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;
}
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;
}
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;
}
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;
}
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;
}
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;
}
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;
}
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;
}
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;
}
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;
}
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;
}
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;
}
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;
}
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;
}
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;
}
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);
}
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;
}
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;
}
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;
}