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