def test_concave_polygon(): polygon = Polygon() polygon.add_vertex(Point2D(10,-10)) polygon.add_vertex(Point2D(5,0)) polygon.add_vertex(Point2D(10,10)) polygon.add_vertex(Point2D(-10,10)) polygon.add_vertex(Point2D(-5,0)) polygon.add_vertex(Point2D(-10,-10)) # test convexity c_true = False c_test = polygon.determine_convexity() assert c_test == c_true # test complexity c_true = False c_test = polygon.determine_complexity() assert c_test == c_true # test points in polygon point = Point2D(0,1) assert polygon.determine_point_location(point) == 1 point = Point2D(-8,-10) assert polygon.determine_point_location(point) == 2 point = Point2D(10,10) assert polygon.determine_point_location(point) == 2 point = Point2D(10,0) assert polygon.determine_point_location(point) == 0
def test_init_distance():
"""
Tests the basic and distance methods of the Point2D class.
"""
p1 = Point2D(1, 5)
p2 = Point2D(-2, 2)
d_true = 4.242640687119286
d_test = p1.calculate_distance(p2)
assert d_test == pytest.approx(d_true, 1e-12)
def test_point_distance(): p1 = Point2D(-4,2) p2 = Point2D(6,2) p3 = Point2D(0,5.75) l = Line2D() l.add_endpoint(p1) l.add_endpoint(p2) d_true = 3.75 d_test = l.calculate_point_distance(p3) assert d_test == d_true
def test_left_of():
"""
Test the `is_left_of` method.
"""
p1 = Point2D(-2, 2)
p2 = Point2D(2, -2)
p = Point2D(0, 2)
assert p.is_left_of(p1, p2)
p = Point2D(0, -2)
assert not p.is_left_of(p1, p2)
def test_init_add_vector(): """ Tests the basic methods of the Line2D class. """ p1 = Point2D(1,5) p2 = Point2D(-2,2) l = Line2D(point1=p1) l.add_endpoint(p2) v = l.as_vector() assert isinstance(v,Vector)
def test_line_intersection_point(): p1 = Point2D(-4,2) p2 = Point2D(6,2) l = Line2D() l.add_endpoint(p1) l.add_endpoint(p2) l2 = Line2D(Point2D(2.45,-5),Point2D(2.45,10)) p_true = Point2D(2.45,2) p_test = l.calculate_line_intersection_point(l2) assert p_test.x == p_true.x assert p_test.y == p_true.y
def test_point_location(): p1 = Point2D(-4,2) p2 = Point2D(6,2) l = Line2D() l.add_endpoint(p1) l.add_endpoint(p2) p = Point2D(0,5.75) assert l.determine_point_location(p) == 0 p = Point2D(0,2) assert l.determine_point_location(p) == 1 p = Point2D(-100,2) assert l.determine_point_location(p) == 2
def test_length_epsilon(): p1 = Point2D(-4,2) p2 = Point2D(6,2) l = Line2D() l.add_endpoint(p1) l.add_endpoint(p2) d_true = 10 d_test = l.calculate_length() assert d_test == d_true e_true = 1e-4 e_test = l.calculate_epsilon() assert e_test == e_true
def test_line_intersection(): p1 = Point2D(-4,2) p2 = Point2D(6,2) l = Line2D() l.add_endpoint(p1) l.add_endpoint(p2) l2 = Line2D(Point2D(-2,-2),Point2D(2,3)) assert l.determine_line_intersection(l2) == 1 l2 = Line2D(Point2D(7,-2),Point2D(2,-3)) assert l.determine_line_intersection(l2) == 2 l2 = Line2D(Point2D(5,10),Point2D(-10,10)) assert l.determine_line_parallel(l2)
def test_export_polygon(tmp_path):
p1 = Polygon()
p1.add_vertex(Point2D(-1, -1))
p1.add_vertex(Point2D(-2, 1))
p1.add_vertex(Point2D(-1, 5))
p1.add_vertex(Point2D(-4, 3))
p1.add_vertex(Point2D(-5, -3))
p1.add_vertex(Point2D(-3, 0))
p2 = Polygon()
p2.add_vertex(Point2D(5, 5))
p2.add_vertex(Point2D(6, 3))
p2.add_vertex(Point2D(3, -3))
p2.add_vertex(Point2D(2, 2))
multi_polygon = MultiPolygon()
multi_polygon.add_polygon(p1)
multi_polygon.add_polygon(p2)
export_polygon(multi_polygon, os.path.join(tmp_path, 'test.txt'))
multi_polygon_test = read_polygon_file(os.path.join(tmp_path, 'test.txt'))
assert multi_polygon_test.polygons[0].vertices[0].x == -1
assert multi_polygon_test.polygons[1].vertices[2].y == -3
def test_line_parallel(): p1 = Point2D(-4,2) p2 = Point2D(6,2) l = Line2D() l.add_endpoint(p1) l.add_endpoint(p2) l2 = Line2D(Point2D(5,10),Point2D(-10,10)) assert l.determine_line_parallel(l2) l2 = Line2D(Point2D(0,0),Point2D(10,10)) assert not l.determine_line_parallel(l2)
def test_multipolygon(): p1 = Polygon() p1.add_vertex(Point2D(-1,-1)) p1.add_vertex(Point2D(-2,1)) p1.add_vertex(Point2D(-1,5)) p1.add_vertex(Point2D(-4,3)) p1.add_vertex(Point2D(-5,-3)) p1.add_vertex(Point2D(-3,0)) p2 = Polygon() p2.add_vertex(Point2D(5,5)) p2.add_vertex(Point2D(6,3)) p2.add_vertex(Point2D(3,-3)) p2.add_vertex(Point2D(2,2)) multi_polygon = MultiPolygon() multi_polygon.add_polygon(p1) multi_polygon.add_polygon(p2) # test points in polygon point = Point2D(5,2) assert multi_polygon.determine_point_location(point) == 1 point = Point2D(-4,-1) assert multi_polygon.determine_point_location(point) == 1 point = Point2D(-2,0) assert multi_polygon.determine_point_location(point) == 1 point = Point2D(-2,1) assert multi_polygon.determine_point_location(point) == 2 point = Point2D(0,0) assert multi_polygon.determine_point_location(point) == 0 point = Point2D(4,-3) assert multi_polygon.determine_point_location(point) == 0 point = Point2D(-6,1) assert multi_polygon.determine_point_location(point) == 0
def test_triangle(): P1 = Point2D(5,0) P2 = Point2D(0,5) P3 = Point2D(-5,0) points = (P1,P2,P3) a = 10.0 b = np.sqrt(5.0**2.0+5.0**2.0) c = np.sqrt(5.0**2.0+5.0**2.0) triangle = Polygon(points) # test perimeter p_true = a+b+c p_test = triangle.calculate_perimeter() assert p_test == pytest.approx(p_true,1e-12) # test area s = (a+b+c)/2.0 A_true = np.sqrt(s*(s-a)*(s-b)*(s-c)) A_test = triangle.calculate_area() assert A_test == pytest.approx(A_true,1e-12) # test centroid x_true = (5.0+0-5.0)/3.0 y_true = (0+5.0+0)/3.0 c = triangle.calculate_centroid() x_test = c.x y_test = c.y assert x_test == pytest.approx(x_true,1e-12) assert y_test == pytest.approx(y_true,1e-12) # test orientation o_true = 'ccw' o_test = triangle.determine_orientation() assert o_test == o_true # test convexity c_true = True c_test = triangle.determine_convexity() assert c_test == c_true # test complexity c_true = False c_test = triangle.determine_complexity() assert c_test == c_true # tests for bounding box bbox = triangle.determine_bounding_box() p_true = 5.0*2.0+10.0*2.0 p_test = bbox.calculate_perimeter() assert p_test == pytest.approx(p_true,1e-12) A_true = 5.0*10.0 A_test = bbox.calculate_area() assert A_test == pytest.approx(A_true,1e-12) x_true = (5.0-5.0)/2.0 y_true = (0+5.0)/2.0 c = bbox.calculate_centroid() x_test = c.x y_test = c.y assert x_test == pytest.approx(x_true,1e-12) assert y_test == pytest.approx(y_true,1e-12) o_true = 'ccw' o_test = bbox.determine_orientation() assert o_test == o_true c_true = True c_test = bbox.determine_convexity() assert c_test == c_true c_true = False c_test = bbox.determine_complexity() assert c_test == c_true # test points in polygon point = Point2D(0,1) assert triangle.determine_point_location(point) == 1 point = Point2D(-4,0.5) assert triangle.determine_point_location(point) == 1 point = Point2D(4,1) assert triangle.determine_point_location(point) == 2 point = Point2D(0,0) assert triangle.determine_point_location(point) == 2 point = Point2D(-1,-1) assert triangle.determine_point_location(point) == 0