Class TransformWrapper2D

java.lang.Object

org.locationtech.proj4j.geoapi.Wrapper

org.locationtech.proj4j.geoapi.TransformWrapper

org.locationtech.proj4j.geoapi.TransformWrapper2D

All Implemented Interfaces:

Serializable, org.opengis.metadata.Identifier, org.opengis.referencing.IdentifiedObject, org.opengis.referencing.operation.CoordinateOperation, org.opengis.referencing.operation.MathTransform, org.opengis.referencing.operation.MathTransform2D, org.opengis.referencing.ReferenceIdentifier

Direct Known Subclasses:

ProjectionWrapper2D

class TransformWrapper2D
extends TransformWrapper
implements org.opengis.referencing.operation.MathTransform2D

Wraps a PROJ4J transform behind the equivalent GeoAPI interface for the two-dimensional case. The exact type of the operation (conversion, transformation or concatenated) is unknown.

Field Summary

Fields

Modifier and Type	Field	Description
private TransformWrapper2D	inverse	The inverse of this wrapper, computed when first requested.

Fields inherited from class TransformWrapper

impl

Fields inherited from class Wrapper

BIDIMENSIONAL, TRIDIMENSIONAL

Fields inherited from interface org.opengis.referencing.operation.CoordinateOperation

COORDINATE_OPERATION_ACCURACY_KEY, DOMAIN_OF_VALIDITY_KEY, OPERATION_VERSION_KEY, SCOPE_KEY

Fields inherited from interface org.opengis.referencing.IdentifiedObject

ALIAS_KEY, IDENTIFIERS_KEY, NAME_KEY, REMARKS_KEY

Fields inherited from interface org.opengis.metadata.Identifier

AUTHORITY_KEY, CODE_KEY

Fields inherited from interface org.opengis.referencing.ReferenceIdentifier

CODESPACE_KEY, VERSION_KEY

Constructor Summary

Constructors

Constructor	Description
TransformWrapper2D(CoordinateTransform impl)	Creates a new wrapper for the given PROJ4J implementation.

Method Summary

Modifier and Type	Method	Description
Shape	createTransformedShape(Shape shape)	Transforms the given shape.
org.opengis.referencing.operation.Matrix	derivative(Point2D point)	Unsupported operation.
final int	getSourceDimensions()	Returns the number of dimensions of input coordinates, which is 2.
final int	getTargetDimensions()	Returns the number of dimensions of output coordinates, which is 2.
org.opengis.referencing.operation.MathTransform2D	inverse()	Returns the inverse of this coordinate operation.
void	transform(double[] srcPts, int srcOff, double[] dstPts, int dstOff, int numPts)	Transforms coordinate tuples in the given arrays in double precision.
void	transform(double[] srcPts, int srcOff, float[] dstPts, int dstOff, int numPts)	Transforms coordinate tuples in the given arrays, with target coordinates converted to single precision.
void	transform(float[] srcPts, int srcOff, double[] dstPts, int dstOff, int numPts)	Transforms coordinate tuples in the given arrays, with source coordinates converted from single precision.
void	transform(float[] srcPts, int srcOff, float[] dstPts, int dstOff, int numPts)	Transforms coordinate tuples in the given arrays in single precision.
Point2D	transform(Point2D ptSrc, Point2D ptDst)	Transforms the specified ptSrc and stores the result in ptDst.

Methods inherited from class TransformWrapper

cannotTransform, checkNumPts, derivative, getCode, getCoordinateOperationAccuracy, getMathTransform, getOperationVersion, getSourceCRS, getTargetCRS, implementation, isIdentity, transform, wrap

Methods inherited from class Wrapper

equals, getAlias, getAuthority, getCodeSpace, getDomainOfValidity, getIdentifiers, getName, getRemarks, getScope, getVersion, hashCode, toString, toWKT

Methods inherited from class Object

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

Methods inherited from interface org.opengis.referencing.operation.CoordinateOperation

getDomainOfValidity, getScope

Methods inherited from interface org.opengis.referencing.IdentifiedObject

getAlias, getIdentifiers, getName, getRemarks, toWKT

Methods inherited from interface org.opengis.referencing.operation.MathTransform

derivative, isIdentity, toWKT, transform

Field Details

inverse

private transient TransformWrapper2D inverse

The inverse of this wrapper, computed when first requested.

See Also:

• inverse()

Constructor Details

TransformWrapper2D

TransformWrapper2D(CoordinateTransform impl)

Creates a new wrapper for the given PROJ4J implementation.

Method Details

getSourceDimensions

public final int getSourceDimensions()

Returns the number of dimensions of input coordinates, which is 2.. This number of dimensions is implied by the MathTransform2D interface implemented by this class.

Specified by:

getSourceDimensions in interface org.opengis.referencing.operation.MathTransform

Returns:

the number of dimensions of input coordinates, which is 2

getTargetDimensions

public final int getTargetDimensions()

Returns the number of dimensions of output coordinates, which is 2.. This number of dimensions is implied by the MathTransform2D interface implemented by this class.

Specified by:

getTargetDimensions in interface org.opengis.referencing.operation.MathTransform

Returns:

the number of dimensions of output coordinates, which is 2

transform

public Point2D transform(Point2D ptSrc,
 Point2D ptDst)
                  throws org.opengis.referencing.operation.TransformException

Transforms the specified ptSrc and stores the result in ptDst.

Specified by:

transform in interface org.opengis.referencing.operation.MathTransform2D

Throws:

org.opengis.referencing.operation.TransformException

transform

public void transform(double[] srcPts,
 int srcOff,
 double[] dstPts,
 int dstOff,
 int numPts)
               throws org.opengis.referencing.operation.TransformException

Transforms coordinate tuples in the given arrays in double precision. This is the most frequently used method.

Specified by:

transform in interface org.opengis.referencing.operation.MathTransform

Throws:

org.opengis.referencing.operation.TransformException

transform

public void transform(float[] srcPts,
 int srcOff,
 float[] dstPts,
 int dstOff,
 int numPts)
               throws org.opengis.referencing.operation.TransformException

Transforms coordinate tuples in the given arrays in single precision. This is a copy of the double-precision variant of this method with only cast added.

Specified by:

transform in interface org.opengis.referencing.operation.MathTransform

Throws:

org.opengis.referencing.operation.TransformException

transform

public void transform(float[] srcPts,
 int srcOff,
 double[] dstPts,
 int dstOff,
 int numPts)
               throws org.opengis.referencing.operation.TransformException

Transforms coordinate tuples in the given arrays, with source coordinates converted from single precision.

Specified by:

transform in interface org.opengis.referencing.operation.MathTransform

Throws:

org.opengis.referencing.operation.TransformException

transform

public void transform(double[] srcPts,
 int srcOff,
 float[] dstPts,
 int dstOff,
 int numPts)
               throws org.opengis.referencing.operation.TransformException

Transforms coordinate tuples in the given arrays, with target coordinates converted to single precision.

Specified by:

transform in interface org.opengis.referencing.operation.MathTransform

Throws:

org.opengis.referencing.operation.TransformException

createTransformedShape

public Shape createTransformedShape(Shape shape)
                             throws org.opengis.referencing.operation.TransformException

Transforms the given shape. This simple implementation transforms the control points. It does not check if some straight lines should be converted to curves.

Specified by:

createTransformedShape in interface org.opengis.referencing.operation.MathTransform2D

Throws:

org.opengis.referencing.operation.TransformException

derivative

public org.opengis.referencing.operation.Matrix derivative(Point2D point)
                                                    throws org.opengis.referencing.operation.TransformException

Unsupported operation.

Specified by:

derivative in interface org.opengis.referencing.operation.MathTransform2D

Throws:

org.opengis.referencing.operation.TransformException

inverse

public org.opengis.referencing.operation.MathTransform2D inverse()

Returns the inverse of this coordinate operation..

Specified by:

inverse in interface org.opengis.referencing.operation.MathTransform

Specified by:

inverse in interface org.opengis.referencing.operation.MathTransform2D

Returns:

the inverse of this coordinate operation