API Reference > geometry-core > ArraysAndInterfaces > GrowableXYArray > transferFromGrowableXYArray transferFromGrowableXYArray Method Read coordinates from source array, place them at index within this array. transferFromGrowableXYArray(destIndex: number, source: GrowableXYArray, sourceIndex: number): boolean Parameter Type Description destIndex number point index where coordinates are to be placed in this array source GrowableXYArray source array sourceIndex number point index in source array Returns - boolean true if destIndex and sourceIndex are both valid. Defined in core/geometry/src/geometry3d/GrowableXYArray.ts Line 261 Last Updated: 15 June, 2021