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/*
----------------------------------------------------------------------------
| Copyright (C) 2002 Emergent IT Inc. and Raytheon Systems Company |
----------------------------------------------------------------------------
*/
#include <HE5_HdfEosDef.h>
/* ------------------------------------------------------------------- */
/* In this program we retrieve information about (1) dimensions, (2) */
/* za fields, and (3) the global/group/local attributes */
/* ------------------------------------------------------------------- */
int main()
{
herr_t status = FAIL;
int i, *rank, chunk_rank;
hid_t zafid = FAIL, ZAid = FAIL;
hid_t ntype[10];
hid_t dtype = FAIL;
long ndims, strbufsize, nflds, nattr;
hsize_t dimsize;
hsize_t *dims, chunk_dim[8];
hsize_t n, nelem = 0;
char version[80] = {0};
char *dimname, *fieldlist;
char attrlist[80];
/* Open the ZA HDF-EOS File "ZA.he5" for reading only */
/* ------------------------------------------------- */
zafid = HE5_ZAopen("ZA.he5", H5F_ACC_RDONLY);
if (zafid != FAIL)
{
HE5_EHgetversion(zafid, version);
printf("HDF-EOS library version: \"%s\" \n", version);
/* Attach the ZA "ZA1" */
/* ------------------- */
ZAid = HE5_ZAattach(zafid, "ZA1");
if (ZAid != FAIL)
{
/* Inquire Dimensions */
/* ------------------ */
ndims = HE5_ZAnentries(ZAid, HE5_HDFE_NENTDIM, &strbufsize);
dims = (hsize_t *) calloc(ndims, sizeof(hsize_t));
dimname = (char *) calloc(strbufsize + 1, 1);
ndims = HE5_ZAinqdims(ZAid, dimname, dims);
printf("Dimension list: %s\n", dimname);
for (i = 0; i < ndims; i++)
printf("dim size: %li \n", (long)dims[i]);
free(dims);
free(dimname);
/* Inquire Data Fields */
/* ------------------- */
nflds = HE5_ZAnentries(ZAid, HE5_HDFE_NENTDFLD, &strbufsize);
rank = (int *) calloc(nflds, sizeof(int));
fieldlist = (char *) calloc(strbufsize + 1, 1);
nflds = HE5_ZAinquire(ZAid, fieldlist, rank, ntype);
printf("data fields: %s\n", fieldlist);
for (i = 0; i < nflds; i++)
printf("Rank: %d Data type: %ld\n", rank[i], (long) ntype[i]);
free(rank);
free(fieldlist);
/* Get info on "MyTrack1" dim */
/* -------------------------- */
dimsize = HE5_ZAdiminfo(ZAid, "MyTrack1");
printf("Size of MyTrack1: %lu\n", (unsigned long)dimsize);
dtype = FAIL;
/* Get info about Global Attributes */
/* -------------------------------- */
printf("Global Attribute:\n");
status = HE5_ZAattrinfo(ZAid,"GlobalAttribute",&dtype, &nelem);
printf("\t\t Data type: %ld\n", (long) dtype);
printf("\t\t Number of elements: %lu \n", (unsigned long)nelem);
nelem = 0;
dtype = FAIL;
/* Get info about Group Attributes */
/* ------------------------------- */
printf("Group Attribute:\n");
status = HE5_ZAgrpattrinfo(ZAid,"GroupAttribute",&dtype,&nelem);
printf("\t\t Data type: %ld\n", (long) dtype);
printf("\t\t Number of elements: %lu \n", (unsigned long)nelem);
nelem = 777;
dtype = FAIL;
/* Get info about Local Attributes */
/* ------------------------------- */
printf("Local Attribute:\n");
status = HE5_ZAlocattrinfo(ZAid,"Density", "LocalAttribute",&dtype,&nelem);
printf("\t\t Data type: %ld\n", (long) dtype);
printf("\t\t Number of elements: %lu \n", (unsigned long)nelem);
/* Inquire Global Attributes */
/* ------------------------- */
printf("Global Attributes:\n");
nattr = HE5_ZAinqattrs(ZAid, NULL, &strbufsize);
printf("\t\t Number of attributes: %li \n", nattr);
printf("\t\t String length of attribute list: %li \n", strbufsize);
n = HE5_ZAinqattrs(ZAid, attrlist, &strbufsize);
printf("\t\t Attribute list: %s \n", attrlist);
/* Inquire Group Attributes */
/* ------------------------ */
strbufsize = 0;
printf("\n");
printf("Group Attributes:\n");
nattr = HE5_ZAinqgrpattrs(ZAid, NULL, &strbufsize);
printf("\t\t Number of attributes: %li \n", nattr);
printf("\t\t String length of attribute list: %li \n", strbufsize);
strcpy(attrlist,"");
nattr = HE5_ZAinqgrpattrs(ZAid, attrlist, &strbufsize);
printf("\t\t Attribute list: %s \n", attrlist);
/* Inquire Local Attributes */
/* ------------------------ */
strbufsize = 0;
printf("\n");
printf("Local Attributes:\n");
nattr = HE5_ZAinqlocattrs(ZAid, "Density", NULL, &strbufsize);
printf("\t\t Number of attributes: %li \n", nattr);
printf("\t\t String length of attribute list: %li \n", strbufsize);
strcpy(attrlist,"");
nattr = HE5_ZAinqlocattrs(ZAid, "Density", attrlist, &strbufsize);
printf("\t\t Attribute list: %s \n", attrlist);
status = HE5_ZAchunkinfo(ZAid,"Spectra",&chunk_rank,chunk_dim);
printf("\n");
printf("\t\t Spectra chunk_rank: %d\n", chunk_rank);
for (i = 0; i < chunk_rank; i++)
printf("\t\t Spectra chunk_dim dimension %d: %lu\n",i+1, (unsigned long)chunk_dim[i]);
}
}
status = HE5_ZAdetach(ZAid);
status = HE5_ZAclose(zafid);
return 0;
}
|
