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/*
* Vertex2D.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 "Vertex2D.h"
#include <cmath>
namespace ZoomEdit {
namespace Math {
float Vertex2D::distanceSq(const Vertex2D &v) const {
return (x - v.x)*(x - v.x) + (y - v.y)*(y - v.y);
}
float Vertex2D::distance(const Vertex2D &v) const {
return std::sqrt(distanceSq(v));
}
Vector2D Vertex2D::operator-(const Vertex2D &v) const {
return Vector2D(x - v.x, y - v.y);
}
Vertex2D Vertex2D::operator+(const Vector2D &v) const {
return Vertex2D(x + v.getX(), y + v.getY());
}
Vertex2D Vertex2D::operator-(const Vector2D &v) const {
return Vertex2D(x - v.getX(), y - v.getY());
}
Vertex2D& Vertex2D::operator+=(const Vector2D &v) {
x += v.getX();
y += v.getY();
return *this;
}
Vertex2D& Vertex2D::operator-=(const Vector2D &v) {
x -= v.getX();
y -= v.getY();
return *this;
}
}
}
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