API Reference > geometry-core > CartesianGeometry > PolygonOps > classifyPointInPolygonXY classifyPointInPolygonXY MethodStatic Test if point (x,y) is IN, OUT or ON a polygon. classifyPointInPolygonXY(x: number, y: number, points: IndexedXYZCollection): undefined | number Parameter Type Description x number x coordinate y number y coordinate points IndexedXYZCollection array of xy coordinates. Returns - undefined | number (1) for in, (-1) for OUT, (0) for ON Defined in geometry3d/PolygonOps.ts Line 604 Last Updated: 11 June, 2024