API Reference > geometry-core > CartesianGeometry > Point3dArrayPolygonOps > polygonPlaneCrossings polygonPlaneCrossings MethodStatic Return an array containing All points that are exactly on the plane. Crossing points between adjacent points that are (strictly) on opposite sides. polygonPlaneCrossings(plane: PlaneAltitudeEvaluator, xyz: Point3d[], crossings: Point3d[]): void Parameter Type Description plane PlaneAltitudeEvaluator xyz Point3d[] crossings Point3d[] Returns - void Defined in geometry3d/PolygonOps.ts Line 949 Last Updated: 11 June, 2024