org.jscience.geography.coordinates
Class Altitude

java.lang.Object
  org.jscience.geography.coordinates.Coordinates<VerticalCRS<?>>
      org.jscience.geography.coordinates.Altitude

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.lang.Comparable<Measurable<Length>>, Measurable<Length>, Immutable, Realtime, ValueType, XMLSerializable, org.opengis.spatialschema.geometry.DirectPosition, org.opengis.spatialschema.geometry.geometry.Position

public final class Altitude
extends Coordinates<VerticalCRS<?>>
implements Measurable<Length>

This class represents the Mean-Sea-Level vertical altitude (MSL).

Note: The current implementation approximates the MSL altitude to the WGS-86 Ellipsoid Height. Future implementations will use lookup tables in order to correct for regional discrepencies.

Version:

3.0, February 26, 2006

Author:

Jean-Marie Dautelle

See Also:

Serialized Form

Field Summary

static VerticalCRS<Altitude>

CRS Holds the coordinate reference system for all instances of this class.

Method Summary

int	compareTo(Measurable<Length> measure)
Altitude	copy() Returns a copy of these coordinates allocated by the calling thread (possibly on the stack).
double	doubleValue(Unit<Length> unit) Returns the value of this measurable stated in the specified unit as a double.
VerticalCRS<?>	getCoordinateReferenceSystem() Returns the reference system for this coordinates.
int	getDimension() OpenGIS® - The length of coordinate sequence (the number of entries).
double	getOrdinate(int dimension) OpenGIS® - Returns the ordinate at the specified dimension.
long	longValue(Unit<Length> unit) Returns the estimated integral value of this measurable stated in the specified unit as a long.
static Altitude	valueOf(double value, Unit<Length> unit) Returns the vertical position corresponding to the specified coordinates.

Methods inherited from class org.jscience.geography.coordinates.Coordinates

clone, getCoordinates, getPosition, setOrdinate, toString, toText

Methods inherited from class java.lang.Object

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

Field Detail

CRS

public static final VerticalCRS<Altitude> CRS

Holds the coordinate reference system for all instances of this class.

Method Detail

valueOf

public static Altitude valueOf(double value,
                               Unit<Length> unit)

Returns the vertical position corresponding to the specified coordinates.

Parameters:

value - the mean sea level altitude stated in the specified unit.

unit - the length unit in which the altitude is stated.

Returns:

the corresponding vertical position.

getCoordinateReferenceSystem

public VerticalCRS<?> getCoordinateReferenceSystem()

Description copied from class: Coordinates

Returns the reference system for this coordinates.

Specified by:

getCoordinateReferenceSystem in interface org.opengis.spatialschema.geometry.DirectPosition

Specified by:

getCoordinateReferenceSystem in class Coordinates<VerticalCRS<?>>

Returns:

the associated coordinate reference system.

getDimension

public int getDimension()

Description copied from class: Coordinates

OpenGIS® - The length of coordinate sequence (the number of entries). This is determined by the coordinate reference system.

Specified by:

getDimension in interface org.opengis.spatialschema.geometry.DirectPosition

Specified by:

getDimension in class Coordinates<VerticalCRS<?>>

Returns:

the dimensionality of this position.

getOrdinate

public double getOrdinate(int dimension)
                   throws java.lang.IndexOutOfBoundsException

Description copied from class: Coordinates

OpenGIS® - Returns the ordinate at the specified dimension.

Specified by:

getOrdinate in interface org.opengis.spatialschema.geometry.DirectPosition

Specified by:

getOrdinate in class Coordinates<VerticalCRS<?>>

Parameters:

dimension - The dimension in the range 0 to dimension-1.

Returns:

The coordinate at the specified dimension.

Throws:

java.lang.IndexOutOfBoundsException - if the specified dimension is out of bounds.

doubleValue

public final double doubleValue(Unit<Length> unit)

Description copied from interface: Measurable

Returns the value of this measurable stated in the specified unit as a double. If the measurable has too great a magnitude to be represented as a double, it will be converted to Double.NEGATIVE_INFINITY or Double.POSITIVE_INFINITY as appropriate.

Specified by:

doubleValue in interface Measurable<Length>

Parameters:

unit - the unit in which this measurable value is stated.

Returns:

the numeric value after conversion to type double.

longValue

public final long longValue(Unit<Length> unit)

Description copied from interface: Measurable

Returns the estimated integral value of this measurable stated in the specified unit as a long.

Note: This method differs from the Number.longValue() in the sense that the closest integer value is returned and an ArithmeticException is raised instead of a bit truncation in case of overflow (safety critical).

Specified by:

longValue in interface Measurable<Length>

Parameters:

unit - the unit in which the measurable value is stated.

Returns:

the numeric value after conversion to type long.

compareTo

public int compareTo(Measurable<Length> measure)

Specified by:

compareTo in interface java.lang.Comparable<Measurable<Length>>

copy

public Altitude copy()

Description copied from class: Coordinates

Returns a copy of these coordinates allocated by the calling thread (possibly on the stack).

Specified by:

copy in interface ValueType

Specified by:

copy in class Coordinates<VerticalCRS<?>>

Returns:

an identical and independant copy of these coordinates .