astro-ndslice

A collection of simple tools to slicing astronomical images (many are applicable to general ndarray).

• Module lists: Contains some universally usable convenience functions.
  • is_list_like : Checks if anything is list-like (list, tuple, ndarray).
  • listify: Convert scalar or iterable into list (scalar2list=True, none2list=False)
  • ndfy: Convert scalar or iterable into ndarray (see docstring for details)
• Module slices: Contains tools to convert FITS convention (e.g., "[10:20, 1:2]") or bezel (e.g., bezel=[10, 10]) into python slice.
  • Most users will only need slicefy (e.g., data[slicefy("[10:110, 50:150]")]).
• Module offset: Contains tools to find the offsets between two images/FITS files (essential before image combination)
  • To use calc_offset_wcs or calc_offset_physical, astropy is required.