C++ DXF转NC代码

DXF是一种CAD文件格式，NC代码是数控机床的控制代码，将DXF转换成NC代码可以实现将CAD图纸转换为机床加工程序。

以下是一个基于C++的DXF转NC代码的示例：

#include <iostream>
#include <fstream>
#include <vector>
#include <string>
using namespace std;

struct Point {
    double x, y;
};

struct Line {
    Point start, end;
};

vector<Line> parseDXF(string filename) {
    vector<Line> lines;
    ifstream fin(filename);
    string line;
    while (getline(fin, line)) {
        if (line == "LINE") {
            getline(fin, line);
            Point start, end;
            while (line != "  8") {
                if (line == " 10") {
                    fin >> start.x;
                } else if (line == " 20") {
                    fin >> start.y;
                } else if (line == " 11") {
                    fin >> end.x;
                } else if (line == " 21") {
                    fin >> end.y;
                }
                getline(fin, line);
            }
            lines.push_back({start, end});
        }
    }
    fin.close();
    return lines;
}

string toNC(Line line) {
    string nc = "G01 ";
    nc += "X" + to_string(line.start.x) + " ";
    nc += "Y" + to_string(line.start.y) + " ";
    nc += "Z0.0 ";
    nc += "F500.0\n";
    nc += "G01 ";
    nc += "X" + to_string(line.end.x) + " ";
    nc += "Y" + to_string(line.end.y) + " ";
    nc += "Z0.0 ";
    nc += "F500.0\n";
    return nc;
}

int main() {
    string dxf_filename = "example.dxf";
    string nc_filename = "example.nc";
    vector<Line> lines = parseDXF(dxf_filename);
    ofstream fout(nc_filename);
    for (Line line : lines) {
        fout << toNC(line);
    }
    fout.close();
    return 0;
}

以上代码实现了从DXF文件中解析出线段数据，然后将每个线段转换为NC代码字符串，最后将所有NC代码写入到文件中。这个示例代码可能还需要根据具体的DXF文件格式和NC代码格式进行调整。