lentil.Rotate

class lentil.Rotate(angle=0, unit='degrees', order=3)

Rotate a Wavefront by a specified angle

Parameters:

• angle (float) – Rotation angle counterclockwise from the horizontal.

• unit ({'degrees', 'radians'}, optional) – Units of angle. Default is ‘degrees’.

• order (int) – The order of the spline interpolation (if needed), default is 3. The order has to be in the range 0-5.

Notes

If the angle is an even multiple of 90 degrees, numpy.rot90 is used to perform the rotation rather than scipy.ndimage.rotate. In this case, the order parameter is irrelevant because no interpolation occurs.

Attributes

amplitude	Electric field amplitude transmission
diameter	Plane diameter
frozen	Freeze (cache) state
global_mask	Flattened view of mask
mask	Binary transmission mask
opd	Optical path difference
pixelscale	Physical sampling of each pixel in the plane
ptt_vector	2D vector representing piston and tilt in x and y.
ptype	Plane type
shape	Plane dimensions computed from mask.
size	Number of independent masks (segments) in mask

Methods

fit_tilt([inplace])	Fit and remove tilt from Plane opd via least squares.
freeze([inplace])	Cache properties defined in Plane.__freeze_attrs__.
multiply(wavefront)	Multiply with a wavefront
resample(pixelscale)	Resample a plane via interpolation.
rescale(scale)	Rescale a plane via interpolation.
thaw()	Clear property cache