API Reference > geometry-core > CartesianGeometry > Plane3dByOriginAndUnitNormal > weightedAltitude weightedAltitude Method Return the altitude of weighted spacePoint above or below the plane. (Below is negative) weightedAltitude(spacePoint: Point4d): number Parameter Type Description spacePoint Point4d Returns - number Defined in geometry3d/Plane3dByOriginAndUnitNormal.ts Line 218 Last Updated: 11 June, 2024