예제 #1
0
unsigned char *code_table_3_20_location(unsigned char **sec) {
    int grid_def;
    grid_def = code_table_3_1(sec);
    if (grid_def == 1000) return sec[3]+59;
    if (grid_def == 1100) return sec[3]+59;
    return NULL;
}
예제 #2
0
int code_table_3_21(unsigned char **sec) {
    int grid_def;
    grid_def = code_table_3_1(sec);
    if (grid_def == 1000)  return sec[3][63];
    if (grid_def == 1200)  return sec[3][39];
    return -1;
}
예제 #3
0
int grid_id(GRID_ID_ARGS) {

    int gdt, res, scan, nx, ny, n;
    unsigned int npnts;

    if (axes_earth(sec, r_major, r_minor)) fatal_error("grid_id: axes undefined","");

    gdt = code_table_3_1(sec);
    switch (gdt) {
	case 0: *proj_id = p_latlon; break;
	case 1: *proj_id = p_rotated_latlon; break;
	case 10: *proj_id = p_mercator; break;
	case 20: *proj_id = p_polar_stereographic; break;
	case 30: *proj_id = p_lambert_conic; break;
	default: *proj_id = p_unknown; break;
    }

    /* get nx, ny n */
    get_nxny(sec, &nx, &ny, &npnts, &res, &scan);
    n = (int) npnts;

    grid_defn->nx = nx;
    grid_defn->ny = ny;
    grid_defn->n = npnts;

    /* get xy_list */
    grid_defn->valid_xy_list = 0;



    return 0;
}
예제 #4
0
파일: geo.c 프로젝트: mmase/wgrib2
int closest(unsigned char **sec, double plat, double plon) {

    int i, nnpts;
    int grid_type, j;
    double t, xx, yy, zz, small;

    if (use_gctpc && output_order == wesn && nx > 0 && ny > 0) {
	if (gctpc_ll2i(1, &plon, &plat, &j) == 0) return j;
    }

    grid_type = code_table_3_1(sec);
    // if grid with (lat,lon) -> (i,j) /l.. insert code here
    if (grid_type == 0 && nx > 0 && ny > 0 && output_order == wesn) return latlon_closest(sec, plat, plon);
    if (grid_type == 90 && nx > 0 && ny > 0 && output_order == wesn) return space_view_closest(sec, plat, plon);

    nnpts = (int) GB2_Sec3_npts(sec);
    if (x == NULL || nnpts <= 0) return -1;

    zz = sin(plat * (M_PI / 180.0));
    t = sqrt(1.0 - zz*zz);
    xx = t * cos(plon * (M_PI / 180.0));
    yy = t * sin(plon * (M_PI / 180.0));

    small = 0.0;
    j = -1;
#pragma omp parallel private(i,t)
{
    double t_thread, small_thread;
    int j_thread;
    small_thread = 0.0;
    j_thread = -1;
   
#pragma omp for schedule(static) nowait
    for (i = 0; i < nnpts; i++) {
	if (x[i] >= 999.0) continue;
        t_thread = (x[i]-xx)*(x[i]-xx)+(y[i]-yy)*(y[i]-yy)+(z[i]-zz)*(z[i]-zz);
	if (j_thread == -1 || t_thread < small_thread) {
            small_thread = t_thread;
            j_thread = i;
        }
    }

#pragma omp critical
    {
	if (j == -1 || small_thread < small) {
            small = small_thread;
            j = j_thread;
        }
    }

}

    return j;
}
예제 #5
0
파일: Cyclic.c 프로젝트: erget/wgrib2
int cyclic(unsigned char **sec) {
    int grid_template, nx, ny, res, scan, flag_3_3, no_dx, basic_ang, sub_ang;
    unsigned int npnts;
    unsigned char *gds;
    double dlon, units, lon1, lon2;

    get_nxny(sec, &nx, &ny, &npnts, &res, &scan);
    if (GDS_Scan_staggered(scan)) return 0;
    if (nx <= 1 || ny <= 0) return 0;

    grid_template = code_table_3_1(sec);
    gds = sec[3];

    flag_3_3 = flag_table_3_3(sec);
    no_dx =  0;
    if (flag_3_3 != -1) {
        if ((flag_3_3 & 0x20) == 0) no_dx = 1;
    }
    if (no_dx) return 0;

    if (grid_template == 0) {

        basic_ang = GDS_LatLon_basic_ang(gds);
        sub_ang = GDS_LatLon_sub_ang(gds);
        units = basic_ang == 0 ?  0.000001 : (double) basic_ang / (double) sub_ang;

	/* dlon has to be defined */
        dlon = units * GDS_LatLon_dlon(gds);
	return (fabs(nx*dlon-360.0) < ERROR);
    }
    if (grid_template == 10) {
	if (output_order != wesn) return 0;		// only works with we:sn order
	lon1 = GDS_Mercator_lon1(gds);
	lon2 = GDS_Mercator_lon2(gds);
	if (lon2 < lon1) lon2 += 360.0;
	dlon = (lon2-lon1)*nx/(nx-1.0);
        return (fabs(dlon-360.0) < ERROR);
    }

    if (grid_template == 40) {

        basic_ang = GDS_Gaussian_basic_ang(gds);
        sub_ang = GDS_Gaussian_sub_ang(gds);
        units = basic_ang == 0 ?  0.000001 : (double) basic_ang / (double) sub_ang;

	/* dlon has to be defined */
        dlon = units * GDS_Gaussian_dlon(gds);
        return (fabs(nx*dlon-360.0) < ERROR);
    }


    return 0;
}
예제 #6
0
int f_code_table_3_1(ARG0) {
    const char *string;
    int val;
    if (mode >= 0) {
        val = code_table_3_1(sec);
	string = NULL;
	switch(val) {
#include "CodeTable_3.1.dat"
	}
	if (string == NULL) sprintf(inv_out,"code table 3.1=%d", val);
	else sprintf(inv_out,"code table 3.1=%d %s", val, string);
    }
    return 0;
}
예제 #7
0
파일: geo.c 프로젝트: mmase/wgrib2
int closest_init(unsigned char **sec) {

    int i, nnpts;
    double s, c;
    int grid_type;


    if (use_gctpc && output_order == wesn && nx > 0 && ny > 0) {
       if (gctpc_ll2xy_init(sec, lon, lat) == 0) return 0;
    }

    grid_type = code_table_3_1(sec);

    if  (!GDS_Scan_staggered(scan) && nx > 0 && ny > 0) {
        /* if grids with (lat,lon) -> (i,j) insert code here */
        if (grid_type == 0 && output_order == wesn) return latlon_init(sec, nx, ny);
        if (grid_type == 90 && output_order == wesn) return space_view_init(sec);
    }

    nnpts = (int) GB2_Sec3_npts(sec);
    if (x) {
        free(x);
        free(y);
        free(z);
        x = y = z = NULL;
    }
    if (lat && lon) {
        x = (double *) malloc(nnpts * sizeof(double));
        y = (double *) malloc(nnpts * sizeof(double));
        z = (double *) malloc(nnpts * sizeof(double));
        if (x == NULL || y == NULL || z == NULL) fatal_error("memory allocation closest_init","");

#pragma omp parallel for private(i,s,c) schedule(static)
        for (i = 0; i < nnpts; i++) {
	    if (lat[i] >= 999.0 || lon[i] >= 999.0) {
		/* x[i] = sin() .. cannot be bigger than 1 */
		x[i] = y[i] = z[i] = 999.0;
	    }
            else {
                s = sin(lat[i] * (M_PI / 180.0));
                c = sqrt(1.0 - s * s);
                z[i] = s;
                x[i] = c * cos(lon[i] * (M_PI / 180.0));
                y[i] = c * sin(lon[i] * (M_PI / 180.0));
	    }
        }

    }
    return 0;
}
예제 #8
0
int cyclic(unsigned char **sec) {
    int grid_template, nx, ny, res, scan, flag_3_3, no_dx, basic_ang, sub_ang;
    unsigned int npnts;
    unsigned char *gds;
    double dlon, units;

    get_nxny(sec, &nx, &ny, &npnts, &res, &scan);
    if ((unsigned) (nx * ny) != npnts) return 0;
    if (nx <= 0 || ny <= 0) return 0;

    grid_template = code_table_3_1(sec);
    gds = sec[3];

    flag_3_3 = flag_table_3_3(sec);
    no_dx =  0;
    if (flag_3_3 != -1) {
        if ((flag_3_3 & 0x20) == 0) no_dx = 1;
    }

    if (grid_template == 0) {

        basic_ang = GDS_LatLon_basic_ang(gds);
        sub_ang = GDS_LatLon_sub_ang(gds);
        units = basic_ang == 0 ?  0.000001 : (double) basic_ang / (double) sub_ang;

        dlon = units * GDS_LatLon_dlon(gds);
        if (no_dx) dlon = 0.0;

	dlon = nx * dlon;
	return (fabs(dlon-360.0) < ERROR);
    }

    if (grid_template == 10) {
        dlon = GDS_Mercator_dx(gds);
        if (no_dx) dlon = 0.0;
	dlon = nx * dlon;
	return (fabs(dlon-360.0) < ERROR);
    }

// need to add gaussian grid - a bit more complicated

    return 0;
}
예제 #9
0
unsigned char *flag_table_3_3_location(unsigned char **sec) {
    int grid_template;
    unsigned char *gds;

    grid_template = code_table_3_1(sec);
    gds = sec[3];
    switch (grid_template) {
        case 0:
        case 1:
        case 2:
        case 3:
        case 40:
        case 41:
        case 42:
        case 43:
	case 140:
        case 204:
              return gds+54; break;
        case 4:
        case 5:
        case 10:
        case 12:
        case 20:
        case 30:
        case 31:
        case 90:
        case 110:
              return gds+46; break;
	case 32768:
		if (GB2_Center(sec) == NCEP) return gds+54;
		return NULL;
	case 32769:
		if (GB2_Center(sec) == NCEP) return gds+54;
		return NULL;

		break;
        default: return NULL; break;
    }
    return NULL;
}
예제 #10
0
unsigned char *code_table_3_2_location(unsigned char **sec) {
    int grid_def;
    grid_def = code_table_3_1(sec);

    if (grid_def < 50) return sec[3]+14;

    switch (grid_def) {
        case 90:
        case 110:
        case 130:
        case 140:
        case 204:
        case 1000:
        case 1100:
            return sec[3]+14; break;
        default: break;
    }

    if (GB2_Center(sec) == NCEP) {
        if (grid_def == 32768 || (grid_def == 32769)) return sec[3]+14;
    }

    return  NULL;
}
예제 #11
0
파일: AAIGlong.c 프로젝트: erget/wgrib2
int f_AAIGlong(ARG0) {

    size_t i, j;
    double cellsize, dlon, dlat;
    char file[STRING_SIZE], name[STRING_SIZE];
    FILE *out;

    if (mode == -1) {
        decode = latlon = 1;
        return 0;
    }
    if (mode < 0) return 0;

    if (lat == NULL || lon == NULL) {
        fprintf(stderr,"AAIGlong does nothing, no lat-lon information\n");
        return 0;
    }
    if (output_order != wesn) {
        fprintf(stderr,"AAIGlong does nothing, not in we:sn order\n");
        return 0;
    }
    if (code_table_3_1(sec) != 0) {	// check grid template
        fprintf(stderr,"AAIGlong does nothing, not lat-lon grid\n");
        return 0;
    }
    if (nx_ == 0 || ny_ == 0) {
        fprintf(stderr,"AAIGlong does nothing, found thinned lat-lon grid\n");
        return 0;
    }

    cellsize = dlon = lon[1] - lon[0];
    dlat = lat[nx_] - lat[0];
    if ( fabs(dlat - dlon) > 0.0001*dlon) cellsize = 0.0;

    f_S(call_ARG0(name,NULL));
    name[STRING_SIZE-1] = 0;

    /* get rid of trailing semicolon */
    i = strlen(name);
    if (name[i-1] == ':') name[i-1] = 0;

    /* get rid of bad characters for a filename */

    j = i = 0;
    while (name[i]) {
	if (name[i] == '/') {
	    file[j++] = ' ';
	    file[j++] = 'D';
	    file[j++] = 'I';
	    file[j++] = 'V';
	    file[j++] = ' ';
	}
	else if (name[i] == '\\') {
	    file[j++] = ' ';
	    file[j++] = 'B';
	    file[j++] = 'S';
	    file[j++] = ' ';
	}
	else if (name[i] == ':') {
	    file[j++] = '_';
	}
	else if (name[i] == '"' || name[i] == '\'') {
	    file[j++] = ' ';
	    file[j++] = 'Q';
	    file[j++] = ' ';
	}
	else file[j++] = name[i];
	i++;
    }
    file[j++] = '.';
    file[j++] = 'a';
    file[j++] = 's';
    file[j++] = 'c';
    file[j] = 0;

    if ((out = ffopen(file,"w")) == NULL) {
        fprintf(stderr,"AAIG could not open raster file %s\n",file);
        return 0;
    }

    fprintf(stderr, "raster file: %s\n", file);

    fprintf(out,"ncols %u\n", nx_);
    fprintf(out,"nrows %u\n", ny_);
    fprintf(out,"xllcenter %lf\n", lon[0] > 180.0 ? lon[0]-360.0 : lon[0]);
    fprintf(out,"yllcenter %lf\n", lat[0]);
    if (cellsize > 0.0) {
      fprintf(out,"cellsize %lf\n", cellsize);
    }
    else {
      fprintf(out,"dx       %lf\n", dlon);
      fprintf(out,"dy       %lf\n", dlat);
    }
    fprintf(out,"NODATA_VALUE 9.999e20\n");
    for (j = 0; j < ny_; j++) {
	for (i = 0; i < nx_; i++) {
	    fprintf(out,"%f\n", data[i+(ny_ - 1 - j)*nx_]);
	}
    }
    ffclose(out);
    return 0;
}
예제 #12
0
int proj4_initialize(unsigned char **sec, struct proj4_struct *projection) {

    unsigned int gdt;
    unsigned char *gds;
    int has_np;
    double r_maj, r_min, c_lon, c_lat, x_0, y_0, lat1, lon1;
    double latsp1, latsp2;
    char proj4_def[1000];

    gdt = code_table_3_1(sec);
    gds = sec[3];

    axes_earth(sec, &r_maj, &r_min);
    projection->radius_minor = r_min;
    projection->radius_minor = r_min;

    if (gdt == 0) {
	projection->proj_is_nop = 1;
	projection->x_0 = projection->y_0 = projection->lat_0 = projection->lon_0 = 0.0;
	return 0;
    }

    projection->proj_is_nop = 0;

    sprintf(proj4_def,"+proj=latlong +a=%lf +b=%lf",r_maj, r_min);
    if ( (projection->pj_latlon = pj_init_plus(proj4_def)) == NULL) 
         fatal_error("proj4_initialize: pj_init_plus %s failed", proj4_def);

    if (gdt == 10 && (GDS_Mercator_ori_angle(gds) == 0.0) ) {            // mercator no rotation

	/* central point */
	c_lon = 0.0;
        c_lat = GDS_Mercator_latD(gds);

        sprintf(proj4_def,"+proj=merc +lat_ts=%lf +lat_0=0 +lon_0=0 +x_0=0 +y_0=0 +a=%lf +b=%lf",
            c_lat, r_maj, r_min);
        if ((projection->pj_grid = pj_init_plus(proj4_def)) == NULL) fatal_error("proj4_initialize: pj_init_plus %s failed", proj4_def);

        /* longitude, latitude of first grid point */
        projection->lat_0 = lat1 = GDS_Mercator_lat1(gds);
        projection->lon_0 = lon1 = GDS_Mercator_lon1(gds);

        x_0 = lon1 * DEG_TO_RAD;
        y_0 = lat1 * DEG_TO_RAD;

        if ( pj_transform(projection->pj_latlon, projection->pj_grid, 1, 1, &x_0, &y_0, NULL) != 0 ) 
		fatal_error("proj4_initialize: Proj4 transform to lat-lon","");

	projection->x_0 = x_0;
	projection->y_0 = y_0;
    }
    else if (gdt == 20) {            // polar stereographic

        /* central point */
        c_lon = GDS_Polar_lov(gds);
        c_lat = GDS_Polar_lad(gds);

        /* strange but np/sp flag is used by proj4 but not gctpc */
        has_np = ((flag_table_3_5(sec) & 128) == 0);

        sprintf(proj4_def,"+proj=stere +lat_ts=%lf +lat_0=%s +lon_0=%lf +k_0=1 +x_0=0 +y_0=0 +a=%lf +b=%lf",
                c_lat, has_np ? "90" : "-90", c_lon, r_maj,r_min);
        if ((projection->pj_grid = pj_init_plus(proj4_def)) == NULL) fatal_error("Proj4: pj_init_plus %s failed", proj4_def);

        /* longitude, latitude of first grid point */
        projection->lon_0 = lon1 = GDS_Polar_lon1(gds);
        projection->lat_0 = lat1 = GDS_Polar_lat1(gds);

        x_0 = lon1 * DEG_TO_RAD;
        y_0 = lat1 * DEG_TO_RAD;

        if ( pj_transform(projection->pj_latlon, projection->pj_grid, 1, 1, &x_0, &y_0, NULL) != 0 ) 
		fatal_error("proj4_init: Proj4 transform to lat-lon","");

        projection->x_0 = x_0;
        projection->y_0 = y_0;
    }
    else if (gdt == 30) {            // lambert conformal conic

        /* latitudes of tangent/intersection */
        latsp1 = GDS_Lambert_Latin1(gds);
        latsp2 = GDS_Lambert_Latin2(gds);

        /* central point */
        c_lon = GDS_Lambert_Lov(gds);
        c_lat = GDS_Lambert_LatD(gds);

        sprintf(proj4_def,"+proj=lcc +lon_0=%lf +lat_0=%lf +lat_1=%lf +lat_2=%lf +a=%lf +b=%lf",c_lon,
                   c_lat,latsp1,latsp2,r_maj,r_min);
        if ((projection->pj_grid = pj_init_plus(proj4_def)) == NULL) fatal_error("Proj4: pj_init_plus %s failed", proj4_def);

        /* longitude, latitude of first grid point */
        lon1 = GDS_Lambert_Lo1(gds);
        lat1 = GDS_Lambert_La1(gds);

        x_0 = lon1 * DEG_TO_RAD;
        y_0 = lat1 * DEG_TO_RAD;

        /* longitude, latitude of first grid point */
        projection->lon_0 = lon1 = GDS_Lambert_Lo1(gds);
        projection->lat_0 = lat1 = GDS_Lambert_La1(gds);

        x_0 = lon1 * DEG_TO_RAD;
        y_0 = lat1 * DEG_TO_RAD;
        if ( pj_transform(projection->pj_latlon, projection->pj_grid, 1, 1, &x_0, &y_0, NULL) != 0 ) 
		fatal_error("proj4_init: Proj4 transform to lat-lon","");
        projection->x_0 = x_0;
        projection->y_0 = y_0;
    }
    else {
	return 1;
    }
    return 0;
}
예제 #13
0
int gctpc_get_latlon(unsigned char **sec, double **lon, double **lat) {

    int gdt;
    unsigned char *gds;

    double r_maj;                           /* major axis                   */
    double r_min;                           /* minor axis                   */
    double lat1;                            /* first standard parallel      */
    double lat2;                            /* second standard parallel     */
    double c_lon;                           /* center longitude             */
    double c_lat;                           /* center latitude              */
    double false_east;                      /* x offset in meters           */
    double false_north;
    double dx, dy;
    double x0, y0;
    long int (*inv_fn)();
    double *llat, *llon, rlon, rlat;

    int i, nnx, nny, nres, nscan;
    unsigned int nnpnts;
    long long_i;

    gdt = code_table_3_1(sec);
    gds = sec[3];

    /* only process certain grids */

    if (gdt != 10 && gdt != 20 && gdt != 30 && gdt != 31) return 1;
    get_nxny(sec, &nnx, &nny, &nnpnts, &nres, &nscan);

    /* potentially staggered */
    if (nnx < 1 || nny < 1) return 1;

    llat = *lat;
    llon = *lon;

    if (llat != NULL) {
	free(llat);
	free(llon);
        *lat = *lon = llat = llon = NULL;
    }

    inv_fn = NULL;
    dx = dy = 0.0;

    if (gdt == 10) {            // mercator

       /* get earth axis */
       axes_earth(sec, &r_maj, &r_min);
       dy      = GDS_Mercator_dy(gds);
       dx      = GDS_Mercator_dx(gds);

       /* central point */
       c_lon = GDS_Mercator_ori_angle(gds) * (M_PI/180.0);
       c_lat = GDS_Mercator_latD(gds) * (M_PI/180.0);

       /* find the eastling and northing of of the 1st grid point */

       false_east = false_north = 0.0;
       long_i = merforint(r_maj,r_min,c_lon,c_lat,false_east,false_north);

       rlon   = GDS_Mercator_lon1(gds) * (M_PI/180.0);
       rlat   = GDS_Mercator_lat1(gds) * (M_PI/180.0);

       long_i = merfor(rlon, rlat, &x0, &y0);

       /* initialize for 1st grid point */
       x0 = -x0;
       y0 = -y0;
       long_i = merinvint(r_maj,r_min,c_lon,c_lat,x0,y0);
       inv_fn = &merinv;
    }

    else if (gdt == 20) {            // polar stereographic

       /* get earth axis */
       axes_earth(sec, &r_maj, &r_min);
       dy      = GDS_Polar_dy(gds);
       dx      = GDS_Polar_dx(gds);

       /* central point */
       c_lon = GDS_Polar_lov(gds) * (M_PI/180.0);
       c_lat = GDS_Polar_lad(gds) * (M_PI/180.0);

       /* find the eastling and northing of of the 1st grid point */

       false_east = false_north = 0.0;
       long_i = psforint(r_maj,r_min,c_lon,c_lat,false_east,false_north);

       rlon   = GDS_Polar_lon1(gds) * (M_PI/180.0);
       rlat   = GDS_Polar_lat1(gds) * (M_PI/180.0);

       long_i = psfor(rlon, rlat, &x0, &y0);

       /* initialize for 1st grid point */
       x0 = -x0;
       y0 = -y0;
       long_i = psinvint(r_maj,r_min,c_lon,c_lat,x0,y0);
       inv_fn = &psinv;
    }

    else if (gdt == 30) {            // lambert conformal conic

       /* get earth axis */
       axes_earth(sec, &r_maj, &r_min);
       dy      = GDS_Lambert_dy(gds);
       dx      = GDS_Lambert_dx(gds);
//printf(">>> gctpc dx %lf, dy %lf\n", dx, dy);
       /* latitudes of tangent/intersection */
       lat1 = GDS_Lambert_Latin1(gds) * (M_PI/180.0);
       lat2 = GDS_Lambert_Latin2(gds) * (M_PI/180.0);

       /* central point */
       c_lon = GDS_Lambert_Lov(gds) * (M_PI/180.0);
       c_lat = GDS_Lambert_LatD(gds) * (M_PI/180.0);

       /* find the eastling and northing of of the 1st grid point */

       false_east = false_north = 0.0;
       long_i = lamccforint(r_maj,r_min,lat1,lat2,c_lon,c_lat,false_east,false_north);

       rlon   = GDS_Lambert_Lo1(gds) * (M_PI/180.0);
       rlat   = GDS_Lambert_La1(gds) * (M_PI/180.0);

       long_i = lamccfor(rlon, rlat, &x0, &y0);

       /* initialize for 1st grid point */
       x0 = -x0;
       y0 = -y0;
       long_i = lamccinvint(r_maj,r_min,lat1,lat2,c_lon,c_lat,x0,y0);
       inv_fn = &lamccinv;
    }
    else if (gdt == 31) {			// albers equal area
       /* get earth axis */
       axes_earth(sec, &r_maj, &r_min);
       dy      = GDS_Albers_dy(gds);
       dx      = GDS_Albers_dx(gds);

       /* latitudes of tangent/intersection */
       lat1 = GDS_Albers_Latin1(gds) * (M_PI/180.0);
       lat2 = GDS_Albers_Latin2(gds) * (M_PI/180.0);

       /* central point */
       c_lon = GDS_Albers_Lov(gds) * (M_PI/180.0);
       c_lat = GDS_Albers_LatD(gds) * (M_PI/180.0);

       /* find the eastling and northing of of the 1st grid point */

       false_east = false_north = 0.0;
       long_i = alberforint(r_maj,r_min,lat1,lat2,c_lon,c_lat,false_east,false_north);

       rlon   = GDS_Albers_Lo1(gds) * (M_PI/180.0);
       rlat   = GDS_Albers_La1(gds) * (M_PI/180.0);

       long_i = alberfor(rlon, rlat, &x0, &y0);

       /* initialize for 1st grid point */
       x0 = -x0;
       y0 = -y0;
       long_i = alberinvint(r_maj,r_min,lat1,lat2,c_lon,c_lat,x0,y0);
       inv_fn = &alberinv;
    }
    

    if (inv_fn == NULL)  return 1;

    if ((*lat = llat = (double *) malloc(nnpnts * sizeof(double))) == NULL) {
        fatal_error("gctpc_get_latlon memory allocation failed","");
    }
    if ((*lon = llon = (double *) malloc(nnpnts * sizeof(double))) == NULL) {
        fatal_error("gctpc_get_latlon memory allocation failed","");
    }

    /* put x[] and y[] values in lon and lat */
    if (stagger(sec, nnpnts, llon, llat)) fatal_error("gctpc: stagger problem","");

    printf(">> stagger gctpc x00 %lf y00 %lf\n",llon[0], llat[0]);
#pragma omp parallel for schedule(static) private(i)
    for (i = 0; i < nnpnts; i++) {
        inv_fn(llon[i]*dx, llat[i]*dy, llon+i, llat+i);
	llat[i] *= (180.0 / M_PI);
	llon[i] *= (180.0 / M_PI);
	if (llon[i] < 0.0) llon[i] += 360.0;
    }
    return 0;
}
예제 #14
0
파일: Small_grib.c 프로젝트: mmase/wgrib2
int small_grib(unsigned char **sec, int mode, float *data, double *lon, double *lat, unsigned int ndata,
               int ix0, int ix1, int iy0, int iy1, FILE *out) {

    int can_subset, grid_template;
    int nx, ny, res, scan, new_nx, new_ny, i, j;
    unsigned int sec3_len, new_ndata, k, npnts;
    unsigned char *sec3, *new_sec[9];
    double units;
    int basic_ang, sub_ang, cyclic_grid;
    float *new_data;

    get_nxny(sec, &nx, &ny, &npnts, &res, &scan);        /* get nx, ny, and scan mode of grid */
    grid_template = code_table_3_1(sec);

    // make a copy of the gds (sec3)
    sec3_len = GB2_Sec3_size(sec);
    sec3 = (unsigned char *) malloc(sec3_len);
    for (k = 0; k < sec3_len; k++) sec3[k] = sec[3][k];

    // make a copy of the sec[] with new sec3
    new_sec[0] = sec[0];
    new_sec[1] = sec[1];
    new_sec[2] = sec[2];
    new_sec[3] = sec3;
    new_sec[4] = sec[4];
    new_sec[5] = sec[5];
    new_sec[6] = sec[6];
    new_sec[7] = sec[7];
//    new_sec[8] = sec[8];  not needed by writing routines

    can_subset = 1;
    if (lat == NULL || lon == NULL) can_subset = 0;
    new_nx = ix1-ix0+1;
    new_ny = iy1-iy0+1;
    if (new_nx <= 0) fatal_error("small_grib, new_nx is <= 0","");
    if (new_ny <= 0) fatal_error("small_grib, new_ny is <= 0","");
    new_ndata = new_nx * new_ny;
    cyclic_grid = 0;

    if (can_subset) {
        cyclic_grid = cyclic(sec);

        // lat-lon grid - no thinning
        if ((grid_template == 0 && sec3_len == 72) || (grid_template == 1 && sec3_len == 04)) {
            uint_char(new_nx,sec3+30);		// nx
            uint_char(new_ny,sec3+34);		// ny

            basic_ang = GDS_LatLon_basic_ang(sec3);
            sub_ang = GDS_LatLon_sub_ang(sec3);
            if (basic_ang != 0) {
                units = (double) basic_ang / (double) sub_ang;
            }
            else {
                units = 0.000001;
            }
            i = lat[ idx(ix0,iy0,nx,ny,cyclic_grid) ] / units;		// lat1
            int_char(i,sec3+46);
            i = lon[ idx(ix0,iy0,nx,ny,cyclic_grid) ] / units;		// lon1
            int_char(i,sec3+50);
            i = lat[ idx(ix1,iy1,nx,ny,cyclic_grid) ] / units;		// lat2
            int_char(i,sec3+55);
            i = lon[ idx(ix1,iy1,nx,ny,cyclic_grid) ] / units;		// lon2
            int_char(i,sec3+59);
        }

        else if ((grid_template == 40 && sec3_len == 72)) { // full Gaussian grid
            uint_char(new_nx,sec3+30);		// nx
            uint_char(new_ny,sec3+34);		// ny

            basic_ang = GDS_Gaussian_basic_ang(sec3);
            sub_ang = GDS_Gaussian_sub_ang(sec3);
            if (basic_ang != 0) {
                units = (double) basic_ang / (double) sub_ang;
            }
            else {
                units = 0.000001;
            }

            i = lat[ idx(ix0,iy0,nx,ny,cyclic_grid) ] / units;          // lat1
            int_char(i,sec3+46);
            i = lon[ idx(ix0,iy0,nx,ny,cyclic_grid) ] / units;          // lon1
            int_char(i,sec3+50);
            i = lat[ idx(ix1,iy1,nx,ny,cyclic_grid) ] / units;          // lat2
            int_char(i,sec3+55);
            i = lon[ idx(ix1,iy1,nx,ny,cyclic_grid) ] / units;          // lon2
            int_char(i,sec3+59);
        }

        // polar-stereo graphic, lambert conformal , no thinning
        else if ((grid_template == 20 && sec3_len == 65) || 		// polar stereographic
                 (grid_template == 30 && sec3_len == 81)) {	// lambert conformal
            uint_char(new_nx,sec3+30);		// nx
            uint_char(new_ny,sec3+34);		// ny

            i = (int) (lat[ idx(ix0,iy0,nx,ny,cyclic_grid) ] * 1000000.0);		// lat1
            int_char(i,sec3+38);
            i = (int) (lon[ idx(ix0,iy0,nx,ny,cyclic_grid) ] * 1000000.0);		// lon1
            int_char(i,sec3+42);
        }

        // mercator, no thinning
        else if (grid_template == 10 && sec3_len == 72) { 		// mercator

            uint_char(new_nx,sec3+30);		// nx
            uint_char(new_ny,sec3+34);		// ny

            units = 0.000001;
            i = lat[ idx(ix0,iy0,nx,ny,cyclic_grid) ] / units;		// lat1
            int_char(i,sec3+38);
            i = lon[ idx(ix0,iy0,nx,ny,cyclic_grid) ] / units;		// lon1
            int_char(i,sec3+42);
            i = lat[ idx(ix1,iy1,nx,ny,cyclic_grid) ] / units;		// lat2
            int_char(i,sec3+51);
            i = lon[ idx(ix1,iy1,nx,ny,cyclic_grid) ] / units;		// lon2
            int_char(i,sec3+55);
        }

        else {
            can_subset = 0;
        }
    }

    // copy data to a new array

    if (can_subset) {
        uint_char(new_ndata, sec3+6);
        new_data = (float *) malloc(new_ndata * sizeof(float));

        #pragma omp parallel for private(i,j,k)
        for(j = iy0; j <= iy1; j++) {
            k = (j-iy0)*(ix1-ix0+1);
            for(i = ix0; i <= ix1; i++) {
                new_data[(i-ix0) + k ] = data[ idx(i,j,nx,ny,cyclic_grid) ];
            }
        }
    }
    else {
        new_ndata = ndata;
        new_data = (float *) malloc(new_ndata * sizeof(float));
        for (k = 0; k < ndata; k++) new_data[k] = data[k];
        new_nx = nx;
        new_ny = ny;
    }

    set_order(new_sec, output_order);

    grib_wrt(new_sec, new_data, new_ndata, new_nx, new_ny, use_scale, dec_scale,
             bin_scale, wanted_bits, max_bits, grib_type, out);

    if (flush_mode) fflush(out);

    free(new_data);
    free(sec3);
    return 0;
}
예제 #15
0
int code_table_3_7(unsigned char **sec) {
    int grid_def;
    grid_def = code_table_3_1(sec);
    if (grid_def >= 50 && grid_def <= 53)  return GDS_Harmonic_code_3_7(sec[3]);
    return -1;
}
예제 #16
0
int main(int argc, char **argv) {
    FILE *in;
    unsigned char *msg, *sec[9];
    long int last_pos;
    struct stat stat_buf;  /* for type of grib input file */

    int file_arg, i, j, num_submsgs;
    int n_arg;
    unsigned int k, ndata;
    float *data;
    double *ddata, ref;

#ifdef USE_G2CLIB
    float missing_c_val_1, missing_c_val_2;
    g2int *bitmap, has_bitmap;
    g2float *g2_data;
    int ii;
#endif

    struct ARGLIST arglist[N_ARGLIST];
    int narglist = 0;
    const char *new_argv[N_ARGLIST];
    void *local[N_ARGLIST];
    int has_inv_option, last_submsg;
    int err, new_GDS, gdt, pdt, center;
    unsigned char dscale[2] = {0,0};

    inv_file = stdout;
//    jas_init();

//  gctpc initialiation
    init(-1,-1,"gctpc_1,txt", "gctpc_2.txt");

    data = NULL;
    ndata = 0;

    /* no arguments .. help screen */
    if (argc == 1) {
	// f_help(-1,NULL,NULL,0,inv_out,local,"most");
	mode = -1;
	data = NULL;
	ndata = 0;
	*inv_out = 0;
	f_h(call_ARG0(inv_out,NULL));
	fprintf(inv_file, "%s\n", inv_out);
	eof_bin(); eof_string();
	exit(8);
    }

    setup_user_gribtable();

    /* copy argv */

    for (i = 0; i < argc; i++) {
	new_argv[i] = argv[i];
    }

    /* scan for "inv" and input file */
    has_inv_option = 0;
    file_arg = 0;
    for (i = 1; i < argc; i++) {
	if (new_argv[i][0] != '-') {
	    /* must be filename */
            file_arg = i;
            continue;
        }
	/* must be an option */
	for (j = 0; j < nfunctions; j++) {
	    if (strcmp(&(new_argv[i][1]),functions[j].name) == 0) {
	        if (functions[j].type == inv) has_inv_option = 1;
		i += functions[j].nargs;
                break;
            }
        }
    }

    /* if no inv option, use default inventory .. put it at end */

    if (has_inv_option == 0) {
	for (i = 0; i < argc; i++) {
	    new_argv[i] = new_argv[i];
	}
	new_argv[argc++] = "-s";
    } 


    /* parse parameters */
    file_arg = 0;
    for (i = 1; i < argc; i++) {

	if (new_argv[i][0] != '-' || (strcmp(new_argv[i],"-") == 0) ) {
	    /* must be filename */
	    if (file_arg == 0) {
		file_arg = i;
		continue;
	    } else {
		fatal_error("too many grib files .. 2nd=%s", new_argv[i]);
	    }
	}

	/* must be an option */

	for (j = 0; j < nfunctions; j++) {
	    if (strcmp(&(new_argv[i][1]),functions[j].name) == 0) {
#ifdef DEBUG
		fprintf(stderr,"match .. -%s %d args\n",  functions[j].name, functions[j].nargs);
#endif
                /* add to function argument list */
		arglist[narglist].fn = j;
		arglist[narglist].i_argc = i+1;

	        if (functions[j].type == inv) has_inv_option = 1;

		i += functions[j].nargs;
		if (i >= argc) fatal_error("missing arguments option=%s",functions[j].name);
		narglist++;
		break;
	    }
	}

	if (j == nfunctions) {
	    fatal_error("unknown option %s", new_argv[i]);
	}
    }

    if (has_inv_option == 0) {
        fatal_error("missing arguments on last option","");
    }

    /* initialize options mode = -1 */

#ifdef DEBUG
    fprintf(stderr,"init options narglist %d\n",narglist);
#endif

    for (j = 0; j < narglist; j++) {
	inv_out[0] = 0;
	n_arg = functions[arglist[j].fn].nargs;
        err = 0;
        if (n_arg == 0) err = functions[arglist[j].fn].fn(-1,NULL,NULL,0, inv_out,local+j);
	else if (n_arg == 1) err = functions[arglist[j].fn].fn(-1,NULL,NULL,0, inv_out,local+j,
		new_argv[arglist[j].i_argc]);
	else if (n_arg == 2) err = functions[arglist[j].fn].fn(-1,NULL,NULL,0, inv_out,local+j,
		new_argv[arglist[j].i_argc],new_argv[arglist[j].i_argc+1]);
	else if (n_arg == 3) err = functions[arglist[j].fn].fn(-1,NULL,NULL,0, inv_out,local+j,
		new_argv[arglist[j].i_argc],new_argv[arglist[j].i_argc+1],new_argv[arglist[j].i_argc+2]);
	else if (n_arg == 4) err = functions[arglist[j].fn].fn(-1,NULL,NULL,0, inv_out,local+j,
		new_argv[arglist[j].i_argc],new_argv[arglist[j].i_argc+1],
		new_argv[arglist[j].i_argc+2], new_argv[arglist[j].i_argc+3]);
	else if (n_arg == 5) err = functions[arglist[j].fn].fn(-1,NULL,NULL,0, inv_out,local+j,
		new_argv[arglist[j].i_argc],new_argv[arglist[j].i_argc+1],
		new_argv[arglist[j].i_argc+2], new_argv[arglist[j].i_argc+3],
		new_argv[arglist[j].i_argc+4]);
	else if (n_arg == 6) err = functions[arglist[j].fn].fn(-1,NULL,NULL,0, inv_out,local+j,
		new_argv[arglist[j].i_argc],new_argv[arglist[j].i_argc+1],
		new_argv[arglist[j].i_argc+2], new_argv[arglist[j].i_argc+3],
		new_argv[arglist[j].i_argc+4], new_argv[arglist[j].i_argc+5]);
	else if (n_arg == 7) err = functions[arglist[j].fn].fn(-1,NULL,NULL,0, inv_out,local+j,
		new_argv[arglist[j].i_argc],new_argv[arglist[j].i_argc+1],
		new_argv[arglist[j].i_argc+2], new_argv[arglist[j].i_argc+3],
		new_argv[arglist[j].i_argc+4], new_argv[arglist[j].i_argc+5],
		new_argv[arglist[j].i_argc+6]);
	else if (n_arg == 8) err = functions[arglist[j].fn].fn(-1,NULL,NULL,0, inv_out,local+j,
		new_argv[arglist[j].i_argc],new_argv[arglist[j].i_argc+1],
		new_argv[arglist[j].i_argc+2], new_argv[arglist[j].i_argc+3],
		new_argv[arglist[j].i_argc+4], new_argv[arglist[j].i_argc+5],
		new_argv[arglist[j].i_argc+6], new_argv[arglist[j].i_argc+7]);

        if(inv_out[0] != 0)  fprintf(inv_file, "%s", inv_out);
        if (err) {
	    err_bin(); err_string();
	    exit(8);
	}
    }

    if (file_arg == 0 && argc > 1) fatal_error("no input file", "");
    if (latlon == 1 && output_order_wanted != wesn) 
           fatal_error("latitude-longitude information is only available with -order we:sn","");

    /* open input file */

    seq_input = 0;
    if (strcmp(new_argv[file_arg],"-") == 0) {
	seq_input = 1;
        in = stdin;
        if (mode == 98) fprintf(stderr, "grib input is stdin\n");
    }
    else { 
        if (stat(new_argv[file_arg], &stat_buf) != -1) {
	    if (S_ISREG(stat_buf.st_mode)) {
                if (mode == 98) fprintf(stderr, "grib input is a regular file\n");
	    }
	    else if (S_ISDIR(stat_buf.st_mode)) {
	        fatal_error("grib input is a directory: %s",new_argv[file_arg]);
	    }
	    else if (S_ISCHR(stat_buf.st_mode)) {
	        seq_input = 1;
                 if (mode == 98) fprintf(stderr, "grib input is a char device\n");
	    }
	    else if (S_ISBLK(stat_buf.st_mode)) {
	        seq_input = 1;
                if (mode == 98) fprintf(stderr, "grib input is a block device\n");
	    }
	    else if (S_ISFIFO(stat_buf.st_mode)) {
	        seq_input = 1;
	        if (mode == 98) fprintf(stderr, "grib input is a fifo device\n");
	    }
	    else {
	        if (mode == 98) fprintf(stderr, "grib input has an unknown type\n");
	    }
	}

	if ((in = fopen(new_argv[file_arg],"rb")) == NULL) {
            fatal_error("could not open file: %s", new_argv[file_arg]);
	}
    }

    /* sequential input - can not do random access */
    if (seq_input && input == inv_mode) fatal_error("wgrib2 cannot random access grib input file","");

    ndata = 0;
    data = NULL;
    ddata = NULL;
    msg_no = 1;
    inv_no = 0;
    len = pos = 0;
    submsg = 0;
    msg = NULL;

    if ((old_gds = (unsigned char *) malloc(GDS_max_size * sizeof(char)) ) == NULL) {
	fatal_error("memory allocation problem old_gds in wgrib2.main","");
    }
    
    last_pos = -1;
    last_submsg = -1;

    /* if dump mode .. position io stream */
    if (input == dump_mode) {
        while (msg_no < dump_msg) {
	    msg = seq_input ?  rd_grib2_msg_seq(in, &pos, &len, &num_submsgs) :
	            rd_grib2_msg(in, &pos, &len, &num_submsgs);
            if (msg == NULL) fatal_error_i("record %d not found", dump_msg);
            last_pos = pos;
            pos += len;
            msg_no++;
        }
#ifdef DEBUG
        printf("dump mode msg=%d\n", msg_no);
#endif
    }

    /* 
     * submsg = 0 .. beginning of unread record
     * submsg = i .. start at ith submsg
     * num_submsgs = number of submessages in grib message
     */

    /* inventory loop */ 

    for (;last_message == 0;) {

        /* need position and submessage number of message */
        if (input == inv_mode || input == dump_mode) {
            if (input == inv_mode) {
                if (rd_inventory(&msg_no,&submsg, &pos)) break;
            }
            else if (input == dump_mode) {
                if (dump_msg == -1) break;
                submsg = dump_submsg;
                dump_msg = -1;
	    }

            if (pos != last_pos) {
		msg = seq_input ?  rd_grib2_msg_seq(in, &pos, &len, &num_submsgs) :
	            rd_grib2_msg(in, &pos, &len, &num_submsgs);
	        if (msg == NULL) {
                    fatal_error_i("grib message #%d not found", msg_no);
                    break;
                }
                last_pos = pos;
		last_submsg = -1;
            }

            if (pos == last_pos && submsg == last_submsg + 1) {
                /* read previous submessage */
		if (parse_next_msg(sec) != 0) {
                    fprintf(stderr,"\n*** grib message #%d.%d not found ***\n\n", msg_no, submsg);
                    break;
		}
            }
            else {
                /* need to get desired submessage into sec */
		if (parse_1st_msg(sec) != 0) {
                    fprintf(stderr,"\n*** grib message #%d.1 not found ***\n\n", msg_no);
                    break;
		}
                for (i = 2; i <= submsg; i++) {
		    if (parse_next_msg(sec) != 0) {
                        fprintf(stderr,"\n*** grib message #%d.%d not found ***\n\n", msg_no, i);
                        break;
                    }
		}
	    }
            last_submsg = submsg;
	}
        else if (input == all_mode) {
	    if (submsg == 0) {
		msg = seq_input ?  rd_grib2_msg_seq(in, &pos, &len, &num_submsgs) :
	            rd_grib2_msg(in, &pos, &len, &num_submsgs);
		if (msg == NULL) break;
                submsg = 1;
	    }
	    else if (submsg > num_submsgs) {
		pos += len;
                msg_no++;
		msg = seq_input ?  rd_grib2_msg_seq(in, &pos, &len, &num_submsgs) :
	            rd_grib2_msg(in, &pos, &len, &num_submsgs);
		if (msg == NULL) break;
                submsg = 1;
	    }
            if (submsg == 1) {
		if (parse_1st_msg(sec) != 0) {
		    fprintf(stderr,"illegal format: parsing 1st submessage\n");
		}
            }
            else {
		if (parse_next_msg(sec) != 0) {
                    fprintf(stderr,"illegal format: parsing submessages\n");
                }
	    }
	}
        if (only_submsg > 0 && only_submsg != submsg) {
	    submsg++;
	    continue;
	}

	if (for_mode) {
	    if (msg_no < for_start || msg_no > for_end || ((msg_no - for_start) % for_step) != 0) {
	        if (msg_no > for_end && input != inv_mode) last_message = 1;
		submsg++;
		continue;
	    }
	}

#ifdef USE_REGEX

	/* move inv_no++ before match_inv is made */
	inv_no++;
        if (match) {
	   inv_out[0] = 0;
	   if (num_submsgs > 1) {
	       sprintf(inv_out,"%d.%d:", msg_no, submsg);
	   }
           else {
	       sprintf(inv_out,"%d:", msg_no);
	   }

           // f_match_inv(0, sec, NULL, 0, inv_out+strlen(inv_out), NULL);
           f_match_inv(call_ARG0(inv_out+strlen(inv_out), NULL));

           if (is_match(inv_out) != 0) {
              submsg++;
	      inv_no--;
              continue;
           }
        }
#endif
	match_flag = 0;

        if (for_n_mode) {
            if (inv_no < for_n_start || inv_no > for_n_end || ((inv_no - for_n_start) % for_n_step) != 0) {
                if (inv_no > for_n_end) last_message = 1;
                submsg++;
                continue;
            }
        }

        /* see if new GDS */

	if ((i = GB2_Sec3_size(sec)) != old_GDS_size) {
	    new_GDS = 1;
	}
	else {
	    new_GDS = 0;
	    for (j = 0; j < i; j++) {
		if (old_gds[j] != sec[3][j]) new_GDS = 1;
	    }
	}
	if (new_GDS) {
	    GDS_change_no++;
	    if (i > GDS_max_size) {
		free(old_gds);
		GDS_max_size = i;
    		if ((old_gds = (unsigned char *) malloc(GDS_max_size) ) == NULL) {
			fatal_error("memory allocation problem old_gds in wgrib2.main","");
		}
	    }
	    for (j = 0; j < i; j++) {
		old_gds[j] = sec[3][j];
            }
	    old_GDS_size = i;
	    /* update grid information */
            get_nxny(sec, &nx, &ny, &npnts, &res, &scan);	 /* get nx, ny, and scan mode of grid */
	    output_order = (nx == -1 || ny == -1) ? raw : output_order_wanted;

            if (latlon) {
		i = 1;
		if (use_gctpc && output_order == wesn) {		/* use gctpc to get lat lon values */
		   i = gctpc_get_latlon(sec, &lon, &lat);
		}
		if (i) get_latlon(sec, &lon, &lat);			 /* get lat lon of grid points */
	    }
	}

	/* Decode NDFD WxText */
	if (WxText) mk_WxKeys(sec);

	// any fixes to raw grib message before decode need to be placed here
	if (fix_ncep_2_flag) fix_ncep_2(sec);
	if (fix_ncep_3_flag) fix_ncep_3(sec);
	if (fix_ncep_4_flag) fix_ncep_4(sec);

#ifdef CHECK
	j = code_table_5_0(sec);		// type of compression

	/* yes this can be simplified but want to split it up in case other decoders have problems */
	if (j == 0 && sec[5][19] == 0 && int2(sec[5] + 17) != 0 && ieee2flt(sec[5]+11) != 0.0) 
		fprintf(stderr,"Warning: g2lib/g2clib/grib-api simple decode may differ from WMO standard, use -g2clib 0 for WMO standard\n");
	if ((j == 2 || j == 3) && int2(sec[5]+17) != 0 && int4(sec[5] + 31) == 0 && ieee2flt(sec[5]+11) != 0.0) 
		fprintf(stderr,"Warning: g2lib/g2clib complex decode may differ from WMO standard, use -g2clib 0 for WMO standard\n");
	if (j == 40 && sec[5][19] == 0 && int2(sec[5] + 17) != 0 && ieee2flt(sec[5]+11) != 0.0) 
		fprintf(stderr,"Warning: g2lib/g2clib jpeg deocde may differ from WMO standard, use use -g2clib 0 for WMO standard\n");
	if (j == 41 && sec[5][19] == 0 && int2(sec[5] + 17) != 0 && ieee2flt(sec[5]+11) != 0.0) 
		fprintf(stderr,"Warning: g2lib/g2clib/grib-api png decode may differ from WMO standard, use -g2clib 0 for WMO standard\n");
#endif

#ifdef CHECK
	/* check the size of Section 7 */
	/* code to check the other sizes needs to be placed in decode routines */

	j = code_table_5_0(sec);		// type of compression
	if (j == 0) {		/* simple */
	    /* to avoid overflow on 32 bit machines */
	    /* old:  k = (GB2_Sec5_nval(sec) * sec[5][19] + 7) / 8 + 5; */
	    k = 5 + (GB2_Sec5_nval(sec)/8) * sec[5][19] +  (GB2_Sec5_nval(sec)%8) * (sec[5][19]/8)
	    	+ ( (GB2_Sec5_nval(sec)%8) * (sec[5][19]%8) + 7) / 8;

	    if (k != GB2_Sec7_size(sec)) {
		fprintf(stderr,"Detected a size mismatch, Section 7, wanted %d found %d\n", k, GB2_Sec7_size(sec));
		if (decode) fatal_error("Section 7 size, mismatch, simple packing","");
	    }
	}
	else if (j == 4) {		/* IEEE */
	    k = GB2_Sec5_nval(sec) * 4 + 5;
	    if (k != GB2_Sec7_size(sec)) {
		fprintf(stderr,"Detected a size mismatch, Section 7, wanted %d found %d\n", k, GB2_Sec7_size(sec));
		if (decode) fatal_error("Section 7 size, mismatch, IEEE packing","");
	    }
	}
#endif

	if (decode) {

#ifdef CHECK
            if (code_table_6_0(sec) == 0) {                         // has bitmap
                k = GB2_Sec3_npts(sec) -  GB2_Sec5_nval(sec);
                if (k != missing_points(sec[6]+6, GB2_Sec3_npts(sec)))
                    fatal_error_ii("inconsistent number of bitmap points sec3-sec5: %d sec6: %d",
			k, missing_points(sec[6]+6, GB2_Sec3_npts(sec)));
            }
            else if (code_table_6_0(sec) == 255) {                  // no bitmap
                if (GB2_Sec3_npts(sec) != GB2_Sec5_nval(sec))
                    fatal_error_ii("inconsistent number of data points sec3: %d sec5: %d",
                        GB2_Sec3_npts(sec), GB2_Sec5_nval(sec));
            }
#endif

            /* allocate data */
            if (GB2_Sec3_npts(sec) != ndata) {
                if (ndata) free(data);
                ndata = GB2_Sec3_npts(sec);
                if (ndata) {
                    data = (float *) malloc(ndata * sizeof(float));
                    if (data == NULL) fatal_error("main: memory allocation failed data","");
                }
                else { data = NULL; }
            }

	    j = code_table_5_0(sec);		// type of compression
	    gdt = code_table_3_1(sec);		// grid type
            pdt = GB2_ProdDefTemplateNo(sec);   // product defintion template

            /* USE G2CLIB */

#ifdef USE_G2CLIB
            if (use_g2clib == 2) {
                err = g2_getfld(msg,submsg,1,1,&grib_data);
                if (err != 0) fatal_error_ii("Fatal g2clib decode err=%d msg=%d", err, msg_no);
                free_gribfield = 1;

                has_bitmap = grib_data->ibmap;
                g2_data = &(grib_data->fld[0]);
                if (has_bitmap == 0 || has_bitmap == 254) {
                    bitmap = grib_data->bmap;
                    for (i = 0; i < ndata; i++) {
                         data[i] = (bitmap[i] == 0) ? UNDEFINED : g2_data[i];
                    }
                }
                else {
                    for (i = 0; i < ndata; i++) {
                        data[i] = g2_data[i];
                    }
                }

                /* complex packing uses special values for undefined */
                ii = sub_missing_values(sec, &missing_c_val_1, &missing_c_val_2);
                if (ii == 1) {
                    for (i = 0; i < ndata; i++) {
                        if (data[i] == missing_c_val_1) data[i] = UNDEFINED;
                    }
                }
                else if (ii == 2) {
                    for (i = 0; i < ndata; i++) {
                        if (data[i] == missing_c_val_1) data[i] = UNDEFINED;
                        if (data[i] == missing_c_val_2) data[i] = UNDEFINED;
                    }
                }
            }
#endif

            /* USE INTERNAL DECODER */

            if (use_g2clib != 2) {
                center = GB2_Center(sec);
                if (use_g2clib == 1) {	// introduce g2clib constant field error
		    /* g2clib ignores decimal scaling for constant fields make internal decoders look like g2clib*/
                    if ( (j == 0 && sec[5][19] == 0) || ((j == 2 || j == 3) && int4(sec[5] + 31) == 0) ||
                         (j == 40 && sec[5][19] == 0) || (j == 41 && sec[5][19] == 0) ||
                         (center == NCEP && j == 40000 && sec[5][19] == 0) || 
                         (center == NCEP && j == 40010 && sec[5][19] == 0)  ) {
			dscale[0] = sec[5][17];
			dscale[1] = sec[5][18];
			sec[5][17] = sec[5][18] = 0;
                    }
		}

		err = unpk_grib(sec, data);
                if (err != 0) fatal_error_i("Fatal decode packing type %d",err);

		if (use_g2clib == 1) {  // fix up data 
		    /* restore decimal scaling */
                    if ( (j == 0 && sec[5][19] == 0) || ((j == 2 || j == 3) && int4(sec[5] + 31) == 0) ||
                         (j == 40 && sec[5][19] == 0) || (j == 41 && sec[5][19]) ||
                         (center == NCEP && j == 40000 && sec[5][19] == 0) || 
                         (center == NCEP && j == 40010 && sec[5][19] == 0)  ) {
			sec[5][17] = dscale[0];
			sec[5][18] = dscale[1];
                    }
		}
            }

	    /* convert to standard output order we:sn */

	    if (output_order_wanted == wesn) to_we_sn_scan(data);
	    else if (output_order_wanted == wens) to_we_ns_scan(data);
	}
        else {
	    if (ndata) free(data);
            ndata = 0;
            data = NULL;
        }

	/* get scaling parameters */

	use_scale = scaling(sec, &ref, &dec_scale, &bin_scale, &i) == 0;


	if (num_submsgs > 1) {
	    fprintf(inv_file, "%d.%d%s%ld", msg_no, submsg, ":", pos);
	}
        else {
	    fprintf(inv_file, "%d%s%ld", msg_no, ":", pos);
	}

	for (j = 0; j < narglist; j++) {

	    /* skip execution if match_flag == 1 */
	    /* an output option acts as endif for match_flag */
	    if (match_flag == 1) {
                if (functions[arglist[j].fn].type == output)  match_flag = 0;
		continue;
	    }


            // if (functions[arglist[j].fn].type == inv) fprintf(inv_file, item_deliminator);
            if (functions[arglist[j].fn].type == inv) fprintf(inv_file, "%s", item_deliminator);
            if (functions[arglist[j].fn].type != setup) {
		inv_out[0] = 0;
	        n_arg = functions[arglist[j].fn].nargs;
		if (n_arg == 0) 
                    functions[arglist[j].fn].fn(mode, sec, data, ndata, inv_out, local+j);
		else if (n_arg == 1)
		    functions[arglist[j].fn].fn(mode, sec, data, ndata, inv_out, local+j,
			 new_argv[arglist[j].i_argc]);
		else if (n_arg == 2)
		    functions[arglist[j].fn].fn(mode, sec, data, ndata, inv_out, local+j,
			new_argv[arglist[j].i_argc], new_argv[arglist[j].i_argc+1]);
		else if (n_arg == 3)
		    functions[arglist[j].fn].fn(mode, sec, data, ndata, inv_out, local+j,
			new_argv[arglist[j].i_argc], new_argv[arglist[j].i_argc+1],
			new_argv[arglist[j].i_argc+2]);
		else if (n_arg == 4)
		    functions[arglist[j].fn].fn(mode, sec, data, ndata, inv_out, local+j,
			new_argv[arglist[j].i_argc], new_argv[arglist[j].i_argc+1],
			new_argv[arglist[j].i_argc+2], new_argv[arglist[j].i_argc+3]);
		else if (n_arg == 5)
		    functions[arglist[j].fn].fn(mode, sec, data, ndata, inv_out, local+j,
			new_argv[arglist[j].i_argc], new_argv[arglist[j].i_argc+1],
			new_argv[arglist[j].i_argc+2], new_argv[arglist[j].i_argc+3],
			new_argv[arglist[j].i_argc+4]);
		else if (n_arg == 6)
		    functions[arglist[j].fn].fn(mode, sec, data, ndata, inv_out, local+j,
			new_argv[arglist[j].i_argc], new_argv[arglist[j].i_argc+1],
			new_argv[arglist[j].i_argc+2], new_argv[arglist[j].i_argc+3],
			new_argv[arglist[j].i_argc+4], new_argv[arglist[j].i_argc+5]);
		else if (n_arg == 7)
		    functions[arglist[j].fn].fn(mode, sec, data, ndata, inv_out, local+j,
			new_argv[arglist[j].i_argc], new_argv[arglist[j].i_argc+1],
			new_argv[arglist[j].i_argc+2], new_argv[arglist[j].i_argc+3],
			new_argv[arglist[j].i_argc+4], new_argv[arglist[j].i_argc+5],
			new_argv[arglist[j].i_argc+6]);
		else if (n_arg == 8)
		    functions[arglist[j].fn].fn(mode, sec, data, ndata, inv_out, local+j,
			new_argv[arglist[j].i_argc], new_argv[arglist[j].i_argc+1],
			new_argv[arglist[j].i_argc+2], new_argv[arglist[j].i_argc+3],
			new_argv[arglist[j].i_argc+4], new_argv[arglist[j].i_argc+5],
			new_argv[arglist[j].i_argc+6], new_argv[arglist[j].i_argc+7]);

        	if(inv_out[0] != 0)  fprintf(inv_file, "%s", inv_out);
           }
	}

#ifdef CHECK
	if (!decode) {
            if (code_table_6_0(sec) == 0) {                         // has bitmap
                k = GB2_Sec3_npts(sec) -  GB2_Sec5_nval(sec);
                if (k != missing_points(sec[6]+6, GB2_Sec3_npts(sec)))
                    fatal_error_ii("inconsistent number of bitmap points sec3-sec5: %d sec6: %d",
			k, missing_points(sec[6]+6, GB2_Sec3_npts(sec)));
            }
            else if (code_table_6_0(sec) == 255) {                  // no bitmap
                if (GB2_Sec3_npts(sec) != GB2_Sec5_nval(sec))
                    fatal_error_ii("inconsistent number of data points sec3: %d sec5: %d",
                        GB2_Sec3_npts(sec), GB2_Sec5_nval(sec));
            }
	}
#endif

	submsg++;

#ifdef USE_G2CLIB
	if (free_gribfield) { g2_free(grib_data); free_gribfield = 0;}
#endif

	// fprintf(inv_file, "\n");
	fprintf(inv_file, "%s",end_inv);
	if (flush_mode) fflush(inv_file);
	if (dump_msg > 0) break;
    }

    /* finalize all functions, call with mode = -2 */

    for (j = 0; j < narglist; j++) {
        if (functions[arglist[j].fn].type != setup) {
	    n_arg = functions[arglist[j].fn].nargs;
	    inv_out[0] = 0;
	    if (n_arg == 0) 
                functions[arglist[j].fn].fn(-2, NULL, NULL, 0, inv_out, local+j);
	    else if (n_arg == 1)
		functions[arglist[j].fn].fn(-2, NULL, NULL, 0, inv_out, local+j,
			new_argv[arglist[j].i_argc]);
	    else if (n_arg == 2)
		functions[arglist[j].fn].fn(-2, NULL, NULL, 0, inv_out, local+j,
			new_argv[arglist[j].i_argc], new_argv[arglist[j].i_argc+1]);
	    else if (n_arg == 3)
		functions[arglist[j].fn].fn(-2, NULL, NULL, 0, inv_out, local+j,
			new_argv[arglist[j].i_argc], new_argv[arglist[j].i_argc+1],
			new_argv[arglist[j].i_argc+2]);
	    else if (n_arg == 4)
		functions[arglist[j].fn].fn(-2, NULL, NULL, 0, inv_out, local+j,
			new_argv[arglist[j].i_argc], new_argv[arglist[j].i_argc+1],
			new_argv[arglist[j].i_argc+2], new_argv[arglist[j].i_argc+3]);
	    else if (n_arg == 5)
		functions[arglist[j].fn].fn(-2, NULL, NULL, 0, inv_out, local+j,
			new_argv[arglist[j].i_argc], new_argv[arglist[j].i_argc+1],
			new_argv[arglist[j].i_argc+2], new_argv[arglist[j].i_argc+3],
			new_argv[arglist[j].i_argc+4]);
	    else if (n_arg == 6)
		functions[arglist[j].fn].fn(-2, NULL, NULL, 0, inv_out, local+j,
			new_argv[arglist[j].i_argc], new_argv[arglist[j].i_argc+1],
			new_argv[arglist[j].i_argc+2], new_argv[arglist[j].i_argc+3],
			new_argv[arglist[j].i_argc+4], new_argv[arglist[j].i_argc+5]);
	    else if (n_arg == 7)
		functions[arglist[j].fn].fn(-2, NULL, NULL, 0, inv_out, local+j,
			new_argv[arglist[j].i_argc], new_argv[arglist[j].i_argc+1],
			new_argv[arglist[j].i_argc+2], new_argv[arglist[j].i_argc+3],
			new_argv[arglist[j].i_argc+4], new_argv[arglist[j].i_argc+5],
			new_argv[arglist[j].i_argc+6]);
	    else if (n_arg == 8)
		functions[arglist[j].fn].fn(-2, NULL, NULL, 0, inv_out, local+j,
			new_argv[arglist[j].i_argc], new_argv[arglist[j].i_argc+1],
			new_argv[arglist[j].i_argc+2], new_argv[arglist[j].i_argc+3],
			new_argv[arglist[j].i_argc+4], new_argv[arglist[j].i_argc+5],
			new_argv[arglist[j].i_argc+6], new_argv[arglist[j].i_argc+7]);
            // if (inv_out[0]) fprintf(stderr, "%s\n", inv_out);
            if (inv_out[0]) fprintf(stderr, "%s%s", inv_out, end_inv);
        }
    }
    eof_bin(); eof_string();
    exit(0);
}
예제 #17
0
int space_view_init(unsigned char **sec) {

    double major, minor, orient_angle, angular_size;
    int x0, y0;
    int nres, nscan;
    unsigned int nnpnts;

fprintf(stderr,"ALPHA: experimental space_view2ij\n");
    if (sec == NULL || sec[3] == NULL) fatal_error("space_view_init: sec/sec[3] == NULL","");
 
    if (code_table_3_1(sec) != 90) fatal_error("space_view_init: not space view grid","");
    if (output_order != wesn) fatal_error("space_view_init: order must be we:sn","");

//printf("space_view_init >>>> table 3.1 %d\n", code_table_3_1(sec));

    get_nxny(sec, &nnx, &nny, &nnpnts, &nres, &nscan);
    axes_earth(sec, &major, &minor);
//fprintf(stderr,">> axes %lf minor %lf\n", major,minor);

    r_eq = major * 0.001;
    r_pol = minor * 0.001;
    r_pol_eq = (r_pol * r_pol) / (r_eq * r_eq);

//    factor_10 = (r_eq*r_eq - r_pol*r_pol) / (r_eq * r_eq);
    factor_10 = 1.0 - r_pol_eq;

//fprintf(stderr,">> r_eq %lf r_pol %lf rad_factor %lf \n",r_eq, r_pol, factor_10);

    angular_size = 2.0 * asin(1e6/ uint4(sec[3]+68));
    sat_height = uint4(sec[3]+68) * 1e-6 * r_eq;
//fprintf(stderr,">> sat height %lf\n",sat_height);

    lap = int4(sec[3]+38);
    lop = int4(sec[3]+38);
    /* I am guessing that a scale factor has to be added */
    lap *= 1e-6;
    lop *= 1e-6;
// fprintf(stderr,">> lap  %lf lop %lf degrees\n",lap, lop);
    if (lap != 0.0) return 0;   // need to extend code

    /* convert to radians */
    lap *= (180.0/M_PI);
    lop *= (180.0/M_PI);

    orient_angle = int4(sec[3]+64);
    /* I am guessing that a scale factor has to be added */
    orient_angle *= 1e-6;
// fprintf(stderr,">> orientation angle %lf\n", orient_angle);
    if (orient_angle != 0.0) return 0;  // need to extend code

    xp = int4(sec[3]+55) * 0.001;
    yp = int4(sec[3]+59) * 0.001;

//fprintf(stderr,">> xp %lf yp %lf pixels\n",xp, yp);

    x0 = int4(sec[3]+72);
    y0 = int4(sec[3]+76);
//fprintf(stderr,">> origin x0 %d yo %d pixels\n",x0, y0);

    /* find center point in we:sn coordinate */

    if (GDS_Scan_x(nscan)) {
        xp = xp - x0;
    } else {
        xp = (nnx-1) - (xp - x0);
    }
    if (GDS_Scan_y(nscan)) {
        yp = yp - y0;
    }
    else {
        yp = (nny-1) - (yp - y0);
    }
//fprintf(stderr,">> new center point point x/y=%lf %lf nnx=%d nny=%d\n", xp,yp,nnx, nny);

    dx = int4(sec[3]+47);
    dy = int4(sec[3]+51);
//fprintf(stderr,">> dia: dx %lf dy %lf pixels\n",dx, dy);

    inv_rx = dx / angular_size;
    inv_ry = (r_eq/r_pol) * dy / angular_size;

// fprintf(stderr,">> factor %.18lf %.18lf, q: %.19lf %.18lf\n", 256*256.0/(-781648343.0), 256*256.0/(-781648343.0), 1/inv_rx, 1/inv_ry);


    return 0;
}
예제 #18
0
int code_table_3_8(unsigned char **sec) {
    int grid_def;
    grid_def = code_table_3_1(sec);
    if (grid_def == 100)  return sec[3][31];
    return -1;
}
예제 #19
0
int f_AAIG(ARG0) {

    int grid_template;
    double cellsize;
    char *save_inv_out, level[STRING_SIZE], file[STRING_SIZE], name[STRING_SIZE];
    int year0, month0, day0, hour0, minute0, second0;
    int year, month, day, hour, minute, second, i, j;
    FILE *out;

    if (mode == -1) {
        decode = latlon = 1;
        return 0;
    }
    if (mode < 0) return 0;

    if (lat == NULL || lon == NULL) {
        fprintf(stderr,"f_AAIG does nothing, no lat-lon information\n");
        return 0;
    }
    if (output_order != wesn) {
        fprintf(stderr,"f_AAIG does nothing, not in we:sn order\n");
        return 0;
    }

    grid_template = code_table_3_1(sec);
    if (grid_template != 0) {
        fprintf(stderr,"f_AAIG does nothing, not lat-lon grid\n");
        return 0;
    }
    if (nx == -1 || ny == -1) {
        fprintf(stderr,"f_AAIG does nothing, found thinned lat-lon grid\n");
        return 0;
    }
    cellsize = -1.0;
    if (nx > 1) {
	cellsize = lon[1] - lon[0];
	if ( fabs(lat[nx]-lat[0] - cellsize) > 0.0001*cellsize) {
            fprintf(stderr,"f_AAIG does nothing, dlon != dlat\n");
            return 0;
	}
    }
    else {
	cellsize = lat[nx] - lat[0];
    }

    if (getName(sec, mode, NULL, name, NULL, NULL) != 0) {
        fprintf(stderr,"f_AAIG does nothing, no name\n");
        return 0;
    }

    save_inv_out = inv_out;
    inv_out = level;
    f_lev(CALL_ARG0);
    inv_out = save_inv_out;

    save_inv_out = level;
    while (*save_inv_out) {
        if (*save_inv_out == ' ') *save_inv_out = '_';
	save_inv_out++;
    }

    reftime(sec, &year0, &month0, &day0, &hour0, &minute0, &second0);

    if (verftime(sec, &year, &month, &day, &hour, &minute, &second) != 0) {
        fprintf(stderr,"f_AAIG no verf time\n");
	year = year0;
	month = month0;
	day = day0;
	hour = hour0;
    }
    if (year == year0 && month == month0 && day == day0 && hour == hour0) {
        sprintf(file,"%s.%s.%4.4d%2.2d%2.2d%2.2d.asc",name,level,year,month,day,hour);
    } 
    else {
        sprintf(file,"%s.%s.%4.4d%2.2d%2.2d%2.2d_%4.4d%2.2d%2.2d%2.2d.asc",
		name,level,year0,month0,day0,hour0,year,month,day,hour);
    }

    if ((out = fopen(file,"w")) == NULL) {
        fprintf(stderr,"f_AAIG could not open raster file %s\n",file);
        return 0;
    }

    fprintf(stderr, "raster file: %s\n", file);

    fprintf(out,"ncols %d\n", nx);
    fprintf(out,"nrows %d\n", ny);
    fprintf(out,"xllcenter %lf\n", lon[0] > 180.0 ? lon[0]-180.0 : lon[0]);
    fprintf(out,"yllcenter %lf\n", lat[0]);
    fprintf(out,"cellsize %lf\n", cellsize);
    fprintf(out,"NODATA_VALUE 9.999e20\n");
    for (j = ny-1; j >= 0; j--) {
	for (i = 0; i < nx; i++) {
	    fprintf(out,"%f\n", data[i+j*nx]);
	}
    }
    fclose(out);
    return 0;
}