line_2d.h

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// g2o - General Graph Optimization
// Copyright (C) 2011 R. Kuemmerle, G. Grisetti, W. Burgard
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright notice,
//   this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
//   notice, this list of conditions and the following disclaimer in the
//   documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
// IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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#ifndef G2O_LINE2D_H
#define G2O_LINE2D_H

#include "g2o/types/slam2d/se2.h"

#include <Eigen/Core>
#include <Eigen/Geometry>

namespace g2o {

  struct Line2D : public Vector2D{
    EIGEN_MAKE_ALIGNED_OPERATOR_NEW
    Line2D() {
      setZero();
    }
    Line2D(const Vector2D& v) {
      (*this)(0) = v(0);
      (*this)(1) = v(1);
    }
  };

  inline Line2D operator * (const SE2 & t, const Line2D& l){
    Line2D est = l;
    est[0] += t.rotation().angle();
    est[0] = normalize_theta(est[0]);
    Vector2D n(cos(est[0]), sin(est[0]));
    est[1] += n.dot(t.translation());
    return est;
  }

}

#endif