C++读入"N,X,Y,Z"格式文本文件到Eigen3Matrix

#pragma once
#include 
#include 
#include 
#include 
#include 
#include 
#include 

using namespace std;
using namespace Eigen;

// 字符串分割
void SplitString(const std::string& s, std::vector& v, const std::string& c)
{
 std::string::size_type pos1, pos2;
 pos2 = s.find(c);
 pos1 = 0;
 while (std::string::npos != pos2)
 {
 v.push_back(s.substr(pos1, pos2 - pos1));

 pos1 = pos2 + c.size();
 pos2 = s.find(c, pos1);
 }
 if (pos1 != s.length())
 v.push_back(s.substr(pos1));
}
// 读入相应格式的xyz文件
void ReadXYZFile(string filepath, MatrixXd& origin_data)
{
 ifstream infile;
 infile.open(filepath);
 cout <<"Reading XYZ File: " < vector_data;
 SplitString(line, vector_data, ",");
 for (int c = 0; c