NDCubeSlicingMixin#
- class ndcube.mixins.NDCubeSlicingMixin[source]#
- Bases: - NDSlicingMixin- Mixin to provide slicing on objects using the - NDDatainterface.- The - data,- mask,- uncertaintyand- wcswill be sliced, if set and sliceable. The- unitand- metawill be untouched. The return will be a reference and not a copy, if possible.- Examples - Using this Mixin with - NDData:- >>> from astropy.nddata import NDData, NDSlicingMixin >>> class NDDataSliceable(NDSlicingMixin, NDData): ... pass - Slicing an instance containing data: - >>> nd = NDDataSliceable([1,2,3,4,5]) >>> nd[1:3] NDDataSliceable([2, 3]) - Also the other attributes are sliced for example the - mask:- >>> import numpy as np >>> mask = np.array([True, False, True, True, False]) >>> nd2 = NDDataSliceable(nd, mask=mask) >>> nd2slc = nd2[1:3] >>> nd2slc[nd2slc.mask] NDDataSliceable([—]) - Be aware that changing values of the sliced instance will change the values of the original: - >>> nd3 = nd2[1:3] >>> nd3.data[0] = 100 >>> nd2 NDDataSliceable([———, 100, ———, ———, 5]) - See also - NDDataRef,- NDDataArray
