API Reference > geometry-core > Numerics > MomentData > quantitySum quantitySum AccessorReadOnly Return the lower-right (3,3) entry in the sums. This is the quantity (i.e. length, area, or volume) summed get: number Returns - number Defined in core/geometry/src/geometry4d/MomentData.ts Line 54 Last Updated: 13 June, 2024