@Test
public void testMetersToDegreesLon() {

    LOG.info("testMetersToDegreesLon()");
    assertEquals(0, compare(0, metersToDegreesLonAtLat(0, 0)));
    assertEquals(0, compare(0.5, metersToDegreesLonAtLat(METERS_PER_DEGREE_LON_EQUATOR / 2, 0)));
    assertEquals(0, compare(1, metersToDegreesLonAtLat(METERS_PER_DEGREE_LON_EQUATOR, 0)));
    assertEquals(0, compare(180, metersToDegreesLonAtLat(METERS_PER_DEGREE_LON_EQUATOR * 180, 0)));
    assertEquals(0, compare(-180, metersToDegreesLonAtLat(METERS_PER_DEGREE_LON_EQUATOR * -180, 0)));
    assertEquals(2.0, metersToDegreesLonAtLat(METERS_PER_DEGREE_LON_EQUATOR, 60), DELTA);
    assertEquals(2.0, metersToDegreesLonAtLat(METERS_PER_DEGREE_LON_EQUATOR, -60), DELTA);
}