Method untransform

CvPlot/inc/CvPlot/core/Transformation.h:65–67

        return cv::Point2d(point.x, std::log(point.y));
    }
    cv::Point2d untransform(const cv::Point2d &point)const override {
        return cv::Point2d(point.x, std::exp(point.y));
    }
    std::pair<double, double> transformYLim(std::pair<double, double> ylim)const override{
        return LogLogTransformation::transformLogLim(ylim);
    }