Closest point on a cubic Bezier curve?

Question

How can I find the point B(t) along a cubic Bezier curve that is closest to an arbitrary point P in the plane?

Answer 1

There is also DOM SVG specific implementations of the closest point algorithms from Mike Bostock’s:

https://bl.ocks.org/mbostock/8027637

https://bl.ocks.org/mbostock/8027835