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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://www.hdfgroup.org/licenses. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include "hdf5.h"
#include "hdf5_hl.h"
#define WIDTH 400
#define HEIGHT 200
#define PAL_ENTRIES 9
unsigned char buf[WIDTH * HEIGHT];
int
main(void)
{
hid_t file_id;
hsize_t pal_dims[] = {PAL_ENTRIES, 3};
size_t i, j;
int n, space;
unsigned char pal[PAL_ENTRIES * 3] = { /* create a palette with 9 colors */
0, 0, 168, /* dark blue */
0, 0, 252, /* blue */
0, 168, 252, /* ocean blue */
84, 252, 252, /* light blue */
168, 252, 168, /* light green */
0, 252, 168, /* green */
252, 252, 84, /* yellow */
252, 168, 0, /* orange */
252, 0, 0}; /* red */
/* create an image of 9 values divided evenly by the array */
space = WIDTH * HEIGHT / PAL_ENTRIES;
for (i = 0, j = 0, n = 0; i < WIDTH * HEIGHT; i++, j++) {
buf[i] = n;
if (j > space) {
n++;
j = 0;
}
if (n > PAL_ENTRIES - 1)
n = 0;
}
/* create a new HDF5 file using default properties. */
file_id = H5Fcreate("ex_image1.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
/* make the image */
H5IMmake_image_8bit(file_id, "image1", (hsize_t)WIDTH, (hsize_t)HEIGHT, buf);
/* make a palette */
H5IMmake_palette(file_id, "palette", pal_dims, pal);
/* attach the palette to the image */
H5IMlink_palette(file_id, "image1", "palette");
/* close the file. */
H5Fclose(file_id);
return 0;
}
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