def _make_middle_of_numeric_map_part(self, middle):
if self.fill_with_notes:
if self.incise_divisions:
if 0 < middle:
if self.body_ratio is not None:
shards = mathtools.divide_number_by_ratio(
middle, self.body_ratio)
return tuple(shards)
else:
return (middle,)
else:
return ()
elif self.incise_output:
if 0 < middle:
return (middle,)
else:
return ()
else:
message = 'must incise divisions or output.'
raise Exception(message)
else:
if self.incise_divisions:
if 0 < middle:
return (-abs(middle),)
else:
return ()
elif self.incise_output:
if 0 < middle:
return (-abs(middle), )
else:
return ()
else:
message = 'must incise divisions or output.'
raise Exception(message)
def _make_middle_of_numeric_map_part(self, middle):
incise_specifier = self._get_incise_specifier()
if incise_specifier.fill_with_notes:
if not incise_specifier.outer_divisions_only:
if 0 < middle:
if incise_specifier.body_ratio is not None:
shards = mathtools.divide_number_by_ratio(
middle, incise_specifier.body_ratio)
return tuple(shards)
else:
return (middle, )
else:
return ()
elif incise_specifier.outer_divisions_only:
if 0 < middle:
return (middle, )
else:
return ()
else:
message = 'must incise divisions or output.'
raise Exception(message)
else:
if not incise_specifier.outer_divisions_only:
if 0 < middle:
return (-abs(middle), )
else:
return ()
elif incise_specifier.outer_divisions_only:
if 0 < middle:
return (-abs(middle), )
else:
return ()
else:
message = 'must incise divisions or output.'
raise Exception(message)
def _make_middle_of_numeric_map_part(self, middle):
incise_specifier = self._get_incise_specifier()
if incise_specifier.fill_with_notes:
if not incise_specifier.outer_divisions_only:
if 0 < middle:
if incise_specifier.body_ratio is not None:
shards = mathtools.divide_number_by_ratio(middle, incise_specifier.body_ratio)
return tuple(shards)
else:
return (middle,)
else:
return ()
elif incise_specifier.outer_divisions_only:
if 0 < middle:
return (middle,)
else:
return ()
else:
message = "must incise divisions or output."
raise Exception(message)
else:
if not incise_specifier.outer_divisions_only:
if 0 < middle:
return (-abs(middle),)
else:
return ()
elif incise_specifier.outer_divisions_only:
if 0 < middle:
return (-abs(middle),)
else:
return ()
else:
message = "must incise divisions or output."
raise Exception(message)
def _divide_by_ratio(self, start_offset, stop_offset, ratio, the_part):
original_start_offset, original_stop_offset = start_offset, stop_offset
original_duration = original_stop_offset - original_start_offset
duration_shards = mathtools.divide_number_by_ratio(original_duration, ratio)
duration_shards_before = duration_shards[:the_part]
duration_before = sum(duration_shards_before)
selected_duration_shard = duration_shards[the_part]
new_start_offset = original_start_offset + duration_before
new_stop_offset = new_start_offset + selected_duration_shard
return new_start_offset, new_stop_offset
def test_mathtools_divide_number_by_ratio_01():
r'''Divide int by ratio.
'''
duration = mathtools.divide_number_by_ratio(1, [1, 1, 2])
assert len(duration) == 3
assert duration[0] == Duration(1, 4)
assert duration[1] == Duration(1, 4)
assert duration[2] == Duration(1, 2)
def _make_middle_of_numeric_map_part(self, middle):
if 0 < middle:
if self.body_ratio is not None:
shards = mathtools.divide_number_by_ratio(
middle, self.body_ratio)
return tuple(shards)
else:
return (middle, )
else:
return ()
def _divide_by_ratio(self, start_offset, stop_offset, ratio, the_part):
original_start_offset, original_stop_offset = \
start_offset, stop_offset
original_duration = \
original_stop_offset - original_start_offset
duration_shards = \
mathtools.divide_number_by_ratio(original_duration, ratio)
duration_shards_before = duration_shards[:the_part]
duration_before = sum(duration_shards_before)
selected_duration_shard = duration_shards[the_part]
new_start_offset = original_start_offset + duration_before
new_stop_offset = new_start_offset + selected_duration_shard
return new_start_offset, new_stop_offset
def _make_middle_of_numeric_map_part(self, middle):
from abjad.tools import rhythmmakertools
incise_specifier = self.incise_specifier
if incise_specifier is None:
incise_specifier = rhythmmakertools.InciseSpecifier()
if incise_specifier.fill_with_notes:
if not incise_specifier.outer_divisions_only:
if 0 < middle:
if incise_specifier.body_ratio is not None:
shards = mathtools.divide_number_by_ratio(
middle, incise_specifier.body_ratio)
return tuple(shards)
else:
return (middle,)
else:
return ()
elif incise_specifier.outer_divisions_only:
if 0 < middle:
return (middle,)
else:
return ()
else:
message = 'must incise divisions or output.'
raise Exception(message)
else:
if not incise_specifier.outer_divisions_only:
if 0 < middle:
return (-abs(middle),)
else:
return ()
elif incise_specifier.outer_divisions_only:
if 0 < middle:
return (-abs(middle),)
else:
return ()
else:
message = 'must incise divisions or output.'
raise Exception(message)
def test_mathtools_divide_number_by_ratio_04():
r'''Duration returns durations.
'''
result = mathtools.divide_number_by_ratio(Duration(1, 4), [1, 1, 1])
assert result == [Duration(1, 12), Duration(1, 12), Duration(1, 12)]
