Re: Fuzzy lines

From: "Jairo A. del Rio" <jairoadelrio6@gmail.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Fuzzy lines
Date: Tue, 11 May 2021 07:56:37 -0500	[thread overview]
Message-ID: <CAKyqqaZbh9rKkQa6kCyr16CXJ1vZu___jW=jfJ-YUkpQPYjk8A@mail.gmail.com> (raw)
In-Reply-To: <CAHy-LL9aATfUgxQT=URy6YhJ3dZe-eYWFSysaWpDXHMd03_KUA@mail.gmail.com>

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For simple pens, you may define your own (section 9.7 of MetaPost manual).
For complicated strokes, something along these lines could be useful as a
starting point (I'm not taking cyclic paths in consideration, btw). I did
something similar with duck footprints some weeks ago:

%Sorry for the ugly code...

\starttext

\startMPpage
%Unit size

numeric u; u := 1mm;

%In a picture you are able to include everything, kinda

picture Pluma;

Pluma := image(

for i = 1 upto 5:

for j = 1 upto 5:

draw (i,j) randomized 1;

endfor

endfor

);

%Simple curve

path Camino;

Camino := origin for i = 1 upto 30: .. (u*i, u*sind (12i mod 360)) endfor;

%Strokes

for i = 0 step 1/2 until length Camino:

draw Pluma rotated (90 + angle direction i of Camino)

shifted point i of Camino;

endfor

\stopMPpage

\stoptext

Not sure if that's what you need...

Regards,

Jairo

El mar, 11 de may. de 2021 a la(s) 06:31, Mikael Sundqvist (mickep@gmail.com)
escribió:

> Hi!
>
> Not really what you ask for, perhaps, but this could be interesting
> for you: https://tex.stackexchange.com/q/39296/52406
>
> /Mikael
>
> On Tue, May 11, 2021 at 12:58 PM Henning Hraban Ramm <texml@fiee.net>
> wrote:
> >
> > Hi MetaFans,
> >
> > is it possible to get lines with Metapost that look like they were drawn
> with a pencil or brush?
> >
> > Some vector graphics apps (in my case: Affinity Designer) can use such
> naturally looking brushes for vector graphics (and I don’t know how they do
> it), but I’d like to automate/parametrize some designs, and that would
> finally be a reason to learn Metapost...
> >
> > Hraban
> >
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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
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