Package org.geotools.referencing.operation.transform

Class AbstractMathTransform.Inverse

Object
Formattable
AbstractMathTransform
Inverse
All Implemented Interfaces:
Serializable, MathTransform
Enclosing class:
AbstractMathTransform
protected abstract class AbstractMathTransform.Inverse extends AbstractMathTransform implements Serializable
Default implementation for inverse math transform. This inner class is the inverse of the enclosing MathTransform. It is serializable only if the enclosing math transform is also serializable.
Since:
2.0
Author:
Martin Desruisseaux (IRD)
See Also:

  • Constructor Details

    • Inverse

      protected Inverse()
      Constructs an inverse math transform.

  • Method Details

    • getName

      public String getName()
      Returns a name for this math transform (never null). The default implementation returns the direct transform name concatenated with localized flavor (when available) of "(Inverse transform)".
      Overrides:
      getName in class AbstractMathTransform
      Returns:
      A name for this math transform (never null).
      Since:
      2.5

    • getSourceDimensions

      public int getSourceDimensions()
      Gets the dimension of input points. The default implementation returns the dimension of output points of the enclosing math transform.
      Specified by:
      getSourceDimensions in interface MathTransform
      Specified by:
      getSourceDimensions in class AbstractMathTransform
      Returns:
      The dimension of input points.

    • getTargetDimensions

      public int getTargetDimensions()
      Gets the dimension of output points. The default implementation returns the dimension of input points of the enclosing math transform.
      Specified by:
      getTargetDimensions in interface MathTransform
      Specified by:
      getTargetDimensions in class AbstractMathTransform
      Returns:
      The dimension of output points.

    • derivative

      public Matrix derivative(Point2D point) throws TransformException
      Gets the derivative of this transform at a point. The default implementation compute the inverse of the matrix returned by the enclosing math transform.
      Overrides:
      derivative in class AbstractMathTransform
      Parameters:
      point - The coordinate point where to evaluate the derivative.
      Returns:
      The derivative at the specified point as a 2×2 matrix.
      Throws:
      TransformException - if the derivative can't be evaluated at the specified point.
      See Also:

    • derivative

      public Matrix derivative(Position point) throws TransformException
      Gets the derivative of this transform at a point. The default implementation compute the inverse of the matrix returned by the enclosing math transform.
      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()
      Returns the inverse of this math transform, which is the enclosing math transform. This behavior should not be changed since some implementation assume that the inverse of this is always AbstractMathTransform.this.
      Specified by:
      inverse in interface MathTransform
      Overrides:
      inverse in class AbstractMathTransform
      Returns:
      The inverse transform.

    • isIdentity

      public boolean isIdentity()
      Tests whether this transform does not move any points. The default implementation delegate this tests to the enclosing math transform.
      Specified by:
      isIdentity in interface MathTransform
      Overrides:
      isIdentity in class AbstractMathTransform
      Returns:
      true if this MathTransform is an identity transform; false otherwise.

    • hashCode

      public int hashCode()
      Returns a hash code value for this math transform.
      Overrides:
      hashCode in class AbstractMathTransform

    • equals

      public boolean equals(Object object)
      Compares the specified object with this inverse math transform for equality. The default implementation tests if object in an instance of the same class than this, and then test their enclosing math transforms.
      Overrides:
      equals in class AbstractMathTransform
      Parameters:
      object - The object to compare with this transform.
      Returns:
      true if the given object is a transform of the same class and if, given identical source position, the transformed position would be the equals.

    • formatWKT

      protected String formatWKT(Formatter formatter)
      Format the inner part of a Well Known Text (WKT) element. If this inverse math transform has any parameter values, then this method format the WKT as in the super-class method. Otherwise this method format the math transform as an "INVERSE_MT" entity.
      Overrides:
      formatWKT in class AbstractMathTransform
      Parameters:
      formatter - The formatter to use.
      Returns:
      The WKT element name, which is "PARAM_MT" or "INVERSE_MT" in the default implementation.
      See Also: