WUnitSphereCoordinates.cpp

00001 //---------------------------------------------------------------------------
00002 //
00003 // Project: OpenWalnut ( http://www.openwalnut.org )
00004 //
00005 // Copyright 2009 OpenWalnut Community, BSV@Uni-Leipzig and CNCF@MPI-CBS
00006 // For more information see http://www.openwalnut.org/copying
00007 //
00008 // This file is part of OpenWalnut.
00009 //
00010 // OpenWalnut is free software: you can redistribute it and/or modify
00011 // it under the terms of the GNU Lesser General Public License as published by
00012 // the Free Software Foundation, either version 3 of the License, or
00013 // (at your option) any later version.
00014 //
00015 // OpenWalnut is distributed in the hope that it will be useful,
00016 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00018 // GNU Lesser General Public License for more details.
00019 //
00020 // You should have received a copy of the GNU Lesser General Public License
00021 // along with OpenWalnut. If not, see <http://www.gnu.org/licenses/>.
00022 //
00023 //---------------------------------------------------------------------------
00024 
00025 #include <cmath>
00026 
00027 #include "WUnitSphereCoordinates.h"
00028 
00029 WUnitSphereCoordinates::WUnitSphereCoordinates()
00030     : m_theta( 0.0 ),
00031       m_phi( 0.0 )
00032 {
00033 }
00034 
00035 WUnitSphereCoordinates::WUnitSphereCoordinates( double theta, double phi )
00036     : m_theta( theta ),
00037       m_phi( phi )
00038 {
00039 }
00040 
00041 WUnitSphereCoordinates::WUnitSphereCoordinates( WVector3d vector )
00042 {
00043     vector = normalize( vector );
00044     // calculate angles
00045     m_theta = std::acos( vector[2] );
00046     m_phi = std::atan2( vector[1], vector[0] );
00047 }
00048 
00049 WUnitSphereCoordinates::~WUnitSphereCoordinates()
00050 {
00051 }
00052 
00053 double WUnitSphereCoordinates::getTheta() const
00054 {
00055     return m_theta;
00056 }
00057 
00058 double WUnitSphereCoordinates::getPhi() const
00059 {
00060     return m_phi;
00061 }
00062 
00063 void WUnitSphereCoordinates::setTheta( double theta )
00064 {
00065     m_theta = theta;
00066 }
00067 
00068 void WUnitSphereCoordinates::setPhi( double phi )
00069 {
00070     m_phi = phi;
00071 }
00072 
00073 WVector3d WUnitSphereCoordinates::getEuclidean() const
00074 {
00075     return WVector3d( std::sin( m_theta )*std::cos( m_phi ), std::sin( m_theta )*std::sin( m_phi ), std::cos( m_theta ) );
00076 }
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