slit_polyval

excalibuhr.utils.slit_polyval(xx, meta)

evaluate slit curvature polynomials given the pixel grid

Parameters:

• xx (array or list) – pixel grid or a list of x coordinates

• meta (array) – meta polynomial coefficiences for the change of slit tilt over x coordinates

Returns:

slit – the evaluated polynomial coefficiences describing the slit tilt for each given x coordinate

Return type:

list