/*M///////////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2013, Alfonso Sanchez-Beato, all rights reserved.
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#ifndef MAPAFFINE_H_
#define MAPAFFINE_H_

#include "map.hpp"

namespace cv {
namespace reg {

//! @addtogroup reg
//! @{

/*!
 * Defines an affine transformation
 */
class CV_EXPORTS_W MapAffine : public Map
{
public:
    /*!
     * Default constructor builds an identity map
     */
    CV_WRAP MapAffine();

    /*!
     * Constructor providing explicit values
     * \param[in] linTr Linear part of the affine transformation
     * \param[in] shift Displacement part of the affine transformation
     */
    CV_WRAP MapAffine(InputArray linTr, InputArray shift);

    /*!
     * Destructor
     */
    ~MapAffine();

    CV_WRAP void inverseWarp(InputArray img1, OutputArray img2) const CV_OVERRIDE;

    CV_WRAP cv::Ptr<Map> inverseMap() const CV_OVERRIDE;

    CV_WRAP void compose(cv::Ptr<Map> map) CV_OVERRIDE;

    CV_WRAP void scale(double factor) CV_OVERRIDE;

    /*!
     * Return linear part of the affine transformation
     * \return Linear part of the affine transformation
     */
     const cv::Matx<double, 2, 2>& getLinTr() const {
        return linTr_;
    }

    CV_WRAP void getLinTr(OutputArray linTr) const {
        Mat(linTr_).copyTo(linTr);
    }

    /*!
     * Return displacement part of the affine transformation
     * \return Displacement part of the affine transformation
     */
    const cv::Vec<double, 2>& getShift() const {
        return shift_;
    }

    CV_WRAP void getShift(OutputArray shift) const {
        Mat(shift_).copyTo(shift);
    }

private:
    cv::Matx<double, 2, 2> linTr_;
    cv::Vec<double, 2> shift_;
};

//! @}

}}  // namespace cv::reg

#endif  // MAPAFFINE_H_