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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://support.hdfgroup.org/ftp/HDF5/releases. *
* 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, "pallete", pal_dims, pal );
/* attach the palette to the image */
H5IMlink_palette( file_id, "image1", "pallete" );
/* close the file. */
H5Fclose( file_id );
return 0;
}
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