def _create_polygon(coordinates):
"""Create a polygon from the provided coordinates."""
if coordinates:
if len(coordinates) % 2 != 0:
# Not even number of coordinates - chop last entry.
coordinates = coordinates[0:len(coordinates) - 1]
points = []
for i in range(0, len(coordinates), 2):
points.append(Point(coordinates[i], coordinates[i + 1]))
return Polygon(points)
return None
def test_distance_to_polygon(self):
"""Test calculating distance to point."""
home_coordinates = [-31.0, 150.0]
mock_polygon = Polygon([
Point(-30.0, 151.0),
Point(-30.0, 151.5),
Point(-30.5, 151.5),
Point(-30.5, 151.0),
Point(-30.0, 151.0)
])
distance = GeoRssDistanceHelper.\
distance_to_geometry(home_coordinates, mock_polygon)
self.assertAlmostEqual(distance, 110.6, 1)
def test_extract_coordinates_from_polygon(self):
"""Test extracting coordinates from polygon."""
mock_polygon = Polygon([
Point(-30.0, 151.0),
Point(-30.0, 151.5),
Point(-30.5, 151.5),
Point(-30.5, 151.0),
Point(-30.0, 151.0)
])
latitude, longitude = GeoRssDistanceHelper.\
extract_coordinates(mock_polygon)
self.assertAlmostEqual(latitude, -30.2, 1)
self.assertAlmostEqual(longitude, 151.2, 1)
def test_polygon(self):
"""Test polygon."""
polygon = Polygon([
Point(-30.1, 150.1),
Point(-30.2, 150.2),
Point(-30.4, 150.4),
Point(-30.8, 150.8),
Point(-30.1, 150.1)
])
assert len(polygon.points) == 5
assert polygon.centroid.latitude == -30.32
assert polygon.centroid.longitude == 150.32
assert repr(polygon) == "<Polygon(centroid=" \
"<Point(latitude=-30.32, longitude=150.32)>)>"