GRASS 8 Programmer's Manual 8.6.0dev(2026)-5f4f7ad06c
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Functions
InterpSpline.c File Reference
#include <stdio.h>
#include <stdlib.h>
#include <float.h>
#include <math.h>
#include <string.h>
#include <grass/lidar.h>
Include dependency graph for InterpSpline.c:

Go to the source code of this file.

Functions

void node_x (double x, int *i_x, double *csi_x, double xMin, double deltaX)
 
void node_y (double y, int *i_y, double *csi_y, double yMin, double deltaY)
 
int order (int i_x, int i_y, int yNum)
 
double phi_3 (double csi)
 
double phi_4 (double csi)
 
double phi_33 (double csi_x, double csi_y)
 
double phi_34 (double csi_x, double csi_y)
 
double phi_43 (double csi_x, double csi_y)
 
double phi_44 (double csi_x, double csi_y)
 
double phi (double csi_x, double csi_y)
 
void normalDefBicubic (double **N, double *TN, double *Q, double **obsVect, double deltaX, double deltaY, int xNum, int yNum, double xMin, double yMin, int obsNum, int parNum, int BW)
 
void nCorrectLapl (double **N, double lambda, int xNum, int yNum, double deltaX, double deltaY)
 
void normalDefBilin (double **N, double *TN, double *Q, double **obsVect, double deltaX, double deltaY, int xNum, int yNum, double xMin, double yMin, int obsNum, int parNum, int BW)
 
void nCorrectGrad (double **N, double lambda, int xNum, int yNum, double deltaX, double deltaY)
 
void obsEstimateBicubic (double **obsV, double *obsE, double *parV, double deltX, double deltY, int xNm, int yNm, double xMi, double yMi, int obsN)
 
double dataInterpolateBicubic (double x, double y, double deltaX, double deltaY, int xNum, int yNum, double xMin, double yMin, double *parVect)
 
void obsEstimateBilin (double **obsV, double *obsE, double *parV, double deltX, double deltY, int xNm, int yNm, double xMi, double yMi, int obsN)
 
double dataInterpolateBilin (double x, double y, double deltaX, double deltaY, int xNum, int yNum, double xMin, double yMin, double *parVect)
 

Function Documentation

◆ dataInterpolateBicubic()

double dataInterpolateBicubic ( double  x,
double  y,
double  deltaX,
double  deltaY,
int  xNum,
int  yNum,
double  xMin,
double  yMin,
double *  parVect 
)

Definition at line 497 of file InterpSpline.c.

References node_x(), node_y(), order(), phi_33(), phi_34(), phi_43(), phi_44(), and x.

Referenced by P_Regular_Points(), and P_Sparse_Points().

◆ dataInterpolateBilin()

double dataInterpolateBilin ( double  x,
double  y,
double  deltaX,
double  deltaY,
int  xNum,
int  yNum,
double  xMin,
double  yMin,
double *  parVect 
)

Definition at line 604 of file InterpSpline.c.

References node_x(), node_y(), order(), phi(), and x.

Referenced by P_Regular_Points(), and P_Sparse_Points().

◆ nCorrectGrad()

void nCorrectGrad ( double **  N,
double  lambda,
int  xNum,
int  yNum,
double  deltaX,
double  deltaY 
)

Definition at line 399 of file InterpSpline.c.

References N.

◆ nCorrectLapl()

void nCorrectLapl ( double **  N,
double  lambda,
int  xNum,
int  yNum,
double  deltaX,
double  deltaY 
)

Definition at line 199 of file InterpSpline.c.

References N, and order().

◆ node_x()

void node_x ( double  x,
int *  i_x,
double *  csi_x,
double  xMin,
double  deltaX 
)

Definition at line 29 of file InterpSpline.c.

References x.

Referenced by dataInterpolateBicubic(), dataInterpolateBilin(), normalDefBicubic(), normalDefBilin(), obsEstimateBicubic(), and obsEstimateBilin().

◆ node_y()

void node_y ( double  y,
int *  i_y,
double *  csi_y,
double  yMin,
double  deltaY 
)

Definition at line 41 of file InterpSpline.c.

Referenced by dataInterpolateBicubic(), dataInterpolateBilin(), normalDefBicubic(), normalDefBilin(), obsEstimateBicubic(), and obsEstimateBilin().

◆ normalDefBicubic()

void normalDefBicubic ( double **  N,
double *  TN,
double *  Q,
double **  obsVect,
double  deltaX,
double  deltaY,
int  xNum,
int  yNum,
double  xMin,
double  yMin,
int  obsNum,
int  parNum,
int  BW 
)

Definition at line 107 of file InterpSpline.c.

References N, node_x(), node_y(), order(), phi_33(), phi_34(), phi_43(), and phi_44().

◆ normalDefBilin()

void normalDefBilin ( double **  N,
double *  TN,
double *  Q,
double **  obsVect,
double  deltaX,
double  deltaY,
int  xNum,
int  yNum,
double  xMin,
double  yMin,
int  obsNum,
int  parNum,
int  BW 
)

Definition at line 291 of file InterpSpline.c.

References N, node_x(), node_y(), order(), and phi().

◆ obsEstimateBicubic()

void obsEstimateBicubic ( double **  obsV,
double *  obsE,
double *  parV,
double  deltX,
double  deltY,
int  xNm,
int  yNm,
double  xMi,
double  yMi,
int  obsN 
)

Definition at line 434 of file InterpSpline.c.

References node_x(), node_y(), order(), phi_33(), phi_34(), phi_43(), and phi_44().

◆ obsEstimateBilin()

void obsEstimateBilin ( double **  obsV,
double *  obsE,
double *  parV,
double  deltX,
double  deltY,
int  xNm,
int  yNm,
double  xMi,
double  yMi,
int  obsN 
)

Definition at line 556 of file InterpSpline.c.

References node_x(), node_y(), order(), and phi().

◆ order()

int order ( int  i_x,
int  i_y,
int  yNum 
)

Definition at line 53 of file InterpSpline.c.

Referenced by dataInterpolateBicubic(), dataInterpolateBilin(), I_compute_georef_equations(), I_georef(), nCorrectLapl(), NetA_strongly_connected_components(), normalDefBicubic(), normalDefBilin(), obsEstimateBicubic(), and obsEstimateBilin().

◆ phi()

double phi ( double  csi_x,
double  csi_y 
)

Definition at line 98 of file InterpSpline.c.

Referenced by dataInterpolateBilin(), normalDefBilin(), and obsEstimateBilin().

◆ phi_3()

double phi_3 ( double  csi)

Definition at line 62 of file InterpSpline.c.

Referenced by phi_33(), phi_34(), and phi_43().

◆ phi_33()

double phi_33 ( double  csi_x,
double  csi_y 
)

Definition at line 74 of file InterpSpline.c.

References phi_3().

Referenced by dataInterpolateBicubic(), normalDefBicubic(), and obsEstimateBicubic().

◆ phi_34()

double phi_34 ( double  csi_x,
double  csi_y 
)

Definition at line 80 of file InterpSpline.c.

References phi_3(), and phi_4().

Referenced by dataInterpolateBicubic(), normalDefBicubic(), and obsEstimateBicubic().

◆ phi_4()

double phi_4 ( double  csi)

Definition at line 68 of file InterpSpline.c.

Referenced by phi_34(), phi_43(), and phi_44().

◆ phi_43()

double phi_43 ( double  csi_x,
double  csi_y 
)

Definition at line 86 of file InterpSpline.c.

References phi_3(), and phi_4().

Referenced by dataInterpolateBicubic(), normalDefBicubic(), and obsEstimateBicubic().

◆ phi_44()

double phi_44 ( double  csi_x,
double  csi_y 
)

Definition at line 92 of file InterpSpline.c.

References phi_4().

Referenced by dataInterpolateBicubic(), normalDefBicubic(), and obsEstimateBicubic().