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 * Software License Agreement (BSD License)
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 * Copyright 2008-2009  Marius Muja (mariusm@cs.ubc.ca). All rights reserved.
 * Copyright 2008-2009  David G. Lowe (lowe@cs.ubc.ca). All rights reserved.
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#include "precomp.hpp"
#include "opencv2/flann.hpp"

namespace cvflann
{
    /** Global variable indicating the distance metric to be used.
     * \deprecated Provided for backward compatibility
    */
    flann_distance_t flann_distance_type_ = FLANN_DIST_L2;
    flann_distance_t flann_distance_type() { return flann_distance_type_; }

    /**
     * Set distance type to used
     * \deprecated
     */
    void set_distance_type(flann_distance_t distance_type, int /*order*/)
    {
        printf("[WARNING] The cvflann::set_distance_type function is deperecated, "
            "use cv::flann::GenericIndex<Distance> instead.\n");
        if (distance_type != FLANN_DIST_L1 && distance_type != FLANN_DIST_L2) {
            printf("[ERROR] cvflann::set_distance_type only provides backwards compatibility "
            "for the L1 and L2 distances. "
            "For other distance types you must use cv::flann::GenericIndex<Distance>\n");
        }
        flann_distance_type_ = distance_type;
    }

}
