API Reference > geometry-core > CartesianGeometry > YawPitchRollAngles > isIdentity isIdentity Method Returns true if this rotation does nothing. If allowPeriodShift is false, any nonzero angle is considered a non-identity If allowPeriodShift is true, all angles are individually allowed to be any multiple of 360 degrees. isIdentity(allowPeriodShift: boolean = true): boolean Parameter Type Description allowPeriodShift boolean Returns - boolean Defined in core/geometry/src/geometry3d/YawPitchRollAngles.ts Line 145 Last Updated: 13 June, 2024