Hi there,

Sorry for resurrecting that thread, but there’s still something I don’t get with the ‘ExtremeParameters’ method.

What I want to achieve: get the curvature extremas parameters displayed by the ‘Curvature’ command (aka. max. curvature points, for both planar and 3D curves) into Rhinocommon.

Curve.ExtremeParameters requires a 3d vector:

What is that vector excatly for? The doc is not so much explaining IMO…

I understand, that this vector determines in which order the output parameters are sorted in the returned array, but I does not seem to be the case, as different vectors output completely different parameters arrays…

As a result, the ‘ExtremeParameters’ method always returns different points (round points) that the ‘Curvature’ command does (white squares):

Any explanation will be welcome!