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vector3.h
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vector3.h
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///////////////////////////////////////////////////////////////////////////
//
// Copyright 2010
//
// This file is part of starlight.
//
// starlight 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.
//
// starlight 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 starlight. If not, see <http://www.gnu.org/licenses/>.
//
///////////////////////////////////////////////////////////////////////////
//
// File and Version Information:
// $Rev:: 28 $: revision of last commit
// $Author:: bgrube $: author of last commit
// $Date:: 2010-12-10 18:30:01 +0000 #$: date of last commit
//
// Description:
//
//
//
///////////////////////////////////////////////////////////////////////////
#ifndef VECTOR3_H
#define VECTOR3_H
#include <iostream>
#include <cmath>
class vector3
{
public:
vector3();
vector3(const vector3&) = default;
vector3(double *vec);
vector3(double x, double y, double z);
virtual ~vector3();
const double* GetVector() const { return _vec; }
void SetVector(double x, double y, double z);
void SetVector(double *vec);
vector3& operator =(const vector3& vec)
{
if (this != &vec)
for (unsigned int i = 0; i < 3; ++i)
_vec[i] = vec._vec[i];
return *this;
}
vector3& operator +=(const vector3& vec)
{
for (unsigned int i = 0; i < 3; ++i)
_vec[i] += vec._vec[i];
return *this;
}
vector3& operator -=(const vector3& vec)
{
for (unsigned int i = 0; i < 3; ++i)
_vec[i] -= vec._vec[i];
return *this;
}
double X() const { return _vec[0]; }
double Y() const { return _vec[1]; }
double Z() const { return _vec[2]; }
double Mag2() const { return _vec[0] * _vec[0] + _vec[1] * _vec[1] + _vec[2] * _vec[2]; }
double Mag () const { return sqrt(Mag2()); }
friend std::ostream& operator << (std::ostream& out,
const vector3& vec)
{
out << "(" << vec.X() << ", " << vec.Y() << ", " << vec.Z() << ")";
return out;
}
private:
double _vec[3];
};
#endif // VECTOR3_H