1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
#include "mfhdf.h"
#define FILE_NAME "SLABS.hdf"
#define SDS_NAME "FilledBySlabs"
#define X_LENGTH 4
#define Y_LENGTH 5
#define Z_LENGTH 6
#define RANK 3
int main()
{
/************************* Variable declaration **************************/
int32 sd_id, sds_id;
intn status;
int32 dim_sizes[3], start[3], edges[3];
int32 data[Z_LENGTH][Y_LENGTH][X_LENGTH];
int32 zx_data[Z_LENGTH][X_LENGTH];
int i, j, k;
/********************* End of variable declaration ***********************/
/*
* Data initialization.
*/
for (k = 0; k < Z_LENGTH; k++)
for (j = 0; j < Y_LENGTH; j++)
for (i = 0; i < X_LENGTH; i++)
data[k][j][i] = (i + 1) + (j + 1) + (k + 1);
/*
* Create the file and initialize the SD interface.
*/
sd_id = SDstart (FILE_NAME, DFACC_CREATE);
/*
* Define dimensions of the array to be created.
*/
dim_sizes[0] = Z_LENGTH;
dim_sizes[1] = Y_LENGTH;
dim_sizes[2] = X_LENGTH;
/*
* Create the array with the name defined in SDS_NAME.
*/
sds_id = SDcreate (sd_id, SDS_NAME, DFNT_INT32, RANK, dim_sizes);
/*
* Set the parameters start and edges to write
* a 6x4 element slab of data to the data set; note
* that edges[1] is set to 1 to define a 2-dimensional slab
* parallel to the ZX plane.
* start[1] (slab position in the array) is initialized inside
* the for loop.
*/
edges[0] = Z_LENGTH;
edges[1] = 1;
edges[2] = X_LENGTH;
start[0] = start[2] = 0;
for (j = 0; j < Y_LENGTH; j++)
{
start[1] = j;
/*
* Initialize zx_data buffer (data slab).
*/
for ( k = 0; k < Z_LENGTH; k++)
{
for ( i = 0; i < X_LENGTH; i++)
{
zx_data[k][i] = data[k][j][i];
}
}
/*
* Write the data slab into the SDS array defined in SDS_NAME.
* Note that the 3rd parameter is NULL which indicates that consecutive
* slabs in the Y direction are written.
*/
status = SDwritedata (sds_id, start, NULL, edges, (VOIDP)zx_data);
}
/*
* Terminate access to the data set.
*/
status = SDendaccess (sds_id);
/*
* Terminate access to the SD interface and close the file.
*/
status = SDend (sd_id);
return 0;
}
|
