API Reference > geometry-core > Serialization > BSplineCurve3dH > isClosable isClosable AccessorReadOnly return true if the spline is (a) unclamped with (degree-1) matching knot intervals, (b) (degree-1) wrapped points, (c) marked wrappable from construction time. isClosable: boolean Returns - boolean Defined in bspline/BSplineCurve3dH.ts Line 366 Last Updated: 11 June, 2024