API Reference > geometry-core > Bspline > BSplineSurface3d > createGrid createGrid MethodStatic Create a bspline surface. This create variant takes control points in a "grid" array, with the points from each grid row [rowIndex] being an independent array points[rowIndex][indexAlongRow][x,y,z] 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. createGrid(points: number[][][], orderU: number, knotArrayU: undefined | number[] | Float64Array, orderV: number, knotArrayV: undefined | number[] | Float64Array): undefined | BSplineSurface3d Parameter Type Description points 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 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 | BSplineSurface3d Defined in bspline/BSplineSurface.ts Line 633 Last Updated: 11 June, 2024