//// [[Rcpp::export]]
int binlist(int x) {
int numbins = 0, *binnums = NULL;
int i;
int file_id,vdata_ref, vdata_id,numrecs,pvd_id;
char PARAM[] = "chlor_a";
initbin();
/* Open the HDF file. */
file_id = Hopen("S1998001.L3b_DAY_CHL.main", DFACC_READ, 0);
if(file_id == FAIL){
fprintf(stderr,"-E- %s line %d: Hopen(%s,DFACC_READ,0) failed.\n",
__FILE__,__LINE__,"S1998001.L3b_DAY_CHL.main");
return(EXIT_FAILURE);
}
/* Initialize the Vdata interface. */
if(Vstart(file_id) == FAIL){
fprintf(stderr,"-E- %s line %d: Vstart(%d) failed.\n",
__FILE__,__LINE__,file_id);
return(EXIT_FAILURE);
}
/* Open the "BinList" Vdata. */
vdata_ref = VSfind(file_id,"BinList");
if(vdata_ref == FAIL){
fprintf(stderr,"-E- %s line %d: VSfind(%d,\"BinList\") failed.\n",
__FILE__,__LINE__,file_id);
return(EXIT_FAILURE);
}
vdata_id = VSattach(file_id, vdata_ref, "r");
if(vdata_id == FAIL){
fprintf(stderr,"-E- %s line %d: VSattach(%d,%d,\"r\") failed.\n",
__FILE__,__LINE__,file_id,vdata_ref);
return(EXIT_FAILURE);
}
/* Find out how many bins are stored in this file. */
numrecs = VSelts(vdata_id);
if(numrecs == FAIL){
fprintf(stderr,"-E- %s line %d: VSelts(%d) failed.\n",
__FILE__,__LINE__,vdata_id);
return(EXIT_FAILURE);
}
// this doesn't seem to be necessary?
/* Set up to read the fields in the BinList Vdata records. */
// if(VSsetfields(vdata_id,BLIST_FIELDS) == FAIL){
// fprintf(stderr,"-E- %s line %d: VSsetfields(%d,%s) failed.\n",
// __FILE__,__LINE__,vdata_id,BLIST_FIELDS);
// return(EXIT_FAILURE);
// }
/* Open the parameter-specific Vdata. */
vdata_ref = VSfind(file_id,PARAM);
if(vdata_ref == 0){
fprintf(stderr,"-E- %s line %d: VSfind(%d,\"%s\") failed.\n",
__FILE__,__LINE__,file_id,PARAM);
return(EXIT_FAILURE);
}
pvd_id = VSattach(file_id, vdata_ref, "r");
if(pvd_id == FAIL){
fprintf(stderr,"-E- %s line %d: VSattach(%d,%d,\"r\") failed.\n",
__FILE__,__LINE__,file_id,vdata_ref);
return(EXIT_FAILURE);
}
/* Set up to read the fields in the parameter-specific Vdata records. */
{
int len;
len = 2*strlen(PARAM) + strlen("_sum,") + strlen("_sum_sq") + 1;
param_fields = (char *)malloc(len);
if(param_fields == NULL){
fprintf(stderr,"-E- %s line %d: Memory allocation failed.\n",
__FILE__,__LINE__);
return(EXIT_FAILURE);
}
strcpy(param_fields,PARAM);
strcat(param_fields,"_sum,");
strcat(param_fields,PARAM);
strcat(param_fields,"_sum_sq");
}
if(VSsetfields(pvd_id,param_fields) == FAIL){
fprintf(stderr,"-E- %s line %d: VSsetfields(%d,%s) failed.\n",
__FILE__,__LINE__,pvd_id,param_fields);
return(EXIT_FAILURE);
}
printf(param_fields);
printf("\n");
/* Output a header record to identify the fields written out below. */
printf("%80s%15.15s %15.15s\n"," ",PARAM,PARAM);
printf(" bin centerlat centerlon");
printf(" north south west east");
printf(" n N sum_obs sum_squared_obs weight");
printf(" time_trend_bits l2_flag_bits sel\n");
printf("------- --------- ----------");
printf(" --------- --------- ---------- ----------");
printf(" ---- --- --------------- --------------- ---------------");
printf(" ---------------- -------------------------------- ---\n");
// for(i = 0; i < numbins; i++){
for(i = 0; i < 10; i++){
int recno;
// recno = binsearch(binnums[i],vdata_id,numrecs);
recno = i;
if(recno >= 0){
double n,s,w,e,clat,clon;
/*
Read the sum and sum-of-squares for the
the specified parameter for this bin.
*/
if(VSseek(pvd_id,recno) == FAIL){
fprintf(stderr,"-E- %s line %d: VSseek(%d,%d) failed.\n",
__FILE__,__LINE__,pvd_id,recno);
return(EXIT_FAILURE);
}
if(VSread(pvd_id,paramrec,1,FULL_INTERLACE) != 1){
fprintf(stderr,"-E- %s line %d: ",__FILE__,__LINE__);
fprintf(stderr,"VSread(%d,paramrec,1,FULL_INTERLACE) failed.\n",
pvd_id);
return(EXIT_FAILURE);
}
/*
VSfpack() sets the global sum and sum_sq variables
via the paramptrs pointer array.
*/
if(
VSfpack(
pvd_id,_HDF_VSUNPACK,param_fields,paramrec,PREC_SIZE,1,NULL,paramptrs
)
== FAIL){
fprintf(stderr,"-E- %s line %d: ",__FILE__,__LINE__);
fprintf(stderr,"VSfpack(%d, ...) failed.\n", pvd_id);
return(EXIT_FAILURE);
}
/* Get the geographical coordinates associated with this bin. */
// bin2latlon(binnums[i],&clat,&clon);
// bin2bounds(binnums[i],&n,&s,&w,&e);
/* Output the results. */
// printf("%7d %9.5f %10.5f %9.5f %9.5f %10.5f %10.5f ",
// binnums[i],clat,clon,n,s,w,e);
// printf("%4d %3d ",nobs,nscenes);
// printf("% .8e % .8e % .8e ",sum,sum_sq,weights);
printf("% .8e % .8e % .8e ",sum,sum_sq,0.0);
// printf("%.16s %.32s ",bitstr16(time_rec),bitstr32(flags_set));
// printf("%3d",sel_cat);
printf("\n");
}
}
if(VSdetach(pvd_id) == FAIL){
fprintf(stderr,"-E- %s line %d: VSdetach(%d) failed.\n",
__FILE__,__LINE__,pvd_id);
return(EXIT_FAILURE);
}
if(VSdetach(vdata_id) == FAIL){
fprintf(stderr,"-E- %s line %d: VSdetach(%d) failed.\n",
__FILE__,__LINE__,vdata_id);
return(EXIT_FAILURE);
}
if(Vend(file_id) == FAIL){
fprintf(stderr,"-E- %s line %d: Vend(%d) failed.\n",
__FILE__,__LINE__,file_id);
return(EXIT_FAILURE);
}
if(Hclose(file_id) == FAIL){
fprintf(stderr,"-E- %s line %d: Hclose(%d) failed.\n",
__FILE__,__LINE__,file_id);
return(EXIT_FAILURE);
}
free(param_fields);
free(binnums);
return 2;
}
int main( )
{
/************************* Variable declaration **************************/
intn status_n; /* returned status for functions returning an intn */
int32 status_32, /* returned status for functions returning an int32 */
file_id, vdata_ref, vdata_id,
field_index, /* index of a field within the vdata */
n_vdattrs, /* number of vdata attributes */
n_fldattrs, /* number of field attributes */
vdata_type, /* to hold the type of vdata's attribute */
vdata_n_values,/* to hold the number of vdata's attribute values */
vdata_size, /* to hold the size of vdata's attribute values */
field_type, /* to hold the type of field's attribute */
field_n_values,/* to hold the number of field's attribute values */
field_size; /* to hold the size of field's attribute values */
char vd_attr[VATTR_N_VALUES] = {'A', 'B', 'C'};/* vdata attribute values*/
int32 fld_attr[FATTR_N_VALUES] = {2, 4, 6, 8}; /* field attribute values*/
char vattr_buf[VATTR_N_VALUES]; /* to hold vdata attribute's values */
int32 fattr_buf[FATTR_N_VALUES]; /* to hold field attribute's values */
char vattr_name[30], /* name of vdata attribute */
fattr_name[30]; /* name of field attribute */
/********************** End of variable declaration **********************/
/*
* Open the HDF file for writing.
*/
file_id = Hopen (FILE_NAME, DFACC_WRITE, 0);
/*
* Initialize the VS interface.
*/
status_n = Vstart (file_id);
/*
* Get the reference number of the vdata named VDATA_NAME.
*/
vdata_ref = VSfind (file_id, VDATA_NAME);
/*
* Attach to the vdata for writing.
*/
vdata_id = VSattach (file_id, vdata_ref, "w");
/*
* Attach an attribute to the vdata, i.e., indicated by the second parameter.
*/
status_n = VSsetattr (vdata_id, _HDF_VDATA, VATTR_NAME, DFNT_CHAR,
VATTR_N_VALUES, vd_attr);
/*
* Get the index of the field FIELD_NAME within the vdata.
*/
status_n = VSfindex (vdata_id, FIELD_NAME, &field_index);
/*
* Attach an attribute to the field field_index.
*/
status_n = VSsetattr (vdata_id, field_index, FATTR_NAME, DFNT_INT32,
FATTR_N_VALUES, fld_attr);
/*
* Get the number of attributes attached to the vdata's first
* field - should be 0.
*/
n_fldattrs = VSfnattrs (vdata_id, 0);
printf ( "Number of attributes of the first field of the vdata: %d\n",
n_fldattrs);
/*
* Get the number of attributes attached to the field specified by
* field_index - should be 1.
*/
n_fldattrs = VSfnattrs (vdata_id, field_index);
printf ( "Number of attributes of field %s: %d\n", FIELD_NAME, n_fldattrs);
/*
* Get the total number of the field's and vdata's attributes - should be 2.
*/
n_vdattrs = VSnattrs (vdata_id);
printf ( "Number of attributes of the vdata and its fields: %d\n",
n_vdattrs);
/*
* Get information about the vdata's first attribute, indicated
* by the third parameter which is the index of the attribute.
*/
status_n = VSattrinfo (vdata_id, _HDF_VDATA, 0, vattr_name,
&vdata_type, &vdata_n_values, &vdata_size);
/*
* Get information about the first attribute of the field specified by
* field_index.
*/
status_n = VSattrinfo (vdata_id, field_index, 0, fattr_name, &field_type,
&field_n_values, &field_size);
/*
* Get the vdata's first attribute.
*/
status_n = VSgetattr (vdata_id, _HDF_VDATA, 0, vattr_buf);
printf("Values of the vdata attribute = %c %c %c\n", vattr_buf[0],
vattr_buf[1], vattr_buf[2]);
/*
* Get the first attribute of the field specified by field_index.
*/
status_n = VSgetattr (vdata_id, field_index, 0, fattr_buf);
printf("Values of the field attribute = %d %d %d %d\n", fattr_buf[0],
fattr_buf[1], fattr_buf[2], fattr_buf[3]);
/*
* Terminate access to the vdata and to the VS interface, then close
* the HDF file.
*/
status_32 = VSdetach (vdata_id);
status_n = Vend (file_id);
status_32 = Hclose (file_id);
return 0;
}
int main( )
{
/************************* Variable declaration **************************/
intn status_n; /* returned status for functions returning an intn */
int32 status_32, /* returned status for functions returning an int32 */
file_id, vgroup_id, vgroup_ref, vdata_id, vdata_ref,
num_of_records, num_of_vals_per_rec, record_pos,
obj_index, /* index of an object within a vgroup */
num_of_pairs, /* number of tag/ref number pairs, i.e., objects */
obj_tag, obj_ref, /* tag/ref number of an HDF object */
vgroup_pos = 0; /* position of a vgroup in the file */
float32 databuf[N_RECORDS][N_VALS_PER_REC];
int16 rec_num;
/********************** End of variable declaration ***********************/
char FIELDNAME_LIST[MAX_FIELDNAME_LIST_LENGTH];
memset(FIELDNAME_LIST, 0x00, MAX_FIELDNAME_LIST_LENGTH);
int i;
for (i = 0; i < N_VALS_PER_REC; i++) {
char buffer[256];
if (i == 0) {
sprintf(buffer, "%d", i);
} else {
sprintf(buffer, " %d", i);
}
strcat(FIELDNAME_LIST, buffer);
}
file_id = Hopen (FILE_NAME, DFACC_READ, 0);
status_n = Vstart (file_id);
vgroup_ref = -1;
vgroup_ref = Vgetid (file_id, vgroup_ref);
if (vgroup_ref == -1) exit(1);
vgroup_ref = Vgetid (file_id, vgroup_ref);
if (vgroup_ref == -1) exit(1);
vgroup_id = Vattach (file_id, vgroup_ref, "r");
num_of_pairs = Vntagrefs (vgroup_id);
if (num_of_pairs > 0)
{
printf ("\nVgroup #%d contains:\n", vgroup_pos);
for (obj_index = 0; obj_index < num_of_pairs; obj_index++)
{
status_n = Vgettagref (vgroup_id, obj_index, &obj_tag, &obj_ref);
printf ("tag = %d, ref = %d", obj_tag, obj_ref);
if (Visvg (vgroup_id, obj_ref))
printf (" <-- is a vgroup\n");
else if (Visvs (vgroup_id, obj_ref)) {
printf (" <-- is a vdata\n");
vdata_ref = VSfind (file_id, VDATA_NAME);
vdata_id = VSattach (file_id, vdata_ref, "r");
status_n = VSsetfields (vdata_id, FIELDNAME_LIST);
record_pos = VSseek (vdata_id, RECORD_INDEX);
num_of_records =
VSread (vdata_id, (uint8 *)databuf, N_RECORDS, FULL_INTERLACE);
for (rec_num = 0; rec_num < num_of_records; rec_num++)
{
for (num_of_vals_per_rec = 0; num_of_vals_per_rec < N_VALS_PER_REC; num_of_vals_per_rec++) {
printf ("%6.2f\n", databuf[rec_num][num_of_vals_per_rec]);
}
}
}
else {
printf (" <-- neither vdata nor vgroup\n");
}
} /* for */
} /* if */
else
printf ("Vgroup #%d contains no HDF objects\n", vgroup_pos);
/*
* Terminate access to the current vgroup.
*/
status_32 = Vdetach (vgroup_id);
/*
* Move to the next vgroup position.
*/
vgroup_pos++;
/*
* Terminate access to the V interface and close the file.
*/
status_n = Vend (file_id);
status_n = Hclose (file_id);
return 0;
}
