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[netCDF #YFO-861586]: nc_inq crashes
- Subject: [netCDF #YFO-861586]: nc_inq crashes
- Date: Tue, 29 Nov 2016 13:26:47 -0700
Yes, attached is the modified program. One gotcha-
I used a local .nc file since I did not have your original file.
=Dennis Heimbigner
Unidata
Ticket Details
===================
Ticket ID: YFO-861586
Department: Support netCDF
Priority: Normal
Status: Open
===================
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#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <ctype.h>
#include <string.h>
#include "netcdf.h"
#if 0
#include "hdf.h"
#include "mfhdf.h"
#else
#define int32 int
#define int16 short
#endif
/* Defines for processing */
#define CLIMATE_NDIMS 3
#define CLIMATE_NVARS 4
#define CLIMATE_XDIM_NAME "lon"
#define CLIMATE_YDIM_NAME "lat"
#define CLIMATE_TDIM_NAME "time"
/* Prototypes for accessory functions */
int copy_sds (int ncid, int nvars, size_t dimsizes[], char *var_name,
int32 first_time_index, int32 sdout_id, int verbose);
int get_size (nc_type data_type);
char *get_dt_string (nc_type data_type);
int32 get_hdf_dt (nc_type data_type);
/******************************************************************************
METHOD: main
PURPOSE: Handles the end to end processing of the annual NCEP input files and
repackages them to output daily HDF files (for the user-specified DOY),
containing multiple NCEP variables (air temp, precipitable water,
surface pressure). Global attributes are copied to the new HDF file. The
lat/long dimensions are also copied, along with their attributes.
RETURN VALUE:
Type = int
Value Description
----- -----------
-1 Error processing
-99 Error reading the input NCEP file
0 Successful processing
HISTORY:
Date Programmer Reason
---------- --------------- -------------------------------------
10/27/2014 Gail Schmidt Modified original application to read the new
netCDF4 files (vs. netCDF3 files) from NOAA/NCEP.
Modifications also included the need to handle
new data types for the NCEP variables.
NOTES:
******************************************************************************/
int main(int argc,char **argv) {
int32 sdout_id; /* HDF ID for output file */
int verbose; /* should status messages be written? */
int index; /* index for variables and attributes */
size_t start[MAX_VAR_DIMS], cnt[MAX_VAR_DIMS];
int32 first_time_index; /* location in the time dimension for the 3D
variable to start reading (-1 if this isn't
one of the 3D variables) */
char name[MAX_NC_NAME]; /* attribute name */
void *buffer = NULL; /* buffer for reading attribute values */
double *timebuff = NULL; /* array of time values */
int write_metadata; /* should the global metadata and lat/long
dimensions be written to the output HDF file? */
int doy; /* DOY for the current run */
int base_date[3]; /* base date for NCEP file (year, month, day) */
/* netCDF input vars */
char varname[MAX_NC_NAME+1]; /* var names as read from netCDF file */
char dimname[MAX_NC_NAME+1]; /* dim names as read from netCDF file */
int ncid; /* netCDF ID */
int ndims; /* number of input dimensions in netCDF file */
int nvars; /* number of variables in the netCDF file */
int primary_index; /* index of the primary variable (time) */
int nb_globattrs; /* number of global attributes in netCDF file */
int var_ndims; /* num dims for each var */
int var_dimids[MAX_VAR_DIMS]; /* array for the dimension IDs */
int var_natts; /* number of var attributes */
nc_type data_type; /* data type for each variable */
size_t dimsizes[MAX_VAR_DIMS]; /* dimension sizes */
size_t count; /* count of the attributes */
if (argc != 4) {
fprintf (stderr, "usage: %s <input> <output> <doy>\n", argv[0]);
exit(-1);
}
verbose = 1;
/****
open input netCDF4 file
****/
if (nc_open (argv[1], NC_NOWRITE, &ncid)) {
fprintf (stderr, "Error opening netCDF file: %s\n", argv[1]);
exit(-99);
}
/****
check and open output, if the file doesn't exist then create it and
set the write metadata flag so that the file attributes and lat/long
dimensions are written
****/
write_metadata = 0;
sdout_id = 0;
#if 0
if ((sdout_id = SDstart(argv[2], DFACC_RDONLY)) < 0) {
if ((sdout_id = SDstart(argv[2], DFACC_CREATE)) < 0) {
fprintf (stderr, "can't create output %s\n", argv[2]);
exit(-1);
}
write_metadata = 1;
} else {
SDend (sdout_id);
if ((sdout_id = SDstart (argv[2], DFACC_WRITE)) < 0) {
fprintf (stderr, "can't open output %s\n", argv[2]);
exit(-1);
}
}
doy = (int16) atoi (argv[3]);
#endif
doy = 0;
/****
determine how many netCDF variables, dimensions, and global attributes
are in the file; also the dimension id of the unlimited dimension, if
there is one.
****/
if (nc_inq (ncid, &ndims, &nvars, &nb_globattrs, NULL)) {
fprintf (stderr, "Error inquiring about the variables, dimensions, "
"global attributes, etc. for the netCDF file: %s\n", argv[1]);
exit(-1);
}
if (verbose) {
printf ("Number of global attributes = %d\n",nb_globattrs);
printf ("Number of variables = %d\n", nvars);
printf ("Number of dimensions = %d\n", ndims);
}
/****
Get information about each of the dimensions
****/
for (index = 0; index < ndims; index++) {
if (nc_inq_dim (ncid, index, dimname, &dimsizes[index])) {
fprintf (stderr, "Error inquiring about dimension %d", index);
exit(-1);
}
printf ("Dimension %d: %s - %d\n", index, dimname,
(int) dimsizes[index]);
}
/****
Copy global attributes and lat/long dimensions to output if creating
a new file
****/
if (write_metadata) {
for (index = 0; index < nb_globattrs; index++) {
if (nc_inq_attname (ncid, NC_GLOBAL, index, name)) {
fprintf (stderr, "Error inquiring about global attribute "
"%d (0-based)\n", index);
exit(-1);
}
if (nc_inq_att (ncid, NC_GLOBAL, name, &data_type, &count) == -1) {
fprintf (stderr, "Error inquiring about global attribute "
"%s\n", name);
exit(-1);
}
#ifdef DEBUG
if (verbose)
printf ("attribute #%d = %s (%s - %d bytes) size = %d\n",
index, name, get_dt_string (data_type),
get_size (data_type), (int) count);
#endif
/* Allocate a buffer to hold the attribute data. */
buffer = malloc ((int) count * get_size(data_type));
if (buffer == NULL) {
fprintf (stderr, "Error allocating memory for global attr "
"%s\n", name);
exit(-1);
}
/* Read the attribute data. */
if (nc_get_att (ncid, NC_GLOBAL, name, buffer) != NC_NOERR) {
fprintf (stderr, "Error getting global attribute %s\n", name);
exit(-1);
}
/* Write the attribute data. */
#if 0
if (SDsetattr (sdout_id, name, get_hdf_dt (data_type), (int) count,
buffer) < 0) {
fprintf (stderr, "Error writing global attribute %s\n", name);
exit(-1);
}
#endif
/* Free buffer */
free (buffer);
} /* end for */
/* Get information about the variables in the file */
primary_index = -1; /* initialize index to invalid value */
for (index = 0; index < nvars; index++) {
if (nc_inq_var (ncid, index, varname, &data_type, &var_ndims,
var_dimids, &var_natts)) {
fprintf (stderr, "Error inquiring about variable %d\n", index);
exit(-1);
}
if (verbose) {
printf ("Variable %d: %s\n", index, varname);
printf (" ndims - %d\n", var_ndims);
printf (" natts - %d\n", var_natts);
}
/* If this variable is the time variable, then store the index */
if (!strcmp (varname, CLIMATE_TDIM_NAME))
primary_index = index;
}
/* Make sure the "time" variable was found */
if (primary_index == -1) {
fprintf (stderr, "%s variable was not found in the netCDF "
"dataset.\n", CLIMATE_TDIM_NAME);
exit(-1);
}
/****
Determine the base_date of this file by reading the time variable
this is a double variable.
****/
if (nc_inq_var (ncid, primary_index, varname, &data_type, &var_ndims,
var_dimids, &var_natts)) {
fprintf (stderr, "Error inquiring about variable %d\n",
primary_index);
exit(-1);
}
if (data_type != NC_DOUBLE) {
fprintf (stderr, "Error: the %s variable is expected to be "
"a double, but it's %s\n", CLIMATE_TDIM_NAME,
get_dt_string (data_type));
exit(-1);
}
timebuff = malloc (dimsizes[var_dimids[0]] * sizeof (double));
if (timebuff == NULL) {
fprintf (stderr, "Error allocating memory for timebuff\n");
exit(-1);
}
start[0] = 0;
cnt[0] = var_dimids[0];
if (nc_get_vara_double (ncid, primary_index, start, cnt, timebuff)) {
fprintf (stderr, "Error reading data from %s variable\n",
CLIMATE_TDIM_NAME);
exit(-1);
}
/* compute the year using the first time value in the file; these
values represent hours since 1800-01-01 00:00:0.0 */
base_date[0] = (int16) (timebuff[0] / 8765.81277) + 1800;
printf ("year %d\n", base_date[0]);
base_date[1] = 1;
base_date[2] = 1;
/****
Write base_date and Day Of Year to output
****/
#if 0
if (SDsetattr (sdout_id, "base_date", DFNT_INT16, 3, &base_date) < 0) {
fprintf (stderr, "Error writing global attribute base_date\n");
exit(-1);
}
if (SDsetattr (sdout_id, "Day Of Year", DFNT_INT16, 1, &doy) < 0) {
fprintf (stderr, "Error writing global attribute Day of Year\n");
exit(-1);
}
#endif
/****
Copy lat/lon SDS
****/
#if 0
if (copy_sds (ncid, nvars, dimsizes, CLIMATE_YDIM_NAME, -1, sdout_id,
verbose)) {
fprintf (stderr, "ERROR: couldn't copy SDS %s ... ABORT\n",
CLIMATE_YDIM_NAME);
exit(-1);
}
if (copy_sds (ncid, nvars, dimsizes, CLIMATE_XDIM_NAME, -1, sdout_id,
verbose)) {
fprintf (stderr, "ERROR: couldn't copy SDS %s ... ABORT\n",
CLIMATE_XDIM_NAME);
exit(-1);
}
#endif
} /* end write metadata */
if (verbose)
printf ("Number of variables = %d\n", nvars);
/****
Loop over variables, get name and number of attributes for each one
****/
for (index = 0; index < nvars; index++) {
if (nc_inq_var (ncid, index, varname, &data_type, &var_ndims,
var_dimids, &var_natts)) {
fprintf (stderr, "Error inquiring about variable %d\n", index);
exit(-1);
}
if (!strcmp (varname, "pres") || !strcmp (varname, "pr_wtr") ||
!strcmp (varname, "slp") || !strcmp (varname, "air")) {
if (verbose) {
printf ("SDS #%d = %s (%s - %d bytes) Rank = %d "
"Nb Attrs = %d\n", index, varname,
get_dt_string (data_type), get_size (data_type),
var_ndims, var_natts);
printf("\tDims = ");
for (index = 0; index < var_ndims; index++) {
if (index == 0)
printf ("%d", (int) dimsizes[var_dimids[index]]);
else
printf ("x%d", (int) dimsizes[var_dimids[index]]);
}
printf ("\n");
}
/* Copy this SDS, starting at the specified index position within
the netCDF file for the time dimension */
first_time_index = (doy - 1) * 4;
if (copy_sds (ncid, nvars, dimsizes, varname, first_time_index,
sdout_id, verbose)) {
fprintf (stderr, "ERROR: couldn't copy SDS %s ... ABORT\n",
varname);
exit(-1);
}
}
} /* end for */
/****
Close input & output
****/
nc_close (ncid);
#if 0
SDend (sdout_id);
#endif
return 0;
}
/******************************************************************************
METHOD: copy_sds
PURPOSE: Copies the specified netCDF variable to the output HDF file as a
new SDS. Copies the attributes to the SDS as well as sets the dimension
names.
RETURN VALUE:
Type = int
Value Description
----- -----------
-1 Error processing
0 Successful processing
HISTORY:
Date Programmer Reason
---------- --------------- -------------------------------------
10/27/2014 Gail Schmidt Modified original application to read the new
netCDF4 files (vs. netCDF3 files) from NOAA/NCEP.
Modifications also included the need to handle
new data types for the NCEP variables.
11/13/2014 Gail Schmidt Added a check to the variable data type to make
sure it is a floating point, just to make sure the
old NCEP int16 products aren't being processed.
NOTES:
1. The NCEP variables are global datasets. The starting point for the
longitudinal values is 0 degrees. The output HDF files need these variables
to start at -180. So, some minor data manipulation is done after reading
the NCEP variables and before writing them to the output HDF file.
******************************************************************************/
int copy_sds
(
int ncid, /* I: netCDF file ID for input */
int nvars, /* I: number of variables in netCDF file */
size_t dimsizes[], /* I: dimension sizes for netCDF file */
char *var_name, /* I: name of the variable to be copied to the
output file */
int32 first_time_index, /* I: location in the time dimension for the 3D
variable to start reading */
int32 sdout_id, /* I: HDF file ID for output */
int verbose /* I: should status messages be written? */
)
{
int32 sdsout_id, start_hdf[MAX_VAR_DIMS], edge_hdf[MAX_VAR_DIMS];
int32 dimout_id;
int32 hdf_dim_sizes[MAX_VAR_DIMS];
int buf_size;
int il;
int index; /* index for variables and attributes */
size_t start[MAX_VAR_DIMS], cnt[MAX_VAR_DIMS];
char name[MAX_NC_NAME]; /* attribute name */
char *buffer = NULL; /* buffer for reading attribute values */
char *oneline = NULL; /* one line of input data */
/* netCDF input vars */
char varname[MAX_NC_NAME+1]; /* var names as read from netCDF file */
int primary_index; /* index of the primary variable (time) */
int var_ndims; /* num dims for each var */
int var_dimids[MAX_VAR_DIMS]; /* array for the dimension IDs */
int var_natts; /* number of var attributes */
nc_type data_type; /* data type for each variable */
size_t count; /* count of the attributes */
/* Get information about the variables in the file */
primary_index = -1; /* initialize index to invalid value */
for (index = 0; index < nvars; index++) {
if (nc_inq_var (ncid, index, varname, &data_type, &var_ndims,
var_dimids, &var_natts)) {
fprintf (stderr, "Error inquiring about variable %d\n", index);
return (-1);
}
/* If this variable is the specified variable, then store the index */
if (!strcmp (varname, var_name)) {
primary_index = index;
break;
}
}
/* Make sure the variable was found */
if (primary_index == -1) {
fprintf (stderr, "%s variable was not found in the netCDF "
"dataset.\n", var_name);
return (-1);
}
/* If this is not one of the lat/long dimensions, then it's our NCEP
variable. In that case, we need to make sure this is a floating point
data type and not int16 as the previous NCEP products were. */
if (strcmp (var_name, CLIMATE_XDIM_NAME) &&
strcmp (var_name, CLIMATE_YDIM_NAME) &&
strcmp (var_name, CLIMATE_TDIM_NAME)) {
if (data_type != NC_FLOAT) {
fprintf (stderr, "Error: Non-dimensional variable (%s) should be "
"floating point.\n", var_name);
return -1;
}
}
/* Set up the dimensions of the output HDF SDS */
for (index = 0; index < var_ndims; index++)
hdf_dim_sizes[index] = dimsizes[var_dimids[index]];
/* If this is not one of the lat/long dimensions, then it's our NCEP
variable. In that case, we are only pulling data for the current DOY
which is 4 values which represent data once every 6 hours. */
if (strcmp (var_name, CLIMATE_XDIM_NAME) &&
strcmp (var_name, CLIMATE_YDIM_NAME) &&
strcmp (var_name, CLIMATE_TDIM_NAME))
hdf_dim_sizes[0] = 4;
/* Create an SDS in the output file for this variable */
#if 0
if ((sdsout_id = SDcreate (sdout_id, var_name, get_hdf_dt (data_type),
var_ndims, hdf_dim_sizes)) < 0) {
fprintf (stderr, "Error creating SDS in output HDF file for %s\n",
var_name);
return -1;
}
#endif
/****
Read and write the data. Dimensions get read and written in whole.
The NCEP variables only read and write the four hours pertaining to the
specified DOY.
****/
if (first_time_index < 0) {
/* Determine the size of the buffer needed for all the dimensions
and data type */
buf_size = 1;
for (index = 0; index < var_ndims; index++) {
buf_size *= hdf_dim_sizes[index];
start[index] = 0;
start_hdf[index] = 0;
cnt[index] = hdf_dim_sizes[index];
edge_hdf[index] = hdf_dim_sizes[index];
}
buf_size *= get_size (data_type);
/* Allocate memory */
buffer = malloc (buf_size);
if (buffer == NULL) {
fprintf (stderr, "Error allocating memory for %s\n", var_name);
return (-1);
}
/* Read the data from the netCDF file */
if (nc_get_vara (ncid, primary_index, start, cnt, buffer)) {
fprintf (stderr, "Error reading data from %s variable\n", var_name);
return (-1);
}
/* Write the data to the HDF file */
#if 0
if (SDwritedata (sdsout_id, start_hdf, NULL, edge_hdf, buffer) < 0) {
fprintf (stderr, "Error writing %s data to SDS\n", var_name);
return (-1);
}
#endif
/* Free the memory */
free(buffer);
} else {
/* Determine the size of the buffer needed for the lat/long dimensions
and data type */
buf_size = hdf_dim_sizes[1] * hdf_dim_sizes[2] * get_size (data_type);
/* Allocate memory */
buffer = malloc (buf_size);
if (buffer == NULL) {
fprintf (stderr, "Error allocating memory for %s\n", var_name);
return (-1);
}
/* Allocate memory for one line */
oneline = malloc (hdf_dim_sizes[2] * get_size (data_type));
if (oneline == NULL) {
fprintf (stderr, "Error allocating memory for %s\n", var_name);
return (-1);
}
/* Set up the start and edge arrays for reading and writing one line
of time data at a time */
start[0] = first_time_index;
start_hdf[0] = 0;
cnt[0] = 1;
edge_hdf[0] = 1;
start[1] = 0;
start_hdf[1] = 0;
cnt[1] = hdf_dim_sizes[1];
edge_hdf[1] = hdf_dim_sizes[1];
start[2] = 0;
start_hdf[2] = 0;
cnt[2] = hdf_dim_sizes[2];
edge_hdf[2] = hdf_dim_sizes[2];
/* Loop through the four time datasets for the specified DOY, using
the first_time_index as the start of the current DOY */
for (index = 0; index < 4; index++) {
/* Read the data from the netCDF file */
if (nc_get_vara (ncid, primary_index, start, cnt, buffer)) {
fprintf (stderr, "Error reading data from %s variable for time "
"%d\n", var_name, index);
return (-1);
}
/* Rearrange the NCEP variable data values since they start at
0 degrees and we want to write the global values starting at
-180 degrees */
for (il = 0; il < hdf_dim_sizes[1]; il++) {
memcpy (oneline,
&buffer[(il*hdf_dim_sizes[2]+hdf_dim_sizes[2]/2)*get_size(data_type)],
(hdf_dim_sizes[2]/2)*get_size(data_type));
memcpy(&oneline[(hdf_dim_sizes[2]/2)*get_size(data_type)],
&buffer[il*hdf_dim_sizes[2]*get_size(data_type)],
(hdf_dim_sizes[2]-hdf_dim_sizes[2]/2)*get_size(data_type));
memcpy(&buffer[il*hdf_dim_sizes[2]*get_size(data_type)],
oneline, hdf_dim_sizes[2]*get_size(data_type));
}
/* Write the data to the HDF file */
#if 0
if (SDwritedata (sdsout_id, start_hdf, NULL, edge_hdf, buffer)
< 0) {
fprintf (stderr, "Error writing %s data to SDS\n", var_name);
return (-1);
}
#endif
/* Increment the start pointers for time dimension */
start[0]++;
start_hdf[0]++;
}
/* Free the memory */
free (buffer);
free (oneline);
}
/****
Loop over SDS attributes and copy
****/
for (index = 0; index < var_natts; index++) {
if (nc_inq_attname (ncid, primary_index, index, name)) {
fprintf (stderr, "Error inquiring about variable attribute %d "
"(0-based)\n", index);
return (-1);
}
if (nc_inq_att (ncid, primary_index, name, &data_type, &count) == -1) {
fprintf (stderr, "Error inquiring about variable attribute %s\n",
name);
return (-1);
}
#ifdef DEBUG
if (verbose)
printf ("attribute #%d = %s (%s - %d bytes) size = %d\n",
index, name, get_dt_string (data_type),
get_size (data_type), (int) count);
#endif
/* Allocate a buffer to hold the attribute data. */
buffer = malloc ((int) count * get_size(data_type));
if (buffer == NULL) {
fprintf (stderr, "Error allocating memory for attr %s\n", name);
return (-1);
}
/* Read the attribute data. */
if (nc_get_att (ncid, primary_index, name, buffer) != NC_NOERR) {
fprintf (stderr, "Error getting variable attribute %s\n", name);
return (-1);
}
#if 0
/* Write the attribute data. */
if (SDsetattr (sdsout_id, name, get_hdf_dt (data_type), (int) count,
buffer) < 0) {
fprintf (stderr, "Error writing SDS attribute %s\n", name);
return (-1);
}
#endif
/* Free buffer */
free (buffer);
} /* end for */
/****
Set the SDS dimensions. The XDIM, YDIM, and TDIM variables are 1D.
The others are 3D.
****/
#if 0
if (!strcmp (var_name, CLIMATE_XDIM_NAME)) {
dimout_id = SDgetdimid (sdsout_id, 0);
SDsetdimname (dimout_id, CLIMATE_XDIM_NAME);
}
else if (!strcmp (var_name, CLIMATE_YDIM_NAME)) {
dimout_id = SDgetdimid (sdsout_id, 0);
SDsetdimname (dimout_id, CLIMATE_YDIM_NAME);
}
else if (!strcmp (var_name, CLIMATE_TDIM_NAME)) {
dimout_id = SDgetdimid (sdsout_id, 0);
SDsetdimname (dimout_id, CLIMATE_TDIM_NAME);
}
else {
dimout_id = SDgetdimid (sdsout_id, 0);
SDsetdimname (dimout_id, CLIMATE_TDIM_NAME);
dimout_id = SDgetdimid (sdsout_id, 1);
SDsetdimname (dimout_id, CLIMATE_YDIM_NAME);
dimout_id = SDgetdimid (sdsout_id, 2);
SDsetdimname (dimout_id, CLIMATE_XDIM_NAME);
}
#endif
/****
Close SDS
****/
#if 0
SDendaccess(sdsout_id);
#endif
return 0;
}
/******************************************************************************
METHOD: get_size
PURPOSE: Determine the size (in bytes) of the netCDF data type specified
RETURN VALUE:
Type = int
Value Description
----- -----------
-99 Data type isn't supported or it was NAT (Not a Type)
Else Size of the dataype (in bytes)
HISTORY:
Date Programmer Reason
---------- --------------- -------------------------------------
10/27/2014 Gail Schmidt Original development
NOTES:
******************************************************************************/
int get_size
(
nc_type data_type /* I: netCDF data type for each variable */
)
{
switch (data_type)
{
case NC_BYTE:
case NC_UBYTE:
case NC_CHAR:
return 1;
case NC_SHORT:
case NC_USHORT:
return 2;
case NC_INT: /* covers NC_LONG which is deprecated */
case NC_UINT:
return 4;
case NC_INT64:
case NC_UINT64:
return 8;
case NC_FLOAT:
return 4;
case NC_DOUBLE:
return 8;
default:
return -99;
}
}
/******************************************************************************
METHOD: get_size
PURPOSE: Determine the data type string of the netCDF data type specified
RETURN VALUE:
Type = int
Value Description
----- -----------
"Unsupported data type" Data type not supported
Else String for the input data type
HISTORY:
Date Programmer Reason
---------- --------------- -------------------------------------
10/27/2014 Gail Schmidt Original development
NOTES:
******************************************************************************/
char *get_dt_string
(
nc_type data_type /* I: netCDF data type for each variable */
)
{
switch (data_type)
{
case NC_BYTE:
return "NC_BYTE";
case NC_UBYTE:
return "NC_UBYTE";
case NC_CHAR:
return "NC_CHAR";
case NC_SHORT:
return "NC_SHORT";
case NC_USHORT:
return "NC_USHORT";
case NC_INT: /* covers NC_LONG which is deprecated */
return "NC_INT";
case NC_UINT:
return "NC_UINT";
case NC_INT64:
return "NC_INT64";
case NC_UINT64:
return "NC_UINT64";
case NC_FLOAT:
return "NC_FLOAT";
case NC_DOUBLE:
return "NC_DOUBLE";
case NC_NAT:
return "NC_NAT";
default:
return "Unsupported data type";
}
}
/******************************************************************************
METHOD: get_size
PURPOSE: Determine the HDF data type for the netCDF data type specified
RETURN VALUE:
Type = int
Value Description
----- -----------
-99 Data type isn't supported or it was NAT (Not a Type)
Else HDF data type
HISTORY:
Date Programmer Reason
---------- --------------- -------------------------------------
10/27/2014 Gail Schmidt Original development
NOTES:
******************************************************************************/
int32 get_hdf_dt
(
nc_type data_type /* I: netCDF data type for each variable */
)
{
switch (data_type)
{
case NC_BYTE:
return NC_BYTE;
case NC_UBYTE:
return NC_UBYTE;
case NC_CHAR:
return NC_CHAR;
case NC_SHORT:
return NC_SHORT;
case NC_USHORT:
return NC_USHORT;
case NC_INT: /* covers NC_LONG which is deprecated */
return NC_INT;
case NC_UINT:
return NC_UINT;
case NC_INT64:
return NC_INT64;
case NC_UINT64:
return NC_UINT64;
case NC_FLOAT:
return NC_FLOAT;
case NC_DOUBLE:
return NC_DOUBLE;
default:
return -99;
}
}