geometry
Class EarthCenterCoordinate

java.lang.Object
  geometry.Coordinate
      geometry.EarthCenterCoordinate

public class EarthCenterCoordinate
extends Coordinate

    This class defines the coordinate with its origin located at
     center of the earth. The z axis points to the North Pole
     and the y axis points to longitude 0 degree latitude 0 degree.

Field Summary

static double

REarth Radius of the earth [cm]

Constructor Summary

EarthCenterCoordinate()
Constructor.

Method Summary

double	getLatitude(J3Vector r) Calculate latitude in degree.
double	getLongitude(J3Vector r) Calculate longitude in degree.
J3Vector	getPointVectorFromLongitudeLatitude(double height, double longitude, double latitude) Get the point vector in this earth-center coordinate for a given longitude [deg] and latitude [deg].
J3Vector	getSurfacePoint(double longitude, double latitude) Get the point vector on the earth surface.
static boolean	IsInsideEarth(J3Vector r) Check if the point is inside the earth.

Methods inherited from class geometry.Coordinate

getAzimuthInPolar, getEx, getEy, getEz, getLengthInPolar, getOrigin, getPointVectorFromPolarCoordinate, getZenithInPolar, rotate, setOrigin, transformThisCoordinate, transformUnitVectorToThisCoordinate, transformVectorToThisCoordinate

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

REarth

public static final double REarth

Radius of the earth [cm]

See Also:

Constant Field Values

Constructor Detail

EarthCenterCoordinate

public EarthCenterCoordinate()

Constructor.

Method Detail

getLongitude

public double getLongitude(J3Vector r)

Calculate longitude in degree. West : Positive East : Negative

getLatitude

public double getLatitude(J3Vector r)

Calculate latitude in degree. North : Positive South : Negative

getPointVectorFromLongitudeLatitude

public J3Vector getPointVectorFromLongitudeLatitude(double height,
                                                    double longitude,
                                                    double latitude)

Get the point vector in this earth-center coordinate for a given longitude [deg] and latitude [deg].

        double height :  height [cm] from the earth center
        double longitude : longitude [deg]
        double latitude :  latitude [deg]
        

Returns J3Vector defined in the EarthCenterCoordinate

getSurfacePoint

public J3Vector getSurfacePoint(double longitude,
                                double latitude)

Get the point vector on the earth surface. Longitude [deg] and latitude [deg] are given.

IsInsideEarth

public static boolean IsInsideEarth(J3Vector r)

Check if the point is inside the earth. If it's inside, returns true.