finesse.knm.maps.Map.get_linear_terms
- Map.get_linear_terms(self, double spot_size: float)
Returns the spot weighted x and y linear terms from the OPD map data. For a surface z this is:
\[z(x,y) = a x + b y \]- Parameters:
- spot_sizefloat
Spot size to use for weighting during curvature removal
- Returns:
- a, b(float, float)
Linear terms in x and y