API Reference > geometry-core > ArraysAndInterfaces > GrowableXYZArray > constructor constructor Method Construct a new GrowablePoint3d array. GrowableXYZArray(numPoints: number = 8): GrowableXYZArray Parameter Type Description numPoints number initial capacity. Returns - GrowableXYZArray Defined in geometry3d/GrowableXYZArray.ts Line 40 Last Updated: 11 June, 2024