org.apache.commons.math3.analysis.interpolation
public class TricubicSplineInterpolator extends Object implements TrivariateGridInterpolator
Constructor and Description |
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TricubicSplineInterpolator() |
Modifier and Type | Method and Description |
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TricubicSplineInterpolatingFunction |
interpolate(double[] xval,
double[] yval,
double[] zval,
double[][][] fval)
Compute an interpolating function for the dataset.
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private int |
nextIndex(int i,
int max)
Compute the next index of an array, clipping if necessary.
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private int |
previousIndex(int i)
Compute the previous index of an array, clipping if necessary.
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public TricubicSplineInterpolatingFunction interpolate(double[] xval, double[] yval, double[] zval, double[][][] fval) throws NoDataException, DimensionMismatchException, NonMonotonicSequenceException
interpolate
in interface TrivariateGridInterpolator
xval
- All the x-coordinates of the interpolation points, sorted
in increasing order.yval
- All the y-coordinates of the interpolation points, sorted
in increasing order.zval
- All the z-coordinates of the interpolation points, sorted
in increasing order.fval
- the values of the interpolation points on all the grid knots:
fval[i][j][k] = f(xval[i], yval[j], zval[k])
.NoDataException
- if any of the arrays has zero length.DimensionMismatchException
- if the array lengths are inconsistent.NonMonotonicSequenceException
private int nextIndex(int i, int max)
i
is larger than or equal to 0}.i
- Indexmax
- Upper limit of the arrayprivate int previousIndex(int i)
i
is smaller than the size of the array.i
- IndexCopyright (c) 2003-2013 Apache Software Foundation