Method DrawTrack

example/CarsCounting.cpp:35–132

\brief CarsCounting::DrawTrack \param frame \param track \param drawTrajectory \param framesCounters

/// \param framesCounters
///
void CarsCounting::DrawTrack(cv::Mat frame, const TrackingObject& track, bool drawTrajectory, int framesCounter, const std::string& /*userLabel*/)
{
    cv::Rect brect = track.m_rrect.boundingRect();

    m_resultsLog.AddTrack(framesCounter, track.m_ID, brect, track.m_type, track.m_confidence);
    m_resultsLog.AddRobustTrack(track.m_ID);

    if (track.m_isStatic)
    {
#if (CV_VERSION_MAJOR >= 4)
        cv::rectangle(frame, brect, cv::Scalar(255, 0, 255), 2, cv::LINE_AA);
#else
        cv::rectangle(frame, brect, cv::Scalar(255, 0, 255), 2, CV_AA);
#endif
    }
    else
    {
#if (CV_VERSION_MAJOR >= 4)
        cv::rectangle(frame, brect, cv::Scalar(0, 255, 0), 1, cv::LINE_AA);
#else
        cv::rectangle(frame, brect, cv::Scalar(0, 255, 0), 1, CV_AA);
#endif

        if (!m_geoParams.Empty())
        {
            int traceSize = static_cast<int>(track.m_trace.size());
            int period = std::min(2 * cvRound(m_fps), traceSize);
            const auto& from = m_geoParams.Pix2Geo(track.m_trace[traceSize - period]);
            const auto& to = m_geoParams.Pix2Geo(track.m_trace[traceSize - 1]);
            auto dist = DistanceInMeters(from, to);

            std::stringstream label;
            if (period >= cvRound(m_fps) / 4)
            {
                auto velocity = (3.6f * dist * m_fps) / period;
                //std::cout << TypeConverter::Type2Str(track.m_type) << ": distance " << std::fixed << std::setw(2) << std::setprecision(2) << dist << " on time " << (period / m_fps) << " with velocity " << velocity << " km/h: " << track.m_confidence << std::endl;
                if (velocity < 1.f || std::isnan(velocity))
                    velocity = 0;
                //label << TypeConverter::Type2Str(track.m_type) << " " << std::fixed << std::setw(2) << std::setprecision(2) << velocity << " km/h";
                label << TypeConverter::Type2Str(track.m_type) << " " << cvRound(velocity) << " km/h";

                int baseLine = 0;
                double fontScale = (frame.cols < 2000) ? 0.5 : 1.;
                cv::Size labelSize = cv::getTextSize(label.str(), cv::FONT_HERSHEY_TRIPLEX, fontScale, 1, &baseLine);

                if (brect.x < 0)
                {
                    brect.width = std::min(brect.width, frame.cols - 1);
                    brect.x = 0;
                }
                else if (brect.x + brect.width >= frame.cols)
                {
                    brect.x = std::max(0, frame.cols - brect.width - 1);
                    brect.width = std::min(brect.width, frame.cols - 1);
                }
                if (brect.y - labelSize.height < 0)
                {
                    brect.height = std::min(brect.height, frame.rows - 1);