From: Wolfgang Schuster <schuster.wolfgang@gmail.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: command for a MP graphic
Date: Tue, 7 May 2013 13:05:43 +0200 [thread overview]
Message-ID: <AB0849DA-3F23-4A56-8071-B110339FE358@gmail.com> (raw)
In-Reply-To: <20130507075149.GM663@homerow>
Am 07.05.2013 um 09:51 schrieb Marco Patzer <homerow@lavabit.com>:
> On 2013–05–07 Roland Thiers wrote:
>
>> Hi,
>> I did this code to get a regular polygon with metafun, it works but
>> I would like to have an user command like \define or \def
>> to be able to choose the number of sides, n. I don't know how to do
>> that ...
>
> Here's one way to do it:
>
> \startuniqueMPgraphic{polygoneregulier}{sides}
> drawoptions (withpen pencircle scaled 2pt);
> numeric u ; u:=1*cm ;
> numeric n ; n:=\MPvar{sides};
> pair a[];
> a[0]:=(0,3u);
> path polygone[] ;
> for i=1 upto n :
> a[i]:=a[0] rotatedaround(origin,i*360/n) ;
> polygone[i]:=a[i-1]--a[i];
> draw polygone[i]; endfor;
> draw fullcircle scaled 6u withcolor blue;
> \stopuniqueMPgraphic
>
> %% \polyreg{<number>}
> \define[1]\polyreg
> {\setupMPvariables[polygoneregulier][sides=#1]%%
> \uniqueMPgraphic{polygoneregulier}}
\define[1]\polyreg
{\uniqueMPgraphic{polygoneregulier}{sides=#1}}
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
___________________________________________________________________________________
next prev parent reply other threads:[~2013-05-07 11:05 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-07 7:30 Roland Thiers
2013-05-07 7:51 ` Marco Patzer
2013-05-07 10:55 ` Roland Thiers
2013-05-07 11:05 ` Wolfgang Schuster [this message]
2013-05-07 20:28 ` Roland Thiers
2013-05-08 4:56 ` Wolfgang Schuster
2013-05-08 6:22 ` Roland Thiers
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=AB0849DA-3F23-4A56-8071-B110339FE358@gmail.com \
--to=schuster.wolfgang@gmail.com \
--cc=ntg-context@ntg.nl \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).