Package org.apache.commons.math3.analysis.interpolation

Class BicubicInterpolatingFunction

java.lang.Object
org.apache.commons.math3.analysis.interpolation.BicubicInterpolatingFunction
All Implemented Interfaces:
BivariateFunction
public class BicubicInterpolatingFunction extends Object implements BivariateFunction
Function that implements the bicubic spline interpolation.
Since:
3.4

  • Constructor Details

    • BicubicInterpolatingFunction

      public BicubicInterpolatingFunction(double[] x, double[] y, double[][] f, double[][] dFdX, double[][] dFdY, double[][] d2FdXdY) throws DimensionMismatchException, NoDataException, NonMonotonicSequenceException
      Parameters:
      x - Sample values of the x-coordinate, in increasing order.
      y - Sample values of the y-coordinate, in increasing order.
      f - Values of the function on every grid point.
      dFdX - Values of the partial derivative of function with respect to x on every grid point.
      dFdY - Values of the partial derivative of function with respect to y on every grid point.
      d2FdXdY - Values of the cross partial derivative of function on every grid point.
      Throws:
      DimensionMismatchException - if the various arrays do not contain the expected number of elements.
      NonMonotonicSequenceException - if x or y are not strictly increasing.
      NoDataException - if any of the arrays has zero length.

  • Method Details

    • value

      public double value(double x, double y) throws OutOfRangeException
      Compute the value for the function.
      Specified by:
      value in interface BivariateFunction
      Parameters:
      x - Abscissa for which the function value should be computed.
      y - Ordinate for which the function value should be computed.
      Returns:
      the value.
      Throws:
      OutOfRangeException

    • isValidPoint

      public boolean isValidPoint(double x, double y)
      Indicates whether a point is within the interpolation range.
      Parameters:
      x - First coordinate.
      y - Second coordinate.
      Returns:
      true if (x, y) is a valid point.