edge_xy_prior.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
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#ifndef G2O_EDGE_XY_PRIOR_H
#define G2O_EDGE_XY_PRIOR_H
 
#include "g2o/config.h"
#include "g2o/core/base_unary_edge.h"
#include "g2o_types_slam2d_api.h"
#include "vertex_point_xy.h"
 
namespace g2o {
 
class G2O_TYPES_SLAM2D_API EdgeXYPrior
    : public BaseUnaryEdge<2, Vector2, VertexPointXY> {
 public:
  EIGEN_MAKE_ALIGNED_OPERATOR_NEW
  EdgeXYPrior();
 
  void computeError() {
    const VertexPointXY* v = static_cast<const VertexPointXY*>(_vertices[0]);
    _error = v->estimate() - _measurement;
  }
  virtual bool read(std::istream& is);
  virtual bool write(std::ostream& os) const;
 
  virtual void setMeasurement(const Vector2& m) { _measurement = m; }
 
  virtual bool setMeasurementData(const double* d) {
    _measurement = Vector2(d[0], d[1]);
    return true;
  }
 
  virtual bool getMeasurementData(double* d) const {
    Eigen::Map<Vector2> m(d);
    m = _measurement;
    return true;
  }
 
  virtual int measurementDimension() const { return 2; }
 
  virtual bool setMeasurementFromState() {
    const VertexPointXY* v = static_cast<const VertexPointXY*>(_vertices[0]);
    _measurement = v->estimate();
    return true;
  }
 
  virtual double initialEstimatePossible(const OptimizableGraph::VertexSet&,
                                         OptimizableGraph::Vertex*) {
    return 0.;
  }
#ifndef NUMERIC_JACOBIAN_TWO_D_TYPES
  virtual void linearizeOplus();
#endif
};
 
}  // namespace g2o
 
#endif