From: Mikael Sundqvist via ntg-context <ntg-context@ntg.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Cc: Mikael Sundqvist <mickep@gmail.com>
Subject: Re: MetaPost cutdraw
Date: Wed, 6 Jul 2022 23:04:00 +0200 [thread overview]
Message-ID: <CAHy-LL_ob-DeGtUdVNOCg-Xfcgoje5ykKvrRGg_vv4tXpf7Wow@mail.gmail.com> (raw)
In-Reply-To: <b770f5ca-a500-68f8-02bc-c963cb0604bb@fiee.net>
Hi,
On Wed, Jul 6, 2022 at 11:29 AM Henning Hraban Ramm via ntg-context
<ntg-context@ntg.nl> wrote:
>
> Am 06.07.22 um 09:15 schrieb Hans Hagen via ntg-context:
> > On 7/6/2022 7:10 AM, Aditya Mahajan via ntg-context wrote:
> >> On Wed, 6 Jul 2022, Henning Hraban Ramm via ntg-context wrote:
> >>
> >>> Hi, I’m trying to understand MetaPost better.
> >>>
> >>> I’d like to draw a fat line that’s cut at its end points.
> >>
> >> You mean like linecap = butt?
>
> Yes, but that doesn’t behave differently.
>
>
> > \startMPpage[offset=5mm]
> > path p;
> >
> > p := origin -- (7cm,0);
> >
> > interim linecap := squared;
> >
> > draw p withpen ((pensquare ) scaled 5mm) withcolor red ;
> > draw envelope ((pensquare ) scaled 5mm) of p withcolor
> > green ;
> > draw envelope ((pensquare rotated eps) scaled 5mm) of p withcolor
> > blue ;
> > \stopMPpage
> >
> > (there is an "ontarget" chapter about envelopes; mikael and i spent
> > quite some time figuring out a few things but in the end conclused that
> > mp des the right thing given the strategy it folows but it definitely
> > has side effects)
>
> Thank you for the insight, but does that mean I can’t get my “butt
> capped” lines and I must shorten the lines by half the pen size?
>
> Hraban
>
> ___________________________________________________________________________________
> 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
> ___________________________________________________________________________________
Hraban,
with the new upload you can do
\startMPpage[offset=1dk]
pickup pencircle scaled 4 ;
path p ; p := origin -- (20,0) ;
draw p withcolor darkyellow ;
draw p yshifted 5 withlinecap butt withcolor darkred ;
draw p yshifted -5 withlinecap squared withcolor darkgreen ;
for i within currentpicture :
drawpoints pathpart i withpen pencircle scaled 1 ;
endfor ;
\stopMPpage
That is, you can set linecap for each draw. I hope it helps.
/Mikael
___________________________________________________________________________________
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
___________________________________________________________________________________
prev parent reply other threads:[~2022-07-06 21:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-05 22:10 Henning Hraban Ramm via ntg-context
2022-07-06 5:10 ` Aditya Mahajan via ntg-context
2022-07-06 7:15 ` Hans Hagen via ntg-context
2022-07-06 9:27 ` Henning Hraban Ramm via ntg-context
2022-07-06 21:04 ` Mikael Sundqvist via ntg-context [this message]
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