* Metafun: setting pen size in properties
@ 2017-07-23 23:40 Aditya Mahajan
2017-07-24 0:13 ` Alan Braslau
2017-07-24 8:26 ` Hans Hagen
0 siblings, 2 replies; 5+ messages in thread
From: Aditya Mahajan @ 2017-07-23 23:40 UTC (permalink / raw)
To: mailing list for ConTeXt users
Hi,
Is it possible to set pen width using properties(...)? The following does
not work (the color is set, but not the pen width):
\starttext
\startMPcode
property p[] ;
p[1] := properties(withcolor red withpen pencircle scaled 1bp);
p[2] := properties(withcolor blue withpen pencircle scaled 10bp);
draw fullcircle scaled 1cm withproperties p[1];
draw fullcircle scaled 2cm withproperties p[2];
\stopMPcode
\stoptext
Also, what is the advantage of using properties over a simple def? (except
that I cannot def a suffixed variable). For example:
\starttext
\startMPcode
def qA = withcolor red withpen pencircle scaled 1bp enddef;
def qB = withcolor blue withpen pencircle scaled 10bp enddef;
draw fullcircle scaled 1cm qA;
draw fullcircle scaled 2cm qB;
\stopMPcode
\stoptext
Thanks,
Aditya
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Metafun: setting pen size in properties
2017-07-23 23:40 Metafun: setting pen size in properties Aditya Mahajan
@ 2017-07-24 0:13 ` Alan Braslau
2017-07-24 8:26 ` Hans Hagen
1 sibling, 0 replies; 5+ messages in thread
From: Alan Braslau @ 2017-07-24 0:13 UTC (permalink / raw)
To: Aditya Mahajan; +Cc: mailing list for ConTeXt users
withproperties is an experimental, metafun extension that appears to
cover color and pre/postscripts. It could be extended to cover withpen,
etc.
Look at mp-mplib.mkiv. properties() returns an image object that can
hold many things. The graph package does similar tricks.
Alan
On Sun, 23 Jul 2017 19:40:03 -0400 (EDT)
Aditya Mahajan <adityam@umich.edu> wrote:
> Hi,
>
> Is it possible to set pen width using properties(...)? The following
> does not work (the color is set, but not the pen width):
>
> \starttext
> \startMPcode
> property p[] ;
> p[1] := properties(withcolor red withpen pencircle scaled 1bp);
> p[2] := properties(withcolor blue withpen pencircle scaled 10bp);
>
> draw fullcircle scaled 1cm withproperties p[1];
> draw fullcircle scaled 2cm withproperties p[2];
> \stopMPcode
> \stoptext
>
> Also, what is the advantage of using properties over a simple def?
> (except that I cannot def a suffixed variable). For example:
>
> \starttext
> \startMPcode
> def qA = withcolor red withpen pencircle scaled 1bp enddef;
> def qB = withcolor blue withpen pencircle scaled 10bp enddef;
>
> draw fullcircle scaled 1cm qA;
> draw fullcircle scaled 2cm qB;
>
> \stopMPcode
> \stoptext
>
> Thanks,
> 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
> ___________________________________________________________________________________
___________________________________________________________________________________
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] 5+ messages in thread
* Re: Metafun: setting pen size in properties
2017-07-23 23:40 Metafun: setting pen size in properties Aditya Mahajan
2017-07-24 0:13 ` Alan Braslau
@ 2017-07-24 8:26 ` Hans Hagen
2017-07-24 16:58 ` Alan Braslau
1 sibling, 1 reply; 5+ messages in thread
From: Hans Hagen @ 2017-07-24 8:26 UTC (permalink / raw)
To: mailing list for ConTeXt users, Aditya Mahajan
On 7/24/2017 1:40 AM, Aditya Mahajan wrote:
> Hi,
>
> Is it possible to set pen width using properties(...)? The following
> does not work (the color is set, but not the pen width):
>
> \starttext
> \startMPcode
> property p[] ;
> p[1] := properties(withcolor red withpen pencircle scaled 1bp);
> p[2] := properties(withcolor blue withpen pencircle scaled 10bp);
>
> draw fullcircle scaled 1cm withproperties p[1];
> draw fullcircle scaled 2cm withproperties p[2];
> \stopMPcode
> \stoptext
def withproperties expr p =
if colormodel p = 3 :
withcolor greypart p
elseif colormodel p = 5 :
withcolor (redpart p,greenpart p,bluepart p)
elseif colormodel p = 7 :
withcolor (cyanpart p,magentapart p,yellowpart p,blackpart p)
fi
withpen penpart p
withprescript prescriptpart p
withpostscript postscriptpart p
enddef ;
> Also, what is the advantage of using properties over a simple def?
> (except that I cannot def a suffixed variable). For example:
>
> \starttext
> \startMPcode
> def qA = withcolor red withpen pencircle scaled 1bp enddef;
> def qB = withcolor blue withpen pencircle scaled 10bp enddef;
>
> draw fullcircle scaled 1cm qA;
> draw fullcircle scaled 2cm qB;
>
> \stopMPcode
> \stoptext
abstraction ..
-----------------------------------------------------------------
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
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: Metafun: setting pen size in properties
2017-07-24 8:26 ` Hans Hagen
@ 2017-07-24 16:58 ` Alan Braslau
2017-07-25 17:34 ` Aditya Mahajan
0 siblings, 1 reply; 5+ messages in thread
From: Alan Braslau @ 2017-07-24 16:58 UTC (permalink / raw)
To: Hans Hagen; +Cc: mailing list for ConTeXt users
On Mon, 24 Jul 2017 10:26:25 +0200
Hans Hagen <pragma@wxs.nl> wrote:
> On 7/24/2017 1:40 AM, Aditya Mahajan wrote:
> > Hi,
> >
> > Is it possible to set pen width using properties(...)? The
> > following does not work (the color is set, but not the pen width):
> >
> > \starttext
> > \startMPcode
> > property p[] ;
> > p[1] := properties(withcolor red withpen pencircle scaled 1bp);
> > p[2] := properties(withcolor blue withpen pencircle scaled 10bp);
> >
> > draw fullcircle scaled 1cm withproperties p[1];
> > draw fullcircle scaled 2cm withproperties p[2];
> > \stopMPcode
> > \stoptext
>
> def withproperties expr p =
> if colormodel p = 3 :
> withcolor greypart p
> elseif colormodel p = 5 :
> withcolor (redpart p,greenpart p,bluepart p)
> elseif colormodel p = 7 :
> withcolor (cyanpart p,magentapart p,yellowpart p,blackpart p)
> fi
> withpen penpart p
if dashpart p <> nullpicture :
dashed dashpart p
fi
> withprescript prescriptpart p
> withpostscript postscriptpart p
> enddef ;
>
>
>
> > Also, what is the advantage of using properties over a simple def?
> > (except that I cannot def a suffixed variable). For example:
> >
> > \starttext
> > \startMPcode
> > def qA = withcolor red withpen pencircle scaled 1bp enddef;
> > def qB = withcolor blue withpen pencircle scaled 10bp enddef;
> >
> > draw fullcircle scaled 1cm qA;
> > draw fullcircle scaled 2cm qB;
> >
> > \stopMPcode
> > \stoptext
> abstraction ..
>
> -----------------------------------------------------------------
> 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
> ___________________________________________________________________________________
___________________________________________________________________________________
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] 5+ messages in thread* Re: Metafun: setting pen size in properties
2017-07-24 16:58 ` Alan Braslau
@ 2017-07-25 17:34 ` Aditya Mahajan
0 siblings, 0 replies; 5+ messages in thread
From: Aditya Mahajan @ 2017-07-25 17:34 UTC (permalink / raw)
To: mailing list for ConTeXt users
On Mon, 24 Jul 2017, Alan Braslau wrote:
> On Mon, 24 Jul 2017 10:26:25 +0200
> Hans Hagen <pragma@wxs.nl> wrote:
>
>> On 7/24/2017 1:40 AM, Aditya Mahajan wrote:
>>> Hi,
>>>
>>> Is it possible to set pen width using properties(...)? The
>>> following does not work (the color is set, but not the pen width):
>>>
>>> \starttext
>>> \startMPcode
>>> property p[] ;
>>> p[1] := properties(withcolor red withpen pencircle scaled 1bp);
>>> p[2] := properties(withcolor blue withpen pencircle scaled 10bp);
>>>
>>> draw fullcircle scaled 1cm withproperties p[1];
>>> draw fullcircle scaled 2cm withproperties p[2];
>>> \stopMPcode
>>> \stoptext
>>
>> def withproperties expr p =
>> if colormodel p = 3 :
>> withcolor greypart p
>> elseif colormodel p = 5 :
>> withcolor (redpart p,greenpart p,bluepart p)
>> elseif colormodel p = 7 :
>> withcolor (cyanpart p,magentapart p,yellowpart p,blackpart p)
>> fi
>> withpen penpart p
>
> if dashpart p <> nullpicture :
> dashed dashpart p
> fi
>
>> withprescript prescriptpart p
>> withpostscript postscriptpart p
>> enddef ;
Thanks!
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
___________________________________________________________________________________
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2017-07-23 23:40 Metafun: setting pen size in properties Aditya Mahajan
2017-07-24 0:13 ` Alan Braslau
2017-07-24 8:26 ` Hans Hagen
2017-07-24 16:58 ` Alan Braslau
2017-07-25 17:34 ` Aditya Mahajan
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