def __init__(self, tracker, mirror, alignment, input_y, tilted=False, **kwargs):
self._serial = kwargs.pop('serial', 'unsorted')
self.tracker = tracker
self.mirror = mirror
self.tilted = tilted
self.input_y = input_y
self.alignment = None
if alignment is not None:
try:
if alignment.alignment_date() is not None:
self.alignment = alignment
except AttributeError:
try:
file_data = load_object(alignment)
if file_data.alignment_date() is not None:
self.alignment = file_data
except (AttributeError, IOError):
# Input alignment file is not valid.
pass
if self.alignment is None:
self.alignment = Alignment()
self.tracker.devices['driver'].home()
self.alignment.align(self.tracker, home=True, tilted=tilted,
mirror=mirror)
save_object(self.alignment, alignment)
# Output data.
self.data = []
def save_data(self, path):
"""Saves the data in a serialized object format to a gzipped tarball at
the given path. To reopen the data, unpickle it using
itop.utilities.load_object()
"""
output = list(self.data)
output.insert(0, (self.input_y, self.alignment, self._serial))
save_object(output, path)
