API Reference > geometry-core > Bspline > BSplineSurface3dH > getPointGridJSON getPointGridJSON Method Return control points json arrays. Each row of points is an an array. Within the array for each row, each point is an array [wx,wy,wz,w]. getPointGridJSON(): PackedPointGrid Returns - PackedPointGrid Defined in core/geometry/src/bspline/BSplineSurface.ts Line 905 Last Updated: 13 June, 2024