Class LogarithmicTransform1D

    • Field Detail

      • base

        public final double base
        The base of the logarithm.
      • offset

        public final double offset
        The offset to add to the logarithm.
    • Constructor Detail

      • LogarithmicTransform1D

        protected LogarithmicTransform1D​(double base,
                                         double offset)
        Constructs a new logarithmic transform. This constructor is provided for subclasses only. Instances should be created using the factory method, which may returns optimized implementations for some particular argument values.
        Parameters:
        base - The base of the logarithm (typically 10).
        offset - The offset to add to the logarithm.
    • Method Detail

      • create

        public static MathTransform1D create​(double base,
                                             double offset)
        Constructs a new logarithmic transform.
        Parameters:
        base - The base of the logarithm (typically 10).
        offset - The offset to add to the logarithm.
        Returns:
        The math transform.
      • derivative

        public double derivative​(double value)
        Gets the derivative of this function at a value.
        Specified by:
        derivative in interface MathTransform1D
        Parameters:
        value - The value where to evaluate the derivative.
        Returns:
        The derivative at the specified point.
      • transform

        public double transform​(double value)
        Transforms the specified value.
        Specified by:
        transform in interface MathTransform1D
        Parameters:
        value - The value to transform.
        Returns:
        the transformed value.
      • transform

        public void transform​(float[] srcPts,
                              int srcOff,
                              float[] dstPts,
                              int dstOff,
                              int numPts)
        Transforms a list of coordinate point ordinal values.
        Specified by:
        transform in interface MathTransform
        Overrides:
        transform in class AbstractMathTransform
        Parameters:
        srcPts - the array containing the source point coordinates.
        srcOff - the offset to the first point to be transformed in the source array.
        dstPts - the array into which the transformed point coordinates are returned. May be the same than srcPts.
        dstOff - the offset to the location of the first transformed point that is stored in the destination array.
        numPts - the number of point objects to be transformed.
      • transform

        public void transform​(double[] srcPts,
                              int srcOff,
                              double[] dstPts,
                              int dstOff,
                              int numPts)
        Transforms a list of coordinate point ordinal values.
        Specified by:
        transform in interface MathTransform
        Parameters:
        srcPts - the array containing the source point coordinates.
        srcOff - the offset to the first point to be transformed in the source array.
        dstPts - the array into which the transformed point coordinates are returned. May be the same than srcPts.
        dstOff - the offset to the location of the first transformed point that is stored in the destination array.
        numPts - the number of point objects to be transformed.
      • hashCode

        public int hashCode()
        Returns a hash value for this transform. This value need not remain consistent between different implementations of the same class.
        Overrides:
        hashCode in class AbstractMathTransform
      • equals

        public boolean equals​(Object object)
        Compares the specified object with this math transform for equality.
        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.