Bivariate |
Bivariate Akima interpolation for gridded data.
Inheritance HierarchyNamespace: Altaxo.Calc.Interpolation
Assembly: AltaxoCore (in AltaxoCore.dll) Version: 4.8.3572.0 (4.8.3572.0)
SyntaxC#
public class BivariateAkimaSpline : IBivariateInterpolationFunctionWithDerivatives, IBivariateInterpolationFunction
The BivariateAkimaSpline type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | BivariateAkimaSpline(IReadOnlyListDouble, IReadOnlyListDouble, IROMatrixDouble) | Constructs an Akima bivariate interpolator. |
| BivariateAkimaSpline(IReadOnlyListDouble, IReadOnlyListDouble, IROMatrixDouble, Boolean) | Constructs an Akima bivariate interpolator. |
| BivariateAkimaSpline(IReadOnlyListDouble, IReadOnlyListDouble, IROMatrixDouble, Boolean, Boolean) | Constructs an Akima bivariate interpolator. |
Methods| Name | Description | |
|---|---|---|
| Equals | Determines whether the specified object is equal to the current object. (Inherited from Object) |
 | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object) |
| GetHashCode | Serves as the default hash function. (Inherited from Object) |
| GetType | Gets the Type of the current instance. (Inherited from Object) |
| GetValueAndDerivativesOfXY | Interpolates a single point and also returns the first partial derivatives. |
| GetValueOfXY | Interpolates the z value for a single point defined by the provided x and y coordinates. |
 | Interpolate(Double, Double, Double, Double, Double, Double) | Interpolates a list of points (u, v) and stores results into w. |
| Interpolate(IReadOnlyListDouble, IReadOnlyListDouble, IROMatrixDouble, IReadOnlyListDouble, IReadOnlyListDouble, IVectorDouble) | Interpolates a list of points (u, v) and stores results into w. |
| Interpolate(Double, Double, Double, Double, Double, Double, Double, Double) | Interpolates a list of points (u, v) and stores results into w. Also computes the first partial derivatives which are stored in dwdx and dwdy. |
| Interpolate(IReadOnlyListDouble, IReadOnlyListDouble, IROMatrixDouble, IReadOnlyListDouble, IReadOnlyListDouble, IVectorDouble, IVectorDouble, IVectorDouble) | Interpolates a list of points (u, v) and stores results into w. Also computes the first partial derivatives which are stored in dwdx and dwdy. |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object) |
| ToString | Returns a string that represents the current object. (Inherited from Object) |
Remarks
References:
[1] H. Akima, „A method of bivariate interpolation and smooth surface fitting based on local procedures“, Commun. ACM, Bd. 17, Nr. 1, S. 18–20, Jan. 1974, doi: 10.1145/360767.360779.
[2] H. Akima, „Algorithm 474: Bivariate interpolation and smooth surface fitting based on local procedures [E2]“, Commun. ACM, Bd. 17, Nr. 1, S. 26–31, Jan. 1974, doi: 10.1145/360767.360797.
The FORTRAN sources were translated to C# by D.Lellinger in 2005, and rewritten eliminating the goto statements in 2026.
See Also