source: trunk/FACT++/sofa/src/ir.c@ 18346

Last change on this file since 18346 was 18346, checked in by tbretz, 9 years ago
File size: 4.9 KB
Line 
1#include "sofa.h"
2
3void iauIr(double r[3][3])
4/*
5** - - - - - -
6** i a u I r
7** - - - - - -
8**
9** Initialize an r-matrix to the identity matrix.
10**
11** This function is part of the International Astronomical Union's
12** SOFA (Standards Of Fundamental Astronomy) software collection.
13**
14** Status: vector/matrix support function.
15**
16** Returned:
17** r double[3][3] r-matrix
18**
19** This revision: 2013 June 18
20**
21** SOFA release 2015-02-09
22**
23** Copyright (C) 2015 IAU SOFA Board. See notes at end.
24*/
25{
26 r[0][0] = 1.0;
27 r[0][1] = 0.0;
28 r[0][2] = 0.0;
29 r[1][0] = 0.0;
30 r[1][1] = 1.0;
31 r[1][2] = 0.0;
32 r[2][0] = 0.0;
33 r[2][1] = 0.0;
34 r[2][2] = 1.0;
35
36 return;
37
38/*----------------------------------------------------------------------
39**
40** Copyright (C) 2015
41** Standards Of Fundamental Astronomy Board
42** of the International Astronomical Union.
43**
44** =====================
45** SOFA Software License
46** =====================
47**
48** NOTICE TO USER:
49**
50** BY USING THIS SOFTWARE YOU ACCEPT THE FOLLOWING SIX TERMS AND
51** CONDITIONS WHICH APPLY TO ITS USE.
52**
53** 1. The Software is owned by the IAU SOFA Board ("SOFA").
54**
55** 2. Permission is granted to anyone to use the SOFA software for any
56** purpose, including commercial applications, free of charge and
57** without payment of royalties, subject to the conditions and
58** restrictions listed below.
59**
60** 3. You (the user) may copy and distribute SOFA source code to others,
61** and use and adapt its code and algorithms in your own software,
62** on a world-wide, royalty-free basis. That portion of your
63** distribution that does not consist of intact and unchanged copies
64** of SOFA source code files is a "derived work" that must comply
65** with the following requirements:
66**
67** a) Your work shall be marked or carry a statement that it
68** (i) uses routines and computations derived by you from
69** software provided by SOFA under license to you; and
70** (ii) does not itself constitute software provided by and/or
71** endorsed by SOFA.
72**
73** b) The source code of your derived work must contain descriptions
74** of how the derived work is based upon, contains and/or differs
75** from the original SOFA software.
76**
77** c) The names of all routines in your derived work shall not
78** include the prefix "iau" or "sofa" or trivial modifications
79** thereof such as changes of case.
80**
81** d) The origin of the SOFA components of your derived work must
82** not be misrepresented; you must not claim that you wrote the
83** original software, nor file a patent application for SOFA
84** software or algorithms embedded in the SOFA software.
85**
86** e) These requirements must be reproduced intact in any source
87** distribution and shall apply to anyone to whom you have
88** granted a further right to modify the source code of your
89** derived work.
90**
91** Note that, as originally distributed, the SOFA software is
92** intended to be a definitive implementation of the IAU standards,
93** and consequently third-party modifications are discouraged. All
94** variations, no matter how minor, must be explicitly marked as
95** such, as explained above.
96**
97** 4. You shall not cause the SOFA software to be brought into
98** disrepute, either by misuse, or use for inappropriate tasks, or
99** by inappropriate modification.
100**
101** 5. The SOFA software is provided "as is" and SOFA makes no warranty
102** as to its use or performance. SOFA does not and cannot warrant
103** the performance or results which the user may obtain by using the
104** SOFA software. SOFA makes no warranties, express or implied, as
105** to non-infringement of third party rights, merchantability, or
106** fitness for any particular purpose. In no event will SOFA be
107** liable to the user for any consequential, incidental, or special
108** damages, including any lost profits or lost savings, even if a
109** SOFA representative has been advised of such damages, or for any
110** claim by any third party.
111**
112** 6. The provision of any version of the SOFA software under the terms
113** and conditions specified herein does not imply that future
114** versions will also be made available under the same terms and
115** conditions.
116*
117** In any published work or commercial product which uses the SOFA
118** software directly, acknowledgement (see www.iausofa.org) is
119** appreciated.
120**
121** Correspondence concerning SOFA software should be addressed as
122** follows:
123**
124** By email: sofa@ukho.gov.uk
125** By post: IAU SOFA Center
126** HM Nautical Almanac Office
127** UK Hydrographic Office
128** Admiralty Way, Taunton
129** Somerset, TA1 2DN
130** United Kingdom
131**
132**--------------------------------------------------------------------*/
133}
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