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WUnitSphereCoordinates.cpp
1 //---------------------------------------------------------------------------
2 //
3 // Project: OpenWalnut ( http://www.openwalnut.org )
4 //
5 // Copyright 2009 OpenWalnut Community, BSV@Uni-Leipzig and CNCF@MPI-CBS
6 // For more information see http://www.openwalnut.org/copying
7 //
8 // This file is part of OpenWalnut.
9 //
10 // OpenWalnut is free software: you can redistribute it and/or modify
11 // it under the terms of the GNU Lesser General Public License as published by
12 // the Free Software Foundation, either version 3 of the License, or
13 // (at your option) any later version.
14 //
15 // OpenWalnut is distributed in the hope that it will be useful,
16 // but WITHOUT ANY WARRANTY; without even the implied warranty of
17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 // GNU Lesser General Public License for more details.
19 //
20 // You should have received a copy of the GNU Lesser General Public License
21 // along with OpenWalnut. If not, see <http://www.gnu.org/licenses/>.
22 //
23 //---------------------------------------------------------------------------
24 
25 #include <cmath>
26 
27 #include "WUnitSphereCoordinates.h"
28 
30  : m_theta( 0.0 ),
31  m_phi( 0.0 )
32 {
33 }
34 
36  : m_theta( theta ),
37  m_phi( phi )
38 {
39 }
40 
42 {
43  vector = normalize( vector );
44  // calculate angles
45  m_theta = std::acos( vector[2] );
46  m_phi = std::atan2( vector[1], vector[0] );
47 }
48 
50 {
51 }
52 
54 {
55  return m_theta;
56 }
57 
59 {
60  return m_phi;
61 }
62 
64 {
65  m_theta = theta;
66 }
67 
69 {
70  m_phi = phi;
71 }
72 
74 {
75  return WVector3d( std::sin( m_theta )*std::cos( m_phi ), std::sin( m_theta )*std::sin( m_phi ), std::cos( m_theta ) );
76 }