
> \stopMPextensions
>
> \startuniqueMPgraphic{math:stacker:\number"2190}
>     math_stacker_draw(math_stacker_leftarrow_shape) ;
> \stopuniqueMPgraphic
>
> \startuniqueMPgraphic{math:stacker:\number"2192}
>     math_stacker_draw(math_stacker_rightarrow_shape) ;
> \stopuniqueMPgraphic
>
> % so far
>
> \setupmathstackers
>   [both] % vfenced]
>   [color=darkred,
>    alternative=mp]
>
> \setupmathstackers
>   [top]
>   [color=darkred,
>    alternative=mp]
>
> \setupmathstackers
>   [bottom]
>   [color=darkred,
>    alternative=mp]
>
> \starttext
>
> $\overbracket   {a+b+c+d} \quad \underbracket    {a+b+c+d} \quad
> \doublebracket{a+b+c+d}$ \blank
> $\overparent    {a+b+c+d} \quad \underparent     {a+b+c+d} \quad
> \doubleparent {a+b+c+d}$ \blank
> $\overbrace     {a+b+c+d} \quad \underbrace      {a+b+c+d} \quad
> \doublebrace  {a+b+c+d}$ \blank
> $\overbar       {a+b+c+d} \quad \underbar        {a+b+c+d} \quad
> \doublebar    {a+b+c+d}$ \blank
>
> $\overleftarrow  {a+b+c+d} \quad \overrightarrow  {a+b+c+d} $ \blank
> $\underleftarrow {a+b+c+d} \quad \underrightarrow {a+b+c+d} $ \blank
>
> \stoptext
>
>
> -----------------------------------------------------------------
>                                           Hans Hagen | PRAGMA ADE
>               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>       tel: 038 477 53 69 | 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
>
> ___________________________________________________________________________________
>

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___________________________________________________________________________________
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: Package esvect and Context

[Wolfgang Schuster]

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> Hans Hagen <mailto:pragma@wxs.nl>
> 6. Juni 2016 um 22:50
>
>
> If you really want to go over the top:
>
> \useMPlibrary[mat]
The file "meta-imp-mis.mkiv" is missing which results in a error about 
"math_stacker_draw" being undefined.

Wolfgang

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___________________________________________________________________________________
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: Package esvect and Context

[Fabrice Couvreur]

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Hi Wolfgang,
what directory I put this file knowing that I installed the standalone
version in /home/fab/context
Fabrice

2016-06-07 23:04 GMT+02:00 Wolfgang Schuster <schuster.wolfgang@gmail.com>:

> Hans Hagen <pragma@wxs.nl>
> 6. Juni 2016 um 22:50
>
>
> If you really want to go over the top:
>
> \useMPlibrary[mat]
>
> The file "meta-imp-mis.mkiv" is missing which results in a error about
> "math_stacker_draw" being undefined.
>
> 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
>
> ___________________________________________________________________________________
>

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___________________________________________________________________________________
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: Package esvect and Context

[Wolfgang Schuster]

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> Fabrice Couvreur <mailto:fabrice1.couvreur@gmail.com>
> 15. Juni 2016 um 14:48
> Hi Wolfgang,
> what directory I put this file knowing that I installed the standalone 
> version in /home/fab/context
> Fabrice
>
The commend was meant for Hans, all *you* have to do is update your TeX 
installation, afterwards you can try the following example:

\useMPlibrary[mat]

\setupmathstackers
   [both]
   [color=darkred,
    alternative=mp]

\setupmathstackers
   [top]
   [color=darkred,
    alternative=mp]

\setupmathstackers
   [bottom]
   [color=darkred,
    alternative=mp]

\starttext

$\overbracket   {a+b+c+d} \quad \underbracket    {a+b+c+d} \quad 
\doublebracket{a+b+c+d}$ \blank
$\overparent    {a+b+c+d} \quad \underparent     {a+b+c+d} \quad 
\doubleparent {a+b+c+d}$ \blank
$\overbrace     {a+b+c+d} \quad \underbrace      {a+b+c+d} \quad 
\doublebrace  {a+b+c+d}$ \blank
$\overbar       {a+b+c+d} \quad \underbar        {a+b+c+d} \quad 
\doublebar    {a+b+c+d}$ \blank

$\overleftarrow  {a+b+c+d} \quad \overrightarrow  {a+b+c+d} $ \blank
$\underleftarrow {a+b+c+d} \quad \underrightarrow {a+b+c+d} $ \blank

\stoptext

Wolfgang

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___________________________________________________________________________________
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: Package esvect and Context

[Fabrice Couvreur]

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It's ok.
Thanks,
Fabrice

2016-06-15 14:58 GMT+02:00 Wolfgang Schuster <schuster.wolfgang@gmail.com>:

> Fabrice Couvreur <fabrice1.couvreur@gmail.com>
> 15. Juni 2016 um 14:48
> Hi Wolfgang,
> what directory I put this file knowing that I installed the standalone
> version in /home/fab/context
> Fabrice
>
> The commend was meant for Hans, all *you* have to do is update your TeX
> installation, afterwards you can try the following example:
>
> \useMPlibrary[mat]
>
> \setupmathstackers
>   [both]
>   [color=darkred,
>    alternative=mp]
>
> \setupmathstackers
>   [top]
>   [color=darkred,
>    alternative=mp]
>
> \setupmathstackers
>   [bottom]
>   [color=darkred,
>    alternative=mp]
>
> \starttext
>
> $\overbracket   {a+b+c+d} \quad \underbracket    {a+b+c+d} \quad
> \doublebracket{a+b+c+d}$ \blank
> $\overparent    {a+b+c+d} \quad \underparent     {a+b+c+d} \quad
> \doubleparent {a+b+c+d}$ \blank
> $\overbrace     {a+b+c+d} \quad \underbrace      {a+b+c+d} \quad
> \doublebrace  {a+b+c+d}$ \blank
> $\overbar       {a+b+c+d} \quad \underbar        {a+b+c+d} \quad
> \doublebar    {a+b+c+d}$ \blank
>
> $\overleftarrow  {a+b+c+d} \quad \overrightarrow  {a+b+c+d} $ \blank
> $\underleftarrow {a+b+c+d} \quad \underrightarrow {a+b+c+d} $ \blank
>
> \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
>
> ___________________________________________________________________________________
>

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___________________________________________________________________________________
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: Package esvect and Context

[Fabrice Couvreur]

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Thanks Hans
Fabrice

2017-05-27 0:09 GMT+02:00 Hans Hagen <pragma@wxs.nl>:

> On 5/26/2017 12:53 PM, Fabrice Couvreur wrote:
>
>> Hello,
>> Hans suggested a macro to draw the vectors . It works well but I find
>> that in some situations, the arrow is too big.
>> thank you,
>>
>
>              interim ahlength := 2;
>
>
> Fabrice
>>
>>
>> https://mailman.ntg.nl/pipermail/ntg-context/2016/085828.html
>>
>> \useMPlibrary[mat]
>>
>> \startMPextensions
>>       vardef math_stacker_arrow_shape =
>>           image (
>>               drawarrow
>>                   (OverlayWidth,OverlayOffset) -- (0,OverlayOffset)
>>               withcolor
>>                   OverlayLineColor ;
>>               setbounds currentpicture to boundingbox currentpicture
>> bottomenlarged (OverlayOffset/2) topenlarged (OverlayOffset/2) ;
>>           )
>>       enddef ;
>>       vardef math_stacker_leftarrow_shape =
>>           math_stacker_arrow_shape
>>       enddef ;
>>       vardef math_stacker_rightarrow_shape =
>>           math_stacker_arrow_shape rotated 180
>>       enddef ;
>> \stopMPextensions
>>
>> \startuniqueMPgraphic{math:stacker:\number"2190}
>>       math_stacker_draw(math_stacker_leftarrow_shape) ;
>> \stopuniqueMPgraphic
>>
>> \startuniqueMPgraphic{math:stacker:\number"2192}
>>       math_stacker_draw(math_stacker_rightarrow_shape) ;
>> \stopuniqueMPgraphic
>>
>> % so far
>>
>> \setupmathstackers
>>     [both] % vfenced]
>>     [color=darkred,
>>      alternative=mp]
>>
>> \setupmathstackers
>>     [top]
>>     [color=darkred,
>>      alternative=mp]
>>
>> \setupmathstackers
>>     [bottom]
>>     [color=darkred,
>>      alternative=mp]
>>
>> \starttext
>>
>> $\overrightarrow  {i}$
>>
>> \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
> ____________________________________________________________
> _______________________

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___________________________________________________________________________________
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
___________________________________________________________________________________

Re: Package esvect and Context

[Hans Hagen]

On 5/26/2017 12:53 PM, Fabrice Couvreur wrote:
> Hello,
> Hans suggested a macro to draw the vectors . It works well but I find 
> that in some situations, the arrow is too big.
> thank you,

              interim ahlength := 2;


> Fabrice
> 
> 
> https://mailman.ntg.nl/pipermail/ntg-context/2016/085828.html
> 
> \useMPlibrary[mat]
> 
> \startMPextensions
>       vardef math_stacker_arrow_shape =
>           image (
>               drawarrow
>                   (OverlayWidth,OverlayOffset) -- (0,OverlayOffset)
>               withcolor
>                   OverlayLineColor ;
>               setbounds currentpicture to boundingbox currentpicture
> bottomenlarged (OverlayOffset/2) topenlarged (OverlayOffset/2) ;
>           )
>       enddef ;
>       vardef math_stacker_leftarrow_shape =
>           math_stacker_arrow_shape
>       enddef ;
>       vardef math_stacker_rightarrow_shape =
>           math_stacker_arrow_shape rotated 180
>       enddef ;
> \stopMPextensions
> 
> \startuniqueMPgraphic{math:stacker:\number"2190}
>       math_stacker_draw(math_stacker_leftarrow_shape) ;
> \stopuniqueMPgraphic
> 
> \startuniqueMPgraphic{math:stacker:\number"2192}
>       math_stacker_draw(math_stacker_rightarrow_shape) ;
> \stopuniqueMPgraphic
> 
> % so far
> 
> \setupmathstackers
>     [both] % vfenced]
>     [color=darkred,
>      alternative=mp]
> 
> \setupmathstackers
>     [top]
>     [color=darkred,
>      alternative=mp]
> 
> \setupmathstackers
>     [bottom]
>     [color=darkred,
>      alternative=mp]
> 
> \starttext
> 
> $\overrightarrow  {i}$
> 
> \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/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
> ___________________________________________________________________________________
> 


-- 

-----------------------------------------------------------------
                                           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/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
___________________________________________________________________________________

Package esvect and Context

[Fabrice Couvreur]

[-- Attachment #1.1: Type: text/plain, Size: 1352 bytes --]

Hello,
Hans suggested a macro to draw the vectors . It works well but I find that
in some situations, the arrow is too big.
thank you,
Fabrice


https://mailman.ntg.nl/pipermail/ntg-context/2016/085828.html

\useMPlibrary[mat]

\startMPextensions
     vardef math_stacker_arrow_shape =
         image (
             drawarrow
                 (OverlayWidth,OverlayOffset) -- (0,OverlayOffset)
             withcolor
                 OverlayLineColor ;
             setbounds currentpicture to boundingbox currentpicture
bottomenlarged (OverlayOffset/2) topenlarged (OverlayOffset/2) ;
         )
     enddef ;
     vardef math_stacker_leftarrow_shape =
         math_stacker_arrow_shape
     enddef ;
     vardef math_stacker_rightarrow_shape =
         math_stacker_arrow_shape rotated 180
     enddef ;
\stopMPextensions

\startuniqueMPgraphic{math:stacker:\number"2190}
     math_stacker_draw(math_stacker_leftarrow_shape) ;
\stopuniqueMPgraphic

\startuniqueMPgraphic{math:stacker:\number"2192}
     math_stacker_draw(math_stacker_rightarrow_shape) ;
\stopuniqueMPgraphic

% so far

\setupmathstackers
   [both] % vfenced]
   [color=darkred,
    alternative=mp]

\setupmathstackers
   [top]
   [color=darkred,
    alternative=mp]

\setupmathstackers
   [bottom]
   [color=darkred,
    alternative=mp]

\starttext

$\overrightarrow  {i}$

\stoptext

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___________________________________________________________________________________
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
___________________________________________________________________________________