mirror of
https://github.com/Unidata/netcdf-c.git
synced 2024-11-21 03:13:42 +08:00
280 lines
7.9 KiB
C
280 lines
7.9 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <netcdf.h>
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#define Clear ((unsigned char)0)
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#define Cumulonimbus ((unsigned char)1)
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#define Stratus ((unsigned char)2)
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typedef unsigned char enum_t;
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typedef unsigned char opaque_t[11];
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typedef nc_vlen_t vlen_t;
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typedef struct g_cmpd_t {
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vlen_t f1;
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enum_t f2;
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} g_cmpd_t;
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void
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check_err(const int stat, const int line, const char *file) {
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if (stat != NC_NOERR) {
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(void)fprintf(stderr,"line %d of %s: %s\n", line, file, nc_strerror(stat));
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fflush(stderr);
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exit(1);
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}
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}
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int
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main() {/* create tst_diskless2.nc */
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int stat; /* return status */
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int ncid; /* netCDF id */
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/* group ids */
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int root_grp;
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int g_grp;
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int h_grp;
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/* type ids */
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int enum_t_typ;
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int opaque_t_typ;
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int vlen_t_typ;
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int g_cmpd_t_typ;
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/* dimension ids */
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int lat_dim;
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int lon_dim;
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int time_dim;
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/* dimension lengths */
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size_t lat_len = 10;
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size_t lon_len = 5;
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size_t time_len = NC_UNLIMITED;
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/* variable ids */
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int lat_id;
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int lon_id;
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int time_id;
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int Z_id;
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int t_id;
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int p_id;
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int rh_id;
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int country_id;
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int tag_id;
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int h_compoundvar_id;
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/* rank (number of dimensions) for each variable */
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# define RANK_lat 1
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# define RANK_lon 1
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# define RANK_time 1
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# define RANK_Z 3
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# define RANK_t 3
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# define RANK_p 3
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# define RANK_rh 3
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# define RANK_country 3
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# define RANK_tag 0
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# define RANK_h_compoundvar 0
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/* variable shapes */
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int lat_dims[RANK_lat];
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int lon_dims[RANK_lon];
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int time_dims[RANK_time];
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int Z_dims[RANK_Z];
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int t_dims[RANK_t];
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int p_dims[RANK_p];
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int rh_dims[RANK_rh];
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int country_dims[RANK_country];
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/* enter define mode */
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stat = nc_create("tst_diskless2.nc", NC_DISKLESS|NC_WRITE|NC_CLOBBER|NC_NETCDF4, &ncid);
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check_err(stat,__LINE__,__FILE__);
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root_grp = ncid;
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stat = nc_def_grp(root_grp, "g", &g_grp);
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check_err(stat,__LINE__,__FILE__);
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stat = nc_def_grp(root_grp, "h", &h_grp);
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check_err(stat,__LINE__,__FILE__);
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{
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unsigned char econst;
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stat = nc_def_enum(root_grp, NC_UBYTE, "enum_t", &enum_t_typ);
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check_err(stat,__LINE__,__FILE__);
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econst = 0;
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stat = nc_insert_enum(root_grp, enum_t_typ, "Clear", &econst);
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check_err(stat,__LINE__,__FILE__);
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econst = 1;
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stat = nc_insert_enum(root_grp, enum_t_typ, "Cumulonimbus", &econst);
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check_err(stat,__LINE__,__FILE__);
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econst = 2;
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stat = nc_insert_enum(root_grp, enum_t_typ, "Stratus", &econst);
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check_err(stat,__LINE__,__FILE__);
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}
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stat = nc_def_opaque(root_grp, 11, "opaque_t", &opaque_t_typ);
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check_err(stat,__LINE__,__FILE__);
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stat = nc_def_vlen(root_grp, "vlen_t", NC_INT, &vlen_t_typ); check_err(stat,__LINE__,__FILE__);
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stat = nc_def_compound(g_grp, sizeof(g_cmpd_t), "cmpd_t", &g_cmpd_t_typ); check_err(stat,__LINE__,__FILE__);
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{
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stat = nc_insert_compound(g_grp, g_cmpd_t_typ, "f1", NC_COMPOUND_OFFSET(g_cmpd_t,f1), vlen_t_typ); check_err(stat,__LINE__,__FILE__);
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stat = nc_insert_compound(g_grp, g_cmpd_t_typ, "f2", NC_COMPOUND_OFFSET(g_cmpd_t,f2), enum_t_typ); check_err(stat,__LINE__,__FILE__);
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}
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/* define dimensions */
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stat = nc_def_dim(root_grp, "lat", lat_len, &lat_dim);
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check_err(stat,__LINE__,__FILE__);
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stat = nc_def_dim(root_grp, "lon", lon_len, &lon_dim);
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check_err(stat,__LINE__,__FILE__);
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stat = nc_def_dim(root_grp, "time", time_len, &time_dim);
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check_err(stat,__LINE__,__FILE__);
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/* define variables */
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lat_dims[0] = lat_dim;
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stat = nc_def_var(root_grp, "lat", NC_INT, RANK_lat, lat_dims, &lat_id);
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check_err(stat,__LINE__,__FILE__);
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lon_dims[0] = lon_dim;
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stat = nc_def_var(root_grp, "lon", NC_INT, RANK_lon, lon_dims, &lon_id);
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check_err(stat,__LINE__,__FILE__);
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time_dims[0] = time_dim;
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stat = nc_def_var(root_grp, "time", NC_INT, RANK_time, time_dims, &time_id);
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check_err(stat,__LINE__,__FILE__);
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Z_dims[0] = time_dim;
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Z_dims[1] = lat_dim;
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Z_dims[2] = lon_dim;
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stat = nc_def_var(root_grp, "Z", NC_FLOAT, RANK_Z, Z_dims, &Z_id);
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check_err(stat,__LINE__,__FILE__);
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t_dims[0] = time_dim;
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t_dims[1] = lat_dim;
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t_dims[2] = lon_dim;
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stat = nc_def_var(root_grp, "t", NC_FLOAT, RANK_t, t_dims, &t_id);
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check_err(stat,__LINE__,__FILE__);
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p_dims[0] = time_dim;
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p_dims[1] = lat_dim;
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p_dims[2] = lon_dim;
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stat = nc_def_var(root_grp, "p", NC_DOUBLE, RANK_p, p_dims, &p_id);
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check_err(stat,__LINE__,__FILE__);
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rh_dims[0] = time_dim;
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rh_dims[1] = lat_dim;
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rh_dims[2] = lon_dim;
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stat = nc_def_var(root_grp, "rh", NC_INT, RANK_rh, rh_dims, &rh_id);
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check_err(stat,__LINE__,__FILE__);
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country_dims[0] = time_dim;
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country_dims[1] = lat_dim;
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country_dims[2] = lon_dim;
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stat = nc_def_var(root_grp, "country", NC_STRING, RANK_country, country_dims, &country_id);
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check_err(stat,__LINE__,__FILE__);
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stat = nc_def_var(root_grp, "tag", NC_UBYTE, RANK_tag, 0, &tag_id);
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check_err(stat,__LINE__,__FILE__);
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stat = nc_def_var(h_grp, "compoundvar", g_cmpd_t_typ, RANK_h_compoundvar, 0, &h_compoundvar_id);
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check_err(stat,__LINE__,__FILE__);
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/* assign global attributes */
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{
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static const int vlen_2[] = {17, 18, 19} ;
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static const vlen_t globalatt_att[1] = {{3, (void*)vlen_2}} ;
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stat = nc_put_att(root_grp, NC_GLOBAL, "globalatt", vlen_t_typ, 1, globalatt_att);
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check_err(stat,__LINE__,__FILE__);
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}
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/* assign per-variable attributes */
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{
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stat = nc_put_att_text(root_grp, lat_id, "long_name", 8, "latitude");
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check_err(stat,__LINE__,__FILE__);
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}
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{
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stat = nc_put_att_text(root_grp, lat_id, "units", 13, "degrees_north");
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check_err(stat,__LINE__,__FILE__);
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}
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{
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stat = nc_put_att_text(root_grp, lon_id, "long_name", 9, "longitude");
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check_err(stat,__LINE__,__FILE__);
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}
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{
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stat = nc_put_att_text(root_grp, lon_id, "units", 12, "degrees_east");
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check_err(stat,__LINE__,__FILE__);
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}
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{
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stat = nc_put_att_text(root_grp, time_id, "units", 31, "seconds since 1992-1-1 00:00:00");
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check_err(stat,__LINE__,__FILE__);
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}
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{
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static const char* Z_units_att[1] = {"geopotential meters"} ;
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stat = nc_put_att_string(root_grp, Z_id, "units", 1, Z_units_att); check_err(stat,__LINE__,__FILE__);
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}
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{
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static const float Z_valid_range_att[2] = {((float)0), ((float)5000)} ;
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stat = nc_put_att_float(root_grp, Z_id, "valid_range", NC_FLOAT, 2, Z_valid_range_att);
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check_err(stat,__LINE__,__FILE__);
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}
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{
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static const double p_FillValue_att[1] = {((double)-9999)} ;
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stat = nc_put_att_double(root_grp, p_id, "_FillValue", NC_DOUBLE, 1, p_FillValue_att);
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check_err(stat,__LINE__,__FILE__);
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}
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{
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static const int rh_FillValue_att[1] = {-1} ;
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stat = nc_put_att_int(root_grp, rh_id, "_FillValue", NC_INT, 1, rh_FillValue_att);
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check_err(stat,__LINE__,__FILE__);
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}
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/* leave define mode */
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stat = nc_enddef (root_grp);
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check_err(stat,__LINE__,__FILE__);
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/* assign variable data */
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{
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int lat_data[10] = {0, 10, 20, 30, 40, 50, 60, 70, 80, 90} ;
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size_t lat_startset[1] = {0} ;
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size_t lat_countset[1] = {10};
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stat = nc_put_vara(root_grp, lat_id, lat_startset, lat_countset, lat_data);
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check_err(stat,__LINE__,__FILE__);
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}
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{
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int lon_data[5] = {-140, -118, -96, -84, -52} ;
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size_t lon_startset[1] = {0} ;
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size_t lon_countset[1] = {5};
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stat = nc_put_vara(root_grp, lon_id, lon_startset, lon_countset, lon_data);
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check_err(stat,__LINE__,__FILE__);
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}
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{
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static const int vlen_10[] = {3, 4, 5} ;
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size_t zero = 0;
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static g_cmpd_t h_compoundvar_data[1] = {{{3, (void*)vlen_10}, 2}};
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stat = nc_put_var1(h_grp, h_compoundvar_id, &zero, h_compoundvar_data);
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check_err(stat,__LINE__,__FILE__);
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}
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stat = nc_close(root_grp);
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check_err(stat,__LINE__,__FILE__);
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return 0;
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}
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