constructor Method

Construct a new growable array.

GrowableXYArray(numPoints?: number, growthFactor?: number, data?: Float64Array): GrowableXYArray

Parameter Type Description
numPoints number initial capacity in xy tuples. Default value is 8.
growthFactor number used by ensureCapacity to expand requested reallocation size. Default value is 1.5.
For no expansion, use 1.
data Float64Array optional array to serve as the point source. If data is supplied, numPoints is reinterpreted as
the initial point count, defaulting to and bounded above by the array's point capacity. If a subsequent push
would exceed the array's capacity, a new Float64Array of the same buffer type is allocated and filled.

Returns - GrowableXYArray

Defined in

Last Updated: 18 April, 2026