	@Test
	public void testCenterCalculation2() {

		List<GeoLocation> locations = new ArrayList<>();
		locations.add(new GeoLocation(121.612016711363d, 32));
		locations.add(new GeoLocation(121.849004871905, 31));
		GeoLocation centralLocation = GeoLocationUtils.centralLocation(locations);
		assertEquals(121.73, centralLocation.getLatitude(), 0.001);
		assertEquals(31.5, centralLocation.getLongitude(), 0.1);
	}