Martin Doms : Splines and curves part I – Bézier Curves: "Bézier curves
The first curve we will investigate is the infamous Bezier curve. It should be noted that the Bezier curve is not, in fact, a spline, but it’s still a useful starting point. We will start with an example, and delve into some details of how this curve works and why. Note that the interactive examples in this article use the HTML5 canvas element so may not work correctly on older browsers and some mobile devices. Hover your mouse over the curve to see how it is constructed."
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