finesse.utilities.maps.overlap_piston_coefficient¶
- finesse.utilities.maps.overlap_piston_coefficient(x, y, z, weight_spot: float)[source]¶
Computes the amount of weighted piston term there is in some 2D data like a surface map. This is computed by evaluating a weighted Hermite polynomial overlap integral in an efficient manner.
- Parameters:
- x, yarray_like
1D Array of x and y describing the 2D plane of z
- zarray_like
2D optical path depth [metres]
- weight_spotfloat
Beam spot size to weight over
- Returns:
- pistonfloat
amount of piston term