This demonstration shows how bézier curves can be drawn on a canvas element. Drag the line ends or the control points to change the curve.
For more information, please refer to:
How to Draw Bezier Curves on an HTML5 Canvas
How to Draw Quadratic Curves on an HTML5 Canvas
The code was developed by Craig Buckler of OptimalWorks.net for SitePoint.com.
This code can be used without any restrictions but please don't expect 24/7 support! A link back to SitePoint.com is appreciated.