Position.cc

// Copyright 2008 Michael Marsh, University of Maryland.
//
// This file is part of pydtn.
//
// pydtn is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// pydtn is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with pydtn.  If not, see <http://www.gnu.org/licenses/>.
//
// The views and conclusions contained in the software and documentation
// are those of the authors and should not be interpreted as representing
// official policies, either expressed or implied, of the University
// of Maryland.
//
// pydtn extends and embeds the Python interpreter, which is
// Copyright 2001-2006 Python Software Foundation, All Rights Reserved,
// and is released under the PSF License Agreement.
//
// RANLUX random number generation uses the Boost library,
// Copyright 1994-2006 by various authors (details in individual files),
// which is released under the Boost Software License, Version 1.0.

#include "Position.h"
#include <math.h>

using namespace Mobility;

double
Position::length() const
{
   return ::sqrt( m_x*m_x + m_y*m_y + m_z*m_z );
}

Position
Position::operator+( const Position& p ) const
{
   return Position( m_x+p.m_x , m_y+p.m_y , m_z+p.m_z );
}

Position
Position::operator-( const Position& p ) const
{
   return Position( m_x-p.m_x , m_y-p.m_y , m_z-p.m_z );
}

Position
Position::operator*( double s ) const
{
   return Position( s*m_x , s*m_y , s*m_z );
}

Position
Position::operator/( double s ) const
{
   return Position( m_x/s , m_y/s , m_z/s );
}

Position&
Position::operator+=( const Position& p )
{
   m_x += p.m_x;
   m_y += p.m_y;
   m_z += p.m_z;
   return *this;
}

Position&
Position::operator-=( const Position& p )
{
   m_x -= p.m_x;
   m_y -= p.m_y;
   m_z -= p.m_z;
   return *this;
}

Position&
Position::operator*=( double s )
{
   m_x *= s;
   m_y *= s;
   m_z *= s;
   return *this;
}

Position&
Position::operator/=( double s )
{
   m_x /= s;
   m_y /= s;
   m_z /= s;
   return *this;
}

void
Position::operator=( const Position& p )
{
   if ( &p == this ) return;
   m_x = p.m_x;
   m_y = p.m_y;
   m_z = p.m_z;
}

Position
operator*( double s, const Position& p )
{
   return p * s;
}

---