org.cts.op.transformation
Class FrenchGeocentricNTF2RGF

java.lang.Object
  org.cts.IdentifiableComponent
      org.cts.op.AbstractCoordinateOperation
          org.cts.op.transformation.FrenchGeocentricNTF2RGF

All Implemented Interfaces:

Identifiable, CoordinateOperation

public class FrenchGeocentricNTF2RGF
extends AbstractCoordinateOperation

French Geocentric interpolation is a transformation used at IGN-France to transform coordinates from the old local NTF system to the new ETRS-89 compatible RGF93.

It is a geocentric translation which parameters are interpolated on a geographic grid.

Author:

Michaël Michaud, Jules Party, Erwan Bocher

Field Summary

static UnitConversion

RAD2DD

Fields inherited from class org.cts.op.AbstractCoordinateOperation

precision

Fields inherited from interface org.cts.Identifiable

DEFAULT, LOCAL, UNKNOWN

Constructor Summary

FrenchGeocentricNTF2RGF()
Geocentric translation with parameters interpolated in a grid.

FrenchGeocentricNTF2RGF(String gridPath)
Geocentric translation with parameters interpolated in a grid.

Method Summary

CoordinateOperation	inverse() Creates the inverse CoordinateOperation.
String	toString() Return a string representation of this transformation.
double[]	transform(double[] coord) Transforms NTF Geocentric coordinate into RGF93 geocentric coordinate.

Methods inherited from class org.cts.op.AbstractCoordinateOperation

getPrecision

Methods inherited from class org.cts.IdentifiableComponent

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

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

RAD2DD

public static final UnitConversion RAD2DD

Constructor Detail

FrenchGeocentricNTF2RGF

public FrenchGeocentricNTF2RGF(String gridPath)
                        throws Exception

Geocentric translation with parameters interpolated in a grid.

The gride can be found here.

Parameters:

gridPath - url of the geographic grid containing the translation parameters

Throws:

Exception

FrenchGeocentricNTF2RGF

public FrenchGeocentricNTF2RGF()
                        throws Exception

Geocentric translation with parameters interpolated in a grid.

The gride can be found here.

Throws:

Exception

Method Detail

transform

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

Transforms NTF Geocentric coordinate into RGF93 geocentric coordinate.

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:

IllegalCoordinateException - if coord is not compatible with this CoordinateOperation.

inverse

public CoordinateOperation inverse()
                            throws NonInvertibleOperationException

Creates the inverse CoordinateOperation.

Specified by:

inverse in interface CoordinateOperation

Overrides:

inverse in class AbstractCoordinateOperation

Throws:

NonInvertibleOperationException

toString

public String toString()

Return a string representation of this transformation.

Overrides:

toString in class IdentifiableComponent