Function fixRatio

CvPlot/inc/CvPlot/Internal/util.h:46–59

template<typename T>
cv::Rect_<T> fixRatio(cv::Rect_<T> rect, double ratio, bool extend) {
    normalize(rect);
    double curRatio = rect.height / (double)rect.width;
    cv::Rect_<T> fixed = rect;
    if ((curRatio < ratio) == extend) {
        fixed.height = static_cast<T>(rect.width * ratio);
        fixed.y -= (fixed.height - rect.height) / 2;
    }
    else {
        fixed.width = static_cast<T>(rect.height / ratio);
        fixed.x -= (fixed.width - rect.width) / 2;
    }
    return fixed;
}

}
}