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From: fadden <fadden@fadden.com>
Newsgroups: comp.sys.apple2
Subject: Re: Semi-OT - What all the Logo blathering is leading up to...
Date: Mon, 26 Feb 2024 08:30:03 -0800
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On 2/25/2024 4:09 AM, Steve Nickolas wrote:
> Once I brought in graphics and Logo, though, that's where my brain 
> melted. (I'll probably need to do preliminary implementations in some 
> other language and then translate it into 65C02 postfacto, but I know 
> nothing of low-level handling of graphics like Bresenham algorithm, 
> circle algorithms, etc., and might need a hand on these things.)

Bresenham's line and circle algorithms are pretty well documented 
online.  I can offer 6502 versions but they're specific to Apple II 
hi-res.  Some of the documentation, e.g. 
https://github.com/fadden/fdraw/blob/master/docs/manual.md#circles may 
be useful.