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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) read data from the "Longitude" 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 swfid = FAIL;
hid_t SWid = FAIL;
char attr4[20] = {0}; /* ... for global 'char' attribute */
long attr5[4]; /* ... for global 'long' attribute */
double attr6[4]; /* ... for global 'double' attribute */
float attr7[4]; /* ... for local 'float' attribute */
char attr8[20] = {0}; /* ... for local 'char' attribute */
hssize_t start[2];
hsize_t count[2];
float lng[20][10];
hvl_t buffer_out[4];/* Buffer to read out data from profile */
char *charname[10] = {0};
/* Open the HDF-EOS swath file, "Swath.h5" */
/* --------------------------------------- */
swfid = HE5_SWopen("Swath.h5", H5F_ACC_RDONLY);
if (swfid != FAIL)
{
/* Attach the "Swath1" swath */
/* ------------------------- */
SWid = HE5_SWattach(swfid, "Swath1");
if (SWid != FAIL)
{
/* Read the entire longitude field */
/* ------------------------------- */
start[0] = 0; start[1] = 0;
count[0] = 20; count[1] = 10;
status = HE5_SWreadfield(SWid, "Longitude", start, NULL, count, lng);
printf("Status returned by HE5_SWreadfield() : %d \n", status);
/* Display longitude data */
/* ---------------------- */
for (i = 0; i < 20; i++)
for (j = 0; j < 10; j++)
printf("i j Longitude: %d %d %f\n", i, j, lng[i][j]);
start[0] = 0;
count[0] = 10;
for (i = 0; i < 10; i++)
charname[i] = (char *)malloc(95*sizeof(char));
status = HE5_SWreadfield(SWid, "Test_string", start, NULL, count, charname);
printf("Status returned by HE5_SWreadfield() : %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 data from the Profile */
/* -------------------------- */
start[0] = 0; count[0] = 4;
status = HE5_PRread(SWid, "Profile-2000", start, NULL, count, buffer_out);
printf("Status returned by HE5_PRread() : %d \n", status);
/* Display the profile data */
/* ------------------------ */
for (i = 0; i < 4; i++)
{
printf("\tThe %d-th element length is %d \n", i, (unsigned)buffer_out[i].len);
for (j = 0; j < buffer_out[i].len; j++)
printf("\t\t %d \n", ((unsigned int *)buffer_out[i].p)[j]);
}
/* Release IDs and memory */
/* ---------------------- */
status = HE5_PRreclaimspace(SWid, "Profile-2000", buffer_out);
printf("Status returned by HE5_PRreclaimspace() : %d \n", status);
/* Read Global 'int' Attribute */
/* --------------------------- */
status = HE5_SWreadattr(SWid, "GlobalAttribute", attr1);
printf("Status returned by HE5_SWreadattr() : %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_SWreadgrpattr(SWid, "GroupAttribute", attr2);
printf("Status returned by HE5_SWreadgrpattr() : %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_SWreadlocattr(SWid, "Density", "LocalAttribute_1", attr3);
printf("Status returned by HE5_SWreadlocattr() : %d \n", status);
printf("Local attribute values:\n");
for (i = 0; i < 4; i++)
printf("\t\t %d \n",attr3[i]);
/* Read Local Attribute */
/* -------------------- */
status = HE5_SWreadlocattr(SWid, "Longitude", "LocalAttribute_2", attr7);
printf("Status returned by HE5_SWreadlocattr() : %d \n", status);
printf("Local attribute values:\n");
for (i = 0; i < 4; i++)
printf("\t\t %f \n",attr7[i]);
status = HE5_SWreadlocattr(SWid, "Time", "LOCAL_CHAR_ATTR", attr8);
printf("Status returned by HE5_SWreadlocattr() : %d \n", status);
printf("Local attribute values:\n");
printf("\t\t %s \n",attr8);
/* Read Global 'char' Attribute */
/* ---------------------------- */
status = HE5_SWreadattr(SWid, "GLOBAL_CHAR_ATTR", attr4);
printf("Status returned by HE5_SWreadattr() : %d \n", status);
printf("Global attribute values:\n");
printf("\t\t %s \n",attr4);
/* Read Global 'long' Attribute */
/* ---------------------------- */
status = HE5_SWreadattr(SWid, "GLOBAL_LONG_ATTR", attr5);
printf("Status returned by HE5_SWreadattr() : %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_SWreadattr(SWid, "GLOBAL_DOUBLE_ATTR", attr6);
printf("Status returned by HE5_SWreadattr() : %d \n", status);
printf("Global attribute values:\n");
for (i = 0; i < 4; i++)
printf("\t\t %f \n",attr6[i]);
}
}
status = HE5_SWdetach(SWid);
status = HE5_SWclose(swfid);
return 0;
}
|
