API Reference > geometry-core > Bspline > BSpline2dNd > isClosable isClosable Method Test if degree leading and trailing (one of U or V) blocks match, as if the data is an unwrapped closed spline in the selected direction. isClosable(select: UVSelect): boolean Parameter Type Description select UVSelect select U or V direction Returns - boolean true if coordinates matched. Defined in bspline/BSplineSurface.ts Line 468 Last Updated: 12 June, 2024