API Reference > geometry-core > Topology > HalfEdgeGraphSearch > pointInOrOnFaceXY pointInOrOnFaceXY MethodStatic Test if (x,y) is inside (1), on an edge (0) or outside (-1) a face. pointInOrOnFaceXY(seedNode: , x: number, y: number): number | undefined Parameter Type Description seedNode any node on the face loop x number x coordinate of test point. y number y coordinate of test point. Returns - number | undefined Defined in core/geometry/src/topology/HalfEdgeGraphSearch.ts Line 206 Last Updated: 13 June, 2024