1 /*
2  * Copyright (c) 2016, The University of Oxford
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  * 1. Redistributions of source code must retain the above copyright notice,
8  *    this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright notice,
10  *    this list of conditions and the following disclaimer in the documentation
11  *    and/or other materials provided with the distribution.
12  * 3. Neither the name of the University of Oxford nor the names of its
13  *    contributors may be used to endorse or promote products derived from this
14  *    software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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27  */
28 
29 #ifndef OSKAR_SKY_FROM_FITS_FILE_H_
30 #define OSKAR_SKY_FROM_FITS_FILE_H_
31 
32 /**
33  * @file oskar_sky_from_fits_file.h
34  */
35 
36 #include <oskar_global.h>
37 
38 #ifdef __cplusplus
39 extern "C" {
40 #endif
41 
42 /**
43  * @brief
44  * Creates a sky model from an array of image pixels.
45  *
46  * @details
47  * Creates a sky model from an array of image pixels.
48  *
49  * The \p default_map_units can be either "Jy/beam", "Jy/pixel", "K" or "mK".
50  *
51  * @param[in] precision         Enumerated precision of the output sky model.
52  * @param[in] filename          Pathname of FITS file to load.
53  * @param[in] min_peak_fraction Minimum allowed fraction of image peak.
54  * @param[in] min_abs_val       Ignore pixels below this value.
55  * @param[in] default_map_units Map units, if not found from the file.
56  * @param[in] override_units    If set, override map units with the default.
57  * @param[in] frequency_hz      Frequency of image data, in Hz, if not found.
58  * @param[in] spectral_index    Spectral index to give each pixel.
59  * @param[in,out] status        Status return code.
60  */
61 OSKAR_EXPORT
62 oskar_Sky* oskar_sky_from_fits_file(int precision, const char* filename,
63         double min_peak_fraction, double min_abs_val,
64         const char* default_map_units, int override_units, double frequency_hz,
65         double spectral_index, int* status);
66 
67 #ifdef __cplusplus
68 }
69 #endif
70 
71 #endif /* OSKAR_SKY_FROM_FITS_FILE_H_ */
72