def test__too_large_interp_dist__raises_runtimeerror(self):
POLYGON = Polygon([[0, 0], [10, 0], [10, 10], [0, 10]])
with self.assertRaises(RuntimeError):
Centerline(POLYGON, 10)
centerline = Centerline(POLYGON, 5)
self.assertIsInstance(centerline, Centerline)
def test__polygon_with_interior_ring__returns_multilinestring(self):
EXTERIOR = [(0, 0), (0, 2), (2, 2), (2, 0), (0, 0)]
INTERIOR = [(1, 0), (0.5, 0.5), (1, 1), (1.5, 0.5), (1, 0)][::-1]
POLYGON = Polygon(EXTERIOR, [INTERIOR])
centerline = Centerline(POLYGON)
self.assertIsInstance(centerline, MultiLineString)
def test__object_has_assigned_attributes(self):
POLYGON = Polygon([[0, 0], [0, 4], [4, 4], [4, 0]])
ATTRIBUTES = {'id': 1, 'name': 'polygon', 'valid': True}
centerline = Centerline(POLYGON, **ATTRIBUTES)
self.assertEqual(centerline.id, ATTRIBUTES.get('id'))
self.assertEqual(centerline.name, ATTRIBUTES.get('name'))
self.assertEqual(centerline.valid, ATTRIBUTES.get('valid'))
def test__geometry_collection__raises_valueerror(self):
GEOMETRY_COLLECTION = GeometryCollection(
(Point(0, 0),
LineString([(0, 0), (0.8, 0.8), (1.8, 0.95),
(2.6, 0.5)]), Polygon([[0, 0], [0, 4], [4, 4], [4,
0]])))
with self.assertRaises(ValueError):
Centerline(GEOMETRY_COLLECTION)
def test__multipolygon__raises_valueerror(self):
POLYGON_1 = Polygon([[0, 0], [0, 4], [4, 4], [4, 0]])
POLYGON_2 = Polygon([[5, 5], [5, 9], [9, 9], [9, 5]])
MULTIPOLYGON = MultiPolygon([POLYGON_1, POLYGON_2])
centerline = Centerline(MULTIPOLYGON)
self.assertIsInstance(centerline, MultiLineString)
def test__multilinestring__raises_valueerror(self):
MULTILINESTRING = MultiLineString([((0, 0), (1, 1)),
((-1, 0), (1, 0))])
with self.assertRaises(ValueError):
Centerline(MULTILINESTRING)
def test__linestring__raises_valueerror(self):
LINESTRING = LineString([(0, 0), (0.8, 0.8), (1.8, 0.95), (2.6, 0.5)])
with self.assertRaises(ValueError):
Centerline(LINESTRING)
def test__multipoint__raises_valueerror(self):
MULTIPOINT = MultiPoint([Point(0, 0), Point(1, 1)])
with self.assertRaises(ValueError):
Centerline(MULTIPOINT)
def test__point__raises_valueerror(self):
POINT = Point(0, 0)
with self.assertRaises(ValueError):
Centerline(POINT)
def test__polygon__returns_multilinestring(self):
POLYGON = Polygon([[0, 0], [0, 4], [4, 4], [4, 0]])
centerline = Centerline(POLYGON)
self.assertIsInstance(centerline, MultiLineString)
def setUpClass(cls):
EXTERIOR = [(0, 0), (0, 2), (2, 2), (2, 0), (0, 0)]
INTERIOR = [(1, 0), (0.5, 0.5), (1, 1), (1.5, 0.5), (1, 0)][::-1]
cls.POLYGON = Polygon(EXTERIOR, [INTERIOR])
cls.CENTERLINE = Centerline(cls.POLYGON)
def setUpClass(cls):
cls.POLYGON = Polygon([[0, 0], [0, 4], [4, 4], [4, 0]])
cls.CENTERLINE = Centerline(cls.POLYGON)