abtem.antialias

abtem.antialias#

Module for describing antialiasing objects.

Module Contents#

Classes#

AntialiasAperture

Functions#

antialias_aperture

Array defining a Fourier-space antialiasing aperture.

API#

class abtem.antialias.AntialiasAperture[source]#

Bases: abtem.core.grid.HasGrid2DMixin, abtem.core.utils.CopyMixin, abtem.core.utils.EqualityMixin

Initialization

bandlimit(...) → abtem.antialias.U[source]#
get_array(...)[source]#
abtem.antialias.antialias_aperture(...) → ndarray[source]#

Array defining a Fourier-space antialiasing aperture.

Parameters:

  • gpts (two int, optional) – Number of grid points in x and y describing the antialiasing aperture.

  • sampling (two float, optional) – Reciprocal-space sampling in x and y of the antialiasing aperture. Units are arbitrary.

Returns:

antialias_aperture_array

Return type:

ndarray