API Reference > geometry-core > ArraysAndInterfaces > IndexedXYZCollection > accumulateScaledXYZ accumulateScaledXYZ MethodAbstract Accumulate scale times the x,y,z values at index. No action if index is out of bounds. accumulateScaledXYZ(index: number, scale: number, sum: Point3d): void Parameter Type Description index number scale number sum Point3d Returns - void Defined in core/geometry/src/geometry3d/IndexedXYZCollection.ts Line 149 Last Updated: 13 June, 2024