Module org.apache.sis.referencing
Class AbstractMathTransform1D.Inverse
- All Implemented Interfaces:
Parameterized,LenientComparable,MathTransform,MathTransform1D
- Enclosing class:
AbstractMathTransform1D
protected abstract static class AbstractMathTransform1D.Inverse
extends AbstractMathTransform.Inverse
implements MathTransform1D
Base class for implementation of inverse math transforms.
This inner class is the inverse of the enclosing
AbstractMathTransform1D.
Serialization
This object 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.- Since:
- 0.7
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Nested Class Summary
Nested classes/interfaces inherited from class AbstractMathTransform
AbstractMathTransform.Inverse -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionderivative(DirectPosition point) Gets the derivative of this transform at a point.abstract MathTransform1Dinverse()Returns the inverse of this math transform.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.Methods inherited from class AbstractMathTransform.Inverse
computeHashCode, equals, formatTo, getDomain, getSourceDimensions, getTargetDimensions, isIdentityMethods inherited from class AbstractMathTransform
equals, getContextualParameters, getParameterDescriptors, getParameterValues, hashCode, transform, transform, transform, transform, transform, tryConcatenateMethods inherited from class FormattableObject
print, toString, toString, toWKTMethods inherited from class Object
clone, finalize, getClass, notify, notifyAll, wait, wait, waitMethods inherited from interface MathTransform
getSourceDimensions, getTargetDimensions, isIdentity, toWKT, transform, transform, transform, transform, transformMethods inherited from interface MathTransform1D
derivative, transform
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Constructor Details
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Inverse
protected Inverse()Constructs an inverse math transform.
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Method Details
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inverse
Returns the inverse of this math transform. The returned transform should be the enclosing math transform.- Specified by:
inversein interfaceMathTransform- Specified by:
inversein interfaceMathTransform1D- Specified by:
inversein classAbstractMathTransform.Inverse- Returns:
- the inverse of this transform.
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transform
public Matrix transform(double[] srcPts, int srcOff, double[] dstPts, int dstOff, boolean derivate) throws TransformException Transforms a single point in the given array and opportunistically computes its derivative if requested. The default implementation delegates toMathTransform1D.transform(double)and potentially toMathTransform1D.derivative(double). Subclasses may override this method for performance reason.- Specified by:
transformin classAbstractMathTransform- Parameters:
srcPts- the array containing the source coordinates (cannot benull).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 thansrcPts. May benullif only the derivative matrix is desired.dstOff- the offset to the location of the transformed point that is stored in the destination array.derivate-truefor computing the derivative, orfalseif not needed.- Returns:
- the matrix of the transform derivative at the given source position,
or
nullif thederivateargument isfalse. - Throws:
TransformException- if the point cannot be transformed or if a problem occurred while calculating the derivative.- See Also:
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derivative
Gets the derivative of this transform at a point. The default implementation ensures thatpointis one-dimensional, then delegates toMathTransform1D.derivative(double).- Specified by:
derivativein interfaceMathTransform- Overrides:
derivativein classAbstractMathTransform.Inverse- Parameters:
point- the position where to evaluate the derivative, ornull.- Returns:
- the derivative at the specified point (never
null). - Throws:
MismatchedDimensionException- ifpointdoes not have the expected dimension.TransformException- if the derivative cannot be evaluated at the specified point.
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