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)>)>"
def test_distance_to_point(self):
"""Test calculating distance to point."""
home_coordinates = [-31.0, 150.0]
mock_point = Point(-30.0, 151.0)
distance = GeoRssDistanceHelper.\
distance_to_geometry(home_coordinates, mock_point)
self.assertAlmostEqual(distance, 146.8, 1)
def test_extract_coordinates_from_point(self):
"""Test extracting coordinates from point."""
mock_point = Point(-30.0, 151.0)
latitude, longitude = GeoRssDistanceHelper.\
extract_coordinates(mock_point)
assert latitude == -30.0
assert longitude == 151.0
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 geometry(self) -> Optional[Geometry]:
"""Return the geometry of this feed item."""
# <georss:point>-0.5 119.8</georss:point>
point = self._attribute([XML_TAG_GEORSS_POINT])
if point:
return Point(point[0], point[1])
# GML
where = self._attribute([XML_TAG_GEORSS_WHERE])
if where:
# Point:
# <georss:where>
# <gml:Point>
# <gml:pos>44.11 -66.23</gml:pos>
# </gml:Point>
# </georss:where>
pos = self._attribute_in_structure(
where, [XML_TAG_GML_POINT, XML_TAG_GML_POS])
if pos:
return Point(pos[0], pos[1])
# Polygon:
# <georss:where>
# <gml:Polygon>
# <gml:exterior>
# <gml:LinearRing>
# <gml:posList>
# -71.106216 42.366661
# -71.105576 42.367104
# -71.104378 42.367134
# -71.103729 42.366249
# -71.098793 42.363331
# -71.101028 42.362541
# -71.106865 42.366123
# -71.106216 42.366661
# </gml:posList>
# </gml:LinearRing>
# </gml:exterior>
# </gml:Polygon>
# </georss:where>
pos_list = self._attribute_in_structure(where, [
XML_TAG_GML_POLYGON, XML_TAG_GML_EXTERIOR,
XML_TAG_GML_LINEAR_RING, XML_TAG_GML_POS_LIST
])
if pos_list:
return self._create_polygon(pos_list)
# <geo:Point xmlns:geo="http://www.w3.org/2003/01/geo/wgs84_pos#">
# <geo:lat>38.3728</geo:lat>
# <geo:long>15.7213</geo:long>
# </geo:Point>
point = self._attribute([XML_TAG_GEO_POINT])
if point:
lat = point.get(XML_TAG_GEO_LAT)
long = point.get(XML_TAG_GEO_LONG)
if long and lat:
return Point(lat, long)
# <geo:long>119.948006</geo:long>
# <geo:lat>-23.126413</geo:lat>
lat = self._attribute([XML_TAG_GEO_LAT])
long = self._attribute([XML_TAG_GEO_LONG])
if long and lat:
return Point(lat, long)
# <georss:polygon>
# -34.937663524 148.597260613
# -34.9377026399999 148.597169138
# -34.9377002169999 148.59708737
# -34.9376945989999 148.59705595
# -34.9376863529999 148.596955098
# -34.937663524 148.597260613
# </georss:polygon>
polygon = self._attribute([XML_TAG_GEORSS_POLYGON])
if polygon:
# For now, only supporting the first polygon.
if isinstance(polygon, list) and isinstance(polygon[0], list):
polygon = polygon[0]
return self._create_polygon(polygon)
# None of the above
return None
def test_point(self):
"""Test point."""
point = Point(-37.1234, 149.2345)
assert point.latitude == -37.1234
assert point.longitude == 149.2345
assert repr(point) == "<Point(latitude=-37.1234, longitude=149.2345)>"