API Reference > geometry-core > Bspline > BSplineSurface3d > knotToPoint knotToPoint Method Evaluate at a position given by u and v coordinates in knot space. knotToPoint(u: number, v: number): Point3d Parameter Type Description u number u value, in knot range. v number v value in knot range. Returns - Point3d Return the xyz coordinates on the surface. Defined in core/geometry/src/bspline/BSplineSurface.ts Line 685 Last Updated: 13 June, 2024