API Reference > geometry-core > CartesianGeometry > AngleSweep > angleToSignedPeriodicFraction angleToSignedPeriodicFraction Method map an angle to a fractional coordinate which is: the start angle is at fraction 0 the end angle is at fraction 1 interior angles are between 0 and 1 small negative for angles just "before" the start angle more than one for angles just "after" the end angle the periodic jump is at the middle of the "outside" interval angleToSignedPeriodicFraction(theta: Angle): number Parameter Type Description theta Angle Returns - number Defined in core/geometry/src/geometry3d/AngleSweep.ts Line 224 Last Updated: 13 June, 2024