From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org
X-Spam-Level: 
X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham
	autolearn_force=no version=3.4.4
Received: (qmail 3622 invoked from network); 30 Jan 2023 01:28:41 -0000
Received: from 9front.inri.net (168.235.81.73)
  by inbox.vuxu.org with ESMTPUTF8; 30 Jan 2023 01:28:41 -0000
Received: from maat.thinktankworkspaces.com ([45.79.94.76]) by 9front; Sun Jan 29 20:25:40 -0500 2023
Message-ID: <760DDEAEAA34C2CCD2EB2195D73D0AED@thinktankworkspaces.com>
To: 9front@9front.org
Date: Sun, 29 Jan 2023 17:25:37 -0800
From: william@thinktankworkspaces.com
In-Reply-To: <A9C4BF8081E5989A24A3C8CE20915A91@antares-labs.eu>
MIME-Version: 1.0
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 8bit
List-ID: <9front.9front.org>
List-Help: <http://lists.9front.org>
X-Glyph: ➈
X-Bullshit: basic ACPI over ACPI API event 
Subject: Re: [9front] [patchset] libgeometry revamp
Reply-To: 9front@9front.org
Precedence: bulk

Brilliant!

Quoth rgl@antares-labs.eu:
> hello everyone,
> 
> this is a proposal to renovate the current libgeometry with a more
> modern implementation that i've been using in my personal projects for
> the last four years.  it provides almost all of the functionality
> available in the old one, with a cleaner and more consistent interface
> (similar naming conventions as those used in libdraw's geometric
> routines), plus the addition of 2D transformations (not just 3D), a
> frame of reference data type for 2- and 3-spaces, and utilities such
> as point-in-polygon testing and barycentric coordinate computations.
> 
> i documented everything in a single man page—geometry(2)—, so i got
> rid of those related to the old library, with the exception of
> qball(2), on which i'm still working and whose implementation i
> believe to be broken; i'm using a version by BurnZeZ with some minor
> changes that actually works, but it doesn't perform rotations the way
> it should (demo: https://www.youtube.com/watch?v=g3pha1EXhIk) and i
> will need more time to come up with a proper Arcball controller.
> 
> some examples of projects where i use the library:
> 
>  - http://git.antares-labs.eu/boids/
>  - http://git.antares-labs.eu/etoys/
>  - http://git.antares-labs.eu/gamephysics/
>  - http://git.antares-labs.eu/3dee/
> 
> 
> if it looks reasonable to you, i can push it upstream.
> 
> 
> 
> cheers!
> 
> -rodri
>