程序包 org.meteoinfo.math.interpolate

类 InterpUtil

java.lang.Object

org.meteoinfo.math.interpolate.InterpUtil

public class InterpUtil
extends java.lang.Object

作者:

Yaqiang Wang

构造器概要

构造器

构造器	说明
InterpUtil()

方法概要

修饰符和类型	方法	说明
static Array	barnes(java.util.List<java.lang.Number> x_s, java.util.List<java.lang.Number> y_s, Array v_s, java.util.List<java.lang.Number> X, java.util.List<java.lang.Number> Y, double kappa, double gamma)	Barnes analysis
static Array	barnes(java.util.List<java.lang.Number> x_s, java.util.List<java.lang.Number> y_s, Array v_s, java.util.List<java.lang.Number> X, java.util.List<java.lang.Number> Y, java.util.List<java.lang.Number> radList, double kappa, double gamma)	Barnes analysis
static Array	cressman(java.util.List<java.lang.Number> x_s, java.util.List<java.lang.Number> y_s, Array v_s, java.util.List<java.lang.Number> X, java.util.List<java.lang.Number> Y, java.util.List<java.lang.Number> radList)	Cressman analysis
static double	evaluate(org.apache.commons.math3.analysis.BivariateFunction func, java.lang.Number x, java.lang.Number y)	Compute the value of the function
static Array	evaluate(org.apache.commons.math3.analysis.BivariateFunction func, Array x, Array y)	Compute the value of the function
static double	evaluate(org.apache.commons.math3.analysis.UnivariateFunction func, java.lang.Number x)	Compute the value of the function
static Array	evaluate(org.apache.commons.math3.analysis.UnivariateFunction func, Array x)	Compute the value of the function
static org.apache.commons.math3.analysis.BivariateFunction	getBiInterpFunc(Array x, Array y, Array z)	Make interpolation function for grid data
static org.apache.commons.math3.analysis.UnivariateFunction	getInterpFunc(Array x, Array y, java.lang.String kind)	Make interpolation function
static Array	interpolation_IDW_Neighbor(java.util.List<java.lang.Number> x_s, java.util.List<java.lang.Number> y_s, Array a, java.util.List<java.lang.Number> X, java.util.List<java.lang.Number> Y, java.lang.Integer points)	Interpolation with IDW neighbor method
static Array	interpolation_IDW_Radius(java.util.List<java.lang.Number> x_s, java.util.List<java.lang.Number> y_s, Array a, java.util.List<java.lang.Number> X, java.util.List<java.lang.Number> Y, int neededPointNum, double radius)	Interpolation with IDW radius method
static java.lang.Object	interpolation_Inside_Count(java.util.List<java.lang.Number> x_s, java.util.List<java.lang.Number> y_s, java.util.List<java.lang.Number> X, java.util.List<java.lang.Number> Y, boolean pointDensity, boolean centerPoint)	Interpolate with inside method - The grid cell value is the count number of the inside points or fill value if no inside point.
static Array	interpolation_Inside_Max(java.util.List<java.lang.Number> x_s, java.util.List<java.lang.Number> y_s, Array a, java.util.List<java.lang.Number> X, java.util.List<java.lang.Number> Y, boolean centerPoint)	Interpolate with inside method - The grid cell value is the maximum value of the inside points or fill value if no inside point.
static Array	interpolation_Inside_Mean(Array x_s, Array y_s, Array a, Array X, Array Y, boolean centerPoint)	Interpolate with inside method - The grid cell value is the average value of the inside points or fill value if no inside point.
static Array	interpolation_Inside_Min(java.util.List<java.lang.Number> x_s, java.util.List<java.lang.Number> y_s, Array a, java.util.List<java.lang.Number> X, java.util.List<java.lang.Number> Y, boolean centerPoint)	Interpolate with inside method - The grid cell value is the minimum value of the inside points or fill value if no inside point.
static Array	interpolation_Nearest(java.util.List<java.lang.Number> x_s, java.util.List<java.lang.Number> y_s, Array a, java.util.List<java.lang.Number> X, java.util.List<java.lang.Number> Y, double radius)	Interpolate with nearest method
static Array	interpolation_Nearest(Array x_s, Array y_s, Array a, Array X, Array Y, double radius)	Interpolate with nearest method
static Array	interpolation_Surface(Array x_s, Array y_s, Array a, Array X, Array Y)	Interpolate with surface method
static org.apache.commons.math3.analysis.polynomials.PolynomialSplineFunction	linearInterpFunc(Array x, Array y)	Make linear interpolation function - PolynomialSplineFunction

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

InterpUtil

public InterpUtil()

方法详细资料

linearInterpFunc

public static org.apache.commons.math3.analysis.polynomials.PolynomialSplineFunction linearInterpFunc(Array x,
                                                                                                      Array y)

Make linear interpolation function - PolynomialSplineFunction

参数:

x - X data

y - Y data

返回:

Linear interpolation function

getInterpFunc

public static org.apache.commons.math3.analysis.UnivariateFunction getInterpFunc(Array x,
                                                                                 Array y,
                                                                                 java.lang.String kind)

Make interpolation function

参数:

x - X data

y - Y data

kind - Specifies the kind of interpolation as a string (‘linear’, 'spline').

返回:

Interpolation function

getBiInterpFunc

public static org.apache.commons.math3.analysis.BivariateFunction getBiInterpFunc(Array x,
                                                                                  Array y,
                                                                                  Array z)

Make interpolation function for grid data

参数:

x - X data

y - Y data

z - Z data

返回:

Interpolation function

evaluate

public static Array evaluate(org.apache.commons.math3.analysis.UnivariateFunction func,
                             Array x)

Compute the value of the function

参数:

func - The function

x - Input data

返回:

Function value

evaluate

public static double evaluate(org.apache.commons.math3.analysis.UnivariateFunction func,
                              java.lang.Number x)

Compute the value of the function

参数:

func - The function

x - Input data

返回:

Function value

evaluate

public static Array evaluate(org.apache.commons.math3.analysis.BivariateFunction func,
                             Array x,
                             Array y)

Compute the value of the function

参数:

func - The function

x - Input x data

y - Input y data

返回:

Function value

evaluate

public static double evaluate(org.apache.commons.math3.analysis.BivariateFunction func,
                              java.lang.Number x,
                              java.lang.Number y)

Compute the value of the function

参数:

func - The function

x - Input x data

y - Input y data

返回:

Function value

cressman

public static Array cressman(java.util.List<java.lang.Number> x_s,
                             java.util.List<java.lang.Number> y_s,
                             Array v_s,
                             java.util.List<java.lang.Number> X,
                             java.util.List<java.lang.Number> Y,
                             java.util.List<java.lang.Number> radList)

Cressman analysis

参数:

x_s - scatter X array

y_s - scatter Y array

v_s - scatter value array

X - x array

Y - y array

radList - radii list

返回:

result grid data

barnes

public static Array barnes(java.util.List<java.lang.Number> x_s,
                           java.util.List<java.lang.Number> y_s,
                           Array v_s,
                           java.util.List<java.lang.Number> X,
                           java.util.List<java.lang.Number> Y,
                           java.util.List<java.lang.Number> radList,
                           double kappa,
                           double gamma)

Barnes analysis

参数:

x_s - scatter X array

y_s - scatter Y array

v_s - scatter value array

X - x array

Y - y array

radList - radii list

kappa - A falloff parameter that controls the width of the Gaussian function

gamma - The smoothing parameter, is constrained to be between 0.2 and 1.0

返回:

result grid data

barnes

public static Array barnes(java.util.List<java.lang.Number> x_s,
                           java.util.List<java.lang.Number> y_s,
                           Array v_s,
                           java.util.List<java.lang.Number> X,
                           java.util.List<java.lang.Number> Y,
                           double kappa,
                           double gamma)

Barnes analysis

参数:

x_s - scatter X array

y_s - scatter Y array

v_s - scatter value array

X - x array

Y - y array

kappa - A falloff parameter that controls the width of the Gaussian function

gamma - The smoothing parameter, is constrained to be between 0.2 and 1.0

返回:

result grid data

interpolation_Inside_Mean

public static Array interpolation_Inside_Mean(Array x_s,
                                              Array y_s,
                                              Array a,
                                              Array X,
                                              Array Y,
                                              boolean centerPoint)

Interpolate with inside method - The grid cell value is the average value of the inside points or fill value if no inside point.

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

X - x coordinate

Y - y coordinate

centerPoint - If the grid point is center or border

返回:

grid data

interpolation_Inside_Max

public static Array interpolation_Inside_Max(java.util.List<java.lang.Number> x_s,
                                             java.util.List<java.lang.Number> y_s,
                                             Array a,
                                             java.util.List<java.lang.Number> X,
                                             java.util.List<java.lang.Number> Y,
                                             boolean centerPoint)

Interpolate with inside method - The grid cell value is the maximum value of the inside points or fill value if no inside point.

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

X - x coordinate

Y - y coordinate

centerPoint - points locate at center or border of grid

返回:

grid data

interpolation_Inside_Min

public static Array interpolation_Inside_Min(java.util.List<java.lang.Number> x_s,
                                             java.util.List<java.lang.Number> y_s,
                                             Array a,
                                             java.util.List<java.lang.Number> X,
                                             java.util.List<java.lang.Number> Y,
                                             boolean centerPoint)

Interpolate with inside method - The grid cell value is the minimum value of the inside points or fill value if no inside point.

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

X - x coordinate

Y - y coordinate

centerPoint - points locate at center or border of grid

返回:

grid data

interpolation_Inside_Count

public static java.lang.Object interpolation_Inside_Count(java.util.List<java.lang.Number> x_s,
                                                          java.util.List<java.lang.Number> y_s,
                                                          java.util.List<java.lang.Number> X,
                                                          java.util.List<java.lang.Number> Y,
                                                          boolean pointDensity,
                                                          boolean centerPoint)

Interpolate with inside method - The grid cell value is the count number of the inside points or fill value if no inside point.

参数:

x_s - scatter X array

y_s - scatter Y array

X - x coordinate

Y - y coordinate

pointDensity - If return point density value

centerPoint - points locate at center or border of grid

返回:

grid data

interpolation_Nearest

public static Array interpolation_Nearest(java.util.List<java.lang.Number> x_s,
                                          java.util.List<java.lang.Number> y_s,
                                          Array a,
                                          java.util.List<java.lang.Number> X,
                                          java.util.List<java.lang.Number> Y,
                                          double radius)

Interpolate with nearest method

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

X - x coordinate

Y - y coordinate

radius - Radius

返回:

grid data

interpolation_Nearest

public static Array interpolation_Nearest(Array x_s,
                                          Array y_s,
                                          Array a,
                                          Array X,
                                          Array Y,
                                          double radius)

Interpolate with nearest method

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

X - x coordinate

Y - y coordinate

radius - Radius

返回:

grid data

interpolation_Surface

public static Array interpolation_Surface(Array x_s,
                                          Array y_s,
                                          Array a,
                                          Array X,
                                          Array Y)

Interpolate with surface method

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

X - x coordinate

Y - y coordinate

返回:

grid data

interpolation_IDW_Radius

public static Array interpolation_IDW_Radius(java.util.List<java.lang.Number> x_s,
                                             java.util.List<java.lang.Number> y_s,
                                             Array a,
                                             java.util.List<java.lang.Number> X,
                                             java.util.List<java.lang.Number> Y,
                                             int neededPointNum,
                                             double radius)

Interpolation with IDW radius method

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

X - grid X array

Y - grid Y array

neededPointNum - needed at least point number

radius - search radius

返回:

interpolated grid data

interpolation_IDW_Neighbor

public static Array interpolation_IDW_Neighbor(java.util.List<java.lang.Number> x_s,
                                               java.util.List<java.lang.Number> y_s,
                                               Array a,
                                               java.util.List<java.lang.Number> X,
                                               java.util.List<java.lang.Number> Y,
                                               java.lang.Integer points)

Interpolation with IDW neighbor method

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

X - grid X array

Y - grid Y array

points - Number of points used for interpolation

返回:

interpolated grid data