API Reference > geometry-core > CartesianGeometry > ConvexClipPlaneSet > addPlaneToConvexSet addPlaneToConvexSet Method Add a plane to the convex set. addPlaneToConvexSet(plane: undefined | ClipPlane): void Parameter Type Description plane undefined | ClipPlane plane to add Returns - void Defined in clipping/ConvexClipPlaneSet.ts Line 556 Last Updated: 11 June, 2024