source: trunk/WRF.COMMON/WRFV2/external/io_grib1/test_write_grib.c

#include <stdio.h>
#include <stdlib.h>
#include "grib1_routines.h"

#define LATLON 0
#define LAMBERT 1
#define POLAR_STEREO 2
#define MERCATOR 3

main()
{
  int level;
  int projection;
  int xdim;
  int ydim;
  int grid_id;
  float center_lat, center_lon;
  float proj_central_lon;
  float dx, dy;
  int south;
  float latin1, latin2;
  float *data;
  int filefd;
  int error;
  char datestr[200];
  int i,j;
  float fcst_secs;
  int accum_period;
  int leveltype;
  int level2;  
  Grib1_Tables grib1_tables;
  int ret;
  int status;
  Grid_Info gridinfo;

  level = 9950;
  projection = LAMBERT;
  xdim = 422;
  ydim = 271;
  center_lat = 0.0;
  center_lon = 0.0;
  proj_central_lon = -100.0;
  dx = 12.0;
  dy = 12.0;
  south = 0;
  latin1 = 30.0;
  latin2 = 60.0;
  data = (float *)calloc(xdim*ydim,sizeof(float));
  fcst_secs = 360;
  accum_period = 0;
  leveltype = 119;
  level2 = 0;
  grid_id = 255;

  read_gribmap_("gribmap.txt",&grib1_tables,&ret);

  open_file_("test2.grb","w",&filefd,&error,9,1);
  strcpy(datestr,"2005-01-01_00:00:00");
  for (i=0; i< 1; i++) {
    for (j=0; j<xdim*ydim; j++) {
      /*
      data[j] = rand()/RAND_MAX;
      */
      data[j] = j/(float)ydim;
    }
    fprintf(stderr,"Writing grib record %d\n",i);
    status = LOAD_GRID_INFO("TSK", datestr, &leveltype, &level, 
                   &level2, &fcst_secs, &accum_period, &grid_id, &projection, 
                   &xdim, &ydim, &center_lat, &center_lon, &dx, &dy, 
                   &proj_central_lon, &south, &latin1, &latin2,
                   &grib1_tables, &gridinfo, strlen("TSK"), strlen(datestr));
      
    WRITE_GRIB(&gridinfo, &filefd, data);
    /*
    status = WRITE_GRIB("ABC",&level,&level2,&leveltype,
                datestr,&fcst_secs,&accum_period,
                &projection,&grid_id,&xdim,&ydim,&center_lat,
                &center_lon,&proj_central_lon,&dx,&dy,&south,&latin1,
                &latin2,data,&grib_table_info,&filefd,8);
    */
    fprintf(stderr,"status: %d\n",status);

  }

  FREE_GRIBMAP(&grib1_tables);
}