MeshReader.hpp

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#pragma once
 
#include <polyfem/mesh/MeshData.hpp>
 
#include <filesystem>
#include <istream>
 
namespace GEO
{
    class Mesh;
}
 
namespace polyfem::mesh
{
    class SurfaceMeshData
    {
    public:
        Eigen::MatrixXd vertices;
        Eigen::VectorXi points;
        Eigen::MatrixXi edges;
        Eigen::MatrixXi faces;
    };
 
    class MeshReader
    {
    public:
        static MeshData read_msh(const std::filesystem::path &path);
        static MeshData read_hybrid(std::istream &input, const std::string &description);
        static MeshData read_geogram(const std::filesystem::path &path);
        static MeshData from_geogram(GEO::Mesh &mesh);
 
        static SurfaceMeshData read_msh_surface(const std::filesystem::path &path);
        static SurfaceMeshData read_obj_surface(const std::filesystem::path &path);
        static bool read_triangle_surface(const std::filesystem::path &path, SurfaceMeshData &result);
        static SurfaceMeshData read_geogram_surface(const std::filesystem::path &path);
    };
} // namespace polyfem::mesh