Class BicubicFunction
- java.lang.Object
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- org.apache.commons.math3.analysis.interpolation.BicubicFunction
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- All Implemented Interfaces:
BivariateFunction
class BicubicFunction extends java.lang.Object implements BivariateFunction
Bicubic function.
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Constructor Summary
Constructors Constructor Description BicubicFunction(double[] coeff)
Simple constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description private double
apply(double[] pX, double[] pY, double[][] coeff)
Compute the value of the bicubic polynomial.double
value(double x, double y)
Compute the value for the function.
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Field Detail
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N
private static final short N
Number of points.- See Also:
- Constant Field Values
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a
private final double[][] a
Coefficients
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Method Detail
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value
public double value(double x, double y)
Compute the value for the function.- Specified by:
value
in interfaceBivariateFunction
- Parameters:
x
- Abscissa for which the function value should be computed.y
- Ordinate for which the function value should be computed.- Returns:
- the value.
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apply
private double apply(double[] pX, double[] pY, double[][] coeff)
Compute the value of the bicubic polynomial.- Parameters:
pX
- Powers of the x-coordinate.pY
- Powers of the y-coordinate.coeff
- Spline coefficients.- Returns:
- the interpolated value.
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