Method DrawData

example/CarsCounting.cpp:231–295

\brief CarsCounting::DrawData \param frame

/// \param frame
///
void CarsCounting::DrawData(cv::Mat frame, const std::vector<TrackingObject>& tracks, int framesCounter, int currTime)
{
    m_logger->info("Frame ({1}): tracks = {2}, time = {3}", framesCounter, tracks.size(), currTime);

#if 1 // Debug output
    if (!m_geoParams.Empty())
    {
        std::vector<cv::Point> points = m_geoParams.GetFramePoints();
        for (size_t i = 0; i < points.size(); ++i)
        {
            cv::line(frame, points[i % points.size()], points[(i + 1) % points.size()], cv::Scalar(255, 255, 255), 1, cv::LINE_AA);
        }
    }
#endif

    for (const auto& track : tracks)
    {
        if (track.m_isStatic)
        {
            DrawTrack(frame, track, true, framesCounter);
        }
        else
        {
            if (track.IsRobust(cvRound(m_fps / 4),          // Minimal trajectory size
                               0.8f,                        // Minimal ratio raw_trajectory_points / trajectory_lenght
                               cv::Size2f(0.1f, 8.0f))      // Min and max ratio: width / height
                    )
            {
                DrawTrack(frame, track, true, framesCounter);

                CheckLinesIntersection(track, static_cast<float>(frame.cols), static_cast<float>(frame.rows));
            }
        }
    }
    //m_detector->CalcMotionMap(frame);

    if (!m_geoParams.Empty())
    {
        cv::Mat geoMap = m_geoParams.DrawTracksOnMap(tracks);
		if (!geoMap.empty())
		{
#ifndef SILENT_WORK
			cv::namedWindow("Geo map", cv::WINDOW_NORMAL);
			cv::imshow("Geo map", geoMap);
#endif
            if (true)
            {
                double k = 0.25;
                cv::Size mapPreview(cvRound(frame.cols * k), cvRound(((frame.cols * k) / geoMap.cols) * geoMap.rows));
                cv::resize(geoMap, frame(cv::Rect(frame.cols - mapPreview.width - 1, frame.rows - mapPreview.height - 1, mapPreview.width, mapPreview.height)), mapPreview, 0, 0, cv::INTER_CUBIC);
            }
		}
    }

    for (const auto& rl : m_lines)
    {
        rl.Draw(frame);
    }