Package org.esa.snap.core.util.math
Class FXYSum.Quadric
java.lang.Object
org.esa.snap.core.util.math.FXYSum
org.esa.snap.core.util.math.FXYSum.Quadric
- Enclosing class:
FXYSum
Provides an optimized
computeZ method for quadric polynomials (order = 2).- See Also:
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Nested Class Summary
Nested classes/interfaces inherited from class org.esa.snap.core.util.math.FXYSum
FXYSum.BiCubic, FXYSum.BiLinear, FXYSum.BiQuadric, FXYSum.Cubic, FXYSum.Linear, FXYSum.Quadric -
Field Summary
Fields inherited from class org.esa.snap.core.util.math.FXYSum
FXY_4TH, FXY_BI_4TH, FXY_BI_CUBIC, FXY_BI_LINEAR, FXY_BI_QUADRATIC, FXY_CUBIC, FXY_LINEAR, FXY_QUADRATIC -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptiondoublecomputeZ(double x, double y) Computes this sum of function terms z(x,y) = sum(c[i] * f[i](x,y), i=0, n-1).Methods inherited from class org.esa.snap.core.util.math.FXYSum
appendCFunctionCodeBody, appendCFunctionCodeEnd, appendCFunctionCodePart, appendCFunctionCodeStart, approximate, computeZ, createCFunctionCode, createCopy, createFXYSum, getCoefficients, getFunctions, getMaxError, getNumTerms, getOrder, getRootMeanSquareError
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Constructor Details
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Quadric
public Quadric() -
Quadric
public Quadric(double[] coefficients)
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Method Details
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computeZ
public double computeZ(double x, double y) Description copied from class:FXYSumComputes this sum of function terms z(x,y) = sum(c[i] * f[i](x,y), i=0, n-1). The method will return zero unless theFXYSum.approximate(double[][], int[])is called in order to set the coefficient vector c.
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