Re: Fierce and scary geometry algorithm for ‘ParallelPath’

Newsgroups	comp.lang.postscript
Date	2019-04-20 11:50 -0700
References	<e7dba0a9-68e6-4dfe-90ba-6e9b00e7d3d3@googlegroups.com> <3d3921d1-b616-48a5-b154-df5c9918a4b2@googlegroups.com> <f62b672d-c0f6-4d4a-893f-17bd9ec7a890@googlegroups.com> <c935edab-6c16-4c81-a424-27161a06008c@googlegroups.com> <dc8ba0d1-e537-476c-bd92-40bac856c52c@googlegroups.com>
Message-ID	<ead04ba3-6e99-474c-8c4e-53647863174b@googlegroups.com> (permalink)
Subject	Re: Fierce and scary geometry algorithm for ‘ParallelPath’
From	luser droog <luser.droog@gmail.com>

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On Saturday, April 20, 2019 at 1:33:11 PM UTC-5, luser droog wrote:
> On Saturday, April 20, 2019 at 1:01:11 PM UTC-5, jdawisema...@gmail.com wrote:
> > > I just had a crazy thought: what if we could abuse 'strokepath' to do the work?
> > > In a way, this is similar to the job 'strokepath' has to do. It takes a single
> > > curve and generates two offset curves on either side (plus caps and joins).
> > 
> > PLRM3, p700:
> > > The path produced by strokepath … is not suitable for stroke, as it may contain interior segments or disconnected subpaths produced by strokepath’s conversion from stroke to outline.
> > 
> > Not strokeable, alas.
> 
> Perhaps so, at least not directly. But it may be an easier job to clean up
> the path it creates rather than doing the whole job some other way.

It's definitely not the desired result out of the box, but the information
is in there.

%!                                                                                                                                                                                                                                

144 setlinewidth
300 400 200 0 360 arc strokepath 1 setlinewidth stroke
showpage quit

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Fierce and scary geometry algorithm for ‘ParallelPath’ jdawiseman.bloomberg@gmail.com - 2019-04-17 13:37 -0700
  Re: Fierce and scary geometry algorithm for ‘ParallelPath’ edspikechapman@gmail.com - 2019-04-19 08:55 -0700
    Re: Fierce and scary geometry algorithm for ‘ParallelPath’ jdawiseman.bloomberg@gmail.com - 2019-04-20 02:44 -0700
      Re: Fierce and scary geometry algorithm for ‘ParallelPath’ Carlos <carlos@cvkm.cz> - 2019-04-29 02:41 +0200
        Re: Fierce and scary geometry algorithm for ‘ParallelPath’ jdaw1 <jdawiseman@gmail.com> - 2019-06-19 15:04 -0700
          Re: Fierce and scary geometry algorithm for ‘ParallelPath’ luser droog <luser.droog@gmail.com> - 2019-06-22 13:33 -0700
            Re: Fierce and scary geometry algorithm for ‘ParallelPath’ luser droog <luser.droog@gmail.com> - 2019-06-22 14:54 -0700
              Re: Fierce and scary geometry algorithm for ‘ParallelPath’ luser droog <luser.droog@gmail.com> - 2019-06-22 15:37 -0700
                Re: Fierce and scary geometry algorithm for ‘ParallelPath’ luser droog <luser.droog@gmail.com> - 2019-06-23 15:59 -0700
                Re: Fierce and scary geometry algorithm for ‘ParallelPath’ luser droog <luser.droog@gmail.com> - 2019-06-27 06:59 -0700
                Re: Fierce and scary geometry algorithm for ‘ParallelPath’ luser droog <luser.droog@gmail.com> - 2019-06-27 07:48 -0700
                Re: Fierce and scary geometry algorithm for ‘ParallelPath’ luser droog <luser.droog@gmail.com> - 2019-06-27 08:30 -0700
                Re: Fierce and scary geometry algorithm for ‘ParallelPath’ luser droog <luser.droog@gmail.com> - 2019-06-28 12:10 -0700
                Re: Fierce and scary geometry algorithm for ‘ParallelPath’ luser droog <luser.droog@gmail.com> - 2019-07-19 14:00 -0700
                Re: Fierce and scary geometry algorithm for ‘ParallelPath’ luser droog <luser.droog@gmail.com> - 2019-07-20 09:33 -0700
                Re: Fierce and scary geometry algorithm for ‘ParallelPath’ luser droog <luser.droog@gmail.com> - 2019-07-20 13:20 -0700
                Re: Fierce and scary geometry algorithm for ‘ParallelPath’ jdaw1 <jdawiseman@gmail.com> - 2021-03-14 10:25 -0700
  Re: Fierce and scary geometry algorithm for ‘ParallelPath’ jdawiseman.bloomberg@gmail.com - 2019-04-20 06:54 -0700
    Re: Fierce and scary geometry algorithm for ‘ParallelPath’ luser droog <luser.droog@gmail.com> - 2019-04-20 10:44 -0700
      Re: Fierce and scary geometry algorithm for ‘ParallelPath’ jdawiseman.bloomberg@gmail.com - 2019-04-20 11:01 -0700
        Re: Fierce and scary geometry algorithm for ‘ParallelPath’ luser droog <luser.droog@gmail.com> - 2019-04-20 11:33 -0700
          Re: Fierce and scary geometry algorithm for ‘ParallelPath’ luser droog <luser.droog@gmail.com> - 2019-04-20 11:50 -0700
            Re: Fierce and scary geometry algorithm for ‘ParallelPath’ luser droog <luser.droog@gmail.com> - 2019-04-20 13:01 -0700
              Re: Fierce and scary geometry algorithm for ‘ParallelPath’ jdawiseman.bloomberg@gmail.com - 2019-04-21 03:29 -0700
                Re: Fierce and scary geometry algorithm for ‘ParallelPath’ luser droog <luser.droog@gmail.com> - 2019-04-28 13:33 -0700

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