Determines if the specified curve has an infinite range in both directions and there is a period value dT, such that a point on the curve at (u + dT) = point on curve (u), for any parameter u
(vlax-curve-isPeriodic curve-obj)
T if the curve is periodic; otherwise nil.
Determine if the ellipse used to demonstrate vlax-curve-getArea is periodic:
_$ (vlax-curve-isPeriodic ellipseObj)
T
Determine if the spline used to demonstrate vlax-curve-getDistAtParam is periodic:
_$ (vlax-curve-isPeriodic splineObj)
nil