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|
/*
----------------------------------------------------------------------------
| Copyright (C) 1999 Emergent IT Inc. and Raytheon Systems Company |
----------------------------------------------------------------------------
*/
#include <HE5_HdfEosDef.h>
/*
* In this example we will (1) open the "Grid.h5" HDF-EOS file, (2) attach to
* the "UTMGrid", and (3) write data to the appendable "Vegetation" field.
*/
int main()
{
herr_t status = FAIL;
int i, j;
int rank = FAIL;
hid_t gdfid = FAIL;
hid_t GDid = FAIL;
hid_t *ntype;
hssize_t start[3];
hsize_t edge[3], dims[8] = {0,0,0,0,0,0,0,0};
float veg[200][120];
char buf1[256], buf2[256];
/* Fill veg array */
/* -------------- */
for (i = 0; i < 200; i++)
for (j = 0; j < 120; j++)
veg[i][j] = (float)(10+i);
/* Open the HDF grid file "Grid.h5" */
/* ------------------------------- */
gdfid = HE5_GDopen("Grid.h5", H5F_ACC_RDWR);
if (gdfid != FAIL)
{
/* Attach the "UTMGrid" */
/* ------------------- */
GDid = HE5_GDattach(gdfid, "UTMGrid");
if (GDid != FAIL)
{
/* Write data to the appendable field */
/* ---------------------------------- */
start[0] = 0; start[1] = 0;
edge[0] = 200; edge[1] = 120;
status = HE5_GDwritefield(GDid, "Vegetation", start, NULL, edge, veg);
printf("Status returned by HE5_GDwritefield(): %d\n", status);
strcpy(buf1, "");
strcpy(buf2, "");
dims[0] = 0;
dims[1] = 0;
ntype = (hid_t *)calloc(1, sizeof(hid_t));
status = HE5_GDfieldinfo(GDid, "Vegetation", &rank, dims, ntype, buf1, buf2);
printf("Status returned by HE5_GDfieldinfo(): %d\n", status);
if (status != FAIL)
{
printf("\tThe dimension list: %s \n", buf1);
printf("\tThe maximum dimension list: %s \n", buf2);
printf("The sizes of dataset dimensions before appending: \n");
for (i = 0; i < rank; i++)
printf("\t %lu \n", (unsigned long)dims[i]);
}
free(ntype);
}
/* Detach from "UTMGrid" */
/* -------------------- */
status = HE5_GDdetach(GDid);
/* Attach the "UTMGrid" */
/* ------------------- */
GDid = HE5_GDattach(gdfid, "UTMGrid");
if (GDid != FAIL)
{
/* Write new data to the appendable field */
/* -------------------------------------- */
start[0] = 180; start[1] = 100;
edge[0] = 100; edge[1] = 80;
status = HE5_GDwritefield(GDid, "Vegetation", start, NULL, edge, veg);
printf("Status returned by HE5_GDwritefield(): %d\n", status);
strcpy(buf1, "");
strcpy(buf2, "");
dims[0] = 0; dims[1] = 0;
ntype = (hid_t *)calloc(1, sizeof(hid_t));
status = HE5_GDfieldinfo(GDid, "Vegetation", &rank, dims, ntype, buf1, buf2);
printf("Status returned by HE5_GDfieldinfo(): %d\n", status);
if (status != FAIL)
{
printf("\tThe dimension list: %s \n", buf1);
printf("\tThe maximum dimension list: %s \n", buf2);
printf("The sizes of dataset dimensions after appending: \n");
for (i = 0; i < rank; i++)
printf("\t %lu \n", (unsigned long)dims[i]);
}
free(ntype);
}
status = HE5_GDdetach(GDid);
}
status = HE5_GDclose(gdfid);
return 0;
}
|
