Blog Post #0060: Cairo Filled Arcs, Precision Arcs, and Curves

[Ron Tarrant via Digitalmars-d-learn]

Today's post covers a lot of ground and answers a few of those 
burning questions you may have about taming Cairo arcs and 
curves. Still, it's a quick read because... well, tons of 
diagrams and screenshots. So, come on over and take a look: 
https://gtkdcoding.com/2019/08/09/0060-cairo-iv-fill-arc-cartoon-mouth.html