Calculating tangent points with Trig. link:
https://math.stackexchange.com/questions/719758/inner-tangent-between-two-circles-formula

Hi Larry,

Congrats on your new script!
I see that you used the new beta v5 crv.getTangentsToPoint( pt ) method.
I need study and try out your script.

I did not know that the ratios worked in 3d.

- Brian