org.deegree_impl.model.ct
Class MathTransformAdapter

java.lang.Object
  org.deegree_impl.model.ct.AbstractMathTransform
      org.deegree_impl.model.ct.MathTransformAdapter

All Implemented Interfaces:

MathTransform, java.io.Serializable

Direct Known Subclasses:

MathTransformAdapter2D

class MathTransformAdapter

extends AbstractMathTransform

implements java.io.Serializable

Wrap an CT_MathTransform into a MathTransform. This class is provided for compatibility with OpenGIS. It is serializable if the underlying CT_MathTransform is serializable too.

Version:

1.0

Author:

Martin Desruisseaux

Nested Class Summary

Nested classes inherited from class org.deegree_impl.model.ct.AbstractMathTransform

AbstractMathTransform.Inverse

Field Summary

private int	dimSource Dimension of output points.
private int	dimTarget Dimension of input points.
protected MathTransformAdapter	inverse The inverse transform.
private boolean	isIdentity true if this transform does not move any points.
private static long	serialVersionUID Serial number for interoperability with different versions.
protected CT_MathTransform	transform The OpenGIS math transform.

Constructor Summary

MathTransformAdapter(CT_MathTransform transform)
Construct an adapter.

Method Summary

Matrix	derivative(CoordinatePoint point) Gets the derivative of this transform at a point.
boolean	equals(java.lang.Object object) Compares the specified object with this math transform for equality.
int	getDimSource() Gets the dimension of input points.
int	getDimTarget() Gets the dimension of output points.
MathTransform	inverse() Creates the inverse transform of this object.
boolean	isIdentity() Tests whether this transform does not move any points.
(package private) java.lang.Object	toOpenGIS(java.lang.Object adapters) Returns the underlying OpenGIS interface.
void	transform(double[] srcPts, int srcOff, double[] dstPts, int dstOff, int numPts) Transforms a list of coordinate point ordinal values.
void	transform(float[] srcPts, int srcOff, float[] dstPts, int dstOff, int numPts) Transforms a list of coordinate point ordinal values.

Methods inherited from class org.deegree_impl.model.ct.AbstractMathTransform

addParameter, addParameter, createTransformedShape, createTransformedShape, derivative, getName, hashCode, paramMT, toString, transform, transform

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

Serial number for interoperability with different versions.

See Also:

Constant Field Values

transform

protected final CT_MathTransform transform

The OpenGIS math transform.

dimSource

private final int dimSource

Dimension of output points.

dimTarget

private final int dimTarget

Dimension of input points.

isIdentity

private final boolean isIdentity

true if this transform does not move any points.

inverse

protected transient MathTransformAdapter inverse

The inverse transform. This field will be computed only when needed.

Constructor Detail

MathTransformAdapter

public MathTransformAdapter(CT_MathTransform transform)
                     throws java.rmi.RemoteException

Construct an adapter.

Throws:

java.rmi.RemoteException - if a remote call failed.

Method Detail

transform

public final void transform(double[] srcPts,
                            int srcOff,
                            double[] dstPts,
                            int dstOff,
                            int numPts)
                     throws TransformException

Transforms a list of coordinate point ordinal values.

Specified by:

transform in interface MathTransform

Parameters:

srcPts - the array containing the source point coordinates.

srcOff - the offset to the first point to be transformed in the source array.

dstPts - the array into which the transformed point coordinates are returned. May be the same than srcPts.

dstOff - the offset to the location of the first transformed point that is stored in the destination array.

numPts - the number of point objects to be transformed.

Throws:

TransformException - if the points can't be transformed, or if a remote call failed.

transform

public final void transform(float[] srcPts,
                            int srcOff,
                            float[] dstPts,
                            int dstOff,
                            int numPts)
                     throws TransformException

Transforms a list of coordinate point ordinal values.

Specified by:

transform in interface MathTransform

Overrides:

transform in class AbstractMathTransform

Throws:

TransformException - if the points can't be transformed, or if a remote call failed.

derivative

public Matrix derivative(CoordinatePoint point)
                  throws TransformException

Gets the derivative of this transform at a point.

Specified by:

derivative in interface MathTransform

Overrides:

derivative in class AbstractMathTransform

Parameters:

point - The coordinate point where to evaluate the derivative.

Returns:

The derivative at the specified point (never null).

Throws:

TransformException - if the derivative can't be evaluated at the specified point.

inverse

public MathTransform inverse()
                      throws NoninvertibleTransformException

Creates the inverse transform of this object.

Specified by:

inverse in interface MathTransform

Overrides:

inverse in class AbstractMathTransform

Throws:

NoninvertibleTransformException - if the inverse transform can't be created, or if a remote call failed.

getDimSource

public final int getDimSource()

Gets the dimension of input points.

Specified by:

getDimSource in interface MathTransform

See Also:

CT_MathTransform.getDimSource()

getDimTarget

public final int getDimTarget()

Gets the dimension of output points.

Specified by:

getDimTarget in interface MathTransform

See Also:

CT_MathTransform.getDimTarget()

isIdentity

public final boolean isIdentity()

Tests whether this transform does not move any points.

Specified by:

isIdentity in interface MathTransform

Returns:

true if this MathTransform is an identity transform; false otherwise.

toOpenGIS

final java.lang.Object toOpenGIS(java.lang.Object adapters)

Returns the underlying OpenGIS interface.

Overrides:

toOpenGIS in class AbstractMathTransform

equals

public final boolean equals(java.lang.Object object)

Compares the specified object with this math transform for equality.

Overrides:

equals in class AbstractMathTransform