init2d.c

Go to the documentation of this file.

/*!
 * \file init2d.c
 *
 * \brief Initialization of interpolation library data structures
 *
 * \author H. Mitasova, I. Kosinovsky, D. Gerdes Fall 1993 (original authors)
 * \author modified by McCauley in August 1995
 * \author modified by Mitasova in August 1995
 * \author modified by Brown in June 1999 - added elatt & smatt
 *
 * SPDX-FileCopyrightText: 1993-1999 Helena Mitasova
 * SPDX-FileCopyrightText: GRASS Development Team
 * SPDX-License-Identifier: GPL-2.0-or-later
 *
 */
 
#include <stdbool.h>
#include <stdio.h>
#include <math.h>
#include <unistd.h>
#include <grass/gis.h>
#include <grass/interpf.h>
 
/*! Initializes parameters used by the library */
void IL_init_params_2d(
    struct interp_params *params, FILE *inp, /*!< input stream */
    int elatt, /*!< which fp att in sites file? 1 = first */
    int smatt, /*!< which fp att in sites file to use for
                * smoothing? (if zero use sm) 1 = first */
    double zm, /*!< multiplier for z-values */
    int k1,    /*!< min number of points per segment for interpolation */
    int k2,    /*!< max number of points per segment */
    char *msk, /*!< name of mask */
    int rows, int cols, /*!< number of rows and columns */
    DCELL *ar1, DCELL *ar2, DCELL *ar3, DCELL *ar4, DCELL *ar5,
    DCELL *ar6,                /*!< arrays for interpolated values (ar1-ar6) */
    double tension,            /*!< tension */
    int k3,                    /*!< max number of points for interpolation */
    int sc1, int sc2, int sc3, /*!< multipliers for interpolation values */
    double sm,                 /*!< smoothing */
    char *f1, char *f2, char *f3, char *f4, char *f5,
    char *f6,    /*!< output files (f1-f6) */
    double dm,   /*!< min distance between points */
    double x_or, /*!< x of origin */
    double y_or, /*!< y of origin */
    int der,     /*!< 1 if compute partial derivatives */
    double tet,  /*!< anisotropy angle (0 is East, counter-clockwise) */
    double scl,  /*!< anisotropy scaling factor */
    FILE *t1, FILE *t2, FILE *t3, FILE *t4, FILE *t5,
    FILE *t6,         /*!< temp files for writing interp. values (t1-t6) */
    bool create_devi, /*!< create deviations file? */
    struct TimeStamp *ts, int c, /*!< cross validation */
    const char *wheresql         /*!< SQL WHERE statement */
)
{
    params->fdinp = inp;
    params->elatt = elatt;
    params->smatt = smatt;
    params->zmult = zm;
    params->kmin = k1;
    params->kmax = k2;
    params->maskmap = msk;
    params->nsizr = rows;
    params->nsizc = cols;
    params->az = ar1;
    params->adx = ar2;
    params->ady = ar3;
    params->adxx = ar4;
    params->adyy = ar5;
    params->adxy = ar6;
    params->fi = tension;
    params->KMAX2 = k3;
    params->scik1 = sc1;
    params->scik2 = sc2;
    params->scik3 = sc3;
    params->rsm = sm;
    params->elev = f1;
    params->slope = f2;
    params->aspect = f3;
    params->pcurv = f4;
    params->tcurv = f5;
    params->mcurv = f6;
    params->dmin = dm;
    params->x_orig = x_or;
    params->y_orig = y_or;
    params->deriv = der;
    params->theta = tet;
    params->scalex = scl;
    params->Tmp_fd_z = t1;
    params->Tmp_fd_dx = t2;
    params->Tmp_fd_dy = t3;
    params->Tmp_fd_xx = t4;
    params->Tmp_fd_yy = t5;
    params->Tmp_fd_xy = t6;
    params->create_devi = create_devi;
    params->ts = ts;
    params->cv = c;
    params->wheresql = wheresql;
}
 
/*! Initializes functions used by the library  */
void IL_init_func_2d(
    struct interp_params *params,
    grid_calc_fn *grid_f,      /*!< calculates grid for given segment */
    matrix_create_fn *matr_f,  /*!< creates matrix for a given segment */
    check_points_fn *point_f,  /*!< checks interpolation function at points */
    secpar_fn *secp_f,         /*!< calculates aspect, slope, curvature */
    interp_fn *interp_f,       /*!< radial basis function */
    interpder_fn *interpder_f, /*!< derivatives of radial basis function */
    wr_temp_fn *temp_f         /*!< writes temp files */
)
{
    params->grid_calc = grid_f;
    params->matrix_create = matr_f;
    params->check_points = point_f;
    params->secpar = secp_f;
    params->interp = interp_f;
    params->interpder = interpder_f;
    params->wr_temp = temp_f;
}