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