org.deegree.model.csct.cs
Class WGS84ConversionInfo

java.lang.Object
  org.deegree.model.csct.cs.WGS84ConversionInfo

All Implemented Interfaces:

Serializable, Cloneable

public class WGS84ConversionInfo
extends Object
implements Cloneable, Serializable

Parameters for a geographic transformation into WGS84. The Bursa Wolf parameters should be applied to geocentric coordinates, where the X axis points towards the Greenwich Prime Meridian, the Y axis points East, and the Z axis points North.

Version:

1.00, $Revision: 6259 $, $Date: 2007-03-20 10:15:15 +0100 (Di, 20 Mär 2007) $

Author:

OpenGIS (www.opengis.org), Martin Desruisseaux, last edited by: $Author: bezema $

See Also:

"org.opengis.cs.CS_WGS84ConversionInfo", Serialized Form

Field Summary

String	areaOfUse Human readable text describing intended region of transformation.
double	dx Bursa Wolf shift in meters.
double	dy Bursa Wolf shift in meters.
double	dz Bursa Wolf shift in meters.
double	ex Bursa Wolf rotation in arc seconds.
double	ey Bursa Wolf rotation in arc seconds.
double	ez Bursa Wolf rotation in arc seconds.
double	ppm Bursa Wolf scaling in parts per million.

Constructor Summary

WGS84ConversionInfo()
Construct a conversion info with all parameters set to 0.

Method Summary

Object	clone() Returns a copy of this object.
boolean	equals(Object object) Compares the specified object with this object for equality.
Matrix	getAffineTransform() Returns an affine maps that can be used to define this Bursa Wolf transformation.
int	hashCode() Returns a hash value for this object.
String	toString() Returns the Well Know Text (WKT) for this object.

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

dx

public double dx

Bursa Wolf shift in meters.

dy

public double dy

Bursa Wolf shift in meters.

dz

public double dz

Bursa Wolf shift in meters.

ex

public double ex

Bursa Wolf rotation in arc seconds.

ey

public double ey

Bursa Wolf rotation in arc seconds.

ez

public double ez

Bursa Wolf rotation in arc seconds.

ppm

public double ppm

Bursa Wolf scaling in parts per million.

areaOfUse

public String areaOfUse

Human readable text describing intended region of transformation.

Constructor Detail

WGS84ConversionInfo

public WGS84ConversionInfo()

Construct a conversion info with all parameters set to 0.

Method Detail

getAffineTransform

public Matrix getAffineTransform()

Returns an affine maps that can be used to define this Bursa Wolf transformation. The formula is as follows:

  S = 1 + ppm/1000000
 
  [ X ]    [     S   -ez*S   +ey*S   dx ]  [ X ]
  [ Y ]  = [ +ez*S       S   -ex*S   dy ]  [ Y ]
  [ Z ]    [ -ey*S   +ex*S       S   dz ]  [ Z ]
  [ 1  ]    [     0       0       0    1 ]  [ 1 ]
 

This affine transform can be applied on geocentric coordinates.

Returns:

an affine maps that can be used to define this Bursa Wolf transformation.

hashCode

public int hashCode()

Returns a hash value for this object. This value need not remain consistent between different implementations of the same class.

Overrides:

hashCode in class Object

Returns:

a hash value for this object. This value need not remain consistent between different implementations of the same class.

clone

public Object clone()

Returns a copy of this object.

Overrides:

clone in class Object

Returns:

a copy of this object.

equals

public boolean equals(Object object)

Compares the specified object with this object for equality.

Overrides:

equals in class Object

Parameters:

object -

Returns:

toString

public String toString()

Returns the Well Know Text (WKT) for this object. The WKT is part of OpenGIS's specification and looks like TOWGS84[dx, dy, dz, ex, ey, ez, ppm].

Overrides:

toString in class Object

Returns:

the Well Know Text (WKT) for this object.