API Reference > geometry-core > CartesianGeometry > PlaneAltitudeEvaluator > altitudeXYZ altitudeXYZ Method Return the altitude of the point from the plane, with the point supplied as simple x,y,z altitudeXYZ(x: number, y: number, z: number): number Parameter Type Description x number x coordinate y number y coordinate z number z coordinate Returns - number Defined in core/geometry/src/Geometry.ts Line 111 Last Updated: 15 June, 2021