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#include "netcdf.h"
int
main() { /* create example.cdf */
int ncid; /* netCDF id */
/* dimension ids */
int lat_dim, lon_dim, frtime_dim, timelen_dim;
/* variable ids */
int P_id, lat_id, lon_id, frtime_id, reftime_id, scalarv_id;
/* variable shapes */
int dims[3];
/* containers for scalar attributes */
float float_val;
double double_val;
/* attribute vectors */
float P_valid_range[2];
/* enter define mode */
ncid = nccreate("example.cdf", NC_CLOBBER);
/* define dimensions */
lat_dim = ncdimdef(ncid, "lat", 4L);
lon_dim = ncdimdef(ncid, "lon", 3L);
frtime_dim = ncdimdef(ncid, "frtime", NC_UNLIMITED);
timelen_dim = ncdimdef(ncid, "timelen", 20L);
/* define variables and assign attributes */
dims[0] = frtime_dim;
dims[1] = lat_dim;
dims[2] = lon_dim;
P_id = ncvardef (ncid, "P", NC_FLOAT, 3, dims);
ncattput (ncid, P_id, "long_name", NC_CHAR, 24,
(void *)"pressure at maximum wind");
ncattput (ncid, P_id, "units", NC_CHAR, 12,
(void *)"hectopascals");
P_valid_range[0] = 0;
P_valid_range[1] = 1500;
ncattput (ncid, P_id, "valid_range", NC_FLOAT, 2,
(void *) P_valid_range);
float_val = -9999;
ncattput (ncid, P_id, "_FillValue", NC_FLOAT, 1,
(void *) &float_val);
dims[0] = lat_dim;
lat_id = ncvardef (ncid, "lat", NC_FLOAT, 1, dims);
ncattput (ncid, lat_id, "long_name", NC_CHAR, 8,
(void *)"latitude");
ncattput (ncid, lat_id, "units", NC_CHAR, 13,
(void *)"degrees_north");
dims[0] = lon_dim;
lon_id = ncvardef (ncid, "lon", NC_FLOAT, 1, dims);
ncattput (ncid, lon_id, "long_name", NC_CHAR, 9,
(void *)"longitude");
ncattput (ncid, lon_id, "units", NC_CHAR, 12,
(void *)"degrees_east");
dims[0] = frtime_dim;
frtime_id = ncvardef (ncid, "frtime", NC_LONG, 1, dims);
ncattput (ncid, frtime_id, "long_name", NC_CHAR, 13,
(void *)"forecast time");
ncattput (ncid, frtime_id, "units", NC_CHAR, 5,
(void *)"hours");
dims[0] = timelen_dim;
reftime_id = ncvardef (ncid, "reftime", NC_CHAR, 1, dims);
ncattput (ncid, reftime_id, "long_name", NC_CHAR, 14,
(void *)"reference time");
ncattput (ncid, reftime_id, "units", NC_CHAR, 9,
(void *)"text_time");
scalarv_id = ncvardef (ncid, "scalarv", NC_LONG, 0, 0);
double_val = 1;
ncattput (ncid, scalarv_id, "scalar_att", NC_DOUBLE, 1,
(void *) &double_val);
/* Global attributes */
ncattput (ncid, NC_GLOBAL, "history", NC_CHAR, 41,
(void *)"created by Unidata LDM from NPS broadcast");
ncattput (ncid, NC_GLOBAL, "title", NC_CHAR, 48,
(void *)"NMC Global Product Set: Pressure at Maximum Wind");
/* leave define mode */
ncendef (ncid);
{ /* store lat */
static long lat_start[] = {0};
static long lat_edges[] = {4};
static float lat[] = {-90, -87.5, -85, -82.5};
ncvarput(ncid, lat_id, lat_start, lat_edges, (void *)lat);
}
{ /* store lon */
static long lon_start[] = {0};
static long lon_edges[] = {3};
static float lon[] = {-180, -175, -170};
ncvarput(ncid, lon_id, lon_start, lon_edges, (void *)lon);
}
{ /* store frtime */
static long frtime_start[] = {0};
static long frtime_edges[] = {1};
static long frtime[] = {12};
ncvarput(ncid, frtime_id, frtime_start, frtime_edges,
(void *)frtime);
}
{ /* store frtime */
static long frtime_start[] = {1};
static long frtime_edges[] = {1};
static long frtime[] = {18};
ncvarput(ncid, frtime_id, frtime_start, frtime_edges,
(void *)frtime);
}
{ /* store reftime */
static long reftime_start[] = {0};
static long reftime_edges[] = {20};
static char reftime[] = {"1992 03 04 12:00"};
ncvarput(ncid, reftime_id, reftime_start, reftime_edges,
(void *)reftime);
}
{ /* store P */
static long P_start[] = {0, 0, 0};
static long P_edges[] = {2, 4, 3};
static float P[] = {
950, 951, 952, 953, 954, 955, 956, 957, 958, 959, 960, 961
962, 963, 964, 965, 966, 967, 968, 969, 970, 971, 972, 973
};
ncvarput(ncid, P_id, P_start, P_edges, (void *)P);
}
{ /* store scalarv */
static long scalarv = {-2147483647};
ncvarput1(ncid, scalarv_id, (long *)0, (void *)&scalarv);
}
ncclose (ncid);
return 0;
}
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