def __init__(self, items=None, item_class=None):
from abjad.tools import pitchtools
if isinstance(items, (
pitchtools.PitchSegment,
pitchtools.PitchSet,
pitchtools.PitchClassSegment,
pitchtools.PitchClassSet,
)):
intervals = []
for first, second in \
sequencetools.yield_all_unordered_pairs_of_sequence(
tuple(items)):
intervals.append(second - first)
items = intervals
Vector.__init__(
self,
items=items,
item_class=item_class,
)
def __init__(self, items=None, item_class=None):
from abjad.tools import pitchtools
if isinstance(items, (
pitchtools.PitchSegment,
pitchtools.PitchSet,
pitchtools.PitchClassSegment,
pitchtools.PitchClassSet,
)):
intervals = []
for first, second in \
sequencetools.yield_all_unordered_pairs_of_sequence(
tuple(items)):
intervals.append(second - first)
items = intervals
Vector.__init__(
self,
items=items,
item_class=item_class,
)
def __init__(self, items=None, item_class=None):
from abjad.tools import pitchtools
if isinstance(items, (
pitchtools.PitchSegment,
pitchtools.PitchSet,
pitchtools.PitchClassSegment,
pitchtools.PitchClassSet,
)):
intervals = []
enumerator = mathtools.Enumerator(items)
pairs = enumerator.yield_pairs()
for first, second in pairs:
intervals.append(second - first)
items = intervals
Vector.__init__(
self,
items=items,
item_class=item_class,
)
