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72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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* Copyright by the Board of Trustees of the University of Illinois. *
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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 files COPYING and Copyright.html. COPYING can be found at the root *
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* of the source code distribution tree; Copyright.html can be found at the *
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* root level of an installed copy of the electronic HDF5 document set and *
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* is linked from the top-level documents page. It can also be found at *
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* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
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* access to either file, you may request a copy from 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 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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{
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buf[i] = n;
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if ( j > space )
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{
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n++;
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j=0;
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}
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if (n>PAL_ENTRIES-1) 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, "pallete", pal_dims, pal );
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/* attach the palette to the image */
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H5IMlink_palette( file_id, "image1", "pallete" );
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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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