Class PolyconicCoordinate

java.lang.Object

org.episteme.natural.earth.coordinates.PolyconicCoordinate

All Implemented Interfaces:

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

public class PolyconicCoordinate
extends Object
implements EarthCoordinate, Serializable

Represents a coordinate in the American Polyconic projection. Historically used by the USGS for topographic maps. It is neither conformal nor equal-area.

Since:

1.0

Author:

Silvere Martin-Michiellot, Gemini AI (Google DeepMind)

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final record	PolyconicCoordinate.PolyconicParameters

Constructor Summary

Constructors

Constructor	Description
PolyconicCoordinate(Real easting, Real northing, ReferenceEllipsoid ellipsoid, PolyconicCoordinate.PolyconicParameters params)

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 PolyconicCoordinate	fromGeodetic(GeodeticCoordinate geodetic, PolyconicCoordinate.PolyconicParameters params)
String	getCoordinateSystem()	Returns the coordinate system name (e.g., "WGS84", "UTM", "MGRS").
Quantity<Length>	getEasting()
ReferenceEllipsoid	getEllipsoid()	Returns the reference ellipsoid used by this coordinate.
Quantity<Length>	getNorthing()
ECEFCoordinate	toECEF()	Converts this coordinate to ECEF Cartesian form.
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

PolyconicCoordinate

public PolyconicCoordinate(Real easting,
 Real northing,
 ReferenceEllipsoid ellipsoid,
 PolyconicCoordinate.PolyconicParameters params)

Method Details

getEasting

public Quantity<Length> getEasting()

getNorthing

public Quantity<Length> getNorthing()

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

toECEF

public ECEFCoordinate toECEF()

Description copied from interface: EarthCoordinate

Converts this coordinate to ECEF Cartesian form.

Specified by:

toECEF in interface EarthCoordinate

Returns:

the ECEF representation

fromGeodetic

public static PolyconicCoordinate fromGeodetic(GeodeticCoordinate geodetic,
 PolyconicCoordinate.PolyconicParameters params)

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

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