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vector3_i.h
1 //
2 // vector3_i.h
3 //
4 // Copyright (C) 1996 Limit Point Systems, Inc.
5 //
6 // Author: Curtis Janssen <cljanss@limitpt.com>
7 // Maintainer: LPS
8 //
9 // This file is part of the SC Toolkit.
10 //
11 // The SC Toolkit is free software; you can redistribute it and/or modify
12 // it under the terms of the GNU Library General Public License as published by
13 // the Free Software Foundation; either version 2, or (at your option)
14 // any later version.
15 //
16 // The SC Toolkit is distributed in the hope that it will be useful,
17 // but WITHOUT ANY WARRANTY; without even the implied warranty of
18 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 // GNU Library General Public License for more details.
20 //
21 // You should have received a copy of the GNU Library General Public License
22 // along with the SC Toolkit; see the file COPYING.LIB. If not, write to
23 // the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
24 //
25 // The U.S. Government is granted a limited license as per AL 91-7.
26 //
27
28 #ifdef __GNUC__
29 #pragma interface
30 #endif
31
32 #ifdef INLINE_FUNCTIONS
33 #define INLINE inline
34 #else
35 #define INLINE
36 #endif
37
38 namespace sc {
39
40 INLINE void
41 SCVector3::spherical_coord(double theta, double phi,
42 double r)
43 {
44 double rsin_theta = r*sin(theta);
45 _v[0]=rsin_theta*cos(phi);
46 _v[1]=rsin_theta*sin(phi);
47 _v[2]=r*cos(theta);
48 }
49
50 INLINE double
51 SCVector3::dist(const SCVector3 &s) const
52 {
53 double x=_v[0]-s._v[0],y=_v[1]-s._v[1],z=_v[2]-s._v[2];
54 return sqrt(x*x + y*y + z*z);
55 }
56
57 }
58
59 #undef INLINE
60
61 // Local Variables:
62 // mode: c++
63 // c-file-style: "CLJ"
64 // End: