DbHelper.cpp File Reference

#include "geoslib_old_f.h"
#include "Db/DbHelper.hpp"
#include "Db/Db.hpp"
#include "Db/DbGrid.hpp"
#include "Skin/Skin.hpp"
#include "Basic/Law.hpp"
#include "Basic/Memory.hpp"
#include "Core/Keypair.hpp"

Classes
class	LocalSkin

Macros
#define	R(i, j)   (R[(i) * n + (j)])

Functions
static int	st_code_comparable (const Db *db1, const Db *db2, int iech, int jech, int opt_code, int tolcode)
static void	st_grid_fill_neigh (int ipos, int ndim, int radius, int *nech_loc, int *tabind, double *tabval)
static int	st_grid_fill_calculate (int ipos, int mode, int nech, int *tabind, const double *tabval)
static void	st_write_active_sample (Db *db, int iech, int nvar, int *iatt, double *tab)
static int	st_read_active_sample (Db *db, int flag_zero, int iech, int nvar, int *iatt, double eps, double *tab)
static int	st_find_interval (double x, int ndef, const double *X)
static void	st_grid1D_interpolate_linear (Db *dbgrid, int ivar, int ndef, const double *X, const double *Y)
static int	st_grid1D_interpolate_spline (Db *dbgrid, int ivar, int ndef, const double *X, const double *Y)

Variables
static DbGrid *	DB_GRID_FILL

Macro Definition Documentation

R

#define R	(		i,
			j
	)		(R[(i) * n + (j)])

Function Documentation

st_code_comparable()

static int st_code_comparable ( const Db *  db1, const Db *  db2, int  iech, int  jech, int  opt_code, int  tolcode  )

static

Check if a pair must be kept according to code criterion

Returns

1 if the codes are not comparable

Parameters

[in]	db1	First Db structure
[in]	db2	Second Db structure
[in]	iech	Rank of the first sample
[in]	jech	Rank of the second sample
[in]	opt_code	code selection option 0 : no use of the code selection 1 : codes must be close enough 2 : codes must be different
[in]	tolcode	Code tolerance

Remarks

When used in variogram calculation, pairs are discarded then the

resulting value is 1.

st_find_interval()

static int st_find_interval ( double  x, int  ndef, const double *  X  )

static

Find the interval (among vector X) to which the sample (x) belongs

Returns

Rank of the interval containing the target

Parameters

[in]	x	Target coordinate
[in]	ndef	Number of defined samples
[in]	X	Vector of coordinate of valued samples

Remarks

If x < min(X) or x > max(X) the returned index is -1

Array X is assumed to be increasingly ordered

st_grid1D_interpolate_linear()

static void st_grid1D_interpolate_linear ( Db *  dbgrid, int  ivar, int  ndef, const double *  X, const double *  Y  )

static

Fill an incomplete 1-D grid by linear interpolation from a set of valued samples

Parameters

[in]	dbgrid	Db grid structure
[in]	ivar	Rank of the variable to be filled
[in]	ndef	Number of defined samples
[in]	X	Vector of coordinate of valued samples
[in]	Y	Vector of values of valued samples

st_grid1D_interpolate_spline()

static int st_grid1D_interpolate_spline ( Db *  dbgrid, int  ivar, int  ndef, const double *  X, const double *  Y  )

static

Fill an incomplete 1-D grid by spline interpolation from a set of valued samples

Returns

Error returned code

Parameters

[in]	dbgrid	Db grid structure
[in]	ivar	Rank of the variable to be filled
[in]	ndef	Number of defined samples
[in]	X	Vector of coordinate of valued samples
[in]	Y	Vector of values of valued samples

st_grid_fill_calculate()

static int st_grid_fill_calculate ( int  ipos, int  mode, int  nech, int *  tabind, const double *  tabval  )

static

Calculate the extrapolation

Returns

Error return code

Parameters

[in]	ipos	Absolute grid index of the input grid node
[in]	mode	Type of interpolation 0 : Moving average 1 : Inverse squared distance 2 : Interpolation by a linear plane 3 : Distance to the initial grains
[in]	nech	Number of samples in the neighborhood
[in]	tabind	Index of the neighboring sample
[in]	tabval	Value of the neighboring sample

st_grid_fill_neigh()

static void st_grid_fill_neigh ( int  ipos, int  ndim, int  radius, int *  nech_loc, int *  tabind, double *  tabval  )

static

Find the neighborhood of the current cell

Parameters

[in]	ipos	Absolute grid index of the input grid node
[in]	ndim	Space dimension
[in]	radius	Radius of the neighborhood
[out]	nech_loc	Number of samples in the neighborhood
[out]	tabind	Index of the neighboring sample
[out]	tabval	Value of the neighboring sample

st_read_active_sample()

static int st_read_active_sample ( Db *  db, int  flag_zero, int  iech, int  nvar, int *  iatt, double  eps, double *  tab  )

static

Check if a sample must be kept or not

Returns

1 if the sample must be kept

Parameters

[in]	db	Db characteristics
[in]	flag_zero	1 to forbid zero values
[in]	iech	Rank of the sample
[in]	nvar	Number of attributes
[in]	iatt	Array of the input attribute
[in]	eps	Minimum value assigned to a zero
[out]	tab	Array of values

st_write_active_sample()

static void st_write_active_sample ( Db *  db, int  iech, int  nvar, int *  iatt, double *  tab  )

static

Write a sample in the output file

Parameters

[in]	db	Db characteristics
[in]	iech	Rank of the sample
[in]	nvar	Number of attributes
[in]	iatt	Array of the output attribute
[in]	tab	Array of values

Variable Documentation

DB_GRID_FILL

DbGrid* DB_GRID_FILL

static