API Reference > geometry-core > CartesianGeometry > Ellipsoid > radiansPairToEquatorialEllipsoid radiansPairToEquatorialEllipsoid Method For a given pair of points on an ellipsoid, construct another ellipsoid touches the same xyz points in space has transformation modified so that the original two points are on the equator. Note that except for true sphere inputs, the result axes can be both non-perpendicular axes and of different lengths. radiansPairToEquatorialEllipsoid(thetaARadians: number, phiARadians: number, thetaBRadians: number, phiBRadians: number, result?: Ellipsoid): Ellipsoid | undefined Parameter Type Description thetaARadians number longitude, in radians, for pointA phiARadians number latitude, in radians, for pointA thetaBRadians number longitude, in radians, for pointB phiBRadians number latitude, in radians, for pointB result Ellipsoid optional preallocated result Returns - Ellipsoid | undefined Defined in core/geometry/src/geometry3d/Ellipsoid.ts Line 474 Last Updated: 13 June, 2024