FanBeamGeometry.__getitem__

FanBeamGeometry.__getitem__(indices)

Return self[indices].

This is defined by

self[indices].partition == self.partition[indices]

where all other parameters are the same.

Examples

>>> apart = odl.uniform_partition(0, 4, 4)
>>> dpart = odl.uniform_partition(-1, 1, 20)
>>> geom = odl.tomo.FanBeamGeometry(apart, dpart, 50, 100)

Extract sub-geometry with every second angle:

>>> geom[::2, :]
FanBeamGeometry(
    nonuniform_partition(
        [ 0.5,  2.5],
        min_pt=0.0, max_pt=4.0
    ),
    uniform_partition(-1.0, 1.0, 20),
    src_radius=50.0,
    det_radius=100.0
)