public abstract class AbstractMathTransform1D extends AbstractMathTransform implements MathTransform1D
The simplest way to implement this abstract class is to provide an implementation for the following methods only:
MathTransform1D are immutable and thread-safe.
It is highly recommended that third-party implementations be immutable and thread-safe too.
This means that unless otherwise noted in the javadoc, MathTransform1D instances can
be shared by many objects and passed between threads without synchronization.
MathTransform1D may or may not be serializable, at implementation choices.
Most Apache SIS implementations are serializable, but the serialized objects are not guaranteed to be compatible
with future SIS versions. Serialization should be used only for short term storage or RMI between applications
running the same SIS version.Defined in the sis-referencing module
| Modifier and Type | Class and Description |
|---|---|
protected class |
AbstractMathTransform1D.Inverse
Base class for implementation of inverse math transforms.
|
| Modifier | Constructor and Description |
|---|---|
protected |
AbstractMathTransform1D()
Constructor for subclasses.
|
| Modifier and Type | Method and Description |
|---|---|
Matrix |
derivative(DirectPosition point)
Gets the derivative of this transform at a point.
|
abstract double |
derivative(double value)
Gets the derivative of this function at a value.
|
int |
getSourceDimensions()
Returns the dimension of input points, which is always 1.
|
int |
getTargetDimensions()
Returns the dimension of output points, which is always 1.
|
MathTransform1D |
inverse()
Returns the inverse transform of this object.
|
abstract double |
transform(double value)
Transforms the specified value.
|
Matrix |
transform(double[] srcPts,
int srcOff,
double[] dstPts,
int dstOff,
boolean derivate)
Transforms a single point in the given array and opportunistically computes its derivative if requested.
|
computeHashCode, equals, equals, formatTo, getContextualParameters, getParameterDescriptors, getParameterValues, hashCode, isIdentity, transform, transform, transform, transform, transform, tryConcatenateprint, toString, toString, toWKTclone, finalize, getClass, notify, notifyAll, wait, wait, waitisIdentity, toWKT, transform, transform, transform, transform, transformprotected AbstractMathTransform1D()
public final int getSourceDimensions()
getSourceDimensions in interface MathTransformgetSourceDimensions in class AbstractMathTransformDefaultOperationMethod.getSourceDimensions()public final int getTargetDimensions()
getTargetDimensions in interface MathTransformgetTargetDimensions in class AbstractMathTransformDefaultOperationMethod.getTargetDimensions()public abstract double transform(double value)
throws TransformException
transform in interface MathTransform1Dvalue - the value to transform.TransformException - if the value can not be transformed.public Matrix transform(double[] srcPts, int srcOff, double[] dstPts, int dstOff, boolean derivate) throws TransformException
transform(double) and potentially to derivative(double).
Subclasses may override this method for performance reason.transform in class AbstractMathTransformsrcPts - the array containing the source coordinate (can not be null).srcOff - the offset to the point to be transformed in the source array.dstPts - the array into which the transformed coordinate 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.null if the derivate argument is false.TransformException - if the point can not be transformed or
if a problem occurred while calculating the derivative.AbstractMathTransform.derivative(DirectPosition),
AbstractMathTransform.transform(DirectPosition, DirectPosition),
MathTransforms.derivativeAndTransform(MathTransform, double[], int, double[], int)public abstract double derivative(double value)
throws TransformException
derivative in interface MathTransform1Dvalue - the value where to evaluate the derivative.TransformException - if the derivative can not be evaluated at the specified point.public Matrix derivative(DirectPosition point) throws TransformException
point is one-dimensional, then delegates to derivative(double).derivative in interface MathTransformderivative in class AbstractMathTransformpoint - the coordinate point where to evaluate the derivative, or null.null).MismatchedDimensionException - if point does not have the expected dimension.TransformException - if the derivative can not be evaluated at the specified point.public MathTransform1D inverse() throws NoninvertibleTransformException
this if this transform is an identity transform,
or throws an exception otherwise. Subclasses should override this method.inverse in interface MathTransforminverse in interface MathTransform1Dinverse in class AbstractMathTransformNoninvertibleTransformExceptionCopyright © 2010–2017 The Apache Software Foundation. All rights reserved.