/** @methodtype set */
public SphericCoordinate setLongitude(double longitude) {
// precondition
assertIsValidLongitude(longitude);
SphericCoordinate result = getInstance(this.latitude, longitude, this.radius);
// postcondition
assertClassInvariants();
return result;
}
/** @methodtype set */
public SphericCoordinate setRadius(double radiusInKm) {
// precondition
assertIsValidRadius(radiusInKm);
SphericCoordinate result = getInstance(this.latitude, this.longitude, radiusInKm);
// postcondition
assertClassInvariants();
return result;
}
/** @methodtype constructor */
private SphericCoordinate(double latitude, double longitude, double radiusInKm) {
// preconditions
assertIsValidLatitude(latitude);
assertIsValidLongitude(longitude);
assertIsValidRadius(radiusInKm);
this.latitude = latitude;
this.longitude = longitude;
this.radius = radiusInKm;
// postconditions
assertClassInvariants();
}
/**
* @methodtype conversion
* @param Coordinate to convert
* @return SphericCoordinate
*/
private static SphericCoordinate convertToSpheric(Coordinate other) {
if (SphericCoordinate.class.isInstance(other)) {
return (SphericCoordinate) other;
} else if (CartesianCoordinate.class.isInstance(other)) {
CartesianCoordinate carOther = (CartesianCoordinate) other;
double r =
Math.sqrt(
Math.pow(carOther.getX(), 2)
+ Math.pow(carOther.getY(), 2)
+ Math.pow(carOther.getZ(), 2));
double latitude = Math.toDegrees(Math.asin(carOther.getZ() / r));
double longitude = Math.toDegrees(Math.atan2(carOther.getY(), carOther.getX()));
SphericCoordinate toRet = getSphericCoordinate(latitude, longitude, r);
toRet.assertClassInvariants();
return toRet;
} else {
throw new UnsupportedOperationException("Unknown Type of Coordinate");
}
}