API Reference > geometry-core > Bspline > BSpline2dNd > spanFractionToKnot spanFractionToKnot Method Map a position, specified as (uv direction, bezier span, fraction within the bezier), to an overall knot value. spanFractionToKnot(select: UVSelect, span: number, localFraction: number): number Parameter Type Description select UVSelect selector indicating U or V direction. span number index of bezier span localFraction number fractional coordinate within the bezier span Returns - number Defined in bspline/BSplineSurface.ts Line 324 Last Updated: 12 June, 2024