File Coverage

erfasrc/src/s2pv.c
Criterion Covered Total %
statement 17 17 100.0
branch n/a
condition n/a
subroutine n/a
pod n/a
total 17 17 100.0


line stmt bran cond sub pod time code
1             #include "erfa.h"
2              
3 1           void eraS2pv(double theta, double phi, double r,
4             double td, double pd, double rd,
5             double pv[2][3])
6             /*
7             ** - - - - - - - -
8             ** e r a S 2 p v
9             ** - - - - - - - -
10             **
11             ** Convert position/velocity from spherical to Cartesian coordinates.
12             **
13             ** Given:
14             ** theta double longitude angle (radians)
15             ** phi double latitude angle (radians)
16             ** r double radial distance
17             ** td double rate of change of theta
18             ** pd double rate of change of phi
19             ** rd double rate of change of r
20             **
21             ** Returned:
22             ** pv double[2][3] pv-vector
23             **
24             ** Copyright (C) 2013-2020, NumFOCUS Foundation.
25             ** Derived, with permission, from the SOFA library. See notes at end of file.
26             */
27             {
28             double st, ct, sp, cp, rcp, x, y, rpd, w;
29              
30              
31 1           st = sin(theta);
32 1           ct = cos(theta);
33 1           sp = sin(phi);
34 1           cp = cos(phi);
35 1           rcp = r * cp;
36 1           x = rcp * ct;
37 1           y = rcp * st;
38 1           rpd = r * pd;
39 1           w = rpd*sp - cp*rd;
40              
41 1           pv[0][0] = x;
42 1           pv[0][1] = y;
43 1           pv[0][2] = r * sp;
44 1           pv[1][0] = -y*td - w*ct;
45 1           pv[1][1] = x*td - w*st;
46 1           pv[1][2] = rpd*cp + sp*rd;
47              
48 1           return;
49              
50             }
51             /*----------------------------------------------------------------------
52             **
53             **
54             ** Copyright (C) 2013-2020, NumFOCUS Foundation.
55             ** All rights reserved.
56             **
57             ** This library is derived, with permission, from the International
58             ** Astronomical Union's "Standards of Fundamental Astronomy" library,
59             ** available from http://www.iausofa.org.
60             **
61             ** The ERFA version is intended to retain identical functionality to
62             ** the SOFA library, but made distinct through different function and
63             ** file names, as set out in the SOFA license conditions. The SOFA
64             ** original has a role as a reference standard for the IAU and IERS,
65             ** and consequently redistribution is permitted only in its unaltered
66             ** state. The ERFA version is not subject to this restriction and
67             ** therefore can be included in distributions which do not support the
68             ** concept of "read only" software.
69             **
70             ** Although the intent is to replicate the SOFA API (other than
71             ** replacement of prefix names) and results (with the exception of
72             ** bugs; any that are discovered will be fixed), SOFA is not
73             ** responsible for any errors found in this version of the library.
74             **
75             ** If you wish to acknowledge the SOFA heritage, please acknowledge
76             ** that you are using a library derived from SOFA, rather than SOFA
77             ** itself.
78             **
79             **
80             ** TERMS AND CONDITIONS
81             **
82             ** Redistribution and use in source and binary forms, with or without
83             ** modification, are permitted provided that the following conditions
84             ** are met:
85             **
86             ** 1 Redistributions of source code must retain the above copyright
87             ** notice, this list of conditions and the following disclaimer.
88             **
89             ** 2 Redistributions in binary form must reproduce the above copyright
90             ** notice, this list of conditions and the following disclaimer in
91             ** the documentation and/or other materials provided with the
92             ** distribution.
93             **
94             ** 3 Neither the name of the Standards Of Fundamental Astronomy Board,
95             ** the International Astronomical Union nor the names of its
96             ** contributors may be used to endorse or promote products derived
97             ** from this software without specific prior written permission.
98             **
99             ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
100             ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
101             ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
102             ** FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
103             ** COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
104             ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
105             ** BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
106             ** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
107             ** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
108             ** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
109             ** ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
110             ** POSSIBILITY OF SUCH DAMAGE.
111             **
112             */