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|
/*
----------------------------------------------------------------------------
| Copyright (C) 2002 Emergent IT Inc. and Raytheon Systems Company |
----------------------------------------------------------------------------
*/
#include <HE5_HdfEosDef.h>
/* ------------------------------------------------------------------- */
/* In this program we (1) open the "ZA.he5" HDF-EOS file, (2) attach to */
/* the "ZA1" za, and (3) read data from the "Spectra" field. Also, we */
/* read the global/group/local attributes */
/* ------------------------------------------------------------------- */
int main()
{
herr_t status = FAIL;
int i, j, k;
int attr1[4]; /* data buffer for global attribute */
int attr2[4]; /* .... for group attribute */
int attr3[4]; /* .... for local attribute */
hid_t zafid = FAIL;
hid_t ZAid = FAIL;
char attr4[7] = {0}; /* ... for global 'char' attribute */
long attr5[4]; /* ... for global 'long' attribute */
double attr6[4]; /* ... for global 'double' attribute */
hssize_t start[3];
hsize_t count[3];
double plane[15][40][20];
char *charname[10] = {0};
/* Populate spectra data array. Value = 100*(track index)+(band index) */
/* ------------------------------------------------------------------- */
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);
}
/* Open the HDF-EOS za file, "ZA.he5" */
/* --------------------------------- */
zafid = HE5_ZAopen("ZA.he5", H5F_ACC_RDONLY);
if (zafid != FAIL)
{
/* Attach the "ZA1" za */
/* ------------------- */
ZAid = HE5_ZAattach(zafid, "ZA1");
if (ZAid != FAIL)
{
/* Read the entire Spectra field */
/* ----------------------------- */
start[0] = 0; start[1] = 0; start[2] = 0;
count[0] = 15; count[1] = 40; count[2] = 20;
status = HE5_ZAread(ZAid, "Spectra", start, NULL, count, plane);
printf("Status returned by HE5_ZAread() : %d \n", status);
start[0] = 0;
count[0] = 10;
for (i = 0; i < 10; i++)
charname[i] = (char *)malloc(95*sizeof(char));
status = HE5_ZAread(ZAid, "Test_string", start, NULL, count, charname);
printf("Status returned by HE5_ZAread() : %d \n", status);
/* Display Test_string data */
/* ---------------------- */
for (i = 0; i < 10; i++)
printf("i = %d string = %s\n", i, charname[i]);
for (i = 0; i < 10; i++)
free(charname[i]);
/* Read Global 'int' Attribute */
/* --------------------------- */
status = HE5_ZAreadattr(ZAid, "GlobalAttribute", attr1);
printf("Status returned by HE5_ZAreadattr() : %d \n", status);
printf("Global attribute values:\n");
for (i = 0; i < 4; i++)
printf("\t\t %d \n",attr1[i]);
/* Read Group Attribute */
/* -------------------- */
status = HE5_ZAreadgrpattr(ZAid, "GroupAttribute", attr2);
printf("Status returned by HE5_ZAreadgrpattr() : %d \n", status);
printf("Group attribute values:\n");
for (i = 0; i < 4; i++)
printf("\t\t %d \n",attr2[i]);
/* Read Local Attribute */
/* -------------------- */
status = HE5_ZAreadlocattr(ZAid, "Density", "LocalAttribute", attr3);
printf("Status returned by HE5_ZAreadlocattr() : %d \n", status);
printf("Local attribute values:\n");
for (i = 0; i < 4; i++)
printf("\t\t %d \n",attr3[i]);
/* Read Global 'char' Attribute */
/* ---------------------------- */
status = HE5_ZAreadattr(ZAid, "GLOBAL_CHAR_ATTR", attr4);
printf("Status returned by HE5_ZAreadattr() : %d \n", status);
printf("Global attribute values:\n");
printf("\t\t %s \n",attr4);
/* Read Global 'long' Attribute */
/* ---------------------------- */
status = HE5_ZAreadattr(ZAid, "GLOBAL_LONG_ATTR", attr5);
printf("Status returned by HE5_ZAreadattr() : %d \n", status);
printf("Global attribute values:\n");
for (i = 0; i < 4; i++)
printf("\t\t %li \n",attr5[i]);
/* Read Global 'double' Attribute */
/* ------------------------------ */
status = HE5_ZAreadattr(ZAid, "GLOBAL_DOUBLE_ATTR", attr6);
printf("Status returned by HE5_ZAreadattr() : %d \n", status);
printf("Global attribute values:\n");
for (i = 0; i < 4; i++)
printf("\t\t %f \n",attr6[i]);
}
}
status = HE5_ZAdetach(ZAid);
status = HE5_ZAclose(zafid);
return 0;
}
|
