API Reference > geometry-core > CartesianGeometry > Point3dArrayPolygonOps > convexPolygonSplitInsideOutsidePlane convexPolygonSplitInsideOutsidePlane MethodStatic Split a (convex) polygon into 2 parts. convexPolygonSplitInsideOutsidePlane(plane: PlaneAltitudeEvaluator, xyz: Point3d[], xyzIn: Point3d[], xyzOut: Point3d[], altitudeRange: Range1d): void Parameter Type Description plane PlaneAltitudeEvaluator xyz Point3d[] original polygon xyzIn Point3d[] array to receive inside part xyzOut Point3d[] array to receive outside part altitudeRange Range1d min and max altitudes encountered. Returns - void Defined in geometry3d/PolygonOps.ts Line 937 Last Updated: 11 June, 2024