def test_commutative_case(multisegments_pair: MultisegmentsPair) -> None: first, second = multisegments_pair result = subtract_multisegments(first, second) assert equivalence(result == subtract_multisegments(second, first), are_multisegments_equivalent(first, second))
def test_commutative_case(multisegments_pair: MultisegmentsPair) -> None: left_multisegment, right_multisegment = multisegments_pair result = subtract_multisegments(left_multisegment, right_multisegment) assert equivalence( result == subtract_multisegments(right_multisegment, left_multisegment), are_multisegments_equivalent(left_multisegment, right_multisegment))
def test_intersection_minuend( multisegments_triplet: MultisegmentsTriplet) -> None: first, second, third = multisegments_triplet first_second_intersection = intersect_multisegments(first, second) second_third_difference = subtract_multisegments(second, third) assert (not is_multisegment(first_second_intersection) or not is_multisegment(second_third_difference) or (subtract_multisegments(first_second_intersection, third) == intersect_multisegments(first, second_third_difference)))
def test_difference_operand(multisegments_triplet: MultisegmentsTriplet ) -> None: first, second, third = multisegments_triplet first_second_difference = subtract_multisegments(first, second) first_third_intersection = intersect_multisegments(first, third) assert (not is_multisegment(first_second_difference) or not is_multisegment(first_third_intersection) or (intersect_multisegments(first_second_difference, third) == subtract_multisegments(first_third_intersection, second)))
def test_reversals(multisegments_pair: MultisegmentsPair) -> None: left_multisegment, right_multisegment = multisegments_pair result = subtract_multisegments(left_multisegment, right_multisegment) assert are_multisegments_similar( result, subtract_multisegments(reverse_multisegment(left_multisegment), right_multisegment)) assert result == subtract_multisegments( left_multisegment, reverse_multisegment(right_multisegment))
def test_intersection_minuend( multisegments_triplet: MultisegmentsTriplet) -> None: (left_multisegment, mid_multisegment, right_multisegment) = multisegments_triplet result = subtract_multisegments( intersect_multisegments(left_multisegment, mid_multisegment), right_multisegment) assert result == intersect_multisegments( left_multisegment, subtract_multisegments(mid_multisegment, right_multisegment))
def test_difference_operand( multisegments_triplet: MultisegmentsTriplet) -> None: first, second, third = multisegments_triplet first_second_difference = subtract_multisegments(first, second) second_third_difference = subtract_multisegments(second, third) assert (not is_multisegment(first_second_difference) or not is_multisegment(second_third_difference) or are_multisegments_equivalent( unite_multisegments(first_second_difference, third), subtract_multisegments(unite_multisegments(first, third), second_third_difference)))
def test_equivalents(multisegments_pair: MultisegmentsPair) -> None: left_multisegment, right_multisegment = multisegments_pair result = symmetric_subtract_multisegments(left_multisegment, right_multisegment) assert result == subtract_multisegments( unite_multisegments(left_multisegment, right_multisegment), intersect_multisegments(right_multisegment, left_multisegment)) assert result == unite_multisegments( subtract_multisegments(left_multisegment, right_multisegment), subtract_multisegments(right_multisegment, left_multisegment))
def test_union_subtrahend(multisegments_triplet: MultisegmentsTriplet) -> None: first, second, third = multisegments_triplet first_second_difference = subtract_multisegments(first, second) first_third_difference = subtract_multisegments(first, third) assert (not is_multisegment(first_second_difference) or not is_multisegment(first_third_difference) or are_compounds_similar( subtract_multisegments(first, unite_multisegments( second, third)), intersect_multisegments(first_second_difference, first_third_difference)))
def test_difference_operand(multisegments_triplet: MultisegmentsTriplet ) -> None: (left_multisegment, mid_multisegment, right_multisegment) = multisegments_triplet result = intersect_multisegments( subtract_multisegments(left_multisegment, mid_multisegment), right_multisegment) assert result == subtract_multisegments( intersect_multisegments(left_multisegment, right_multisegment), mid_multisegment)
def test_union_subtrahend(multisegments_triplet: MultisegmentsTriplet) -> None: (left_multisegment, mid_multisegment, right_multisegment) = multisegments_triplet result = subtract_multisegments( left_multisegment, unite_multisegments(mid_multisegment, right_multisegment)) assert are_multisegments_similar( result, intersect_multisegments( subtract_multisegments(left_multisegment, mid_multisegment), subtract_multisegments(left_multisegment, right_multisegment)))
def test_difference_subtrahend( multisegments_triplet: MultisegmentsTriplet) -> None: (left_multisegment, mid_multisegment, right_multisegment) = multisegments_triplet result = subtract_multisegments( left_multisegment, subtract_multisegments(mid_multisegment, right_multisegment)) assert are_multisegments_equivalent( result, unite_multisegments( subtract_multisegments(left_multisegment, mid_multisegment), intersect_multisegments(left_multisegment, right_multisegment)))
def test_difference_operand( multisegments_triplet: MultisegmentsTriplet) -> None: (left_multisegment, mid_multisegment, right_multisegment) = multisegments_triplet result = unite_multisegments( subtract_multisegments(left_multisegment, mid_multisegment), right_multisegment) assert are_multisegments_equivalent( result, subtract_multisegments( unite_multisegments(left_multisegment, right_multisegment), subtract_multisegments(mid_multisegment, right_multisegment)))
def test_reversals(multisegments_pair: MultisegmentsPair) -> None: first, second = multisegments_pair result = subtract_multisegments(first, second) assert are_compounds_similar( result, subtract_multisegments(reverse_multisegment(first), second)) assert result == subtract_multisegments(first, reverse_multisegment(second)) assert are_compounds_similar( result, reverse_compound_coordinates( subtract_multisegments(reverse_multisegment_coordinates(first), reverse_multisegment_coordinates(second))))
def test_intersection_subtrahend( multisegments_triplet: MultisegmentsTriplet) -> None: first, second, third = multisegments_triplet first_second_difference = subtract_multisegments(first, second) first_third_difference = subtract_multisegments(first, third) second_third_intersection = intersect_multisegments(second, third) assert (not is_multisegment(first_second_difference) or not is_multisegment(first_third_difference) or not is_multisegment(second_third_intersection) or are_multisegments_equivalent( subtract_multisegments(first, second_third_intersection), unite_multisegments(first_second_difference, first_third_difference)))
def test_equivalents(multisegments_pair: MultisegmentsPair) -> None: first, second = multisegments_pair result = symmetric_subtract_multisegments(first, second) first_second_difference = subtract_multisegments(first, second) second_first_difference = subtract_multisegments(second, first) second_first_intersection = intersect_multisegments(second, first) assert (not is_multisegment(second_first_intersection) or result == subtract_multisegments( unite_multisegments(first, second), second_first_intersection)) assert (not is_multisegment(first_second_difference) or not is_multisegment(second_first_difference) or result == unite_multisegments(first_second_difference, second_first_difference))
def __sub__(self, other: Compound[Coordinate]) -> Compound[Coordinate]: """ Returns difference of the multisegment with the other geometry. Time complexity: ``O(segments_count * log segments_count)`` Memory complexity: ``O(segments_count)`` where ``segments_count = len(self.segments)``. >>> from gon.base import EMPTY, Multisegment, Point, Segment >>> multisegment = Multisegment([Segment(Point(0, 0), Point(1, 0)), ... Segment(Point(0, 1), Point(1, 1))]) >>> multisegment - multisegment is EMPTY True """ return (self if isinstance(other, Multipoint) else (subtract_segment_from_multisegment(self, other, context=self._context) if isinstance(other, Segment) else (subtract_multisegments(self, other, context=self._context) if isinstance(other, Multisegment) else NotImplemented)))
def test_left_absorbing_element( empty_multisegment_with_multisegment: MultisegmentsPair) -> None: empty_multisegment, multisegment = empty_multisegment_with_multisegment result = subtract_multisegments(empty_multisegment, multisegment) assert not result.segments
def test_right_neutral_element( empty_multisegment_with_multisegment: MultisegmentsPair) -> None: empty_multisegment, multisegment = empty_multisegment_with_multisegment result = subtract_multisegments(multisegment, empty_multisegment) assert are_multisegments_similar(result, multisegment)
def __rsub__(self, other: Compound[Coordinate]) -> Compound[Coordinate]: """ Returns difference of the other geometry with the contour. Time complexity: ``O(vertices_count * log vertices_count)`` Memory complexity: ``O(vertices_count)`` where ``vertices_count = len(self.vertices)``. """ return (subtract_multisegment_from_segment( other, self, context=self._context) if isinstance(other, Segment) else (subtract_multisegments(other, self, context=self._context) if isinstance(other, Multisegment) else NotImplemented))
def __sub__(self, other: Compound[Coordinate]) -> Compound[Coordinate]: """ Returns difference of the contour with the other geometry. Time complexity: ``O(vertices_count * log vertices_count)`` Memory complexity: ``O(vertices_count)`` where ``vertices_count = len(self.vertices)``. >>> from gon.base import EMPTY, Contour, Point >>> contour = Contour([Point(0, 0), Point(1, 0), Point(0, 1)]) >>> contour - contour is EMPTY True """ return (self if isinstance(other, Multipoint) else (subtract_segment_from_multisegment( self, other, context=self._context) if isinstance( other, Segment) else (subtract_multisegments(self, other, context=self._context) if isinstance(other, Linear) else NotImplemented)))
def test_basic(multisegments_pair: MultisegmentsPair) -> None: first, second = multisegments_pair result = subtract_multisegments(first, second) assert is_maybe_linear(result)
def test_basic(multisegments_pair: MultisegmentsPair) -> None: left_multisegment, right_multisegment = multisegments_pair result = subtract_multisegments(left_multisegment, right_multisegment) assert is_multisegment(result)