degrid_visibility_from_griddata

ska_sdp_func_python.grid_data.gridding.degrid_visibility_from_griddata(vis, griddata, cf)

Degrid blockVisibility from a GridData. Note: if parameter oversampling_synthesised_beam in ska_sdp_func_python.imaging.base.advise_wide_field() has been set less than 2, some visibilities would be discarded.

Parameters:

• vis – Visibility to be degridded

• griddata – GridData containing image

• cf – Convolution function (as GridData)

Returns:

Visibility