org.cts.op.projection
Class GaussSchreiberTransverseMercator

java.lang.Object
  org.cts.IdentifiableComponent
      org.cts.op.AbstractCoordinateOperation
          org.cts.op.projection.Projection
              org.cts.op.projection.GaussSchreiberTransverseMercator

All Implemented Interfaces:

Identifiable, CoordinateOperation

public class GaussSchreiberTransverseMercator
extends Projection

The Gauss Schreiber Transverse Mercator (GSTMERC).

Author:

Jules Party

Nested Class Summary

Nested classes/interfaces inherited from class org.cts.op.projection.Projection

Projection.Orientation, Projection.Property, Projection.Surface

Field Summary

protected double	c
static Identifier	GSTMERC The Identifier used for all Gauss Schreiber Transverse Mercator projections.
protected double	latc
protected double	lon0
protected double	n1
protected double	n2
protected double	xs
protected double	ys

Fields inherited from class org.cts.op.projection.Projection

DEFAULT_PARAMETERS

Fields inherited from class org.cts.op.AbstractCoordinateOperation

precision

Fields inherited from interface org.cts.Identifiable

DEFAULT, LOCAL, UNKNOWN

Constructor Summary

GaussSchreiberTransverseMercator(Ellipsoid ellipsoid, Map<String,Measure> parameters)
Create a new Gauss Schreiber Transverse Mercator Projection corresponding to the Ellipsoid and the list of parameters given in argument and initialize common parameters lon0 and other parameters useful for the projection.

Method Summary

Projection.Orientation	getOrientation() Return the Orientation of this Projection.
Projection.Property	getProperty() Return the Property of this Projection.
Projection.Surface	getSurface() Return the Surface type of this Projection.
CoordinateOperation	inverse() Creates the inverse operation for Gauss Schreiber Transverse Mercator Projection.
double[]	transform(double[] coord) Transform coord using the Gauss Schreiber Transverse Mercator Projection.

Methods inherited from class org.cts.op.projection.Projection

equals, getAzimuth, getCentralMeridian, getDefaultParameters, getFalseEasting, getFalseNorthing, getLatitudeOfOrigin, getLatitudeOfTrueScale, getRectifiedGridAngle, getScaleFactor, getSemiMajorAxis, getSemiMinorAxis, getStandardParallel1, getStandardParallel2, hashCode, toWKT

Methods inherited from class org.cts.op.AbstractCoordinateOperation

getPrecision

Methods inherited from class org.cts.IdentifiableComponent

addAlias, addRemark, getAliases, getAuthorityKey, getAuthorityName, getCode, getComponent, getIdentifier, getName, getRemarks, getShortName, setIdentifier, setRemarks, setShortName, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.cts.Identifiable

addAlias, addRemark, getAliases, getAuthorityKey, getAuthorityName, getCode, getName, getRemarks, getShortName, setRemarks, setShortName

Field Detail

GSTMERC

public static final Identifier GSTMERC

The Identifier used for all Gauss Schreiber Transverse Mercator projections.

lon0

protected final double lon0

latc

protected final double latc

c

protected final double c

n1

protected final double n1

n2

protected final double n2

xs

protected final double xs

ys

protected final double ys

Constructor Detail

GaussSchreiberTransverseMercator

public GaussSchreiberTransverseMercator(Ellipsoid ellipsoid,
                                        Map<String,Measure> parameters)

Create a new Gauss Schreiber Transverse Mercator Projection corresponding to the Ellipsoid and the list of parameters given in argument and initialize common parameters lon0 and other parameters useful for the projection.

Parameters:

ellipsoid - ellipsoid used to define the projection.

parameters - a map of useful parameters to define the projection.

Method Detail

getSurface

public Projection.Surface getSurface()

Return the Surface type of this Projection.

Specified by:

getSurface in class Projection

getProperty

public Projection.Property getProperty()

Return the Property of this Projection.

Specified by:

getProperty in class Projection

getOrientation

public Projection.Orientation getOrientation()

Return the Orientation of this Projection.

Specified by:

getOrientation in class Projection

transform

public double[] transform(double[] coord)
                   throws CoordinateDimensionException

Transform coord using the Gauss Schreiber Transverse Mercator Projection. Input coord is supposed to be a geographic latitude / longitude coordinate in radians. Algorithm based on the OGP's Guidance Note Number 7 Part 2 :

Specified by:

transform in interface CoordinateOperation

Specified by:

transform in class AbstractCoordinateOperation

Parameters:

coord - coordinate to transform

Returns:

a double array containing the output coordinate

Throws:

CoordinateDimensionException - if coord length is not compatible with this CoordinateOperation.

inverse

public CoordinateOperation inverse()
                            throws NonInvertibleOperationException

Creates the inverse operation for Gauss Schreiber Transverse Mercator Projection. Input coord is supposed to be a projected easting / northing coordinate in meters. Algorithm based on the OGP's Guidance Note Number 7 Part 2 :

Specified by:

inverse in interface CoordinateOperation

Overrides:

inverse in class AbstractCoordinateOperation

Parameters:

coord - coordinate to transform

Throws:

NonInvertibleOperationException