API Reference > geometry-core > Bspline > BSplineSurface3dH > create create MethodStatic Create a weighted bspline surface, with control points and weights each organized as flattened array of points continuing from one U row to the next. This create variant takes control points in a "flattened" array, with points from succeeding U rows packed together in one array. Use createGrid if the points are in a deeper grid array structure. knotArrayU and knotArrayV are optional -- uniform knots are implied if they are omitted (undefined). When knots are given, two knot count conditions are recognized: If poleArray.length + order == knotArray.length, the first and last are assumed to be the extraneous knots of classic clamping. If poleArray.length + order == knotArray.length + 2, the knots are in modern form that does not have the classic unused first and last knot. create(controlPointArray: Point3d[] | Float64Array, weightArray: number[] | Float64Array, numPolesU: number, orderU: number, knotArrayU: undefined | number[] | Float64Array, numPolesV: number, orderV: number, knotArrayV: undefined | number[] | Float64Array): undefined | BSplineSurface3dH Parameter Type Description controlPointArray Point3d[] | Float64Array Array of points, ordered along the U direction. weightArray number[] | Float64Array array of weights, ordered along the U direction. numPolesU number orderU number order for the U direction polynomial (order is one more than the degree. "cubic" polynomial is order 4.) knotArrayU undefined | number[] | Float64Array numPolesV number orderV number order for the V direction polynomial (order is one more than the degree. "cubic" polynomial is order 4.) knotArrayV undefined | number[] | Float64Array Returns - undefined | BSplineSurface3dH Defined in bspline/BSplineSurface.ts Line 835 Last Updated: 11 June, 2024