@Test
public void testKnownAzimuthE() {
LatLon begin = LatLon.fromDegrees(-12.0, 87.0);
LatLon end = LatLon.fromDegrees(53.0902505, -67.1064558);
double azimuth = LatLon.greatCircleAzimuth(begin, end).degrees;
assertEquals("Known Azimuth E", -21.38356223882703, azimuth, THRESHOLD);
}
@Test
public void testTrivialEquivalentPointsB() {
LatLon begin = LatLon.fromDegrees(0.0, -180.0);
LatLon end = LatLon.fromDegrees(0.0, 180.0);
double distance = LatLon.greatCircleDistance(begin, end).degrees;
assertEquals("Trivial equivalent points B", 0.0, distance, THRESHOLD);
}
@Test
public void testKnownAzimuthC() {
LatLon begin = LatLon.fromDegrees(-12.0, 87.0);
LatLon end = LatLon.fromDegrees(-12.0000001, 86.9999999);
double azimuth = LatLon.greatCircleAzimuth(begin, end).degrees;
assertEquals("Known Azimuth C", -135.6329170237546, azimuth, THRESHOLD);
}
@Test
public void testKnownAzimuthD() {
LatLon begin = LatLon.fromDegrees(-12.0, 87.0);
LatLon end = LatLon.fromDegrees(11.9999999, -93.0000001);
double azimuth = LatLon.greatCircleAzimuth(begin, end).degrees;
assertEquals("Known Azimuth D", 135.6329170162944, azimuth, THRESHOLD);
}
@Test
public void testKnownAzimuthB() {
LatLon begin = LatLon.fromDegrees(53.0902505, 112.8935442);
LatLon end = LatLon.fromDegrees(-53.0902505, -67.1064558);
double azimuth = LatLon.greatCircleAzimuth(begin, end).degrees;
assertEquals("Known Azimuth B", -90.0, azimuth, THRESHOLD);
}
@Test
public void testTrivialSouth() {
LatLon begin = LatLon.fromDegrees(0.0, 0.0);
LatLon end = LatLon.fromDegrees(-90.0, 0.0);
double azimuth = LatLon.greatCircleAzimuth(begin, end).degrees;
assertEquals("Trivial South greatCircleAzimuth", 180.0, azimuth, THRESHOLD);
}
@Test
public void testProblemPointsA() {
LatLon begin = LatLon.fromDegrees(36.0, -118.0);
LatLon end = LatLon.fromDegrees(36.0, -117.0);
double distance = LatLon.greatCircleDistance(begin, end).degrees;
assertEquals("Problem points A", 0.8090134466773318, distance, THRESHOLD);
}
@Test
public void testTrivialEquivalentPointsC() {
LatLon begin = LatLon.fromDegrees(0.0, 0.0);
LatLon end = LatLon.fromDegrees(0.0, 360.0);
double distance = LatLon.rhumbDistance(begin, end).degrees;
assertEquals("Trivial equivalent points C", 0.0, distance, THRESHOLD);
}
@Test
public void testTrivialEquivalentPointsC() {
LatLon begin = LatLon.fromDegrees(90.0, 0.0);
LatLon end = LatLon.fromDegrees(90.0, 0.0);
double azimuth = LatLon.rhumbAzimuth(begin, end).degrees;
assertEquals("Trivial equivalent points C", 0.0, azimuth, THRESHOLD);
}
private Info[] buildSurfaceShapes() {
LatLon position = new LatLon(Angle.fromDegrees(38), Angle.fromDegrees(-105));
ArrayList<LatLon> surfaceLinePositions = new ArrayList<LatLon>();
// surfaceLinePositions.add(LatLon.fromDegrees(37.8484, -119.9754));
// surfaceLinePositions.add(LatLon.fromDegrees(38.3540, -119.1526));
// surfaceLinePositions.add(new LatLon(Angle.fromDegrees(0),
// Angle.fromDegrees(-150)));
// surfaceLinePositions.add(new LatLon(Angle.fromDegrees(60),
// Angle.fromDegrees(0)));
surfaceLinePositions.add(position);
surfaceLinePositions.add(LatLon.fromDegrees(39, -104));
surfaceLinePositions.add(LatLon.fromDegrees(39, -105));
surfaceLinePositions.add(position);
return new Info[] {
new Info("Circle", new SurfaceCircle(position, 100e3)),
new Info("Ellipse", new SurfaceEllipse(position, 100e3, 90e3, Angle.ZERO)),
new Info("Square", new SurfaceSquare(position, 100e3)),
new Info("Quad", new SurfaceQuad(position, 100e3, 60e3, Angle.ZERO)),
new Info("Sector", new SurfaceSector(Sector.fromDegrees(38, 40, -105, -103))),
new Info("Polygon", new SurfacePolygon(surfaceLinePositions)),
};
}
@Test
public void testKnownAzimuthA() {
LatLon begin = LatLon.fromDegrees(-90.0, -180.0);
LatLon end = LatLon.fromDegrees(90.0, 180.0);
double azimuth = LatLon.rhumbAzimuth(begin, end).degrees;
assertEquals("Known Azimuth A", 0.0, azimuth, THRESHOLD);
}
@Test
public void testKnownAzimuthB() {
LatLon begin = LatLon.fromDegrees(53.0902505, 112.8935442);
LatLon end = LatLon.fromDegrees(-53.0902505, -67.1064558);
double azimuth = LatLon.rhumbAzimuth(begin, end).degrees;
assertEquals("Known Azimuth B", -124.94048502315054, azimuth, THRESHOLD);
}
@Test
public void testKnownDistanceCloseTo180() {
LatLon begin = LatLon.fromDegrees(-12.0, 87.0);
LatLon end = LatLon.fromDegrees(11.9999999, -93.0000001);
double distance = LatLon.greatCircleDistance(begin, end).degrees;
assertEquals("Known spherical distance (close to 180)", 180.0, distance, THRESHOLD);
}
@Test
public void testEquivalentPoints() {
LatLon begin = LatLon.fromDegrees(53.0902505, 112.8935442);
LatLon end = LatLon.fromDegrees(53.0902505, 112.8935442);
double azimuth = LatLon.rhumbAzimuth(begin, end).degrees;
assertEquals("Equivalent points", 0.0, azimuth, THRESHOLD);
}
@Test
public void testTrivialWest() {
LatLon begin = LatLon.fromDegrees(0.0, 0.0);
LatLon end = LatLon.fromDegrees(0.0, -90.0);
double azimuth = LatLon.rhumbAzimuth(begin, end).degrees;
assertEquals("Trivial West rhumbAzimuth", -90.0, azimuth, THRESHOLD);
}
@Test
public void testEquivalentPoints() {
LatLon begin = LatLon.fromDegrees(53.0902505, 112.8935442);
LatLon end = LatLon.fromDegrees(53.0902505, 112.8935442);
double distance = LatLon.greatCircleDistance(begin, end).degrees;
assertEquals("Equivalent points", 0.0, distance, THRESHOLD);
}
@Test
public void testProblemPointsA() {
LatLon begin = LatLon.fromDegrees(36.0, -118.0);
LatLon end = LatLon.fromDegrees(36.0, -117.0);
double distance = LatLon.rhumbDistance(begin, end).degrees;
assertEquals("Problem points A", 0.8090169943749475, distance, THRESHOLD);
}
@Test
public void testKnownAzimuthC() {
LatLon begin = LatLon.fromDegrees(-12.0, 87.0);
LatLon end = LatLon.fromDegrees(-12.0000001, 86.9999999);
double azimuth = LatLon.rhumbAzimuth(begin, end).degrees;
assertEquals("Known Azimuth C", -135.63291443992495, azimuth, THRESHOLD);
}
@Test
public void testKnownAzimuthD() {
LatLon begin = LatLon.fromDegrees(-12.0, 87.0);
LatLon end = LatLon.fromDegrees(11.9999999, -93.0000001);
double azimuth = LatLon.rhumbAzimuth(begin, end).degrees;
assertEquals("Known Azimuth D", 82.34987931207793, azimuth, THRESHOLD);
}
@Test
public void testKnownDistance() {
LatLon begin = LatLon.fromDegrees(90.0, 45.0);
LatLon end = LatLon.fromDegrees(36.0, 180.0);
double distance = LatLon.greatCircleDistance(begin, end).degrees;
assertEquals("Known spherical distance", 54.0, distance, THRESHOLD);
}
@Test
public void testAntipodalPointsA() {
LatLon begin = LatLon.fromDegrees(53.0902505, 112.8935442);
LatLon end = LatLon.fromDegrees(-53.0902505, -67.1064558);
double distance = LatLon.greatCircleDistance(begin, end).degrees;
assertEquals("Antipodal points A", 180.0, distance, THRESHOLD);
}
@Test
public void testAntipodalPointsB() {
LatLon begin = LatLon.fromDegrees(-12.0, 87.0);
LatLon end = LatLon.fromDegrees(12.0, -93.0);
double distance = LatLon.greatCircleDistance(begin, end).degrees;
assertEquals("Antipodal points B", 180.0, distance, THRESHOLD);
}
@Test
public void testTrivialAntipodalPointsC() {
LatLon begin = LatLon.fromDegrees(-90.0, -180.0);
LatLon end = LatLon.fromDegrees(90.0, 180.0);
double distance = LatLon.greatCircleDistance(begin, end).degrees;
assertEquals("Trivial antipodal points C", 180.0, distance, THRESHOLD);
}
@Test
public void testKnownAzimuthE() {
LatLon begin = LatLon.fromDegrees(-12.0, 87.0);
LatLon end = LatLon.fromDegrees(53.0902505, -67.1064558);
double azimuth = LatLon.rhumbAzimuth(begin, end).degrees;
assertEquals("Known Azimuth E", -64.05846977747626, azimuth, THRESHOLD);
}
@Test
public void testKnownDistance() {
LatLon begin = LatLon.fromDegrees(90.0, 45.0);
LatLon end = LatLon.fromDegrees(36.0, 180.0);
double distance = LatLon.rhumbDistance(begin, end).degrees;
assertEquals(
"Known spherical distance", 54.11143196539475, distance, 1e-5); // Custom threshold
}
@Test
public void testKnownDistanceCloseToZero() {
LatLon begin = LatLon.fromDegrees(-12.0, 87.0);
LatLon end = LatLon.fromDegrees(-12.0000001, 86.9999999);
double distance = LatLon.rhumbDistance(begin, end).degrees;
assertEquals(
"Known spherical distance (close to zero)", 1.398846933590201e-7, distance, THRESHOLD);
}
@Test
public void testKnownAzimuthC() {
LatLon begin = LatLon.fromDegrees(-32.0000, 116.0000);
LatLon end = LatLon.fromDegrees(23.0000, 122.0000);
Angle theta =
LatLon.ellipsoidalForwardAzimuth(
begin, end, globe.getEquatorialRadius(), globe.getPolarRadius());
assertEquals("Known ellipsoidal Azimuth C", 6.75777, theta.degrees, TOLERANCE);
}
@Test
public void testKnownAzimuthA() {
LatLon begin = LatLon.fromDegrees(30.000000, -102.000000);
LatLon end = LatLon.fromDegrees(34.000000, -97.000000);
Angle theta =
LatLon.ellipsoidalForwardAzimuth(
begin, end, globe.getEquatorialRadius(), globe.getPolarRadius());
assertEquals("Known ellipsoidal Azimuth A", 45.50583, theta.degrees, TOLERANCE);
}
@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 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);
}