CPoint2D.cpp

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/* +------------------------------------------------------------------------+
   |                     Mobile Robot Programming Toolkit (MRPT)            |
   |                          http://www.mrpt.org/                          |
   |                                                                        |
   | Copyright (c) 2005-2018, 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 |
   +------------------------------------------------------------------------+ */

#include "poses-precomp.h"  // Precompiled headers

#include <mrpt/poses/CPoint2D.h>
#include <mrpt/poses/CPose2D.h>
#include <mrpt/serialization/CArchive.h>
#include <limits>

using namespace mrpt::poses;
using namespace mrpt::math;

IMPLEMENTS_SERIALIZABLE(CPoint2D, CSerializable, mrpt::poses)

uint8_t CPoint2D::serializeGetVersion() const { return 1; }
void CPoint2D::serializeTo(mrpt::serialization::CArchive& out) const
{
    out << m_coords[0] << m_coords[1];
}
void CPoint2D::serializeFrom(mrpt::serialization::CArchive& in, uint8_t version)
{
    switch (version)
    {
        case 0:
        {
            // The coordinates:
            float f;
            in >> f;
            m_coords[0] = f;
            in >> f;
            m_coords[1] = f;
        }
        break;
        case 1:
        {
            // The coordinates:
            in >> m_coords[0] >> m_coords[1];
        }
        break;
        default:
            MRPT_THROW_UNKNOWN_SERIALIZATION_VERSION(version)
    };
}

/*---------------------------------------------------------------
The operator D="this"-b is the pose inverse compounding operator.
   The resulting pose "D" is the diference between this pose and "b"
 ---------------------------------------------------------------*/
CPoint2D CPoint2D::operator-(const CPose2D& b) const
{
    const double ccos = cos(b.phi());
    const double ssin = sin(b.phi());
    const double Ax = x() - b.x();
    const double Ay = y() - b.y();

    return CPoint2D(Ax * ccos + Ay * ssin, -Ax * ssin + Ay * ccos);
}

void CPoint2D::setToNaN()
{
    for (int i = 0; i < 2; i++)
        m_coords[i] = std::numeric_limits<double>::quiet_NaN();
}

mrpt::math::TPoint2D CPoint2D::asTPoint() const
{
    return mrpt::math::TPoint2D(x(), y());
}