API Reference > geometry-core > Curve > RegionOps > computeXYArea computeXYArea MethodStatic Return an xy area for a loop, parity region, or union region. If rawMomentData is the MomentData returned by computeXYAreaMoments, convert to principal axes and moments with call principalMomentData = MomentData.inertiaProductsToPrincipalAxes (rawMomentData.origin, rawMomentData.sums); computeXYArea(root: AnyRegion): undefined | number Parameter Type Description root AnyRegion any Loop, ParityRegion, or UnionRegion. Returns - undefined | number Defined in curve/RegionOps.ts Line 104 Last Updated: 11 June, 2024