int set_flag_table_3_3(unsigned char **sec, unsigned int flag) {
unsigned char *p;
p = flag_table_3_3_location(sec);
if (p == NULL) return -1;
*p = flag;
return 0;
}
int f_new_grid(ARG4) {
struct local_struct *save;
unsigned int i;
int is_u, is_v, ftn_npnts, ftn_nout;
int kgds[200], km;
float *data_in, *data_out;
double x0, y0, dx, dy, xn, yn;
double lov, lad, latin1, latin2;
int proj; // projection: for LC 0 = NP, 128 = SP
char name[NAMELEN];
int j, ibi, ibo, iret, nnx, nny, n_out;
unsigned char *new_sec[8], *s, *bitmap, *bitmap_out, *p;
/* for lambertc */
double r_maj, r_min, ref_lon, ref_lat;
if (mode == -1) { // initialization
decode = 1;
output_order_wanted = raw; // in raw order
#ifdef G95
// initialize g95 runtime library
if (g95_runstop == 0) {
g95_runtime_start(0,NULL);
g95_runstop = 1;
}
#endif
// if ( (sizeof(vectors) / sizeof (vectors[0])) % 2 == 1) fatal_error("new_grid: program error in vectors[]","");
// allocate static variables
*local = save = (struct local_struct *) malloc( sizeof(struct local_struct));
if (save == NULL) fatal_error("memory allocation -wind_speed","");
if ((save->out = ffopen(arg4, file_append ? "ab" : "wb")) == NULL) {
fatal_error("-new_grid: could not open file %s", arg1);
}
save->has_u = 0;
save->radius_major = save->radius_minor = 0.0;
init_sec(save->clone_sec);
s = NULL;
// parse NCEP grids */
ncep_grids(&arg1, &arg2, &arg3);
// for each output grid
if (strcmp(arg1,"latlon") == 0) {
if (sscanf(arg2,"%lf:%d:%lf", &x0, &nnx, &dx) != 3)
fatal_error("new_grid: XDEF wrong:%s",arg2);
if (sscanf(arg3,"%lf:%d:%lf", &y0, &nny, &dy) != 3)
fatal_error("new_grid: YDEF wrong:%s",arg3);
if (x0 < 0.0) x0 += 360.0;
save->nx = nnx;
save->ny = nny;
save->npnts_out = n_out = nnx*nny;
if (n_out <= 0) fatal_error("new_grid: bad nx, ny","");
// make a new section 3
s = sec3_lola(nnx, x0, dx, nny, y0, dy, sec);
}
else if (strncmp(arg1,"mercator:",9) == 0) {
if (sscanf(arg1,"mercator:%lf", &lad) != 1)
fatal_error("new_grid: LaD (latitude interesection) not specified","");
if (sscanf(arg2,"%lf:%d:%lf:%lf", &x0, &nnx, &dx, &xn) != 4)
fatal_error("new_grid: XDEF wrong:%s",arg2);
if (sscanf(arg3,"%lf:%d:%lf:%lf", &y0, &nny, &dy, &yn) != 4)
if (x0 < 0.0) x0 += 360.0;
save->nx = nnx;
save->ny = nny;
save->npnts_out = n_out = nnx*nny;
if (n_out <= 0) fatal_error("new_grid: bad nx, ny","");
// make a new section 3
s = sec3_mercator(lad, nnx, x0, dx, xn, nny, y0, dy, yn, sec);
}
else if (strcmp(arg1,"gaussian") == 0) {
if (sscanf(arg2,"%lf:%d:%lf", &x0, &nnx, &dx) != 3)
fatal_error("new_grid: XDEF wrong:%s",arg2);
if (sscanf(arg3,"%lf:%d", &y0, &nny) != 2)
fatal_error("new_grid: YDEF wrong:%s",arg3);
if (x0 < 0.0) x0 += 360.0;
save->nx = nnx;
save->ny = nny;
save->npnts_out = n_out = nnx*nny;
if (n_out <= 0) fatal_error("new_grid: bad nx, ny","");
// make a new section 3
s = sec3_gaussian(nnx, x0, dx, nny, y0, sec);
}
else if (strncmp(arg1,"lambert:",8) == 0) {
i = sscanf(arg1,"lambert:%lf:%lf:%lf:%lf", &lov, &latin1, &latin2, &lad);
if (i < 2) fatal_error("new_grid: arg1 wrong:%s",arg1);
if (lov < 0.0) lov += 360.0;
if (i < 3) latin2 = latin1;
if (i < 4) lad = latin2;
proj = 0;
if (latin2 < 0.0) proj = 128;
if (sscanf(arg2,"%lf:%d:%lf", &x0, &nnx, &dx) != 3)
fatal_error("new_grid: XDEF wrong:%s",arg2);
if (sscanf(arg3,"%lf:%d:%lf", &y0, &nny, &dy) != 3)
fatal_error("new_grid: YDEF wrong:%s",arg3);
if (x0 < 0.0) x0 += 360.0;
save->nx = nnx;
save->ny = nny;
save->npnts_out = n_out = nnx*nny;
if (n_out <= 0) fatal_error("new_grid: bad nx, ny","");
// make a new section 3
s = sec3_lc(lov, lad, latin1, latin2, proj, nnx, x0, dx, nny, y0, dy, sec);
}
/* for lambertc, input is the lon-lat of center point */
/* can not calc grid until radius is given, so do lambert code to check args */
else if (strncmp(arg1,"lambertc:",9) == 0) {
i = sscanf(arg1,"lambertc:%lf:%lf:%lf:%lf", &lov, &latin1, &latin2, &lad);
if (i < 2) fatal_error("new_grid: arg1 wrong:%s",arg1);
if (lov < 0.0) lov += 360.0;
if (i < 3) latin2 = latin1;
if (i < 4) lad = latin2;
proj = 0;
if (latin2 < 0.0) proj = 128;
if (sscanf(arg2,"%lf:%d:%lf", &x0, &nnx, &dx) != 3)
fatal_error("new_grid: XDEF wrong:%s",arg2);
if (sscanf(arg3,"%lf:%d:%lf", &y0, &nny, &dy) != 3)
fatal_error("new_grid: YDEF wrong:%s",arg3);
if (x0 < 0.0) x0 += 360.0;
save->nx = nnx;
save->ny = nny;
save->npnts_out = n_out = nnx*nny;
if (n_out <= 0) fatal_error("new_grid: bad nx, ny","");
// make a new section 3
s = sec3_lc(lov, lad, latin1, latin2, proj, nnx, x0, dx, nny, y0, dy, sec);
}
else if (strncmp(arg1,"nps:",4) == 0 || strncmp(arg1,"sps:",4) == 0) {
if (sscanf(arg1,"%*[ns]ps:%lf:%lf", &lov, &lad) != 2) fatal_error("new_grid: arg1 wrong:%s",arg1);
if (lad != 60.0) fatal_error("New_grid: only LatD = 60 is supported","");
proj = 0;
if (arg1[0] == 's') proj = 128;
if (sscanf(arg2,"%lf:%d:%lf", &x0, &nnx, &dx) != 3)
fatal_error("new_grid: XDEF wrong:%s",arg2);
if (sscanf(arg3,"%lf:%d:%lf", &y0, &nny, &dy) != 3)
fatal_error("new_grid: YDEF wrong:%s",arg3);
if (lov < 0.0) lov += 360.0;
if (x0 < 0.0) x0 += 360.0;
save->nx = nnx;
save->ny = nny;
save->npnts_out = n_out = nnx*nny;
if (n_out <= 0) fatal_error("new_grid: bad nx, ny","");
// make a new section 3
s = sec3_polar_stereo(lov, lad, proj, nnx, x0, dx, nny, y0, dy, sec);
}
else fatal_error("new_grid: unsupported output grid %s", arg1);
// save new section 3
i = (int) uint4(s); // size of section 3
new_sec[3] = save->sec3 = (unsigned char *) malloc(i * sizeof(unsigned char));
for (j = 0; j < i; j++) save->sec3[j] = s[j];
// apply wind rotation .. change flag 3.3
if (wind_rotation == undefined) {
fprintf(stderr,"Warning: -new_grid wind orientation undefined, "
"use \"-new_grid_winds (grid|earth)\", earth used (N=North Pole)\n");
if ( (p = flag_table_3_3_location(new_sec)) ) *p = *p & (255 - 8);
}
if (wind_rotation == grid && (p = flag_table_3_3_location(new_sec))) *p = *p | 8;
if (mk_kgds(new_sec, save->kgds_out)) fatal_error("new_grid: encoding output kgds","");
/* some vectors need by interpolation routines */
if ((save->rlat = (float *) malloc(n_out * sizeof(float))) == NULL)
fatal_error("new_grid memory allocation","");
if ((save->rlon = (float *) malloc(n_out * sizeof(float))) == NULL)
fatal_error("new_grid memory allocation","");
if ((save->crot = (float *) malloc(n_out * sizeof(float))) == NULL)
fatal_error("new_grid memory allocation","");
if ((save->srot = (float *) malloc(n_out * sizeof(float))) == NULL)
fatal_error("new_grid memory allocation","");
return 0;
}
save = (struct local_struct *) *local;
if (mode == -2) { // cleanup
#ifdef G95
if (g95_runstop == 1) {
g95_runtime_stop();
g95_runstop = 0;
}
#endif
if (save->has_u > 0) {
fprintf(stderr,"-new_grid: last field %s was not interpolated (missing V)\n", save->name);
free(save->u_val);
free_sec(save->clone_sec);
}
free(save->rlon);
free(save->rlat);
free(save->crot);
free(save->srot);
free(save->sec3);
ffclose(save->out);
free(save);
return 0;
}
if (mode >= 0) { // processing
/* The kgds of some output grids will change depending on input grid */
/* for example, radius of earth is not known grib file is read, */
/* and mass vs wind fields */
/* right nowm, only affects lambertc */
if (strncmp(arg1,"lambertc:",8) == 0) {
// lambertc depends on the radius of the earth which is
// set by the input grib file
/* read earth radius */
i = axes_earth(sec, &r_maj, &r_min);
if (i) fatal_error_i("axes_earth: error code %d", i);
if (save->radius_major != r_maj || save->radius_minor != r_min) {
// update sec3 and kgds
i = sscanf(arg1,"lambertc:%lf:%lf:%lf:%lf", &lov, &latin1, &latin2, &lad);
if (i < 2) fatal_error("new_grid: arg1 wrong:%s",arg1);
if (lov < 0.0) lov += 360.0;
if (i < 3) latin2 = latin1;
if (i < 4) lad = latin2;
proj = 0;
if (latin2 < 0.0) proj = 128;
if (sscanf(arg2,"%lf:%d:%lf", &x0, &nnx, &dx) != 3)
fatal_error("new_grid: XDEF wrong:%s",arg2);
if (sscanf(arg3,"%lf:%d:%lf", &y0, &nny, &dy) != 3)
fatal_error("new_grid: YDEF wrong:%s",arg3);
if (x0 < 0.0) x0 += 360.0;
save->nx = nnx;
save->ny = nny;
save->npnts_out = n_out = nnx*nny;
if (n_out <= 0) fatal_error("new_grid: bad nx, ny","");
ref_lon = x0;
ref_lat = y0;
i = new_grid_lambertc(nnx, nny, ref_lon, ref_lat, latin1, latin2, lov, lad, r_maj, r_min, dx, dy, &x0, &y0);
if (i) fatal_error_i("new_grid_lambertc: error code %d", i);
// make a new section 3
s = sec3_lc(lov, lad, latin1, latin2, proj, nnx, x0, dx, nny, y0, dy, sec);
// save new section 3
i = (int) uint4(s); // size of section 3
for (j = 0; j < i; j++) save->sec3[j] = s[j];
// make kgds
new_sec[3] = save->sec3;
if (mk_kgds(new_sec, save->kgds_out)) fatal_error("new_grid: encoding output kgds","");
// save radius of earth, to show sec3 and kgds has been done
save->radius_major = r_maj;
save->radius_minor = r_min;
}
}
if (output_order != raw) fatal_error("new_grid: must be in raw output order","");
i = getName(sec, mode, NULL, name, NULL, NULL);
is_u = is_v = 0;
// for (j = 0 ; j < sizeof(vectors) / sizeof(vectors[0]); j++) {
for (j = 0; vectors[j] != NULL; j++) {
if (strcmp(name,vectors[j]) == 0) {
if (j % 2 == 0) is_u = 1;
else is_v = 1;
break;
}
}
// fprintf(stderr, " %s isu %d isv %d has_u %d\n", name, is_u, is_v, save->has_u);
// for (i = 0; i < 12; i++) { printf("kgds_out[%d] = %d ",i,save->kgds_out[i]); }
// check if V matches expectation
if (is_v && (save->has_u == 0 || (same_sec0(sec,save->clone_sec) != 1 ||
same_sec1(sec,save->clone_sec) != 1 ||
same_sec3(sec,save->clone_sec) != 1 ||
same_sec4(sec,save->clone_sec) != 1) )) {
fprintf(stderr,"-new_grid: %s doesn't pair with previous vector field, field ignored\n", name);
return 0;
}
// if U field - save
if (is_u) {
if (save->has_u > 0) {
fprintf(stderr,"-new_grid: missing V, %s not interpolated\n",save->name);
free(save->u_val);
free_sec(save->clone_sec);
}
copy_sec(sec, save->clone_sec);
copy_data(data,ndata,&(save->u_val));
GB2_ParmNum(save->clone_sec) = GB2_ParmNum(sec) + 1;
save->has_u = 1;
strncpy(save->name, name,NAMELEN-1);
save->name[NAMELEN-2]=0;
return 0;
}
// at this point will call polates with either a scalar or vector
n_out = save->npnts_out;
nnx = save->nx;
nny = save->ny;
km = 1; // only one field
if (mk_kgds(sec, kgds)) fatal_error("new_grid: encoding input kgds","");
data_in = (float *) malloc(npnts * (1 + (is_v != 0)) * sizeof(float));
bitmap = (unsigned char *) malloc(npnts * sizeof(unsigned char));
bitmap_out = (unsigned char *) malloc(n_out * sizeof(unsigned char));
data_out = (float *) malloc(n_out * (1 + (is_v != 0)) * sizeof(float));
if (data_in == NULL || data_out == NULL || bitmap == NULL || bitmap_out == NULL)
fatal_error("new_grid: memory allocation problem","");
ibi = 0; // input bitmap is not used
if (is_v) {
for (i = 0; i < npnts; i++) {
if (DEFINED_VAL(data[i]) && DEFINED_VAL(save->u_val[i])) {
data_in[i] = save->u_val[i];
data_in[i+npnts] = data[i];
bitmap[i] = 1;
}
else {
data_in[i] = data_in[i + npnts] = 0.0;
bitmap[i] = 0;
ibi = 1; // input bitmap is used
}
}
if (mode == 98) fprintf(stderr," UV interpolation %s , %s\n", save->name, name);
}
else {
for (i = 0; i < npnts; i++) {
if (DEFINED_VAL(data[i])) {
data_in[i] = data[i];
bitmap[i] = 1;
}
else {
data_in[i] = 0.0;
bitmap[i] = 0;
ibi = 1; // input bitmap is used
}
}
}
// interpolate
// for (i = 0; i < 12; i++) { printf("\nkgds_in[%d] = %d out=%d ",i,kgds[i],save->kgds_out[i]); }
ftn_npnts = (int) npnts;
ftn_nout = (int) n_out;
if (is_v) {
IPOLATEV(&interpol_type, ipopt,kgds,save->kgds_out,
&ftn_npnts, &n_out, &km, &ibi, bitmap, data_in, data_in+npnts,
&ftn_nout,save->rlat,save->rlon, save->crot, save->srot,
&ibo, bitmap_out, data_out, data_out + n_out, &iret);
}
else {
IPOLATES(&interpol_type, ipopt,kgds,save->kgds_out,
&ftn_npnts, &n_out, &km, &ibi, bitmap, data_in, &ftn_nout,
save->rlat,save->rlon, &ibo, bitmap_out, data_out, &iret);
}
if (iret != 0) {
for (i = 0; i < 12; i++) {
fprintf(stderr," IPOLATES error: kgds[%d] input %d output %d\n", i+1,kgds[i],save->kgds_out[i]);
}
if (iret == 2) fatal_error("IPOLATES failed, unrecognized input grid or no grid overlap","");
if (iret == 3) fatal_error("IPOLATES failed, unrecognized output grid","");
fatal_error_i("IPOLATES failed, error %d",iret);
}
n_out = (unsigned int) ftn_nout;
/* use bitmap to set UNDEFINED values */
if (ibo == 1) { // has a bitmap
if (is_v) {
for (i = 0; i < n_out; i++) {
if (bitmap_out[i] == 0) data_out[i] = data_out[i+n_out] = UNDEFINED;
}
}
else {
for (i = 0; i < n_out; i++) {
if (bitmap_out[i] == 0) data_out[i] = UNDEFINED;
}
}
}
// now to write out the grib file
for (i = 0; i < 8; i++) new_sec[i] = sec[i];
new_sec[3] = save->sec3;
if (is_v != 0) {
GB2_ParmNum(new_sec) = GB2_ParmNum(new_sec) - 1;
grib_wrt(new_sec, data_out, n_out, nnx, nny, use_scale, dec_scale, bin_scale,
wanted_bits, max_bits, grib_type, save->out);
GB2_ParmNum(new_sec) = GB2_ParmNum(new_sec) + 1;
grib_wrt(new_sec, data_out+n_out, n_out, nnx, nny, use_scale, dec_scale, bin_scale,
wanted_bits, max_bits, grib_type, save->out);
}
else {
grib_wrt(new_sec, data_out, n_out, nnx, nny, use_scale, dec_scale, bin_scale,
wanted_bits, max_bits, grib_type, save->out);
}
if (flush_mode) fflush(save->out);
free(data_in);
free(bitmap);
free(bitmap_out);
free(data_out);
if (is_v != 0) {
save->has_u = 0;
free(save->u_val);
free_sec(save->clone_sec);
}
}
return 0;
}
int flag_table_3_3(unsigned char **sec) {
unsigned char *p;
p = flag_table_3_3_location(sec);
if (p == NULL) return -1;
return (int) *p;
}
