Package org.apache.sis.referencing.operation.transform

Class InterpolatedGeocentricTransform.Inverse

java.lang.Object

org.apache.sis.io.wkt.FormattableObject

org.apache.sis.referencing.operation.transform.AbstractMathTransform

org.apache.sis.referencing.operation.transform.DatumShiftTransform

org.apache.sis.referencing.operation.transform.InterpolatedGeocentricTransform

org.apache.sis.referencing.operation.transform.InterpolatedGeocentricTransform.Inverse

All Implemented Interfaces:

Serializable, Parameterized, LenientComparable, org.opengis.referencing.operation.MathTransform

Direct Known Subclasses:

InterpolatedGeocentricTransform2D.Inverse

Enclosing class:

InterpolatedGeocentricTransform

static class InterpolatedGeocentricTransform.Inverse
extends InterpolatedGeocentricTransform

The inverse of the enclosing InterpolatedGeocentricTransform. This transform applies an algorithm similar to the one documented in the enclosing class, with the following differences:

1. First, target coordinates are estimated using the (tX, tY, tZ) translation.
2. A new (ΔX, ΔY, ΔZ) translation is interpolated at the geographic coordinates found in above step, and target coordinates are recomputed again using that new translation.

Since:

0.7

Version:

0.7

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.sis.referencing.operation.transform.InterpolatedGeocentricTransform

InterpolatedGeocentricTransform.Inverse

Field Summary

Fields

Modifier and Type	Field	Description
private static final long	serialVersionUID	Serial number for inter-operability with different versions.
private final double	tX	Initial translation values to use before to improve the accuracy with the interpolation.
private final double	tY	Initial translation values to use before to improve the accuracy with the interpolation.
private final double	tZ	Initial translation values to use before to improve the accuracy with the interpolation.

Fields inherited from class org.apache.sis.referencing.operation.transform.InterpolatedGeocentricTransform

centricToEllipsoid, DESCRIPTOR, ellipsoidToCentric, scale, semiMajor

Fields inherited from class org.apache.sis.referencing.operation.transform.DatumShiftTransform

context, grid

Fields inherited from class org.apache.sis.referencing.operation.transform.AbstractMathTransform

MAXIMUM_BUFFER_SIZE, MAXIMUM_FAILURES

Constructor Summary

Constructors

Constructor	Description
Inverse(InterpolatedGeocentricTransform inverse, org.opengis.referencing.datum.Ellipsoid source, org.opengis.referencing.datum.Ellipsoid target)	Constructs the inverse of an interpolated geocentric transform.

Method Summary

Modifier and Type	Method	Description
org.opengis.referencing.operation.Matrix	transform(double[] srcPts, int srcOff, double[] dstPts, int dstOff, boolean derivate)	Transforms the (λ,φ) or (λ,φ,h) coordinates between two geographic CRS, and optionally returns the derivative at that location.

Methods inherited from class org.apache.sis.referencing.operation.transform.InterpolatedGeocentricTransform

concatenate, createGeodeticTransformation, getSourceDimensions, getTargetDimensions, inverse

Methods inherited from class org.apache.sis.referencing.operation.transform.DatumShiftTransform

computeHashCode, ensureGeocentricTranslation, equals, getContextualParameters, getParameterValues, normalizedToGridX, normalizedToGridY, setContextParameters

Methods inherited from class org.apache.sis.referencing.operation.transform.AbstractMathTransform

beforeFormat, derivative, equals, formatTo, getDomain, getParameterDescriptors, hashCode, isIdentity, isInverseEquals, mismatchedDimension, transform, transform, transform, transform, transform, tryConcatenate

Methods inherited from class org.apache.sis.io.wkt.FormattableObject

print, toString, toString, toWKT

Methods inherited from class java.lang.Object

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

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

toWKT

Field Details

serialVersionUID

private static final long serialVersionUID

Serial number for inter-operability with different versions.

See Also:

• Constant Field Values

tX

private final double tX

Initial translation values to use before to improve the accuracy with the interpolation.

tY

private final double tY

Initial translation values to use before to improve the accuracy with the interpolation.

tZ

private final double tZ

Initial translation values to use before to improve the accuracy with the interpolation.

Constructor Details

Inverse

Inverse(InterpolatedGeocentricTransform inverse,
 org.opengis.referencing.datum.Ellipsoid source,
 org.opengis.referencing.datum.Ellipsoid target)

Constructs the inverse of an interpolated geocentric transform.

Parameters:

inverse - The transform for which to create the inverse.

source - The source ellipsoid of the given inverse transform.

target - The target ellipsoid of the given inverse transform.

Method Details

transform

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

Transforms the (λ,φ) or (λ,φ,h) coordinates between two geographic CRS, and optionally returns the derivative at that location.

Overrides:

transform in class InterpolatedGeocentricTransform

Parameters:

srcPts - the array containing the source coordinates (cannot be null).

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

dstPts - the array into which the transformed coordinates is returned. May be the same than srcPts. May be null if only the derivative matrix is desired.

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

derivate - true for computing the derivative, or false if not needed.

Returns:

the matrix of the transform derivative at the given source position, or null if the derivate argument is false.

Throws:

org.opengis.referencing.operation.TransformException - if the point cannot be transformed or if a problem occurred while calculating the derivative.

See Also:

• AbstractMathTransform.derivative(DirectPosition)
• AbstractMathTransform.transform(DirectPosition, DirectPosition)
• MathTransforms.derivativeAndTransform(MathTransform, double[], int, double[], int)