OBJWriter.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 <Eigen/Core>
 
namespace polyfem::io
{
    class OBJWriter
    {
    public:
        OBJWriter() = delete;
 
        static bool write(
            const std::string &path,
            const Eigen::MatrixXd &v,
            const Eigen::MatrixXi &e,
            const Eigen::MatrixXi &f);
 
        static bool write(
            const std::string &path,
            const Eigen::MatrixXd &v,
            const Eigen::MatrixXi &e_or_f)
        {
            if (e_or_f.cols() == 2)
                return write(path, v, e_or_f, Eigen::MatrixXi());
            else
                return write(path, v, Eigen::MatrixXi(), e_or_f);
        }
    };
} // namespace polyfem::io