CEllipsoidInverseDepth2D.h

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/* +---------------------------------------------------------------------------+
   |                     Mobile Robot Programming Toolkit (MRPT)               |
   |                          http://www.mrpt.org/                             |
   |                                                                           |
   | Copyright (c) 2005-2017, Individual contributors, see AUTHORS file        |
   | See: http://www.mrpt.org/Authors - All rights reserved.                   |
   | Released under BSD License. See details in http://www.mrpt.org/License    |
   +---------------------------------------------------------------------------+ */
#ifndef opengl_CEllipsoidInverseDepth2D_H
#define opengl_CEllipsoidInverseDepth2D_H

#include <mrpt/opengl/CGeneralizedEllipsoidTemplate.h>

namespace mrpt
{
        namespace opengl
        {
                // This must be added to any CSerializable derived class:
                DEFINE_SERIALIZABLE_PRE_CUSTOM_BASE_LINKAGE( CEllipsoidInverseDepth2D, CRenderizableDisplayList, OPENGL_IMPEXP )

                /** An especial "ellipsoid" in 3D computed as the uncertainty iso-surfaces of a (inv_range,yaw) variable.
                  *  The parameter space of this ellipsoid comprises these variables (in this order):
                  *   - inv_range: The inverse distance from the sensor to the feature.
                  *   - yaw: Angle for the rotation around +Z ("azimuth").
                  *
                  *  This parameterization is a 2D version of that presented in the paper:
                  *   - Civera, J. and Davison, A.J. and Montiel, J., "Inverse depth parametrization for monocular SLAM", T-RO, 2008.
                  *
                  *  This class expects you to provide a mean vector of length 4 and a 4x4 covariance matrix, set with \a setCovMatrixAndMean().
                  *
                  * Please read the documentation of CGeneralizedEllipsoidTemplate::setQuantiles() for learning
                  *  the mathematical details about setting the desired confidence interval.
                  *
                  *  <div align="center">
                  *  <table border="0" cellspan="4" cellspacing="4" style="border-width: 1px; border-style: solid;">
                  *   <tr> <td> mrpt::opengl::CEllipsoidInverseDepth2D </td> <td> \image html preview_CEllipsoidInverseDepth2D.png </td> </tr>
                  *  </table>
                  *  </div>
                  *
                  * \ingroup mrpt_opengl_grp
                  */
                class OPENGL_IMPEXP CEllipsoidInverseDepth2D : public CGeneralizedEllipsoidTemplate<2>
                {
                        typedef CGeneralizedEllipsoidTemplate<2> BASE;
                        DEFINE_SERIALIZABLE( CEllipsoidInverseDepth2D )

                public:
                        /** The maximum range to be used as a correction when a point of the ellipsoid falls in the negative ranges (default: 1e6) */
                        void setUnderflowMaxRange(const double maxRange) { m_underflowMaxRange = maxRange; }
                        double getUnderflowMaxRange() const { return m_underflowMaxRange; }


                protected:
                        /** To be implemented by derived classes: maps, using some arbitrary space transformation, a list of points 
                          *  defining an ellipsoid in parameter space into their corresponding points in 2D/3D space.
                          */
                        virtual void transformFromParameterSpace(
                                const std::vector<BASE::array_parameter_t> &in_pts,
                                std::vector<BASE::array_point_t> & out_pts) const MRPT_OVERRIDE;
                private:
                        double m_underflowMaxRange; 

                        /** Constructor
                          */
                        CEllipsoidInverseDepth2D() : m_underflowMaxRange(1e6)
                        {
                        }
                        /** Private, virtual destructor: only can be deleted from smart pointers */
                        virtual ~CEllipsoidInverseDepth2D() { }
                };
                DEFINE_SERIALIZABLE_POST_CUSTOM_BASE_LINKAGE( CEllipsoidInverseDepth2D, CRenderizableDisplayList, OPENGL_IMPEXP )

        } // end namespace

} // End of namespace

#endif