There are three types of curve path: quadratic Bézier curves, cubic Bézier curves, and arcs. Bézier curves are curves defined between a start and end point but whose direction we can determine by using
**control points**, while arcs are a portion of the circumference of an ellipse.

A **quadratic Bézier curve** is a curve between two points with a single control point. To appreciate how quadratic Bézier curves are drawn, you should experiment with the animated demo at http://www.jasondavies.com/animated-bezier/. As shown here, the curve is drawn from a point **P0** to a point **P2** with a control point **P1**. The control point **P1** relative to **P0** and **P2** determines the extent to which the curve bends: from start to finish, the ...

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