Greetings all,

An earlier thread on Bezier Curves peaked my interest; in particular, how do you program the multi-point bezier curve? Alejandro Tejada showed us how to draw the basic bezier unit, a bezier line with two end points each with its own tangent control.

It turns out that the multi-point bezier line can be made up of a combination of these basic units. Since only nearest neighbors interact on a bezier line, all that is needed is to allow nearest neighbors of these basic units to talk to one another--gossip over the fence.

Draw the basic shape in RR using the polygon tool. The plug-in then uses that graphic as a template for the bezier curve, replacing the polygon points with bezier handles and the intervening straight line with a bezier line.

It allows for both corner points and continuous tangent points.

And, because it interests me, I have included a little bit about the underlying mathematics in a substack.

If you have need of bezier lines you will find this plug-in at:

http://home.infostations.net/jhurley/

and look for Bezier Line under Utilities.

Jim
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