hdl_graph_slam/include/g2o/edge_se3_plane.hpp

// g2o - General Graph Optimization
// Copyright (C) 2011 R. Kuemmerle, G. Grisetti, W. Burgard
// All rights reserved.
//
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// modification, are permitted provided that the following conditions are
// met:
//
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//   this list of conditions and the following disclaimer.
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#ifndef KKL_G2O_EDGE_SE3_PLANE_HPP
#define KKL_G2O_EDGE_SE3_PLANE_HPP

#include <g2o/types/slam3d/edge_se3.h>
#include <g2o/types/slam3d/vertex_se3.h>
#include <g2o/types/slam3d_addons/vertex_plane.h>

namespace g2o {
class EdgeSE3Plane : public g2o::BaseBinaryEdge<3, g2o::Plane3D, g2o::VertexSE3, g2o::VertexPlane> {
public:
  EIGEN_MAKE_ALIGNED_OPERATOR_NEW
  EdgeSE3Plane() : BaseBinaryEdge<3, g2o::Plane3D, g2o::VertexSE3, g2o::VertexPlane>() {}

  void computeError() override {
    const g2o::VertexSE3* v1 = static_cast<const g2o::VertexSE3*>(_vertices[0]);
    const g2o::VertexPlane* v2 = static_cast<const g2o::VertexPlane*>(_vertices[1]);

    Eigen::Isometry3d w2n = v1->estimate().inverse();
    Plane3D local_plane = w2n * v2->estimate();
    _error = local_plane.ominus(_measurement);
  }

  void setMeasurement(const g2o::Plane3D& m) override {
    _measurement = m;
  }

  virtual bool read(std::istream& is) override {
    Eigen::Vector4d v;
    is >> v(0) >> v(1) >> v(2) >> v(3);
    setMeasurement(Plane3D(v));
    for(int i = 0; i < information().rows(); ++i)
      for(int j = i; j < information().cols(); ++j) {
        is >> information()(i, j);
        if(i != j) information()(j, i) = information()(i, j);
      }
    return true;
  }
  virtual bool write(std::ostream& os) const override {
    Eigen::Vector4d v = _measurement.toVector();
    os << v(0) << " " << v(1) << " " << v(2) << " " << v(3) << " ";
    for(int i = 0; i < information().rows(); ++i)
      for(int j = i; j < information().cols(); ++j) os << " " << information()(i, j);
    return os.good();
  }
};
}  // namespace g2o

#endif