def snap(self):
"""Snaps the sides of the square such that each corner (x,y) is modified to be a corner (x',y') where x' is the
integer value closest to x and y' is the integer value closest to y. This, of course, may change the shape to a
general quadrilateral, hence the return type. The only exception is when the square is positioned in a way where
this approximation will lead it to vanish into a single point. In that case, a call to snap() will not modify
this square in any way."""
newPoint1 = TwoDPoint(Square.regular_round(self.vertices[0].x),
Square.regular_round(self.vertices[0].y))
newPoint2 = TwoDPoint(Square.regular_round(self.vertices[1].x),
Square.regular_round(self.vertices[1].y))
newPoint3 = TwoDPoint(Square.regular_round(self.vertices[2].x),
Square.regular_round(self.vertices[2].y))
newPoint4 = TwoDPoint(Square.regular_round(self.vertices[3].x),
Square.regular_round(self.vertices[3].y))
if (newPoint1 == newPoint2 or newPoint1 == newPoint3
or newPoint1 == newPoint4 or newPoint2 == newPoint3
or newPoint2 == newPoint4 or newPoint3 == newPoint4):
return self
return Quadrilateral(Square.regular_round(self.vertices[0].x),
Square.regular_round(self.vertices[0].y),
Square.regular_round(self.vertices[1].x),
Square.regular_round(self.vertices[1].y),
Square.regular_round(self.vertices[2].x),
Square.regular_round(self.vertices[2].y),
Square.regular_round(self.vertices[3].x),
Square.regular_round(self.vertices[3].y)) # TODO
def setUp(self) -> None:
self.point1 = TwoDPoint(0, 0)
self.point2 = TwoDPoint(1, 2)
self.point3 = TwoDPoint(5, 0)
self.point4 = TwoDPoint(0, 0)
self.coordinates_even = [1, -2.8, 3, 4.6]
self.coordinates_odd = [-1, 2, -3.7, 4, 5]
def test_from_coordinates_decimal_even(self):
# Even values (decimal)
self.assertEqual(
[TwoDPoint(1.4, 1.9),
TwoDPoint(0.5, -0.5),
TwoDPoint(3.0, -1)],
TwoDPoint.from_coordinates([1.4, 1.9, 0.5, -0.5, 3.0, -1]))
def test_from_coordinates(self):
a = TwoDPoint(1, 2)
b = TwoDPoint(1, 3)
c = TwoDPoint(0, -1)
d = TwoDPoint(5, 6.5)
l = [a, b, c, d]
l2 = [1, 2, 1, 3, 0, -1, 5, 6.5]
self.assertEqual(l, TwoDPoint.from_coordinates(l2))
def test_from_coordinates(self):
list_of_points = [
TwoDPoint(0, 4),
TwoDPoint(6, 4),
TwoDPoint(6, 0),
TwoDPoint(0, 0)
]
self.assertEqual(TwoDPoint.from_coordinates([0, 4, 6, 4, 6, 0, 0, 0]),
list_of_points) # TODO
def test_center(self):
r1 = Rectangle(2, 1, 0, 1, 0, 0, 2, 0)
self.assertEqual(str(r1.center()), str(TwoDPoint(1.0, 0.5)))
with self.assertRaises(TypeError) as error:
r2 = Rectangle(2, 4, -2, 4, -5, 0, 5, 0) # Trapezoid
r3 = Rectangle(1, 1, 0, 1, 0, 0, 1, 0) # Square
self.assertEqual(str(r3.center()), str(TwoDPoint(0.5, 0.5)))
with self.assertRaises(TypeError) as error:
r4 = Rectangle(1, 1, 0, 1, 0, 0, 1, 0, 5, 6) # Too many arguments
def test_center(self):
print("Testing center method")
A = Rectangle(0, 0, -3.5, 0.0, -3.5, -7.8, 0, -7.8)
B = Rectangle(0, 0.0, -5, 0.0, -5, -5, 0, -5)
aCenter = TwoDPoint(-1.75, -3.9)
bCenter = TwoDPoint(-2.5, -2.5)
self.assertEqual(aCenter, A.center())
self.assertEqual(bCenter, B.center())
self.assertNotEqual(A.center(),TwoDPoint(0,0))
print("Done testing center method successfully")
class TestTwoDPoint(TestCase):
def setUp(self) -> None:
self.p1 = TwoDPoint(1, 2)
self.p2 = TwoDPoint(1, 2)
self.p3 = TwoDPoint(3, 2)
def test_from_coordinates(self):
list_of_points = [
TwoDPoint(0, 4),
TwoDPoint(6, 4),
TwoDPoint(6, 0),
TwoDPoint(0, 0)
]
self.assertEqual(TwoDPoint.from_coordinates([0, 4, 6, 4, 6, 0, 0, 0]),
list_of_points) # TODO
def test_eq(self):
self.assertTrue(self.p1.__eq__(self.p2))
self.assertFalse(self.p1.__eq__(self.p3))
self.assertFalse(self.p3.__eq__(self.p2))
def test_ne(self):
self.assertTrue(self.p1.__ne__(self.p3))
self.assertTrue(self.p2.__ne__(self.p3))
self.assertFalse(self.p1.__ne__(self.p2))
def test_str(self):
self.assertEqual(self.p1.__str__(), "(1, 2)")
def test_add(self):
self.assertEqual(self.p1.__add__(self.p3), TwoDPoint(4, 4))
def test_sub(self):
self.assertEqual(self.p3.__sub__(self.p1), TwoDPoint(2, 0))
def __init__(self, *floats):
if isinstance(floats[0], list):
points = TwoDPoint.from_coordinates(floats[0])
else:
points = TwoDPoint.from_coordinates(list(floats))
if len(points) != 4:
raise TypeError("Too many or too few points")
self.__vertices = tuple(points[0:4])
if not self.__is_member():
raise TypeError(
"A quadrilateral cannot be formed from given coordinates")
def center(self):
"""Returns the center of this rectangle, calculated to be the point of intersection of its diagonals."""
v = self.vertices
x, y = 0, 0
for pt in v:
x += pt.x
y += pt.y
if TwoDPoint.midpoint(v[0], v[2]) == TwoDPoint.midpoint(v[1], v[3]):
return TwoDPoint.midpoint(v[0], v[2])
else:
return TwoDPoint(x/4, y/4)
def __init__(self, *floats):
points = TwoDPoint.from_coordinates(list(floats))
if len(points) < 4:
raise Exception
self.__vertices = tuple(points[0:4])
if not self.__is_member():
raise Exception
def center(self):
newX = self.vertices[0].x + self.vertices[1].x + self.vertices[
2].x + self.vertices[3].x
newY = self.vertices[0].y + self.vertices[1].y + self.vertices[
2].y + self.vertices[3].y
return TwoDPoint(newX / 4.0, newY / 4.0) # TODO
def test__is_member(self):
print("Testing is_member method")
B = Rectangle(4, 2, -4, 2, -4, 0, 4, 0)
self.assertTrue((B._Rectangle__is_member()))
B._Quadrilateral__vertices = (TwoDPoint(0,0),TwoDPoint(0,0),TwoDPoint(0,0),TwoDPoint(0,0))
self.assertFalse((B._Rectangle__is_member()))
B._Quadrilateral__vertices = (TwoDPoint(0,0),TwoDPoint(-3.5,0),TwoDPoint(-3.5,-7.8),TwoDPoint(0,-7.8))
self.assertTrue((B._Rectangle__is_member()))
print("Done testing is_member method successfully")
def snap(self) -> 'TwoDPoint':
"""Snaps the sides of the square such that each corner (x,y) is modified to be a corner (x',y') where x' is the
integer value closest to x and y' is the integer value closest to y. This, of course, may change the shape to a
general quadrilateral, hence the return type. The only exception is when the square is positioned in a way where
this approximation will lead it to vanish into a single point. In that case, a call to snap() will not modify
this square in any way."""
vertices = self.vertices
point0 = TwoDPoint(int(round(vertices[0].x)),
int(round(vertices[0].y)))
point1 = TwoDPoint(int(round(vertices[1].x)),
int(round(vertices[1].y)))
if point0 == point1:
return self
return Quadrilateral(int(round(vertices[0].x)),
int(round(vertices[0].y)),
int(round(vertices[1].x)),
int(round(vertices[1].y)),
int(round(vertices[2].x)),
int(round(vertices[2].y)),
int(round(vertices[3].x)),
int(round(vertices[3].y))) # TODO
def test_from_coordinates(self):
print("Testing _from_coordinates method")
c = TwoDPoint.from_coordinates([0, 0, -3.5, 0.0])
d = [TwoDPoint(0, 0), TwoDPoint(-3.5, 0.0)]
e = [TwoDPoint(0, 0), TwoDPoint(-3.5, 3.5)]
self.assertEqual(c, d)
self.assertNotEqual(d, e)
with self.assertRaises(Exception) as assertStatement:
TwoDPoint.from_coordinates([1, 1, 1])
self.assertEqual(
"Odd number of floats given to build a list of 2-d points",
str(assertStatement.exception))
print("Done testing _from_coordinates successfully")
def test___ne__(self):
print("Testing __ne__ method")
twoD1 = TwoDPoint(0, 0)
twoD2 = TwoDPoint(0, 0)
twoD3 = TwoDPoint(1, 1)
self.assertFalse(twoD1 != twoD2)
self.assertTrue(twoD1 != twoD3)
self.assertFalse(twoD1.__ne__(twoD2))
self.assertTrue(twoD1.__ne__(twoD3))
print("Done testing __ne__ method successfully")
def __init__(self, *floats):
if not (len(list(floats)) == 8):
raise TypeError(
"A {} cannot be formed by the given coordinates.".format(
self.__class__.__name__))
points = TwoDPoint.from_coordinates(list(floats))
self.__vertices = tuple(points[0:4])
if ((self.vertices[0] == self.vertices[1])
or (self.vertices[0] == self.vertices[2])
or (self.vertices[0] == self.vertices[3])
or (self.vertices[1] == self.vertices[2])
or (self.vertices[1] == self.vertices[3])
or (self.vertices[2] == self.vertices[3])):
raise TypeError(
"A {} cannot be formed by the given coordinates.".format(
self.__class__.__name__))
def test_from_coordinates(
self): # Not sure if this is how it is supposed to be tested
# TODO
Expected = []
Expected.append(TwoDPoint(1.0, 1.0))
Expected.append(TwoDPoint(0.0, 1.0))
Expected.append(TwoDPoint(0.0, 0.0))
Expected.append(TwoDPoint(1.0, 0.0))
lst = [1.0, 1.0, 0.0, 1.0, 0.0, 0.0, 1.0, 0.0]
self.assertEqual(Expected, TwoDPoint.from_coordinates(lst))
Expected2 = []
Expected2.append(TwoDPoint(1.0, 1.0))
lst2 = [2.0, 2.0]
self.assertFalse(Expected2 == TwoDPoint.from_coordinates(
lst2)) # These are two points that are not equal to each other
def test__sub__(self):
print("Testing __add__ method")
twoD1 = TwoDPoint(1, 1)
twoD2 = TwoDPoint(1, 0)
twoD3 = TwoDPoint(0, 1)
self.assertEqual(twoD1.__sub__(twoD2), twoD3)
self.assertEqual(twoD1 - twoD2, twoD3)
self.assertNotEqual(twoD1.__sub__(twoD3), twoD3)
self.assertNotEqual(twoD1 - twoD1, twoD3)
with self.assertRaises(ValueError) as assertStatement:
twoD1 - "string"
self.assertEqual("Subtraction is possibile only between TwoDPoint",
str(assertStatement.exception))
print("Done testing __add__ method successfully")
def test_sub(self):
self.assertEqual(self.p3.__sub__(self.p1), TwoDPoint(2, 0))
def test_add(self):
self.assertEqual(self.p1.__add__(self.p3), TwoDPoint(4, 4))
def center(self) -> 'TwoDPoint':
"""Returns the center of this rectangle, calculated to be the point of intersection of its diagonals."""
return TwoDPoint((self.vertices[0].x + self.vertices[2].x) / 2,
(self.vertices[0].y + self.vertices[2].y) / 2) # TODO
def test_str(self):
self.assertEqual('(%g, %g)' % (1, 1),
TwoDPoint.__str__(TwoDPoint(1, 1)))
def test_sub_false(self):
self.assertFalse(
TwoDPoint(9, 2) == (TwoDPoint(3, 7) - TwoDPoint(3, 5)))
def __init__(self, *floats):
points = TwoDPoint.from_coordinates(list(floats))
self.__vertices = tuple(points[0:4])
def setUp(self) -> None:
self.p1 = TwoDPoint(1, 2)
self.p2 = TwoDPoint(1, 2)
self.p3 = TwoDPoint(3, 2)
def __init__(self, *floats):
points = TwoDPoint.from_coordinates(list(floats))
self.__vertices = tuple(points[0:4])
if not self.__is_member():
raise TypeError("A Quadrilateral cannot be formed by the given coordinates.")
def test_from_coordinates_odd(self):
# Odd values
with self.assertRaises(Exception):
TwoDPoint.from_coordinates([1, 1, 0, 0, 3])
def center(self) -> TwoDPoint:
"""Returns the center of this rectangle, calculated to be the point of intersection of its diagonals."""
val = self.vertices
return TwoDPoint(((val[0].x + val[2].x) / 2),
((val[0].x + val[2].x) / 2))
def test_sub_true(self):
self.assertTrue(TwoDPoint(5, 2) == (TwoDPoint(8, 7) - TwoDPoint(3, 5)))
