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/*
* Vector.cpp
*
* Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Vector.h"
#include <cmath>
namespace ZoomEdit {
namespace Data {
float Vector::lengthSq() const {
return x*x + y*y + z*z;
}
float Vector::length() const {
return std::sqrt(lengthSq());
}
Vector Vector::operator+(const Vector &v) const {
return Vector(x + v.x, y + v.y, z + v.z);
}
Vector Vector::operator-(const Vector &v) const {
return Vector(x - v.x, y - v.y, z - v.z);
}
float Vector::operator*(const Vector &v) const {
return (x*v.x + y*v.y + z*v.z);
}
Vector Vector::operator*(float f) const {
return Vector(x*f, y*f, z*f);
}
Vector Vector::operator/(float f) const {
return Vector(x/f, y/f, z/f);
}
Vector Vector::operator%(const Vector &v) const {
return Vector(y*v.z-z*v.y, z*v.x-x*v.z, x*v.y-y*v.x);
}
Vector& Vector::operator+=(const Vector &v) {
x += v.x;
y += v.y;
z += v.z;
return *this;
}
Vector& Vector::operator-=(const Vector &v) {
x -= v.x;
y -= v.y;
z -= v.z;
return *this;
}
Vector& Vector::operator*=(float f) {
x *= f;
y *= f;
z *= f;
return *this;
}
Vector& Vector::operator/=(float f) {
x /= f;
y /= f;
z /= f;
return *this;
}
Vector& Vector::operator%=(const Vector &v) {
*this = *this % v;
return *this;
}
}
}
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