Line.h

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/*
 * This file is part of ALVAR, A Library for Virtual and Augmented Reality.
 *
 * Copyright 2007-2012 VTT Technical Research Centre of Finland
 *
 * Contact: VTT Augmented Reality Team <alvar.info@vtt.fi>
 *          <http://www.vtt.fi/multimedia/alvar.html>
 *
 * ALVAR is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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 Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with ALVAR; if not, see
 * <http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html>.
 */

#ifndef _LINE_H
#define _LINE_H

#include "Alvar.h"
#include "Util.h"

namespace alvar {

struct ALVAR_EXPORT Line
{
        Line(float params[4]);
        Line()
        {}

        PointDouble c; // center
        PointDouble s; // direction vector
};

int ALVAR_EXPORT FitLines(std::vector<Line> &lines,
                         const std::vector<int>& corners,
                         const std::vector<PointInt >& edge,
                                        IplImage *grey=0); 

PointDouble ALVAR_EXPORT Intersection(const Line& l1, const Line& l2);

} // namespace alvar 

#endif