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|
/*
----------------------------------------------------------------------------
| Copyright (C) 1999 Emergent IT Inc. and Raytheon Systems Company |
----------------------------------------------------------------------------
*/
#include <HE5_HdfEosDef.h>
/* In this program we (1) open the "Swath.h5" HDF-EOS file, (2) attach to */
/* the "Swath1" swath, and (3) write data to the "Longitude", "Latitude", */
/* and (appendable) "Spectra" fields */
/* ----------------------------------------------------------------------- */
int main()
{
herr_t status = FAIL;
int i, j, k;
int track, xtrack;
int rank = FAIL;
hid_t swfid = FAIL;
hid_t SWid = FAIL;
hid_t *ntype;
hssize_t start[3] = {0, 0, 0};
hsize_t count[3];
hsize_t dims[8] = {0, 0, 0, 0, 0, 0, 0, 0};
long attr[4] = {3, 5, 7, 11};
float lng[20][10], latcnt;
float lat[20][10], loncnt;
double plane[15][40][20];
double tme[20];
char dimlist[80];
char maxdimlist[80];
hvl_t buffer[4];
size_t datasize;
/* Populate lon/lat data arrays */
/* ---------------------------- */
latcnt = 1.;
loncnt = 1.;
track = 0;
xtrack = 0;
while(track < 20) {
while(xtrack < 10) {
lat[track][xtrack] = latcnt;
lng[track][xtrack] = loncnt;
loncnt = loncnt + 1.;
xtrack++;
}
latcnt = latcnt + 1.;
loncnt = 1.;
track++;
xtrack = 0;
}
/* Popolate spectra data arrays */
/* ---------------------------- */
for (i = 0; i < 15; i++){
for (j = 0; j < 40; j++)
for (k = 0; k < 20; k++)
plane[i][j][k] = (double)(j*100 + i);
}
/* Allocate memory for and populate data buffer */
/* -------------------------------------------- */
datasize = 0;
for (i = 0; i < 4; i++)
{
buffer[i].p = (hvl_t *)calloc( 25 *(i+1), sizeof(unsigned int));
buffer[i].len = 25 * (i+1);
/* calculate the data buffer size (bytes) */
datasize += buffer[i].len * sizeof(unsigned int);
for ( j = 0; j < 25 * (i+1); j++)
((unsigned int *)buffer[i].p)[j] = (i+1)*1000 + j;
}
/* Open the HDF swath file, "Swath.h5" */
/* ----------------------------------- */
swfid = HE5_SWopen("Swath.h5", H5F_ACC_RDWR);
if (swfid != FAIL)
{
/* Attach the "Swath1" swath */
/* ------------------------- */
SWid = HE5_SWattach(swfid, "Swath1");
if (SWid != FAIL)
{
count[0] = 20;
count[1] = 10;
/* Write "Longitute" field */
/* ----------------------- */
status = HE5_SWwritefield(SWid, "Longitude", start, NULL, count, lng);
printf("status returned by HE5_SWwritefield(\"Longitude\"): %d\n", status);
/* Write "Latitude" field */
/* ---------------------- */
status = HE5_SWwritefield(SWid, "Latitude", start, NULL, count, lat);
printf("status returned by HE5_SWwritefield(\"Latitude\"): %d\n", status);
/* Write "Time" field */
/* ------------------- */
for (i = 0; i < 20; i++)
tme[i] = 34574087.3 + 84893.2*i;
count[0] = 20;
status = HE5_SWwritefield(SWid, "Time", start, NULL, count, tme);
printf("status returned by HE5_SWwritefield(\"Time\"): %d\n", status);
/* Write "Spectra" field 1st time */
/* -------------------------------- */
count[0] = 15;
count[1] = 40;
count[2] = 20;
status = HE5_SWwritefield(SWid, "Spectra", start, NULL, count, plane);
printf("status returned by HE5_SWwritefield(\"Spectra\"): %d\n", status);
/* Retrieve information about "Spectra" field */
/* ------------------------------------------ */
ntype = (hid_t *)calloc(3,sizeof(hid_t));
status = HE5_SWfieldinfo(SWid, "Spectra", &rank, dims, ntype, dimlist, maxdimlist);
printf("Number of elements after first write: \n");
for ( i = 0; i < rank; i++)
printf("\t\t %lu\n",(unsigned long)dims[i]);
printf("DimList string: %s \n", dimlist);
printf("MaxdimList string: %s \n", maxdimlist);
/* Write Spectra Field 2d time */
/* ----------------------------- */
start[0] = 10;
start[1] = 50;
start[2] = 30;
count[0] = 15;
count[1] = 40;
count[2] = 20;
status = HE5_SWwritefield(SWid, "Spectra", start, NULL, count, plane);
printf("status returned by HE5_SWwritefield(\"Spectra\"): %d\n", status);
/* Retrieve information about "Spectra" field */
/* ------------------------------------------ */
dims[0] = 0;
dims[1] = 0;
dims[2] = 0;
status = HE5_SWfieldinfo(SWid, "Spectra", &rank, dims, ntype, dimlist, maxdimlist);
printf("Number of elements after second write: \n");
for ( i = 0; i < rank; i++)
{
printf("\t\t %lu\n",(unsigned long)dims[i]);
}
printf("DimList string: %s \n", dimlist);
printf("MaxdimList string: %s \n", maxdimlist);
free(ntype);
/* Write data to the profile */
/* ------------------------- */
start[0] = 0; count[0] = 4;
status = HE5_PRwrite(SWid, "Profile-2000", start, NULL, count, datasize, buffer);
printf("Status returned by HE5_PRwrite(\"Profile-2000\"): %d \n", status);
/* Write User-defined Attribute */
/* ---------------------------- */
count[0] = 4;
status = HE5_SWwriteattr(SWid, "TestAttr", H5T_NATIVE_INT, count, attr);
printf("status returned by HE5_SWwriteattr(\"TestAttr\"): %d\n", status);
}
}
status = HE5_SWdetach(SWid);
status = HE5_SWclose(swfid);
return 0;
}
|
