source: trunk/FACT++/erfa/src/ir.c@ 19887

Last change on this file since 19887 was 18921, checked in by tbretz, 7 years ago
Updated to ERFA 1.4.0
File size: 3.4 KB
Line 
1#include "erfa.h"
2
3void eraIr(double r[3][3])
4/*
5** - - - - - -
6** e r a I r
7** - - - - - -
8**
9** Initialize an r-matrix to the identity matrix.
10**
11** Returned:
12** r double[3][3] r-matrix
13**
14** Copyright (C) 2013-2017, NumFOCUS Foundation.
15** Derived, with permission, from the SOFA library. See notes at end of file.
16*/
17{
18 r[0][0] = 1.0;
19 r[0][1] = 0.0;
20 r[0][2] = 0.0;
21 r[1][0] = 0.0;
22 r[1][1] = 1.0;
23 r[1][2] = 0.0;
24 r[2][0] = 0.0;
25 r[2][1] = 0.0;
26 r[2][2] = 1.0;
27
28 return;
29
30}
31/*----------------------------------------------------------------------
32**
33**
34** Copyright (C) 2013-2017, NumFOCUS Foundation.
35** All rights reserved.
36**
37** This library is derived, with permission, from the International
38** Astronomical Union's "Standards of Fundamental Astronomy" library,
39** available from http://www.iausofa.org.
40**
41** The ERFA version is intended to retain identical functionality to
42** the SOFA library, but made distinct through different function and
43** file names, as set out in the SOFA license conditions. The SOFA
44** original has a role as a reference standard for the IAU and IERS,
45** and consequently redistribution is permitted only in its unaltered
46** state. The ERFA version is not subject to this restriction and
47** therefore can be included in distributions which do not support the
48** concept of "read only" software.
49**
50** Although the intent is to replicate the SOFA API (other than
51** replacement of prefix names) and results (with the exception of
52** bugs; any that are discovered will be fixed), SOFA is not
53** responsible for any errors found in this version of the library.
54**
55** If you wish to acknowledge the SOFA heritage, please acknowledge
56** that you are using a library derived from SOFA, rather than SOFA
57** itself.
58**
59**
60** TERMS AND CONDITIONS
61**
62** Redistribution and use in source and binary forms, with or without
63** modification, are permitted provided that the following conditions
64** are met:
65**
66** 1 Redistributions of source code must retain the above copyright
67** notice, this list of conditions and the following disclaimer.
68**
69** 2 Redistributions in binary form must reproduce the above copyright
70** notice, this list of conditions and the following disclaimer in
71** the documentation and/or other materials provided with the
72** distribution.
73**
74** 3 Neither the name of the Standards Of Fundamental Astronomy Board,
75** the International Astronomical Union nor the names of its
76** contributors may be used to endorse or promote products derived
77** from this software without specific prior written permission.
78**
79** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
80** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
81** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
82** FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
83** COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
84** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
85** BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
86** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
87** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
88** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
89** ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
90** POSSIBILITY OF SUCH DAMAGE.
91**
92*/
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