Class ENUCoordinate

java.lang.Object

org.episteme.natural.earth.coordinates.ENUCoordinate

All Implemented Interfaces:

Serializable, GeometricObject<EarthCoordinate>, Positioned<EarthCoordinate>, EarthCoordinate

public final class ENUCoordinate
extends Object
implements EarthCoordinate, Serializable

East-North-Up (ENU) topocentric coordinate system. Represents coordinates relative to a local tangent plane at a reference point. Useful for local navigation, radar, and site-specific scientific measurements.

Since:

1.0

Author:

Silvere Martin-Michiellot, Gemini AI (Google DeepMind)

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
ENUCoordinate(Real east, Real north, Real up, GeodeticCoordinate referencePoint)

Method Summary

Modifier and Type	Method	Description
int	ambientDimension()	Returns the dimension of the ambient space containing this object.
String	description()	Returns a human-readable description of this geometric object.
int	dimension()	Returns the intrinsic dimension of this geometric object.
static ENUCoordinate	fromECEF(ECEFCoordinate point, GeodeticCoordinate reference)	Converts ECEF to ENU relative to a reference point.
String	getCoordinateSystem()	Returns the coordinate system name (e.g., "WGS84", "UTM", "MGRS").
Quantity<Length>	getEast()
ReferenceEllipsoid	getEllipsoid()	Returns the reference ellipsoid used by this coordinate.
Quantity<Length>	getNorth()
GeodeticCoordinate	getReferencePoint()
Quantity<Length>	getUp()
ECEFCoordinate	toECEF()	Converts this ENU coordinate back to ECEF.
GeodeticCoordinate	toGeodetic()	Converts this coordinate to geodetic (lat/lon/height) form.
String	toString()

Methods inherited from class Object

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

Methods inherited from interface EarthCoordinate

distanceTo, getPosition

Constructor Details

ENUCoordinate

public ENUCoordinate(Real east,
 Real north,
 Real up,
 GeodeticCoordinate referencePoint)

Method Details

getEast

public Quantity<Length> getEast()

getNorth

public Quantity<Length> getNorth()

getUp

public Quantity<Length> getUp()

getReferencePoint

public GeodeticCoordinate getReferencePoint()

getCoordinateSystem

public String getCoordinateSystem()

Description copied from interface: EarthCoordinate

Returns the coordinate system name (e.g., "WGS84", "UTM", "MGRS").

Specified by:

getCoordinateSystem in interface EarthCoordinate

Returns:

the coordinate system identifier

getEllipsoid

public ReferenceEllipsoid getEllipsoid()

Description copied from interface: EarthCoordinate

Returns the reference ellipsoid used by this coordinate.

Specified by:

getEllipsoid in interface EarthCoordinate

Returns:

the ellipsoid model

toGeodetic

public GeodeticCoordinate toGeodetic()

Description copied from interface: EarthCoordinate

Converts this coordinate to geodetic (lat/lon/height) form.

Specified by:

toGeodetic in interface EarthCoordinate

Returns:

the geodetic representation

fromECEF

public static ENUCoordinate fromECEF(ECEFCoordinate point,
 GeodeticCoordinate reference)

Converts ECEF to ENU relative to a reference point.

toECEF

public ECEFCoordinate toECEF()

Converts this ENU coordinate back to ECEF.

Specified by:

toECEF in interface EarthCoordinate

Returns:

the ECEF representation

dimension

public int dimension()

Description copied from interface: GeometricObject

Returns the intrinsic dimension of this geometric object.

Examples:

• Point: 0
• Line/Segment: 1
• Plane/Surface: 2
• Volume: 3

Specified by:

dimension in interface EarthCoordinate

Specified by:

dimension in interface GeometricObject<EarthCoordinate>

Returns:

the dimension

ambientDimension

public int ambientDimension()

Description copied from interface: GeometricObject

Returns the dimension of the ambient space containing this object.

For example, a 2D plane in 3D space has dimension=2 but ambientDimension=3.

Specified by:

ambientDimension in interface EarthCoordinate

Specified by:

ambientDimension in interface GeometricObject<EarthCoordinate>

Returns:

the ambient space dimension

description

public String description()

Description copied from interface: GeometricObject

Returns a human-readable description of this geometric object.

Specified by:

description in interface EarthCoordinate

Specified by:

description in interface GeometricObject<EarthCoordinate>

Returns:

description string

toString

public String toString()

Overrides:

toString in class Object