@Test
public void testKnownDistanceD() {
LatLon begin = LatLon.fromDegrees(51.4898, 0.0539);
LatLon end = LatLon.fromDegrees(42.3232, -71.0974);
double distance =
LatLon.ellipsoidalDistance(
begin, end, globe.getEquatorialRadius(), globe.getPolarRadius());
assertEquals("Known ellipsoidal distance D", 5296396.967, distance, TOLERANCE);
}
@Test
public void testKnownDistanceB() {
LatLon begin = LatLon.fromDegrees(9.2118, -79.5180);
LatLon end = LatLon.fromDegrees(48.4216, -122.3352);
double distance =
LatLon.ellipsoidalDistance(
begin, end, globe.getEquatorialRadius(), globe.getPolarRadius());
assertEquals("Known ellipsoidal distance B", 5900926.896, distance, TOLERANCE);
}
@Test
public void testKnownDistanceC() {
LatLon begin = LatLon.fromDegrees(-31.9236, 116.1231);
LatLon end = LatLon.fromDegrees(23.6937, 121.9831);
double distance =
LatLon.ellipsoidalDistance(
begin, end, globe.getEquatorialRadius(), globe.getPolarRadius());
assertEquals("Known ellipsoidal distance C", 6186281.864, distance, TOLERANCE);
}
@Test
public void testKnownDistanceA() {
LatLon begin = LatLon.fromDegrees(30.608879, -102.118357);
LatLon end = LatLon.fromDegrees(34.413929, -97.022765);
double distance =
LatLon.ellipsoidalDistance(
begin, end, globe.getEquatorialRadius(), globe.getPolarRadius());
assertEquals("Known ellipsoidal distance A", 638027.750, distance, TOLERANCE);
}
public void testAntipodal() {
// See
// http://forum.worldwindcentral.com/showthread.php?45479-Potential-bug-in-ellipsoidalDistance
LatLon begin = LatLon.fromDegrees(-12.720360910785889, 57.91244852568739);
LatLon end = LatLon.fromDegrees(12.186856600402097, -121.90490684689753);
double distance =
LatLon.ellipsoidalDistance(
begin, end, globe.getEquatorialRadius(), globe.getPolarRadius());
assertEquals("Antipodal", 1.9937004080007866E7, distance, TOLERANCE);
}