OBJReader.hpp

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// Modified version of read_obj from libigl to include reading polyline elements
// as edges.
//
// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
//
// This Source Code Form is subject to the terms of the Mozilla Public License
// v. 2.0. If a copy of the MPL was not distributed with this file, You can
// obtain one at http://mozilla.org/MPL/2.0/.
 
#pragma once
 
#include <string>
#include <vector>
 
#include <Eigen/Core>
 
namespace polyfem::io
{
    class OBJReader
    {
    public:
        OBJReader() = delete;
 
        static bool read(
            const std::string obj_file_name,
            std::vector<std::vector<double>> &V,
            std::vector<std::vector<double>> &TC,
            std::vector<std::vector<double>> &N,
            std::vector<std::vector<int>> &F,
            std::vector<std::vector<int>> &FTC,
            std::vector<std::vector<int>> &FN,
            std::vector<std::vector<int>> &L);
 
        static bool read(
            FILE *obj_file,
            std::vector<std::vector<double>> &V,
            std::vector<std::vector<double>> &TC,
            std::vector<std::vector<double>> &N,
            std::vector<std::vector<int>> &F,
            std::vector<std::vector<int>> &FTC,
            std::vector<std::vector<int>> &FN,
            std::vector<std::vector<int>> &L);
 
        static bool read(
            const std::string obj_file_name,
            std::vector<std::vector<double>> &V,
            std::vector<std::vector<int>> &F,
            std::vector<std::vector<int>> &L);
 
        static bool read(
            const std::string str,
            Eigen::MatrixXd &V,
            Eigen::MatrixXi &E,
            Eigen::MatrixXi &F);
    };
} // namespace polyfem::io