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讀取數(shù)據(jù)代碼：

所用離散二維點(diǎn)數(shù)據(jù)（由于可視化需要輸入三維點(diǎn)數(shù)據(jù)以及其法向量，實(shí)際只用到了每行的前兩個(gè)數(shù)據(jù)）：

數(shù)據(jù)點(diǎn)可視化顯示：

#include "pch.h"

std::vector<techlego::pos2d> read_asc_file(const std::wstring& path)

{

std::ifstream ifs(path);

std::string line;

std::vector<techlego::pos2d>res;

while (std::getline(ifs, line))

{

if (line.empty())

{

continue;

}

float d0{};

float d1{};

float d2{};

float d3{};

float d4{};

float d5{};

sscanf_s(line.data(), "%f %f %f %f %f %f", &d0, &d1, &d2, &d3, &d4, &d5);

res.emplace_back(techlego::pos2d{ d0, d1 });

}

return res;

}

int main()

{

//測(cè)試數(shù)據(jù)路徑

std::wstring data_path = L"D:\\soft_product1\\techlego_sdk\\C++\\examples\\擬合2d圓\\data.asc";

//讀取測(cè)試數(shù)據(jù)

std::vector<techlego::pos2d> points = read_asc_file(data_path);

double x{}, y{}, r{};

//進(jìn)行2D圓粗?jǐn)M合

auto error = techlego::fit_circle_fast(points, x, y, r);

std::cout << "error:" << error << "\n";

std::cout << "x:" << x << "\n";

std::cout << "y:" << y << "\n";

std::cout << "r:" << r << "\n\n";

//根據(jù)粗?jǐn)M合的結(jié)果再進(jìn)行2D圓擬合

error = techlego::fit_cricle_fine(points, x, y, r);

std::cout << "error:" << error << "\n";

std::cout << "x:" << x << "\n";

std::cout << "y:" << y << "\n";

std::cout << "r:" << r << "\n";

return 0;

}