c++ 从txt读取数据 按照特殊字符拆分 gnss

 

 CMakeLists.txt

cmake_minimum_required(VERSION 3.10)

project(ReadTextFile)

# 设置 C++ 标准为 C++11
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED True)

# 添加可执行文件，并链接主程序文件和自定义类的头文件
add_executable(main main.cpp )

　　

main.cpp

#include <iostream>
#include <fstream>
#include <sstream>
#include <vector>
#include <string>

#include<iomanip>

using namespace std;


class gnss_data
{

public:
   // 原始数据
   double time;
   double lat;
   double lon;
   double high;
    
   // ENU坐标GNSS的原点
   double lat0;
   double lon0;
   double high0;

   // 在ENU坐标下
   double x;
   double y;
   double z;

public:
   // 初始化 赋予原始数据
   gnss_data(double time_,double lat_,double lon_,double high_){
        time=time_;
        lat=lat_;
        lon=lon_;
        high=high_;
   };

   bool Set_orinGnss(double lat0_,double lon0_,double high0_){
     lat0=lat0_;
     lon0=lon0_;
     high0=high0_;
   }

   bool Set_ENU(double x_,double y_,double z_){
     x=x_;
     y=y_;
     z=z_;
   }

};


class GNSS_TextFileReader {
public:
    std::string filename;
    char delimiter;
    std::vector<std::vector<std::string>> data; // 二维向量，存储每一行拆分后的数据
    std::vector<gnss_data> gnss_List;


 
public:
    GNSS_TextFileReader(const std::string &filename, char delimiter) 
        : filename(filename), delimiter(delimiter) {}

    bool readFile() {
        std::ifstream file(filename);
        if (!file.is_open()) {
            std::cerr << "Error opening file " << filename << std::endl;
            return false;
        }

        std::string line;
        while (std::getline(file, line)) {
            std::stringstream ss(line);
            std::string token;
            std::vector<std::string> row;

            while (std::getline(ss, token, delimiter)) { // delimiter 分割
                row.push_back(token);
            }
            data.push_back(row);//  保存string数据double

            gnss_data gnss_data_i( stod(row[0]),stod(row[1]),stod(row[2]),stod(row[3])); //保存double数据
            gnss_List.push_back(gnss_data_i);
        }

        file.close();



        return true;
    }

    void printData() {
        // for (const auto &row : data) {
        //     for (const auto &col : row) {
        //         std::cout << col << " ";
        //     }
        //     std::cout << std::endl;
        // }

       //for (const auto &gnss_List_i : gnss_List) {  
       for(int i=0;i<gnss_List.size();i++){
        gnss_data gnss_List_i=gnss_List[i];
        cout<< "编号 " << i << " 时间戳 "<< gnss_List_i.time<< " 纬度 " << gnss_List_i.lat <<  "  经度 " << gnss_List_i.lon<< "  高度 "<<  gnss_List_i.high << fixed << setprecision(10)<< endl;
       }

    }

    const std::vector<std::vector<std::string>>& getData() const {
        return data;
    }

    const std::vector<gnss_data>& get_gnss_List() const {
        return gnss_List;
    }
};

int main() {

    string path_="/home/dongdong/2project/0data/NWPU/";
    path_=path_+"FHY_config/FHY_gps.txt";

    GNSS_TextFileReader reader(path_, ' '); // 读取路径 分隔符号 
    
    if (reader.readFile()) {
        //reader.printData();
        std::vector<gnss_data> gnss_Lists =  reader.get_gnss_List();
        for(int i=0;i<gnss_Lists.size();i++){
            gnss_data gnss_List_i=gnss_Lists[i];
            cout<< "编号 " << i << " 时间戳 "<< gnss_List_i.time<< " 纬度 " << gnss_List_i.lat <<  "  经度 " << gnss_List_i.lon<< "  高度 "<<  gnss_List_i.high << fixed << setprecision(10)<< endl;
        }
    }





    return 0;
}