def distance(self, coord1, coord2):
"""Compute the distance using the great circle."""
sinsin_lat = coord1.lat.sin() * coord2.lat.sin()
coscos_lat = coord1.lat.cos() * coord2.lat.cos()
cos_deltalong = coord1.delta_long(coord2).cos()
angle = AngleDeg().acos(sinsin_lat + coscos_lat * cos_deltalong)
return angle.dist_from_radius(EARTH_RADIUS)
def distance(self, coord1, coord2):
"""Compute the distance using the great circle."""
sinsin_lat = coord1.lat.sin() * coord2.lat.sin()
coscos_lat = coord1.lat.cos() * coord2.lat.cos()
cos_deltalong = coord1.delta_long(coord2).cos()
angle = AngleDeg().acos(sinsin_lat + coscos_lat * cos_deltalong)
return angle.dist_from_radius(EARTH_RADIUS)
def test_distfromradius(self):
"""For a radius convert the angle to a distance."""
test_angle = AngleDeg(10.0)
dist = test_angle.dist_from_radius(100.0)
self.assertAlmostEqual(dist, 17.4532, delta=4)
