utils.h

//
// Created by yaione on 3/3/2022.
//
 
#ifndef RMCV_UTILS_H
#define RMCV_UTILS_H
 
#include <cmath>
#include <vector>
#include <string>
#include <sys/stat.h>
#include <dirent.h>
#include <filesystem>
#include <sys/io.h>
#include <cstring>
#include "opencv2/opencv.hpp"
 
namespace rm {
    enum RectType {
        RECT_TALL = 0, RECT_SIDE = 1
    };
 
    enum FileType {
        FILETYPE_REGULAR_FILE = 0,
        FILETYPE_DIRECTORY = 1,
        FILETYPE_SYMBOLIC_LINK = 2,
        FILETYPE_SOCKET = 3,
        FILETYPE_UNKNOWN = -1
    };
 
    rm::FileType GetFileType(const char *filename);
 
    bool ListFiles(const char *path, std::vector<std::string> &filenames);
 
    cv::Rect
    GetROI(cv::Point2f *imagePoints, int pointsCount, float scaleFactor = 1.0f, const cv::Size &frameSize = {-1, -1},
           const cv::Rect &previous = {0, 0, 0, 0});
 
    cv::Rect GetROI(cv::Point2f *imagePoints, int pointsCount, const cv::Size2f &scaleFactor = {1, 1},
                    const cv::Size &frameSize = {-1, -1}, const cv::Rect &previous = {0, 0, 0, 0});
 
    void VerticesRectify(cv::RotatedRect &input, cv::Point2f *output, RectType type);
 
    void CalcPerspective(cv::Point2f input[4], cv::Point2f output[4], float outRatio = 1.0f);
 
    double NewtonIteration(double (*fd)(double), double x0 = 0, double error = 0.0001, int cycle = 1024);
 
    double
    NewtonIteration(double (*fd)(double, std::vector<double>), const std::vector<double> &literals, double x0 = 0,
                    double error = 0.0001, int cycle = 1024);
 
    double ProjectileMotionFD(double theta, std::vector<double> literals);
 
 
 
    float PointDistance(const cv::Point2f &pt1, const cv::Point2f &pt2);
 
    float PointDistance(const cv::Point2i &pt1, const cv::Point2i &pt2);
 
    cv::Point2f LineCenter(const cv::Point2f &pt1, const cv::Point2f &pt2);
 
    void
    ExtendCord(const cv::Point2f &pt1, const cv::Point2f &pt2, float deltaLen, cv::Point2f &dst1, cv::Point2f &dst2);
 
    std::string PathCombine(const std::string &path1, const std::string &path2);
 
    std::string int2str(int number);
}
 
#endif //RMCV_UTILS_H