```
public interface BoundSurfaceInterpolator
```
A surface interpolator that has been bound to a specific surface.
A bound interpolator is created from a SurfaceInterpolator. The bind process takes the definition of the interpolator and combines it with the x-y-z values. This allows implementations to optimize interpolation calculations.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`ValueDerivatives`	`firstPartialDerivatives(double x, double y)`	Computes the partial derivatives of the surface.
`double`	`interpolate(double x, double y)`	Computes the z-value for the specified x-y-value by interpolation.
`DoubleArray`	`parameterSensitivity(double x, double y)`	Computes the sensitivity of the x-y-value with respect to the surface parameters.

- Method Detail
  - interpolate
```
double interpolate(double x,
                   double y)
```
    Computes the z-value for the specified x-y-value by interpolation.
    
    Parameters:
    
    x - the x-value to find the z-value for
    
    y - the y-value to find the z-value for
    
    Returns:
    
    the value at the x-y-value
    
    Throws:
    
    RuntimeException - if the z-value cannot be calculated
  - firstPartialDerivatives
```
ValueDerivatives firstPartialDerivatives(double x,
                                         double y)
```
    Computes the partial derivatives of the surface.
    The first derivatives are dz/dx and dz/dy. The derivatives are in the following order:
    
    [0] derivative with respect to x
    [1] derivative with respect to y
    Parameters:
    
    x - the x-value at which the partial derivative is taken
    
    y - the y-value at which the partial derivative is taken
    
    Returns:
    
    the z-value and it's partial first derivatives
    
    Throws:
    
    RuntimeException - if the derivative cannot be calculated
  - parameterSensitivity
```
DoubleArray parameterSensitivity(double x,
                                 double y)
```
    Computes the sensitivity of the x-y-value with respect to the surface parameters.
    This returns an array with one element for each parameter of the surface. The array contains the sensitivity of the z-value at the specified x-y-value to each parameter.
    
    Parameters:
    
    x - the x-value at which the parameter sensitivity is computed
    
    y - the y-value at which the parameter sensitivity is computed
    
    Returns:
    
    the sensitivity
    
    Throws:
    
    RuntimeException - if the sensitivity cannot be calculated

Interface BoundSurfaceInterpolator

Method Summary

Method Detail

interpolate

firstPartialDerivatives

parameterSensitivity