API Reference > geometry-core > CartesianGeometry > Point3dArrayPolygonOps > convexPolygonClipInPlace convexPolygonClipInPlace MethodStatic Clip a polygon, returning the clip result in the same object. convexPolygonClipInPlace(plane: PlaneAltitudeEvaluator, xyz: Point3d[], work: Point3d[] | undefined, tolerance: number = Geometry.smallMetricDistance): void Parameter Type Description plane PlaneAltitudeEvaluator xyz Point3d[] input/output polygon work Point3d[] | undefined scratch object tolerance number tolerance for on-plane decision. Returns - void Defined in core/geometry/src/geometry3d/PolygonOps.ts Line 975 Last Updated: 13 June, 2024