API Reference > geometry-core > Polyface > PolyfaceBuilder > findOrAddParamXY findOrAddParamXY Method Announce point coordinates. The implementation is free to either create a new param or (if known) return index of a prior param with the same coordinates. findOrAddParamXY(x: number, y: number): number Parameter Type Description x number y number Returns - number Defined in core/geometry/src/polyface/PolyfaceBuilder.ts Line 372 Last Updated: 13 June, 2024