Boolean
True if the given curve loops don’t intersect with each other; each curve loop is closed; and each loop is planar and lies on a plane parallel to the horizontal(XY) plane. Any requirement above is not satisfied or no curve loops contained, returns false.
The curve loops are valid if they don’t intersect with each other; each curve loop is closed; and each loop is planar and lies on a plane parallel to the horizontal(XY) plane.